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• About the K computer

  - by nospam(at)example.com (Joerg Moellenkamp)

  Okay ? after getting yet another mail because of the new #1 on the Top500 list, I want to add some comments from my side: Yes, the system is using SPARC processor. And that is great news for a SPARC fan like me. It is using the SPARC VIIIfx processor from Fujitsu clocked at 2 GHz. No, it isn't the only one. Most people are saying there are two in the Top500 list using SPARC (#77 JAXA and #1 K) but in fact there are three. The Tianhe-1 (#2 on the Top500 list) super computer contains 2048 Galaxy "FT-1000" 1 GHz 8-core processors. Don't know it? The FeiTeng-1000 ? this proc is a 8 core, 8 threads per core, 1 ghz processor made in China. And it's SPARC based. By the way ? this sounds really familiar to me ? perhaps the people just took the opensourced UltraSPARC-T2 design, because some of the parameters sound just to similar. However it looks like that Tianhe-1 is using the SPARCs as input nodes and not as compute notes. No, I don't see it as the next M-series processor. Simple reason: You can't create SMP systems out of them ? it simply hasn't the functionality to do so. Even when there are multiple CPUs on a single board, they are not connected like an SMP/NUMA machine to a shared memory machine ? they are connected with the cluster interconnect (in this case the Tofu interconnect) and work like a large cluster. Yes, it has a lot of oomph in Linpack ? however I assume a lot came from the extensions to the SPARCv9 standard. No, Linpack has no relevance for any commercial workload ? Linpack is such a special load, that even some HPC people are arguing that it isn't really a good benchmark for HPC. It's embarrassingly parallel, it can work with relatively small interconnects compared to the interconnects in SMP systems (however we get in spheres SMP interconnects where a few years ago). Amdahl isn't hitting that hard when running Linpack. Yes, it's a good move to use SPARC. At some time in the last 10 years, there was an interesting twist in perception: SPARC was considered as proprietary architecture and x86 was the open architecture. However it's vice versa ? try to create a x86 clone and you have a lot of intellectual property problems, create a SPARC clone and you have to spend 100 bucks or so to get the specification from the SPARC Foundation and develop your own SPARC processor. Fujitsu is doing this for a long time now. So they had their own processor, their own know-how. So why was SPARC a good choice? Well ? essentially Fujitsu can do what they want with their core as it is their core, for example adding the extensions to the SPARCv9 chipset ? getting Intel to create extensions to x86 to help you with your product is a little bit harder. So Fujitsu could do they needed to do with their processor in order to create such a supercomputer. No, the K is really using no FPGA or GPU as accelerators. The K is really using the CPU at doing this job. Yes, it has a significantly enhanced FPU capable to execute 8 instructions in parallel. No, it doesn't run Solaris. Yes, it uses Linux. No, it doesn't hurt me ... as my colleague Roland Rambau (he knows a lot about HPC) said once to me ... it doesn't matter which OS is staying out of the way of the workload in HPC.

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• Investigating on xVelocity (VertiPaq) column size

  - by Marco Russo (SQLBI)

    In January I published an article about how to optimize high cardinality columns in VertiPaq. In the meantime, VertiPaq has been rebranded to xVelocity: the official name is now “xVelocity in-memory analytics engine (VertiPaq)” but using xVelocity and VertiPaq when we talk about Analysis Services has the same meaning. In this post I’ll show how to investigate on columns size of an existing Tabular database so that you can find the most important columns to be optimized. A first approach can be looking in the DataDir of Analysis Services and look for the folder containing the database. Then, look for the biggest files in all subfolders and you will find the name of a file that contains the name of the most expensive column. However, this heuristic process is not very optimized. A better approach is using a DMV that provides the exact information. For example, by using the following query (open SSMS, open an MDX query on the database you are interested to and execute it) you will see all database objects sorted by used size in a descending way. SELECT * FROM $SYSTEM.DISCOVER_STORAGE_TABLE_COLUMN_SEGMENTS ORDER BY used_size DESC You can look at the first rows in order to understand what are the most expensive columns in your tabular model. The interesting data provided are: TABLE_ID: it is the name of the object – it can be also a dictionary or an index COLUMN_ID: it is the column name the object belongs to – you can also see ID_TO_POS and POS_TO_ID in case they refer to internal indexes RECORDS_COUNT: it is the number of rows in the column USED_SIZE: it is the used memory for the object By looking at the ration between USED_SIZE and RECORDS_COUNT you can understand what you can do in order to optimize your tabular model. Your options are: Remove the column. Yes, if it contains data you will never use in a query, simply remove the column from the tabular model Change granularity. If you are tracking time and you included milliseconds but seconds would be enough, round the data source column to the nearest second. If you have a floating point number but two decimals are good enough (i.e. the temperature), round the number to the nearest decimal is relevant to you. Split the column. Create two or more columns that have to be combined together in order to produce the original value. This technique is described in VertiPaq optimization article. Sort the table by that column. When you read the data source, you might consider sorting data by this column, so that the compression will be more efficient. However, this technique works better on columns that don’t have too many distinct values and you will probably move the problem to another column. Sorting data starting from the lower density columns (those with a few number of distinct values) and going to higher density columns (those with high cardinality) is the technique that provides the best compression ratio. After the optimization you should be able to reduce the used size and improve the count/size ration you measured before. If you are interested in a longer discussion about internal storage in VertiPaq and you want understand why this approach can save you space (and time), you can attend my 24 Hours of PASS session “VertiPaq Under the Hood” on March 21 at 08:00 GMT.

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• Juggling with JDKs on Apple OS X

  - by Blueberry Coder

  I recently got a shiny new MacBook Pro to help me support our ADF Mobile customers. It is really a wonderful piece of hardware, although I am still adjusting to Apple's peculiar keyboard layout. Did you know, for example, that the « delete » key actually performs a « backspace »? But I disgress... As you may know, ADF Mobile development still requires JDeveloper 11gR2, which in turn runs on Java 6. On the other hand, JDeveloper 12c needs JDK 7. I wanted to install both versions, and wasn't sure how to do it.   If you remember, I explained in a previous blog entry how to install JDeveloper 11gR2 on Apple's OS X. The trick was to use the /usr/libexec/java_home command in order to invoke the proper JDK. In this case, I could have done the same thing; the two JDKs can coexist without any problems, since they install in completely different locations. But I wanted more than just installing JDeveloper. I wanted to be able to select my JDK when using the command line as well. On Windows, this is easy, since I keep all my JDKs in a central location. I simply have to move to the appropriate folder or type the folder name in the command I want to execute. Problem is, on OS X, the paths to the JDKs are... let's say convoluted.  Here is the one for Java 6. /System/Library/Java/JavaVirtualMachines/1.6.0.jdk/Contents/Home The Java 7 path is not better, just different. /Library/Java/JavaVirtualMachines/jdk1.7.0_45.jdk/Contents/Home Intuitive, isn't it? Clearly, I needed something better... On OS X, the default command shell is bash. It is possible to configure the shell environment by creating a file named « .profile » in a user's home folder. Thus, I created such a file and put the following inside: export JAVA_7_HOME=$(/usr/libexec/java_home -v1.7) export JAVA_6_HOME=$(/usr/libexec/java_home -v1.6) export JAVA_HOME=$JAVA_7_HOME alias java6='export JAVA_HOME=$JAVA_6_HOME' alias java7='export JAVA_HOME=$JAVA_7_HOME'  The first two lines retrieve the current paths for Java 7 and Java 6 and store them in two environment variables. The third line marks Java 7 as the default. The last two lines create command aliases. Thus, when I type java6, the value for JAVA_HOME is set to JAVA_6_HOME, for example.  I now have an environment which works even better than the one I have on Windows, since I can change my active JDK on a whim. Here a sample, fresh from my terminal window. fdesbien-mac:~ fdesbien$ java6 fdesbien-mac:~ fdesbien$ java -version java version "1.6.0_65" Java(TM) SE Runtime Environment (build 1.6.0_65-b14-462-11M4609) Java HotSpot(TM) 64-Bit Server VM (build 20.65-b04-462, mixed mode) fdesbien-mac:~ fdesbien$ fdesbien-mac:~ fdesbien$ java7 fdesbien-mac:~ fdesbien$ java -version java version "1.7.0_45" Java(TM) SE Runtime Environment (build 1.7.0_45-b18) Java HotSpot(TM) 64-Bit Server VM (build 24.45-b08, mixed mode) fdesbien-mac:~ fdesbien$ Et voilà! Maximum flexibility without downsides, just I like it. 

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• Framework for Everything - Where to begin? [Longer post]

  - by SquaredSoft

  Back story of this question, feel free to skip down for the specific question Hello, I've been very interested in the idea of abstract programming the last few years. I've made about 30 attempts at creating a piece of software that is capable of almost anything you throw at it. I've undertook some attempts at this that have taken upwards of a year, while getting close, never releasing it beyond my compiler. This has been something I've always tried wrapping my head around, and something is always missing. With the title, I'm sure you're assuming, "Yes of course you noob! You can't account for everything!" To which I have to reply, "Why not?" To give you some background into what I'm talking about, this all started with doing maybe a shade of gray hat SEO software. I found myself constantly having to create similar, but slightly different sets of code. I've gone through as many iterations of way to communicate on http as the universe has particles. "How many times am I going to have to write this multi-threaded class?" is something I found myself asking a lot. Sure, I could create a class library, and just work with that, but I always felt I could optimize what I had, which often was a large undertaking and typically involved frequent use of the CRTL+A keyboard shortcut, mixed with the delete button. It dawned on me that it was time to invest in a plugin system. This would allow me to simply add snippets of code. as time went on, and I could subversion stuff out, and distribute small chunks of code, rather than something that encompasses only a specific function or design. This comes with its own complexity, of course, and by the time I had finished the software scope for this addition, it hit me that I would want to add to everything in the software, not just a new http method, or automation code for a specific website. Great, we're getting more abstract. However, the software that I have in my mind comes down to a quite a few questions regarding its execution. I have to have some parameters to what I am going to do. After writing what the perfect software would do in my mind, I came up with this as a list of requirements: Should be able to use networking A "Macro" or "Expression system" which would allow people to do something like : =First(=ParseToList(=GetUrl("http://www.google.com?q=helloworld!"), Template.Google)) Multithreaded Able to add UI elements through some type of XML -- People can make their own addons etc. Can use third party API through the plugins, such as Microsoft CRM, Exchange, etc. This would allow the software to essentially be used for everything. Really, any task you wish to automate, in a simple way. Making the UI was as also extremely hard. How do you do all of this? Its very difficult. So my question: With so many attempts at this, I'm out of ideas how to successfully complete this. I have a very specific idea in my mind, but I keep failing to execute it. I'm a self taught programmer. I've been doing it for years, and work professionally in it, but I've never encountered something that would be as complex and in-depth as a system which essentially does everything. Where would you start? What are the best practices for design? How can I avoid constantly having to go back and optimize my software. What can I do to generalize this and draw everything out to completion. These are things I struggle with. P.s., I'm using c# as my main language. I feel like in this example, I might be hitting the outer limit of the language, although, I don't know if that is the case, or if I'm just a bad programmer. Thanks for your time.

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• Using HTML5 Today part 3&ndash; Using Polyfills

  - by Steve Albers

  Shims helps when adding semantic tags to older IE browsers, but there is a huge range of other new HTML5 features that having varying support on browsers.  Polyfills are JavaScript code and/or browser plug-ins that can provide older or less featured browsers with API support.  The best polyfills will detect the whether the current browser has native support, and only adds the functionality if necessary.  The Douglas Crockford JSON2.js library is an example of this approach: if the browser already supports the JSON object, nothing changes.  If JSON is not available, the library adds a JSON property in the global object. This approach provides some big benefits: It lets you add great new HTML5 features to your web sites sooner. It lets the developer focus on writing to the up-and-coming standard rather than proprietary APIs. Where most one-off legacy code fixes tends to break down over time, well done polyfills will stop executing over time (as customer browsers natively support the feature) meaning polyfill code may not need to be tested against new browsers since they will execute the native methods instead. Your should also remember that Polyfills represent an entirely separate code path (and sometimes plug-in) that requires testing for support.  Also Polyfills tend to run on older browsers, which often have slower JavaScript performance.  As a result you might find that performance on older browsers is not comparable. When looking for Polyfills you can start by checking the Modernizr GitHub wiki or the HTML5 Please site. For an example of a polyfill consider a page that writes a few geometric shapes on a <canvas> <script src="jquery-1.7.1.min.js"><script> <script> $(document).ready(function () { drawCanvas(); }); function drawCanvas() { var context = $("canvas")[0].getContext('2d'); //background context.fillStyle = "#8B0000"; context.fillRect(5, 5, 300, 100); // emptybox context.strokeStyle = "#B0C4DE"; context.lineWidth = 4; context.strokeRect(20, 15, 80, 80); // circle context.arc(160, 55, 40, 0, Math.PI * 2, false); context.fillStyle = "#4B0082"; context.fill(); </script>   The result is a simple static canvas with a box & a circle:   …to enable this functionality on a pre-canvas browser we can find a polyfill.  A check on html5please.com references  FlashCanvas.  Pull down the zip and extract the files (flashcanvas.js, flash10canvas.swf, etc) to a directory on your site.  Then based on the documentation you need to add a single line to your original HTML file: <!--[if lt IE 9]><script src="flashcanvas.js"></script><![endif]—> …and you have canvas functionality!  The IE conditional comments ensure that the library is only loaded in browsers where it is useful, improving page load & processing time. Like all Polyfills, you should test to verify the functionality matches your expectations across browsers you need to support.  For instance the Flash Canvas home page advertises 70% support of HTML5 Canvas spec tests.

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• How to handle multi-processing of libraries which already spawn sub-processes?

  - by exhuma

  I am having some trouble coming up with a good solution to limit sub-processes in a script which uses a multi-processed library and the script itself is also multi-processed. Both, the library and script are modifiable by us. I believe the question is more about design than actual code, but for what it's worth, it's written in Python. The goal of the library is to hide implementation details of various internet routers. For that reason, the library has a "Proxy" factory method which takes the IP of a router as parameter. The factory then probes the device using a set of possible proxies. Usually, there is one proxy which immediately knows that is is able to send commands to this device. All others usually take some time to return (given a timeout). One thought was already to simply query the device for an identifier, and then select the proper proxy using that, but in order to do so, you would already need to know how to query the device. Abstracting this knowledge is one of the main purposes of the library, so that becomes a little bit of a "circular-requirement"/deadlock: To connect to a device, you need to know what proxy to use, and to know what proxy to create, you need to connect to a device. So probing the device is - as we can see - the best solution so far, apart from keeping a lookup-table somewhere. The library currently kills all remaining processes once a valid proxy has been found. And yes, there is always only one good proxy per device. Currently there are about 12 proxies. So if one create a proxy instance using the factory, 12 sub-processes are spawned. So far, this has been really useful and worked very well. But recently someone else wanted to use this library to "broadcast" a command to all devices. So he took the library, and wrote his own multi-processed script. This obviously spawned 12 * n processes where n is the number of IPs to which he broadcasted. This has given us two problems: The host on which the command was executed slowed down to a near halt. Aborting the script with CTRL+C ground the system to a total halt. Not even the hardware console responded anymore! This may be due to some Python strangeness which still needs to be investigated. Maybe related to http://bugs.python.org/issue8296 The big underlying question, is how to design a library which does multi-processing, so other applications which use this library and want to be multi-processed themselves do not run into system limitations. My first thought was to require a pool to be passed to the library, and execute all tasks in that pool. In that way, the person using the library has control over the usage of system resources. But my gut tells me that there must be a better solution. Disclaimer: My experience with multiprocessing is fairly limited. I have implemented a few straightforward which did not require access control to resources. So I have not yet any practical experience with semaphores or mutexes. p.s.: In the future, we may have enough information to do this without the probing. But the database which would contain the proper information is not yet operational. Also, the design about multiprocessing a multiprocessed library intrigues me :)

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• An observation on .NET loops – foreach, for, while, do-while

  It’s very common that .NET programmers use “foreach” loop for iterating through collections. Following is my observation whilst I was testing simple scenario on loops. “for” loop is 30% faster than “foreach” and “while” loop is 50% faster than “foreach”. “do-while” is bit faster than “while”. Someone may feel that how does it make difference if I’m iterating only 1000 times in a loop. This test case is only for simple iteration. According to the "Data structure" concepts, best and worst cases are completely based on the data we provide to the algorithm. so we can not conclude that a "foreach" algorithm is not good. All I want to tell that we need to be little cautious even choosing the loops. Example:- You might want to chose quick sort when you want to sort more numbers. At the same time bubble sort may be effective than quick sort when you want to sort less numbers. Take a simple scenario, a request of a simple web application fetches the data of 10000 (10K) rows and iterating them for some business logic. Think, this application is being accessed by 1000 (1K) people simultaneously. In this simple scenario you are ending up with 10000000 (10Million or 1 Crore) iterations. below is the test scenario with simple console application to test 100 Million records. using System;using System.Collections.Generic;using System.Diagnostics;namespace ConsoleApplication1{ class Program { static void Main(string[] args) { var sw = new Stopwatch(); var numbers = GetSomeNumbers(); sw.Start(); foreach (var item in numbers) { } sw.Stop(); Console.WriteLine( String.Format("\"foreach\" took {0} milliseconds", sw.ElapsedMilliseconds)); sw.Reset(); sw.Start(); for (int i = 0; i < numbers.Count; i++) { } sw.Stop(); Console.WriteLine( String.Format("\"for\" loop took {0} milliseconds", sw.ElapsedMilliseconds)); sw.Reset(); sw.Start(); var it = 0; while (it++ < numbers.Count) { } sw.Stop(); Console.WriteLine( String.Format("\"while\" loop took {0} milliseconds", sw.ElapsedMilliseconds)); sw.Reset(); sw.Start(); var it2 = 0; do { } while (it2++ < numbers.Count); sw.Stop(); Console.WriteLine( String.Format("\"do-while\" loop took {0} milliseconds", sw.ElapsedMilliseconds)); } #region Get me 10Crore (100 Million) numbers private static List<int> GetSomeNumbers() { var lstNumbers = new List<int>(); var count = 100000000; for (var i = 1; i <= count; i++) { lstNumbers.Add(i); } return lstNumbers; } #endregion Get me some numbers }} In above example, I was just iterating through 100 Million numbers. You can see the time to execute various  loops provided in .NET Output "foreach" took 1108 milliseconds "for" loop took 727 milliseconds "while" loop took 596 milliseconds "do-while" loop took 594 milliseconds   Press any key to continue . . . So I feel we need to be careful while choosing the looping strategy. Please comment your thoughts. span.fullpost {display:none;}

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• Android Game Development. Async Task. Loading Bitmap Images Sounds

  - by user2534694

  Im working on this game for android. And wanted to know if my thread architecture was right or wrong. Basically, what is happening is, i am loading All the bitmaps,sounds etc in the initializevariables() method. But sometimes the game crashes and sometimes it doesnt. So i decided to use async task. But that doesnt seem to work either (i too loads at times and crashes at times) @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setFullScreen(); initializeVariables(); new initVariables().execute(); // setContentView(ourV); } private void setFullScreen() { requestWindowFeature(Window.FEATURE_NO_TITLE); getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN, WindowManager.LayoutParams.FLAG_FULLSCREEN); getWindow().setFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON, WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON ); } private void initializeVariables() { ourV=new OurView(this); stats = getSharedPreferences(filename, 0); ballPic = BitmapFactory.decodeResource(getResources(), R.drawable.ball5); platform = BitmapFactory.decodeResource(getResources(), R.drawable.platform3); gameB = BitmapFactory.decodeResource(getResources(), R.drawable.game_back2); waves = BitmapFactory.decodeResource(getResources(), R.drawable.waves); play = BitmapFactory.decodeResource(getResources(), R.drawable.play_icon); pause = BitmapFactory.decodeResource(getResources(), R.drawable.pause_icon); platform2 = BitmapFactory.decodeResource(getResources(), R.drawable.platform4); countdown = BitmapFactory.decodeResource(getResources(), R.drawable.countdown); bubbles = BitmapFactory.decodeResource(getResources(), R.drawable.waves_bubbles); backgroundMusic = MediaPlayer.create(this, R.raw.music); jump = MediaPlayer.create(this, R.raw.jump); click = MediaPlayer.create(this, R.raw.jump_crack); sm = (SensorManager) getSystemService(SENSOR_SERVICE); acc = sm.getDefaultSensor(Sensor.TYPE_ACCELEROMETER); sm.registerListener(this, acc, SensorManager.SENSOR_DELAY_GAME); ourV.setOnTouchListener(this); dialog = new Dialog(this,android.R.style.Theme_Translucent_NoTitleBar_Fullscreen); dialog.setContentView(R.layout.pausescreen); dialog.hide(); dialog.setOnDismissListener(this); resume = (Button) dialog.findViewById(R.id.bContinue); menu = (Button) dialog.findViewById(R.id.bMainMenu); newTry = (Button) dialog.findViewById(R.id.bNewTry); tv_time = (TextView) dialog.findViewById(R.id.tv_time); tv_day = (TextView) dialog.findViewById(R.id.tv_day); tv_date = (TextView) dialog.findViewById(R.id.tv_date); resume.setOnClickListener(this); menu.setOnClickListener(this); newTry.setOnClickListener(this); } @Override protected void onResume() { //if its running the first time it goes in the brackets if(firstStart) { ourV.onResume(); firstStart=false; } } Now what onResume in ourV does is , its responsible for starting the thread //this is ourV.onResume public void onResume() { t=new Thread(this); isRunning=true; t.start(); } Now what I want is to initialise all bitmaps sounds etc in the async background method public class initVariables extends AsyncTask<Void, Integer, Void> { ProgressDialog pd; @Override protected void onPreExecute() { pd = new ProgressDialog(GameActivity.this); pd.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL); pd.setMax(100); pd.show(); } @Override protected Void doInBackground(Void... arg0) { synchronized (this) { for(int i=0;i<20;i++) { publishProgress(5); try { Thread.sleep(89); } catch (InterruptedException e) { // TODO Auto-generated catch block e.printStackTrace(); } } } return null; } @Override protected void onProgressUpdate(Integer... values) { pd.incrementProgressBy(values[0]); } @Override protected void onPostExecute(Void result) { pd.dismiss(); setContentView(ourV); } } Now since I am new to this. You could tellme maybe if async is not required for such stuff and there is another way of doing it normally.

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• Using 3rd Party JavaScript Plugins Hardwired With &lsquo;document.write&rsquo;

  - by ToStringTheory

  Introduction Have you ever had the need to implement a 3rd party JavaScript plugin, but your needs didn’t fit the model and usage defined by the API or documentation of the plugin?  Recently I ran into this issue when I was trying to implement a web snapshot plugin into our site.  To use their plugin, you had to include a script tag to the plugin on their server with an API key.  The second part of the usage was to include a <script> tag around a function call wherever you wanted a snapshot to appear. The Problem When trying to use the service, the images did not display.  I checked a couple of things and didn’t find anything wrong at first..  It wasn’t until I looked at the function that was called by the inline script did I find the issue – a call to the webservice, followed by a call to ‘document.write’ in its callback.  The solution in which I was trying to implement the plugin happened to be in response to an AJAX call after the document had completely loaded.  After the page has loaded, document.write does nothing. My first thought for a solution was to just cache the script from the service, and edit it do something like a return function or callback that I could use to edit the document from.  However, I quickly discovered that there is no way to cache the script from the service, as it had a hash in the function where it would call the server.  The hash was updated every few seconds/minutes, expiring old hashes.  This meant that I wouldn’t be able to edit the script and upload a new version to my server, as the script would not work after a few minutes from originally getting the script from the service. Solution The solution eluded me until I realized that this was JavaScript I was dealing with.  A language designed so that you could do just about anything to any library, function, or object…  At this point, the solution was simple – take control of the document.write function.  Using a buffer variable, and a simple function call, it is eerily simple to perform: //what would have been output to the document var buffer = ""; //store a reference to the real document.write var dw = document.write; //redefine document.write to store to our buffer document.write = function (str) {buffer += str;} //execute the function containing calls to document.write eval('{function encapsulated in <script></script> tags}'); //restore the original document.write function (just in case) document.write = dw; That’s it.  Instead of using the script tags where I wanted to include a snapshot, I called a function passing in the URL to the page I wanted a snapshot of.  After that last line of code, what would have been output to the document (or not in the case of the ajax call) was instead stored in buffer. Conclusion While the solution itself is simple, coming from a background much more footed in the .Net platform, I believe that this is a prime example of always keeping the language that you are working in in mind.  While this may seem obvious at first, as I KNEW I was in JavaScript, I never thought of taking control of the document.write function because I am more accustomed to the .Net world.  I can’t simply replace the functionality of Console.WriteLine.

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• Searching for context in Silverlight applications

  - by PeterTweed

  A common behavior in business applications that have developed through the ages is for a user to be able to get information or execute commands in relation to some information/function displayed by right clicking the object in question and popping up a context menu that offers relevant options to choose. The Silverlight Toolkit April 2010 release introduced the context menu object.  This can be added to other UI objects and display options for the user to choose.  The menu items can be enabled or disabled as per your application logic and icons can be added to the menu items to add visual effect.  This post will walk you through how to use the context menu object from the Silverlight Toolkit. Steps: 1. Create a new Silverlight 4 application 2. Copy the following namespace definition to the user control object of the MainPage.xaml file: xmlns:my="clr-namespace:System.Windows.Controls;assembly=System.Windows.Controls.Input.Toolkit"   3. Copy the following XAML into the LayoutRoot grid in MainPage.xaml:          <Border CornerRadius="15" Background="Blue" Width="400" Height="100">             <TextBlock Foreground="White" FontSize="20" Text="Context Menu In This Border...." HorizontalAlignment="Center" VerticalAlignment="Center" >             </TextBlock>             <my:ContextMenuService.ContextMenu>                 <my:ContextMenu >                     <my:MenuItem                 Header="Copy"                 Click="CopyMenuItem_Click" Name="copyMenuItem">                         <my:MenuItem.Icon>                             <Image Source="copy-icon-small.png"/>                         </my:MenuItem.Icon>                     </my:MenuItem>                     <my:Separator/>                     <my:MenuItem Name="pasteMenuItem"                 Header="Paste"                 Click="PasteMenuItem_Click">                         <my:MenuItem.Icon>                             <Image Source="paste-icon-small.png"/>                         </my:MenuItem.Icon>                     </my:MenuItem>                 </my:ContextMenu>             </my:ContextMenuService.ContextMenu>         </Border>   The above code associates a context menu with two menu items and a separator between them to the border object.  The menu items has icons associated with them to add visual appeal.  The menu items have click event handlers that will be added in the MainPage.xaml.cs code behind in a later step. 4. Add two icon sized images to the ClientBin directory of the web project hosting the Silverlight application, named copy-icon-small.png and paste-icon-small.jpg respectively.  I used copy and paste icons as the names suggest. 5. Add the following code to the class in MainPage.xaml.cs file:         private void CopyMenuItem_Click(object sender, RoutedEventArgs e)         {             MessageBox.Show("Copy selected");         }           private void PasteMenuItem_Click(object sender, RoutedEventArgs e)         {             MessageBox.Show("Paste selected");         }   This code adds the event handlers for the menu items defined in step 3. 6. Run the application, right click on the border and select a menu option and see the appropriate message box displayed. Congratulations it’s that easy!   Take the Slalom Challenge at www.slalomchallenge.com!

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• Why I lose certain values from array?

  - by blankon91

  I've the code to input the values dynamically, when I use it to add the values for the first time, it's fine, but when I want to edit it, the old values didn't inserted on sql query but the new values inserted Here is the example: http://i.stack.imgur.com/dwugS.jpg here is the code: ============the function================= sub ShowItemfgEdit(query,selItemName,defValue,num,cdisable) response.write "<select " & cdisable & " num=""" & num & """ id=""itemCombo"" name=""" & selItemName & """ class=""label"" onchange=""varUsage.ChangeSatuanDt(this)"">" if NOT query.BOF then query.moveFirst WHILE NOT query.EOF tulis = "" if trim(defValue) = trim(query("ckdbarang")) then tulis = "selected" end if response.write "<option value=""" & trim(query("ckdbarang")) & """" & tulis & ">" & trim(query("ckdbarang")) & " - " & trim(query("vnamabarang")) query.moveNext WEND end if response.write "</select>" end sub ============calling the function================ <td class="rb" align="left"><% call ShowItemfgEdit(qGetItemfgGrp,"fitem",qGetUsageDt("ckdfg"),countLine,readonlyfg) %></td> ==============post the value====================== <input type="hidden" name="fitem" value=""> ================get the value=================== for i = 1 to request.form("hdnOrderNum") if request.form("selOrdItem_" & i) <> "" then 'bla...blaa...blaa... ckdfg = trim(request.form("fitem_" & i)) '<==here is the problem objCommand.commandText = "INSERT INTO IcTrPakaiDt " &_ "(id, id_h, ckdunitkey, cnopakai, dtglpakai, ckdbarang, ckdgudang, nqty1, nqty2, csatuan1, csatuan2, nqtypakai, csatuanpakai, vketerangan, cJnsPakai, ckdprodkey, ckdfg, ncountstart, ncountstop, ncounttotal) " &_ " VALUES " &_ " (" & idDt & ",'" & idHd & "','" & selLoc & "','" & nopakai & "','" & cDate(request.form("hdnUsageDate")) & "','" & trim(ckdbarang) & "','" & trim(ckdgudang) & "'," & nqty1 & "," & nqty2 & ",'" & trim(csatuan1) & "','" & trim(csatuan2) & "'," & nqtypakai & ",'" & csatuanpakai & "','" & trim(keteranganItem) & "','" & trim(cjnspakai) & "','" & ckdprodkey & "','" &ckdfg& "'," & cnt1 & "," & cnt2 & "," & totalcnt & ")" set qInsertPakaiDt = objCommand.Execute end if next problem: old value of ckdfg didn't inserted to query, but the new value inserted. How to fix this bug?

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• why my code still cannot connect with database? [closed]

  - by Wen Teng

  package com.mems.travis; import java.util.ArrayList; import java.util.List; import org.apache.http.NameValuePair; import org.apache.http.message.BasicNameValuePair; import org.json.JSONObject; import android.app.Activity; import android.app.AlertDialog; import android.content.DialogInterface; import android.content.Intent; import android.os.AsyncTask; import android.os.Bundle; import android.util.Log; import android.view.View; import android.widget.Button; import android.widget.EditText; import android.widget.RadioButton; public class UserRegister extends Activity { JSONParser jsonParser = new JSONParser(); EditText inputName; EditText inputUsername; EditText inputEmail; EditText inputPassword; RadioButton button1; RadioButton button2; Button button3; int success = 0; // url to create new product private static String url_register_user = "http://192.168.1.100/MEMS/add_user.php"; // JSON Node names private static final String TAG_SUCCESS = "success"; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_user_register); // Edit Text inputName = (EditText) findViewById(R.id.nameTextBox); inputUsername = (EditText) findViewById(R.id.usernameTextBox); inputEmail = (EditText) findViewById(R.id.emailTextBox); inputPassword = (EditText) findViewById(R.id.pwTextBox); // Create button //RadioButton button1 = (RadioButton) findViewById(R.id.studButton); // RadioButton button2 = (RadioButton) findViewById(R.id.shopownerButton); Button button3 = (Button) findViewById(R.id.regSubmitButton); // button click event button3.setOnClickListener(new View.OnClickListener() { public void onClick(View view) { String name = inputName.getText().toString(); String username = inputUsername.getText().toString(); String email = inputEmail.getText().toString(); String password = inputPassword.getText().toString(); if (name.contentEquals("")||username.contentEquals("")||email.contentEquals("")||password.contentEquals("")) { AlertDialog.Builder builder = new AlertDialog.Builder(UserRegister.this); // 2. Chain together various setter methods to set the dialog characteristics builder.setMessage(R.string.nullAlert) .setTitle(R.string.alertTitle); builder.setPositiveButton(R.string.ok, new DialogInterface.OnClickListener() { public void onClick(DialogInterface dialog, int id) { // User clicked OK button } }); // 3. Get the AlertDialog from create() AlertDialog dialog = builder.show(); } else { new RegisterNewUser().execute(); } } }); } class RegisterNewUser extends AsyncTask<String, String, String>{ protected String doInBackground(String... args) { String name = inputName.getText().toString(); String username = inputUsername.getText().toString(); String email = inputEmail.getText().toString(); String password = inputPassword.getText().toString(); // Building Parameters List<NameValuePair> params = new ArrayList<NameValuePair>(); params.add(new BasicNameValuePair("name", name)); params.add(new BasicNameValuePair("username", username)); params.add(new BasicNameValuePair("email", email)); params.add(new BasicNameValuePair("password", password)); // getting JSON Object // Note that create product url accepts POST method JSONObject json = jsonParser.makeHttpRequest(url_register_user, "GET", params); // check log cat for response Log.d("Send Notification", json.toString()); try { int success = json.getInt(TAG_SUCCESS); if (success == 1) { // successfully created product Intent i = new Intent(getApplicationContext(), StudentLogin.class); startActivity(i); finish(); } else { // failed to register } } catch (Exception e) { e.printStackTrace(); } return null; } } }

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• android client not working [migrated]

  - by Syeda Zunairah

  i have a java client and c# server the server code is static Socket listeningSocket; static Socket socket; static Thread thrReadRequest; static int iPort = 4444; static int iConnectionQueue = 100; static void Main(string[] args) { Console.WriteLine(IPAddress.Parse(getLocalIPAddress()).ToString()); try { listeningSocket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp); //listeningSocket.Bind(new IPEndPoint(0, iPort)); listeningSocket.Bind(new IPEndPoint(IPAddress.Parse(getLocalIPAddress()), iPort)); listeningSocket.Listen(iConnectionQueue); thrReadRequest = new Thread(new ThreadStart(getRequest)); thrReadRequest.Start(); } catch (Exception e) { Console.WriteLine("Winsock error: " + e.ToString()); //throw; } } static private void getRequest() { int i = 0; while (true) { i++; Console.WriteLine("Outside Try i = {0}", i.ToString()); try { socket = listeningSocket.Accept(); // Receiving //byte[] rcvLenBytes = new byte[4]; //socket.Receive(rcvLenBytes); //int rcvLen = System.BitConverter.ToInt32(rcvLenBytes, 0); //byte[] rcvBytes = new byte[rcvLen]; //socket.Receive(rcvBytes); //String formattedBuffer = System.Text.Encoding.ASCII.GetString(rcvBytes); byte[] buffer = new byte[socket.SendBufferSize]; int iBufferLength = socket.Receive(buffer, 0, buffer.Length, 0); Console.WriteLine("Received {0}", iBufferLength); Array.Resize(ref buffer, iBufferLength); string formattedBuffer = Encoding.ASCII.GetString(buffer); Console.WriteLine("Data received by Client: {0}", formattedBuffer); if (formattedBuffer == "quit") { socket.Close(); listeningSocket.Close(); Environment.Exit(0); } Console.WriteLine("Inside Try i = {0}", i.ToString()); Thread.Sleep(500); } catch (Exception e) { //socket.Close(); Console.WriteLine("Receiving error: " + e.ToString()); Console.ReadKey(); //throw; } finally { socket.Close(); //listeningsocket.close(); } } } static private string getLocalIPAddress() { IPHostEntry host; string localIP = ""; host = Dns.GetHostEntry(Dns.GetHostName()); foreach (IPAddress ip in host.AddressList) { if (ip.AddressFamily == AddressFamily.InterNetwork) { localIP = ip.ToString(); break; } } return localIP; } } and the jave android code is private TCPClient mTcpClient; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); final EditText editText = (EditText) findViewById(R.id.edit_message); Button send = (Button)findViewById(R.id.sendbutton); // connect to the server new connectTask().execute(""); send.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View view) { String message = editText.getText().toString(); //sends the message to the server if (mTcpClient != null) { mTcpClient.sendMessage(message); } editText.setText(""); } }); } @Override public boolean onCreateOptionsMenu(Menu menu) { getMenuInflater().inflate(R.menu.main, menu); return true; } public class connectTask extends AsyncTask<String,String,TCPClient> { @Override protected TCPClient doInBackground(String... message) { mTcpClient = new TCPClient(new TCPClient.OnMessageReceived() { @Override public void messageReceived(String message) { publishProgress(message); } }); mTcpClient.run(); return null; } @Override protected void onProgressUpdate(String... values) { super.onProgressUpdate(values); } } } when i run the server it gives output of try i=1. can any one tell me what to do next

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• Macports: port install jpeg fails

  - by Philipp Keller

  History: installed MacPorts on Leopard upgraded to Snow Leopard uninstall all ports reinstalled XCode sudo port uninstall jpeg sudo port install jpeg DEBUG: Found port in file:///opt/local/var/macports/sources/rsync.macports.org/release/ports/graphics/jpeg DEBUG: Changing to port directory: /opt/local/var/macports/sources/rsync.macports.org/release/ports/graphics/jpeg DEBUG: OS Platform: darwin DEBUG: OS Version: 10.3.0 DEBUG: Mac OS X Version: 10.6 DEBUG: System Arch: i386 DEBUG: setting option os.universal_supported to yes DEBUG: org.macports.load registered provides 'load', a pre-existing procedure. Target override will not be provided DEBUG: org.macports.unload registered provides 'unload', a pre-existing procedure. Target override will not be provided DEBUG: org.macports.distfiles registered provides 'distfiles', a pre-existing procedure. Target override will not be provided DEBUG: adding the default universal variant DEBUG: Reading variant descriptions from /opt/local/var/macports/sources/rsync.macports.org/release/ports/_resources/port1.0/variant_descriptions.conf DEBUG: Requested variant darwin is not provided by port jpeg. DEBUG: Requested variant i386 is not provided by port jpeg. DEBUG: Requested variant macosx is not provided by port jpeg. --- Computing dependencies for jpeg DEBUG: Executing org.macports.main (jpeg) DEBUG: Skipping completed org.macports.fetch (jpeg) DEBUG: Skipping completed org.macports.checksum (jpeg) DEBUG: Skipping completed org.macports.extract (jpeg) DEBUG: Skipping completed org.macports.patch (jpeg) --- Configuring jpeg DEBUG: Using compiler 'Mac OS X gcc 4.2' DEBUG: Executing org.macports.configure (jpeg) DEBUG: Environment: CFLAGS='-O2 -arch x86_64' CXXFLAGS='-O2 -arch x86_64' MACOSX_DEPLOYMENT_TARGET='10.6' CXX='/usr/bin/g++-4.2' F90FLAGS='-O2 -m64' LDFLAGS='-arch x86_64' OBJC='/usr/bin/gcc-4.2' FCFLAGS='-O2 -m64' INSTALL='/usr/bin/install -c' OBJCFLAGS='-O2 -arch x86_64' FFLAGS='-O2 -m64' CC='/usr/bin/gcc-4.2' DEBUG: Assembled command: 'cd "/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_ports_graphics_jpeg/work/jpeg-8a" && ./configure --prefix=/opt/local' sh: line 0: cd: /opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_ports_graphics_jpeg/work/jpeg-8a: No such file or directory Error: Target org.macports.configure returned: configure failure: shell command " cd "/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_ports_graphics_jpeg/work/jpeg-8a" && ./configure --prefix=/opt/local " returned error 1 DEBUG: Backtrace: configure failure: shell command " cd "/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_ports_graphics_jpeg/work/jpeg-8a" && ./configure --prefix=/opt/local " returned error 1 while executing "$procedure $targetname" Warning: the following items did not execute (for jpeg): org.macports.activate org.macports.configure org.macports.build org.macports.destroot org.macports.install Error: Status 1 encountered during processing. To report a bug, see http://guide.macports.org/#project.tickets

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• Fatal error 9001 on shared SQL Server 2008

  - by user643192

  I've asked this same question on StackOverflow, but I might actually have a better chance for an answer here so am posting here as well. I know this question has been asked here before, but none of the suggestions have worked for me. I have an ASP.NET MVC (v. 3) website on a shared server. The website was working fine for a few weeks now, until I started getting a Fatal Error 9001 error straight after login. Because this is a shared server, there are only very limited things I can do with the database (and I don't know that much about databases anyway). The help desk insist that there is nothing wrong with their server. I got various suggestions from them: Upgrading to the business plan because I am out of space (first suggestion) Even though the .mdb file is small, the .ldb can grow very quickly. The .ldb file is probably taking up all the space. I have 100MB available, the database size is 16.5MB. Can the .ldb file take up the remaining space? On querying this with the helpdesk, they admitted that my entire db is only 25MB. There is something wrong with my SQL queries and I should check the website. I'm using EF with linq to SQL. Everything was working fine until now... Can there be something that goes wrong in the queries that causes this sort of error? There is nothing wrong to be seen in the db logs, so this error cannot possibly have happened. I should log it next time it happens and contact again. I found some posts suggesting that restoring a DB backup can get rid of the issue. I do not have a recent backup, and can't take a new one because of a fatal error 9001 occurring. Since this is a shared server I have about 0 authority to execute anything against the DB (think CHECKDB, truncating the log, etc.). So I am at my wits end pretty much. What else can I do/try to get my website moving again?

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• Server.CreateObject Fails when calling .Net object from ASP on 64-bit windows in IIS 32-bit mode

  - by DrFredEdison

  I have a server running Windows 2003 64-bit, that runs IIS in 32-bit mode. I have a COM object that was registered using the following command: C:\WINDOWS\microsoft.net\Framework\v2.0.50727>regasm D:\Path\To\MyDll.dll /tlb:MyTLB.tlb /codebase When I create the object via ASP I get: Server object error 'ASP 0177 : 8000ffff' Server.CreateObject Failed /includes/a_URLFilter.asp, line 19 8000ffff When I create the object in a vbs script and use the 32-bit version of cscript (in \Windows\syswow64) it works fine. I've checked permissions on the DLL, and the IUSR has Read/Execute. Even if I add the IUSR to the Administrators group, I get the same error. This is the log from ProcessMonitor filtering for the path of my dll (annotated with my actions): [Stop IIS] 1:56:30.0891918 PM w3wp.exe 4088 CloseFile D:\Path\To\MyDll.dll SUCCESS [Start IIS] [Refresh ASP page that uses DLL] 1:56:42.7825154 PM w3wp.exe 2196 QueryOpen D:\Path\To\MyDll.dll SUCCESS CreationTime: 8/19/2009 1:11:17 PM, LastAccessTime: 8/19/2009 1:30:26 PM, LastWriteTime: 8/18/2009 12:09:33 PM, ChangeTime: 8/19/2009 1:22:02 PM, AllocationSize: 20,480, EndOfFile: 20,480, FileAttributes: A 1:56:42.7825972 PM w3wp.exe 2196 QueryOpen D:\Path\To\MyDll.dll SUCCESS CreationTime: 8/19/2009 1:11:17 PM, LastAccessTime: 8/19/2009 1:30:26 PM, LastWriteTime: 8/18/2009 12:09:33 PM, ChangeTime: 8/19/2009 1:22:02 PM, AllocationSize: 20,480, EndOfFile: 20,480, FileAttributes: A 1:56:42.7826961 PM w3wp.exe 2196 CreateFile D:\Path\To\MyDll.dll SUCCESS Desired Access: Generic Read, Disposition: Open, Options: Synchronous IO Non-Alert, Non-Directory File, Attributes: N, ShareMode: Read, Delete, AllocationSize: n/a, Impersonating: SERVER2\IUSR_SERVER2, OpenResult: Opened 1:56:42.7827194 PM w3wp.exe 2196 CreateFileMapping D:\Path\To\MyDll.dll SUCCESS SyncType: SyncTypeCreateSection, PageProtection: 1:56:42.7827546 PM w3wp.exe 2196 CreateFileMapping D:\Path\To\MyDll.dll SUCCESS SyncType: SyncTypeOther 1:56:42.7829130 PM w3wp.exe 2196 Load Image D:\Path\To\MyDll.dll SUCCESS Image Base: 0x6350000, Image Size: 0x8000 1:56:42.7830590 PM w3wp.exe 2196 Load Image D:\Path\To\MyDll.dll SUCCESS Image Base: 0x6360000, Image Size: 0x8000 1:56:42.7838855 PM w3wp.exe 2196 CreateFile D:\Webspace\SecurityDll\bin SUCCESS Desired Access: Read Data/List Directory, Synchronize, Disposition: Open, Options: Directory, Synchronous IO Non-Alert, Attributes: n/a, ShareMode: Read, Write, Delete, AllocationSize: n/a, Impersonating: SERVER2\IUSR_SERVER2, OpenResult: Opened 1:56:42.7839081 PM w3wp.exe 2196 QueryDirectory D:\Path\To\MyDll.INI NO SUCH FILE Filter: SecurityDll.INI 1:56:42.7839281 PM w3wp.exe 2196 CloseFile D:\Webspace\SecurityDll\bin SUCCESS [Refresh ASP page that uses DLL] [Refresh ASP page that uses DLL] [Refresh ASP page that uses DLL] This dll works fine on other servers, running 32-bit windows. I can't think of anything else that would make this work. Any suggestions? UPDATE The .dll is not in the GAC, it is compiled as 32-bit, and is Strongly signed.

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• Oracle 9i Session Disconnections

  - by mlaverd

  I am in a development environment, and our test Oracle 9i server has been misbehaving for a few days now. What happens is that we have our JDBC connections disconnecting after a few successful connections. We got this box set up by our IT department and handed over to. It is 'our problem', so options like 'ask you DBA' isn't going to help me. :( Our server is set up with 3 plain databases (one is the main dev db, the other is the 'experimental' dev db). We use the Oracle 10 ojdbc14.jar thin JDBC driver (because of some bug in the version 9 of the driver). We're using Hibernate to talk to the DB. The only thing that I can see that changed is that we now have more users connecting to the server. Instead of one developer, we now have 3. With the Hibernate connection pools, I'm thinking that maybe we're hitting some limit? Anyone has any idea what's going on? Here's the stack trace on the client: Caused by: org.hibernate.exception.GenericJDBCException: could not execute query at org.hibernate.exception.SQLStateConverter.handledNonSpecificException(SQLStateConverter.java:126) [hibernate3.jar:na] at org.hibernate.exception.SQLStateConverter.convert(SQLStateConverter.java:114) [hibernate3.jar:na] at org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:66) [hibernate3.jar:na] at org.hibernate.loader.Loader.doList(Loader.java:2235) [hibernate3.jar:na] at org.hibernate.loader.Loader.listIgnoreQueryCache(Loader.java:2129) [hibernate3.jar:na] at org.hibernate.loader.Loader.list(Loader.java:2124) [hibernate3.jar:na] at org.hibernate.loader.hql.QueryLoader.list(QueryLoader.java:401) [hibernate3.jar:na] at org.hibernate.hql.ast.QueryTranslatorImpl.list(QueryTranslatorImpl.java:363) [hibernate3.jar:na] at org.hibernate.engine.query.HQLQueryPlan.performList(HQLQueryPlan.java:196) [hibernate3.jar:na] at org.hibernate.impl.SessionImpl.list(SessionImpl.java:1149) [hibernate3.jar:na] at org.hibernate.impl.QueryImpl.list(QueryImpl.java:102) [hibernate3.jar:na] ... Caused by: java.sql.SQLException: Io exception: Connection reset at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:112) [ojdbc14.jar:Oracle JDBC Driver version - "10.2.0.4.0"] at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:146) [ojdbc14.jar:Oracle JDBC Driver version - "10.2.0.4.0"] at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:255) [ojdbc14.jar:Oracle JDBC Driver version - "10.2.0.4.0"] at oracle.jdbc.driver.T4CPreparedStatement.executeForDescribe(T4CPreparedStatement.java:829) [ojdbc14.jar:Oracle JDBC Driver version - "10.2.0.4.0"] at oracle.jdbc.driver.OracleStatement.executeMaybeDescribe(OracleStatement.java:1049) [ojdbc14.jar:Oracle JDBC Driver version - "10.2.0.4.0"] at oracle.jdbc.driver.T4CPreparedStatement.executeMaybeDescribe(T4CPreparedStatement.java:854) [ojdbc14.jar:Oracle JDBC Driver version - "10.2.0.4.0"] at oracle.jdbc.driver.OracleStatement.doExecuteWithTimeout(OracleStatement.java:1154) [ojdbc14.jar:Oracle JDBC Driver version - "10.2.0.4.0"] at oracle.jdbc.driver.OraclePreparedStatement.executeInternal(OraclePreparedStatement.java:3370) [ojdbc14.jar:Oracle JDBC Driver version - "10.2.0.4.0"] at oracle.jdbc.driver.OraclePreparedStatement.executeQuery(OraclePreparedStatement.java:3415) [ojdbc14.jar:Oracle JDBC Driver version - "10.2.0.4.0"] at org.hibernate.jdbc.AbstractBatcher.getResultSet(AbstractBatcher.java:208) [hibernate3.jar:na] at org.hibernate.loader.Loader.getResultSet(Loader.java:1812) [hibernate3.jar:na] at org.hibernate.loader.Loader.doQuery(Loader.java:697) [hibernate3.jar:na] at org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:259) [hibernate3.jar:na] at org.hibernate.loader.Loader.doList(Loader.java:2232) [hibernate3.jar:na]

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• Installing OpenLDAP on Fedora 12: ldap_bind: Invalid credentials (49)

  - by Arcturus

  Hello. I've been trying to set up the OpenLDAP installed by default on Fedora 12, very unsuccessfully. My ultimate goal is to use LDAP authentication for user login and Apache, using the OpenLDAP server running on the same machine. The server is running, but the error I always get when I try to use ldapsearch or ldapadd is: ldap_bind: Invalid credentials (49) I've been following these tutorials, but none of them helped me: http://www.howtoforge.com/openldap_fedora7 http://www.redhat.com/docs/manuals/linux/RHL-9-Manual/ref-guide/s1-ldap-quickstart.html http://www.howtoforge.com/linux_ldap_authentication http://docs.fedoraproject.org/deployment-guide/f12/en-US/html/s1-ldap-pam.html http://www.openldap.org/doc/admin24/quickstart.html First, some components were already installed, and I installed these with yum: yum install openldap-servers openldap-devel Then, I created a basic slapd.conf file in /etc/openldap: database bdb suffix "dc=sniejana-sandbox,dc=com" rootdn "cn=root,dc=sniejana-sandbox,dc=com" rootpw {SSHA}cxdz55ygPu4T3ykg7dgu+L0VRvsFSeom directory /var/lib/ldap/sniejana-sandbox.com I obtained the rootpw with this command: slappasswd -s changeme I also created the /var/lib/ldap/sniejana-sandbox.com directory and made sure the entire contents of /var/lib/ldap were owned by the ldap user. I found two ldap.conf files, one in /etc and one in /etc/openldap. I don't know which is the right one. If I understood correctly, this file is to configure the client. I put this in both: HOST localhost BASE dc=sniejana-sandbox,dc=com I then ran the server with: service slapd start It said OK. Most of the tutorials above say to use the command ldapsearch -D "cn=Manager,dc=my-domain,dc=com" -W to ensure that everything's working. When I execute this command, a password prompt appears, and after entering the password, I get the error. ldapsearch -D "cn=root,dc=sniejana-sandbox,dc=com" -W Enter LDAP password: ldap_bind: Invalid credentials (49) The same thing happens when trying to use ldapadd. I tried with an encrypted and unencrypted password in slapd.conf, it doesn't change anything. Adding a -x for simple authentication doesn't change anything either. netstat -ap confirms the server is listening: tcp 0 0 *:ldap *:* LISTEN 4148/slapd tcp 0 0 *:ldap *:* LISTEN 4148/slapd ps -ef|grep slapd confirms the process is running: ldap 4148 1 0 15:22 ? 00:00:00 /usr/sbin/slapd -h ldap:/// -u ldap Running slaptest procudes config file testing succeeded. I read somewhere that the command ldapsearch -x -b '' -s base '(objectclass=*)' namingContext can confirm the server is running. It appears to work: # extended LDIF # # LDAPv3 # base <> with scope baseObject # filter: (objectclass=*) # requesting: namingContext # # dn: # search result search: 2 result: 0 Success # numResponses: 2 # numEntries: 1 I'm running out of ideas. Am I missing something obvious?

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• Apache2 cgi's crash on odbc db access (but run fine from shell)

  - by Martin

  Problem overview (details below): I'm having an apache2 + ruby integration problem when trying to connect to an ODBC data source. The main problem boils down to the fact that scripts that run fine from an interactive shell crash ruby on the database connect line when run as a cgi from apache2. Ruby cgi's that don't try to access the ODBC datasource work fine. And (again) ruby scripts that connect to a database with ODBC do fine when executed from the command line (or cron). This behavior is identical when I use perl instead of ruby. So, the issue seems to be with the environment provided for ruby (perl) by apache2, but I can't figure out what is wrong or what to do about it. Does anyone have any suggestions on how to get these cgi scripts to work properly? I've tried many different things to get this to work, and I'm happy to provide more detail of any aspect if that will help. Details: Mac OS X Server 10.5.8 Xserve 2 x 2.66 Dual-Core Intel Xeon (12 GB) Apache 2.2.13 ruby 1.8.6 (2008-08-11 patchlevel 287) [universal-darwin9.0] ruby-odbc 0.9997 dbd-odbc (0.2.5) dbi (0.4.3) mod_ruby 1.3.0 Perl -- 5.8.8 DBI -- 1.609 DBD::ODBC -- 1.23 odbc driver: DataDirect SequeLink v5.5 (/Library/ODBC/SequeLink.bundle/Contents/MacOS/ivslk20.dylib) odbc datasource: FileMaker Server 10 (v10.0.2.206) ) a minimal version of a script (anonymized) that will crash in apache but run successfully from a shell: #!/usr/bin/ruby require 'cgi' require 'odbc' cgi = CGI.new("html3") aConnection = ODBC::connect('DBFile', "username", 'password') aQuery = aConnection.prepare("SELECT zzz_kP_ID FROM DBTable WHERE zzz_kP_ID = 81044") aQuery.execute aRecord = aQuery.fetch_hash.inspect aQuery.drop aConnection.disconnect # aRecord = '{"zzz_kP_ID"=>81044.0}' cgi.out{ cgi.html{ cgi.body{ "<pre>Primary Key: #{aRecord}</pre>" } } } Example of running this from a shell: gamma% ./minimal.rb (offline mode: enter name=value pairs on standard input) Content-Type: text/html Content-Length: 134 <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2 Final//EN"><HTML><BODY><pre>Primary Key: {"zzz_kP_ID"=>81044.0}</pre></font></BODY></HTML>% gamma% ) typical crash log lines: Dec 22 14:02:38 gamma ReportCrash[79237]: Formulating crash report for process perl[79236] Dec 22 14:02:38 gamma ReportCrash[79237]: Saved crashreport to /Library/Logs/CrashReporter/perl_2009-12-22-140237_HTCF.crash using uid: 0 gid: 0, euid: 0 egid: 0 Dec 22 14:03:13 gamma ReportCrash[79256]: Formulating crash report for process perl[79253] Dec 22 14:03:13 gamma ReportCrash[79256]: Saved crashreport to /Library/Logs/CrashReporter/perl_2009-12-22-140311_HTCF.crash using uid: 0 gid: 0, euid: 0 egid: 0

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• Why I am getting "Problem loading the page" after enabling HTTPS for Apache on Windows 7?

  - by Anish

  I enabled HTTPS on the Apache server (2.2.15) Windows 7 Enterprise by uncommenting: Include /private/etc/apache2/extra/httpd-ssl.conf in C:\Program Files (x86)\Apache Software Foundation\Apache2.2\conf\httpd.conf and modifying C:\Program Files (x86)\Apache Software Foundation\Apache2.2\conf\httpd-ssl.conf to include: DocumentRoot "C:/Program Files (x86)/Apache Software Foundation/Apache2.2/htdocs" ServerName myserver.com:443 ServerAdmin [email protected] ... SSLCertificateFile "SSLCertificateFile "C:/Program Files (x86)/Apache Software Foundation/Apache2.2/conf/cert.pem SSLCertificateKeyFile "SSLCertificateFile "C:/Program Files (x86)/Apache Software Foundation/Apache2.2/conf/key.pem" Then I restart apache (going to start-All Progranms-Apache Server 2.2-Control-restart) and go to localhost on port 443 in Firefox , where I get: <<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2 Final//EN"> <html> <head> <title>Index of /</title> </head> <body> <h1>Index of /</h1> <ul><li><a href="MyPageLinks/"> Links/</a></li> ..... .... </ul> </body></html> But on Display of WebPage I see: Unable to connect Firefox can't establish a connection to the server at localhost. *The site could be temporarily unavailable or too busy. Try again in a few moments. *If you are unable to load any pages, check your computer's network onnection. *If your computer or network is protected by a firewall or proxy, make sure that Firefox is permitted to access the Web. I read: Why am I getting 403 Forbidden after enabling HTTPS for Apache on Mac OS X? and added default web server configuration block to match my DocumentRoot The error Log C:\Program Files (x86)\Apache Software Foundation\Apache2.2\logs\error.log gives following error: The Apache2.2 service is running. (OS 5)Access is denied. : Init: Can't open server certificate file C:/Program Files (x86)/Apache Software Foundation/Apache2.2/conf/cert.pem I checked the permissions for cert.pem and it indicates: All the permissions (Full control, Read, Read and modify, execute, Write) are marked for Admin and I am currently logged in as Admin. I tried using oldcert.pem and oldkey.pem on the same server and it works fine. Is there anything that I missed?

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• Data loss through permissions change?

  - by charliehorse55

  I seem to have deleted some files on my media drive, simply by changing the permissions. The Story I have many operating systems installed on my computer, and constantly switch between them. I bought a 1TB HD and formatted it as HFS+ (not journaled). It worked well between OSX and all of my linux installations while having much better metadata support than NTFS. I never synced the UIDs for my operating systems so the permissions were always doing funny things. Yesterday I tried to fix the permissions by first changing the UIDs of the other operating systems to match OSX, and then changing the file ownership of all files on the drive to match OSX. About 50% of the files on the drive were originally owned by OSX, the other half were owned by the various linux installations. I started to try and change the file permissions for the folders, and that's when it went south. The Commands These commands were run recursively on the one section of the drive. sudo chflags nouchg sudo chflags -N sudo chown myusername sudo chmod 666 sudo chgrp staff The Bad Sometime during the execution of these commands, all of the files belonging to OSX were deleted. If a folder had linux based files it would remain intact but any folder containing exclusively OSX files was erased. If a folder containing linux files also contained a subfolder with only OSX files, the sub folder would remain but is inaccesible and displays a file size of 0 bytes. Luckily these commands were only run on the videos folder, I also have a music folder with the same issue but I did not execute any of these commands on it. Effectively I have examples of the file permissions for all 3 states - the linux files before and after, and the OSX files before. OSX File Before -rw-r--r--@ 1 charliehorse 1000 3634241 15 Nov 2008 /path/to/file com.apple.FinderInfo 32 Linux File before: -rw-r--r--@ 1 charliehorse 1000 5321776 20 Sep 2002 /path/to/file/ com.apple.FinderInfo 32 Linux File After (Read only): (Different file, but I believe the same permissions originally) -rw-rw-rw-@ 1 charliehorse staff 366982610 17 Jun 2008 /path/to/file com.apple.FinderInfo 32 These files still exist so if there are any other commands to run on them to determine what has happened here, I can do that. EDIT Running ls on one of the "empty" deleted OSX folders yields this: ls: .: Permission denied ls: ..: Permission denied ls: subdirA: Permission denied ls: subdirB: Permission denied ls: subdirC: Permission denied ls: subdirD: Permission denied I believe my files might still be there, but the permissions are screwed.

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• W2k8, Sybase Driver, Permissions

  - by Clustermagnet

  Trying to get a .net (32bit) app running on a Windows 2008 server. My experience in the Windows world is quite limited. Is this related to the Full/Medium trust settings? Have been Googling for quite some time. Appreciate your feedback! Seeing the following error: Required permissions cannot be acquired. Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code. Exception Details: System.Security.Policy.PolicyException: Required permissions cannot be acquired. Source Error: An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below. Stack Trace: [PolicyException: Required permissions cannot be acquired.] System.Security.SecurityManager.ResolvePolicy(Evidence evidence, PermissionSet reqdPset, PermissionSet optPset, PermissionSet denyPset, PermissionSet& denied, Boolean checkExecutionPermission) +7606467 System.Security.SecurityManager.ResolvePolicy(Evidence evidence, PermissionSet reqdPset, PermissionSet optPset, PermissionSet denyPset, PermissionSet& denied, Int32& securitySpecialFlags, Boolean checkExecutionPermission) +57 [FileLoadException: Could not load file or assembly 'Sybase.Data.AseClient, Version=1.155.1000.0, Culture=neutral, PublicKeyToken=26e0f1529304f4a7' or one of its dependencies. Failed to grant minimum permission requests. (Exception from HRESULT: 0x80131417)] System.Reflection.Assembly._nLoad(AssemblyName fileName, String codeBase, Evidence assemblySecurity, Assembly locationHint, StackCrawlMark& stackMark, Boolean throwOnFileNotFound, Boolean forIntrospection) +0 System.Reflection.Assembly.nLoad(AssemblyName fileName, String codeBase, Evidence assemblySecurity, Assembly locationHint, StackCrawlMark& stackMark, Boolean throwOnFileNotFound, Boolean forIntrospection) +43 System.Reflection.Assembly.InternalLoad(AssemblyName assemblyRef, Evidence assemblySecurity, StackCrawlMark& stackMark, Boolean forIntrospection) +127 System.Reflection.Assembly.InternalLoad(String assemblyString, Evidence assemblySecurity, StackCrawlMark& stackMark, Boolean forIntrospection) +142 System.Reflection.Assembly.Load(String assemblyString) +28 System.Web.Configuration.CompilationSection.LoadAssemblyHelper(String assemblyName, Boolean starDirective) +46 [ConfigurationErrorsException: Could not load file or assembly 'Sybase.Data.AseClient, Version=1.155.1000.0, Culture=neutral, PublicKeyToken=26e0f1529304f4a7' or one of its dependencies. Failed to grant minimum permission requests. (Exception from HRESULT: 0x80131417)] System.Web.Configuration.CompilationSection.LoadAssemblyHelper(String assemblyName, Boolean starDirective) +613 System.Web.Configuration.CompilationSection.LoadAllAssembliesFromAppDomainBinDirectory() +203 System.Web.Configuration.CompilationSection.LoadAssembly(AssemblyInfo ai) +105 System.Web.Compilation.BuildManager.GetReferencedAssemblies(CompilationSection compConfig) +178 System.Web.Compilation.WebDirectoryBatchCompiler..ctor(VirtualDirectory vdir) +163 System.Web.Compilation.BuildManager.BatchCompileWebDirectoryInternal(VirtualDirectory vdir, Boolean ignoreErrors) +53 System.Web.Compilation.BuildManager.BatchCompileWebDirectory(VirtualDirectory vdir, VirtualPath virtualDir, Boolean ignoreErrors) +175 System.Web.Compilation.BuildManager.CompileWebFile(VirtualPath virtualPath) +86 System.Web.Compilation.BuildManager.GetVPathBuildResultInternal(VirtualPath virtualPath, Boolean noBuild, Boolean allowCrossApp, Boolean allowBuildInPrecompile) +261 System.Web.Compilation.BuildManager.GetVPathBuildResultWithNoAssert(HttpContext context, VirtualPath virtualPath, Boolean noBuild, Boolean allowCrossApp, Boolean allowBuildInPrecompile) +101 System.Web.Compilation.BuildManager.GetVirtualPathObjectFactory(VirtualPath virtualPath, HttpContext context, Boolean allowCrossApp, Boolean noAssert) +126 System.Web.Compilation.BuildManager.CreateInstanceFromVirtualPath(VirtualPath virtualPath, Type requiredBaseType, HttpContext context, Boolean allowCrossApp, Boolean noAssert) +62 System.Web.UI.PageHandlerFactory.GetHandlerHelper(HttpContext context, String requestType, VirtualPath virtualPath, String physicalPath) +33 System.Web.UI.PageHandlerFactory.GetHandler(HttpContext context, String requestType, String virtualPath, String path) +37 System.Web.MaterializeHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +307 System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +155 Version Information: Microsoft .NET Framework Version:2.0.50727.4959; ASP.NET Version:2.0.50727.4955

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• PHP 5.3.2 + Fcgid 2.3.5 + Apache 2.2.14 + SuExec => Connection reset by peer: mod_fcgid: error reading data from FastCGI server

  - by Zigzag

  I'm trying to use PHP 5.3.2 + Fcgid 2.3.5 + Apache 2.2.14 but I always have the error : "Connection reset by peer: mod_fcgid: error reading data from FastCGI server". And Apache returns an error 500 each time I tried to execute a php page : I have compiled the Apache with this options: ./configure --with-mpm=worker --enable-userdir=shared --enable-actions=shared --enable-alias=shared --enable-auth=shared --enable-so --enable-deflate \ --enable-cache=shared --enable-disk-cache=shared --enable-info=shared --enable-rewrite=shared \ --enable-suexec=shared --with-suexec-caller=www-data --with-suexec-userdir=site --with-suexec-logfile=/usr/local/apache2/logs/suexec.log --with-suexec-docroot=/home Then PHP: ./configure --with-config-file-path=/usr/local/apache2/php --with-apxs2=/usr/local/apache2/bin/apxs --with-mysql --with-zlib --enable-exif --with-gd --enable-cgi Then FCdigd: APXS=/usr/local/apache2/bin/apxs ./configure.apxs The VHOST is: <Directory /home/website_panel/site/> FCGIWrapper /home/website_panel/cgi/php .php ... ErrorLog /home/website_panel/logs/error.log </Directory> cat /home/website_panel/logs/error.log [Sun Mar 07 22:19:41 2010] [warn] [client xx.xx.xx.xx] (104)Connection reset by peer: mod_fcgid: error reading data from FastCGI server [Sun Mar 07 22:19:41 2010] [error] [client xx.xx.xx.xx] Premature end of script headers: test.php [Sun Mar 07 22:19:41 2010] [warn] [client xx.xx.xx.xx] (104)Connection reset by peer: mod_fcgid: error reading data from FastCGI server [Sun Mar 07 22:19:41 2010] [error] [client xx.xx.xx.xx] Premature end of script headers: test.php [Sun Mar 07 22:19:42 2010] [warn] [client xx.xx.xx.xx] (104)Connection reset by peer: mod_fcgid: error reading data from FastCGI server [Sun Mar 07 22:19:42 2010] [error] [client xx.xx.xx.xx] Premature end of script headers: test.php [Sun Mar 07 22:19:43 2010] [warn] [client xx.xx.xx.xx] (104)Connection reset by peer: mod_fcgid: error reading data from FastCGI server [Sun Mar 07 22:19:43 2010] [error] [client xx.xx.xx.xx] Premature end of script headers: test.php The Suexec log: root:/usr/local/apache2# cat /var/log/apache2/suexec.log [2010-03-07 22:11:05]: uid: (1001/website_panel) gid: (1001/website_panel) cmd: php [2010-03-07 22:11:15]: uid: (1001/website_panel) gid: (1001/website_panel) cmd: php [2010-03-07 22:11:23]: uid: (1001/website_panel) gid: (1001/website_panel) cmd: php [2010-03-07 22:19:41]: uid: (1001/website_panel) gid: (1001/website_panel) cmd: php [2010-03-07 22:19:41]: uid: (1001/website_panel) gid: (1001/website_panel) cmd: php [2010-03-07 22:19:42]: uid: (1001/website_panel) gid: (1001/website_panel) cmd: php [2010-03-07 22:19:43]: uid: (1001/website_panel) gid: (1001/website_panel) cmd: php root:/usr/local/apache2# cat logs/error_log [Sun Mar 07 22:18:47 2010] [notice] suEXEC mechanism enabled (wrapper: /usr/local/apache2/bin/suexec) [Sun Mar 07 22:18:47 2010] [notice] mod_bw : Memory Allocated 0 bytes (each conf takes 32 bytes) [Sun Mar 07 22:18:47 2010] [notice] mod_bw : Version 0.7 - Initialized [0 Confs] [Sun Mar 07 22:18:47 2010] [notice] Apache/2.2.14 (Unix) mod_fcgid/2.3.5 configured -- resuming normal operations root:/usr/local/apache2# /home/website_panel/cgi/php -v PHP 5.3.2 (cli) (built: Mar 7 2010 16:01:49) Copyright (c) 1997-2010 The PHP Group Zend Engine v2.3.0, Copyright (c) 1998-2010 Zend Technologies If someone has got an idea, I want to hear it ^^ Thanks !

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• How to shutdown VMware Fusion virtual machine on host shutdown

  - by Nikksno

  I have a Mac mini running Mavericks server. I installed the Atmail server + webmail vm [a linux centos distribution] in VMware Fusion Professional 6 with the VMware Tools addon. It works flawlessly. I've set it to start on boot and that works very reliably. However I've been looking for a way to also safely and gracefully shut it down whenever OS X shuts down for whatever reason. The Mac is connected to a UPS and configured to perform an automatic shutdown in case the battery starts running low so that's no additional problem. Now the first thing I did was to go into Fusion's prefs and select "Power off the vm" when closing it. However I noticed that for some arcane reason closing the vm window would actually forcibly power off the vm: so then I found this post that showed me how to change the default power options and I managed to have the vm cleanly shutdown when closing its window or quitting Fusion altogether. At this point I was hoping to have solved the problem but as it turns out upon invoking system shutdown OS X doesn't wait for the vm to shutdown and terminates Fusion before it has a chance to do so. At this point I started looking for a way to automate the process of shutting down the guest os via some advanced setting but had no luck in doing so. That's when I found a command to shut the vm down: vmrun and it worked. The only thing left was to find out a way to execute this script on os x shutdown and giving it a little time to power off completely. However this turned out to be a nightmare: I spent hours looking through several ways to do this with Startup Items, rc.shutdown, cron, launchd, etc... but none of them worked the way I had configured them. I have to say that I found very limited information on using launchd for a shutdown script execution and I know it's the latest thing in the OS X world so I'm hoping someone out there among you will be able to help me out with this. I still think this is an extremely basic feature to ask for and I was really surprised to find this little documentation on so many different aspects of this problem. Is Fusion too basic of an application for this? I really hope someone can help. Thank you very much in advance.

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• Detecting upload success/failure in a scripted command-line SFTP session?

  - by Will Martin

  I am writing a BASH shell script to upload all the files in a directory to a remote server and then delete them. It'll run every few hours via a CRON job. My complete script is below. The basic problem is that the part that's supposed to figure out whether the file uploaded successfully or not doesn't work. The SFTP command's exit status is always "0" regardless of whether the upload actually succeeded or not. How can I figure out whether a file uploaded correctly or not so that I can know whether to delete it or let it be? #!/bin/bash # First, save the folder path containing the files. FILES=/home/bob/theses/* # Initialize a blank variable to hold messages. MESSAGES="" ERRORS="" # These are for notifications of file totals. COUNT=0 ERRORCOUNT=0 # Loop through the files. for f in $FILES do # Get the base filename BASE=`basename $f` # Build the SFTP command. Note space in folder name. CMD='cd "Destination Folder"\n' CMD="${CMD}put ${f}\nquit\n" # Execute it. echo -e $CMD | sftp -oIdentityFile /home/bob/.ssh/id_rsa [email protected] # On success, make a note, then delete the local copy of the file. if [ $? == "0" ]; then MESSAGES="${MESSAGES}\tNew file: ${BASE}\n" (( COUNT=$COUNT+1 )) # Next line commented out for ease of testing #rm $f fi # On failure, add an error message. if [ $? != "0" ]; then ERRORS="${ERRORS}\tFailed to upload file ${BASE}\n" (( ERRORCOUNT=$ERRORCOUNT+1 )) fi done SUBJECT="New Theses" BODY="There were ${COUNT} files and ${ERRORCOUNT} errors in the latest batch.\n\n" if [ "$MESSAGES" != "" ]; then BODY="${BODY}New files:\n\n${MESSAGES}\n\n" fi if [ "$ERRORS" != "" ]; then BODY="${BODY}Problem files:\n\n${ERRORS}" fi # Send a notification. echo -e $BODY | mail -s $SUBJECT [email protected] Due to some operational considerations that make my head hurt, I cannot use SCP. The remote server is using WinSSHD on windows, and does not have EXEC privileges, so any SCP commands fail with the message "Exec request failed on channel 0". The uploading therefore has to be done via the interactive SFTP command.

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