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  • multi-thread in mmorpg server

    - by jean
    For MMORPG, there is a tick function to update every object's state in a map. The function was triggered by a timer in fixed interval. So each map's update can be dispatch to different thread. At other side, server handle player incoming package have its own threads also: I/O threads. Generally, the handler of the corresponding incoming package run in I/O threads. So there is a problem: thread synchronization. I have consider two methods: Synchronize with mutex. I/O thread lock a mutex before execute handler function and map thread lock same mutex before it execute map's update. Execute all handler functions in map's thread, I/O thread only queue the incoming handler and let map thread to pop the queue then call handler function. These two have a disadvantage: delay. For method 1, if the map's tick function is running, then all clients' request need to waiting the lock release. For method 2, if map's tick function is running, all clients' request need to waiting for next tick to be handle. Of course, there is another method: add lock to functions that use data which will be accessed both in I/O thread & map thread. But this is hard to maintain and easy to goes incorrect. It needs carefully check all variables whether or not accessed by both two kinds thread. My problem is: is there better way to do this? Notice that I said map is logic concept means no interactions can happen between two map except transport. I/O thread means thread in 3rd part network lib which used to handle client request.

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  • Scroll event of jquery is not working in IE 7 with IE 7 standard but works in IE8,9

    - by SidP
    I have an example below which has a terms div which has some terms and conditions as content. When the user scroll the div to bottom, then the checkbox is enabled. This is only not working only in IE 7 with IE 7/8/9 standards (I am changing the standard options from Developer window). Following is my html, css and js: <body> <div id="terms">Lorem ipsum dolor sit amet, consectetur adipiscing elit. Integer lacinia dui vel velit bibendum cursus. Nunc eget lacus vitae nulla euismod elementum ornare ac urna. Nam enim est, bibendum eu ultricies eu, mollis vitae lacus. Duis porta vulputate feugiat. Nullam eu iaculis lacus. Aliquam adipiscing posuere consequat. Donec et dui non massa congue eleifend. Nunc tortor diam, luctus eget mollis sit amet, posuere nec lectus. Morbi sit amet ultricies nisi. Nam sodales quam non mi tristique sollicitudin. Vestibulum vel augue eget mi tincidunt commodo. Sed egestas metus nibh, et vestibulum augue. Lorem ipsum dolor sit amet, consectetur adipiscing elit. Integer lacinia dui vel velit bibendum cursus. Nunc eget lacus vitae nulla euismod elementum ornare ac urna. Nam enim est, bibendum eu ultricies eu, mollis vitae lacus. Duis porta vulputate feugiat. Nullam eu iaculis lacus. Aliquam adipiscing posuere consequat. Donec et dui non massa congue eleifend. Nunc tortor diam, luctus eget mollis sit amet, posuere nec lectus. Morbi sit amet ultricies nisi. Nam sodales quam non mi tristique sollicitudin. Vestibulum vel augue eget mi tincidunt commodo. Sed egestas metus nibh, et vestibulum augue. </div> <input type="checkbox" name="cb1" id="cb1" disabled="true" /> </body> CSS: <style type="text/css"> #terms { height: 100px; overflow: auto; } body{ width:960px; margin: 0 auto; } </style> JS: <script src="jquery-1.8.1.js"></script> <script type="text/javascript">//<![CDATA[ $(window).load(function(){ $('#terms').scroll(function() { if ($(this)[0].scrollHeight - $(this).scrollTop() == $(this).outerHeight()) { $("#cb1").removeAttr("disabled"); } else { $("#cb1").attr("disabled", "true"); } }); });//]]> </script>

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  • Different behavior of reflected generic delegates with and without debugger

    - by Andrew_B
    Hello. We have encountered some strange things while calling reflected generic delegates. In some cases with attatched debuger we can make impossible call, while without debugger we cannot catch any exception and application fastfails. Here is the code: using System; using System.Windows.Forms; using System.Reflection; namespace GenericDelegate { public partial class Form1 : Form { public Form1() { InitializeComponent(); } private delegate Class2 Delegate1(); private void button1_Click(object sender, EventArgs e) { MethodInfo mi = typeof (Class1<>).GetMethod("GetClass", BindingFlags.NonPublic | BindingFlags.Static); if (mi != null) { Delegate1 del = (Delegate1) Delegate.CreateDelegate(typeof (Delegate1), mi); MessageBox.Show("1"); try { del(); } catch (Exception) { MessageBox.Show("No, I can`t catch it"); } MessageBox.Show("2"); mi.Invoke(null, new object[] {});//It's Ok, we'll get exception here MessageBox.Show("3"); } } class Class2 { } class Class1<T> : Class2 { internal static Class2 GetClass() { Type type = typeof(T); MessageBox.Show("Type name " + type.FullName +" Type: " + type + " Assembly " + type.Assembly); return new Class1<T>(); } } } } There are two problems: Behavior differs with debugger and without You cannot catch this error without debugger by clr tricks. It's just not the clr exception. There are memory acces vialation, reading zero pointer inside of internal code. Use case: You develop something like plugins system for your app. You read external assembly, find suitable method in some type, and execute it. And we just forgot about that we need to check up is the type generic or not. Under VS (and .net from 2.0 to 4.0) everything works fine. Called function does not uses static context of generic type and type parameters. But without VS application fails with no sound. We even cannot identify call stack attaching debuger. Tested with .net 4.0 The question is why VS catches but runtime do not?

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  • Invoke target throwing invalid cross-thread operate exception

    - by sqwerty
    MethodInfo mi = typeof(NotifyIcon).GetMethod("ShowContextMenu", BindingFlags.Instance | BindingFlags.NonPublic); mi.Invoke(notify, null); This throws the following exception: {"Exception has been thrown by the target of an invocation."} With the following inner exception: "Cross-thread operation not valid: Control '' accessed from a thread other than the thread it was created on." If I comment out a line of code that sets the images for the context menu entries then it stops throwing the exception. Any ideas?

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  • Scriptaculous Shaking Effect Problem

    - by TheOnly92
    The scriptaculous shaking effect somehow produce some bugs for Webkit browsers, including Chrome and Safari. When shaking, the element will shift to the top left of the screen covering everything. An example code is given as below, are there any ways of solving this? <html> <head> <script type='text/javascript' src='http://ajax.googleapis.com/ajax/libs/prototype/1.6.1/prototype.js'></script> <script type='text/javascript' src='http://ajax.googleapis.com/ajax/libs/scriptaculous/1.8.3/scriptaculous.js'></script> <script type='text/javascript' src='http://ajax.googleapis.com/ajax/libs/scriptaculous/1.8.3/scriptaculous.js?load=effects'></script> </head> <body> <div style="z-index: 20000; position: fixed; display: block; bottom: 10px; right: 10px; background-attachment: scroll; background-color: white;" id="floating_text"> <p>This should be some floating text.</p> <p>Some more floating text.</p> </div> <p>Lorem ipsum dolor sit amet, consectetur adipiscing elit. Integer dui ligula, tempus adipiscing posuere id, sollicitudin sed nulla. Sed neque diam, volutpat non interdum vel, pellentesque vitae lorem. Vivamus et leo risus. Fusce at nunc nulla, non ultricies elit. Aliquam erat volutpat. Aliquam pulvinar mi at purus laoreet eu varius nisl laoreet. Mauris lobortis sapien diam. Maecenas arcu est, ullamcorper fringilla placerat nec, semper ut arcu. Curabitur metus nisl, ornare nec posuere at, tincidunt tempor nisi. Ut ut est risus. Curabitur elit urna, sagittis sagittis cursus quis, accumsan eget nulla. Donec odio ante, rutrum at fermentum vel, tempus gravida odio. Quisque a ante a urna vehicula posuere ac ut orci. Integer luctus sem et justo condimentum consequat. Phasellus pharetra malesuada velit, et commodo arcu imperdiet vitae. Suspendisse vitae risus orci. Maecenas massa tortor, sodales ut luctus ac, lacinia vitae sapien. Vestibulum sit amet rutrum est. Nullam magna erat, semper a volutpat id, porta sed nisl.</p> <p>Praesent nec consectetur sapien. Integer mollis libero a odio pharetra vulputate. Donec mattis consequat arcu, vel ultricies orci imperdiet sit amet. Mauris sit amet tellus libero. Morbi ac venenatis ligula. Cras tellus neque, porttitor sit amet hendrerit nec, ornare quis tellus. Nam iaculis mi at mi bibendum at commodo justo pretium. Ut in nibh non diam hendrerit fermentum a ut odio. Curabitur lorem turpis, tincidunt et rhoncus et, pulvinar a metus. Vestibulum a quam sit amet arcu condimentum cursus vitae feugiat lectus. Sed ut lorem tellus, non sagittis enim. Curabitur lectus eros, commodo a elementum et, molestie eget est. Donec ullamcorper, arcu nec volutpat auctor, sem odio interdum tellus, nec volutpat lacus libero at nisl. Aliquam metus sapien, aliquam a rutrum ac, tincidunt at purus. Donec in erat mi. Quisque semper mauris in massa bibendum sed tincidunt augue facilisis. In tempus lacinia urna ac tristique.</p> <p>Vestibulum ante ipsum primis in faucibus orci luctus et ultrices posuere cubilia Curae; Fusce tristique urna sem. Etiam iaculis aliquam dui nec porta. Proin tristique diam non augue mattis tristique. Phasellus nulla erat, adipiscing sed cursus sed, pulvinar eget nisl. Maecenas blandit nibh eu nisl facilisis et semper turpis posuere. Pellentesque auctor sem in massa sollicitudin congue. Vivamus quis lacinia massa. Aliquam sodales dictum magna, eget ullamcorper eros placerat at. Quisque gravida diam sit amet nunc porta aliquam. Ut quis aliquet est. Maecenas risus tellus, euismod id porttitor at, porta id turpis. Phasellus id molestie ante. Class aptent taciti sociosqu ad litora torquent per conubia nostra, per inceptos himenaeos. Aenean purus nibh, egestas vestibulum aliquet eget, luctus nec eros. Nulla facilisi. Quisque molestie, sem interdum posuere lacinia, nisl purus ornare lectus, id dapibus lacus dolor in ipsum. Aenean pharetra leo nulla.</p> <p>Curabitur nisi quam, iaculis eget pellentesque vel, pretium sed massa. In viverra, tellus at sollicitudin fringilla, orci eros blandit elit, a bibendum mauris dolor ut metus. Vivamus pellentesque suscipit diam, vitae euismod mi pellentesque vitae. Nullam neque libero, vehicula ut iaculis at, tincidunt eget leo. Suspendisse vitae velit justo. Nullam vitae sem tincidunt nulla tincidunt mollis in id massa. Duis rhoncus elementum turpis quis mollis. Vivamus egestas urna in velit commodo iaculis. Aenean quis dolor eu odio porttitor rhoncus nec vel eros. Donec ut est eu nisl vehicula pulvinar et id dolor. Donec a dolor neque. Morbi tempus mattis tortor ut rutrum. Phasellus orci metus, pellentesque vel tincidunt nec, pulvinar eu ante. Duis faucibus felis et diam ullamcorper in feugiat urna dignissim. Quisque nec diam mauris, vel viverra arcu. Cras sagittis dignissim nisl in sagittis. Fusce venenatis rhoncus est, nec elementum libero dapibus eget. Donec eu velit metus. Sed sollicitudin felis a diam condimentum in suscipit neque varius. Nulla nec tortor tristique elit malesuada luctus luctus quis leo.</p> <p>Nullam at quam dui. Ut gravida, tellus malesuada faucibus gravida, purus nulla consequat lorem, pellentesque egestas justo quam et enim. Suspendisse fringilla tellus id odio tristique varius. Cras et metus elit. Etiam interdum adipiscing mollis. Aliquam aliquet vestibulum imperdiet. In consectetur, nunc cursus sodales scelerisque, tellus eros tristique nisl, ut luctus augue dolor vel nibh. Fusce eget dui sed eros tristique varius lacinia id sapien. Nullam ac lorem ac lacus cursus ultricies id a risus. Ut eget dolor sem. Aliquam euismod consequat euismod. Duis sit amet neque et massa ullamcorper tempor.</p> <p>Quisque rutrum, ipsum ac volutpat dictum, urna diam facilisis enim, ac vestibulum justo metus eu mi. Curabitur nunc sem, consequat a mollis non, bibendum vitae dolor. Mauris pulvinar pellentesque tellus, vel aliquet mauris vulputate vel. Morbi eu ante id nulla ultricies tincidunt. Proin porta, felis nec tincidunt iaculis, justo nibh laoreet dolor, eu sollicitudin arcu justo et odio. Sed suscipit tellus lobortis est tristique semper fermentum magna laoreet. Sed eget ante nunc, vitae varius purus. Mauris nec viverra neque. Morbi et lectus velit. Class aptent taciti sociosqu ad litora torquent per conubia nostra, per inceptos himenaeos. Integer sit amet lobortis magna.</p> <p>Phasellus elementum iaculis sem in consectetur. Curabitur nec dictum enim. Nunc at pellentesque augue. Nulla sit amet sapien neque, et molestie augue. Pellentesque habitant morbi tristique senectus et netus et malesuada fames ac turpis egestas. Proin non elit ante. Mauris justo tellus, feugiat at dapibus a, placerat id felis. Nullam lobortis vehicula rutrum. Fusce tristique pharetra urna, ac scelerisque ipsum consequat eget. Morbi at ipsum in tellus luctus volutpat. Duis placerat accumsan lacus, dictum convallis elit porttitor eu.</p> <p>Sed ac neque sit amet neque luctus rhoncus. Vestibulum sit amet commodo ante. Duis ullamcorper est id dui ullamcorper cursus. Maecenas fringilla ultricies turpis, nec pulvinar libero faucibus a. Quisque bibendum aliquam sapien, in fermentum arcu iaculis at. Mauris bibendum, metus sed rhoncus fringilla, nisl purus interdum eros, vitae malesuada felis est rhoncus magna. Phasellus elit justo, sagittis nec interdum tincidunt, mollis quis justo. Suspendisse rhoncus rutrum vestibulum. Aliquam ut nunc lectus, quis aliquam risus. Aliquam vel nulla sed odio blandit sagittis. Nulla facilisi. Vivamus ullamcorper, lectus facilisis eleifend accumsan, purus massa sollicitudin nunc, in sodales tellus dui eget est. Morbi ipsum nisi, semper sit amet vehicula sit amet, semper at mauris. Nam mollis massa sed risus scelerisque quis congue mauris tempus. Vestibulum nec urna magna, vitae ornare massa. Aenean adipiscing tempor rutrum.</p> <p>In hac habitasse platea dictumst. Etiam in dolor eros, eleifend volutpat magna. Sed blandit gravida feugiat. Sed eu dolor in odio sagittis molestie eget ac orci. Phasellus tellus erat, scelerisque tincidunt lacinia sed, placerat eu sapien. Curabitur lobortis feugiat cursus. Nam eu egestas justo. Nullam dignissim enim ipsum, sed semper orci. Donec nulla dui, viverra vel viverra eu, eleifend nec justo. Sed in ultricies turpis. Maecenas ullamcorper, erat ac scelerisque mattis, augue magna laoreet mauris, nec sagittis tellus enim eget tellus. Lorem ipsum dolor sit amet, consectetur adipiscing elit. In vestibulum urna eu magna ultricies adipiscing. Phasellus sed urna at nibh euismod vestibulum at eget dui. Nulla ullamcorper viverra tellus ut volutpat. Praesent hendrerit, purus a imperdiet tempus, turpis est suscipit felis, ut commodo diam orci ac augue. Quisque consectetur varius sapien, vel lobortis ante porttitor sit amet. Proin fermentum blandit justo, id faucibus elit feugiat ut. Nulla quam elit, tristique gravida ultrices in, imperdiet et enim.</p> <p>Aliquam malesuada, nibh eget laoreet malesuada, lorem ligula gravida eros, a consectetur dui odio id urna. Vivamus tincidunt porttitor facilisis. Maecenas vitae lacus at lorem porttitor sodales. Duis et velit ac ipsum cursus ornare. Aliquam eu rhoncus est. Cras nec facilisis tellus. Nunc in felis odio. Nam facilisis dui eu lacus egestas sit amet malesuada dolor volutpat. In placerat dictum turpis ac vulputate. Suspendisse neque odio, elementum sagittis sollicitudin quis, eleifend ac orci. Proin suscipit molestie orci non venenatis. Sed metus mauris, laoreet id lobortis at, tempor eu erat. Mauris tempor, nisi id interdum tempor, tellus ligula pretium mi, a viverra nibh neque vitae est. Integer mattis, lorem ac congue fermentum, quam ipsum gravida erat, in egestas lorem eros ac massa. Vestibulum lobortis ante libero, vel fermentum ante. Aliquam augue ipsum, ullamcorper sit amet dictum id, commodo sit amet lacus. Vivamus elit purus, elementum a vestibulum quis, iaculis id metus. Cras facilisis orci in nulla consequat gravida. Integer blandit, felis at lacinia porta, lacus velit pretium magna, ut eleifend diam magna a justo. Donec scelerisque diam quis nisi molestie vel egestas urna condimentum. </p> <script type="text/javascript"> Effect.Shake('floating_text'); </script> </body> </html>

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  • Elegant way for a recursive C++ template to do something different with the leaf class?

    - by Costas
    I have a C++ class template that makes an Array of pointers. This also gets typedefed to make Arrays of Arrays and so on: typedef Array<Elem> ElemArray; typedef Array<ElemArray> ElemArrayArray; typedef Array<ElemArrayArray> ElemArrayArrayArray; I would like to be able to set one leaf node from another by copying the pointer so they both refer to the same Elem. But I also want to be able to set one Array (or Array of Arrays etc) from another. In this case I don't want to copy the pointers, I want to keep the arrays seperate and descend into each one until I get to the leaf node, at where I finally copy the pointers. I have code that does this (below). When you set something in an Array it calls a CopyIn method to do the copying. But because this is templated it also has to call the CopyIn method on the leaf class, which means I have to add a dummy method to every leaf class that just returns false. I have also tried adding a flag to the template to tell it whether it contains Arrays or not, and so whether to call the CopyIn method. This works fine - the CopyIn method of the leaf nodes never gets called, but it still has to be there for the compile to work! Is there a better way to do this? #include <stdio.h> class Elem { public: Elem(int v) : mI(v) {} void Print() { printf("%d\n",mI); } bool CopyIn(Elem *v) { return false; } int mI; }; template < typename T > class Array { public: Array(int size) : mB(0), mN(size) { mB = new T* [size]; for (int i=0; i<mN; i++) mB[i] = new T(mN); } ~Array() { for (int i=0; i<mN; i++) delete mB[i]; delete [] mB; } T* Get(int i) { return mB[i]; } void Set(int i, T* v) { if (! mB[i]->CopyIn(v) ) { // its not an array, so copy the pointer mB[i] = v; } } bool CopyIn(Array<T>* v) { for (int i=0; i<mN; i++) { if (v && i < v->mN ) { if ( ! mB[i]->CopyIn( v->mB[i] )) { // its not an array, so copy the pointer mB[i] = v->mB[i]; } } else { mB[i] = 0; } } return true; // we did the copy, no need to copy pointer } void Print() { for (int i=0; i<mN; i++) { printf("[%d] ",i); mB[i]->Print(); } } private: T **mB; int mN; }; typedef Array<Elem> ElemArray; typedef Array<ElemArray> ElemArrayArray; typedef Array<ElemArrayArray> ElemArrayArrayArray; int main () { ElemArrayArrayArray* a = new ElemArrayArrayArray(2); ElemArrayArrayArray* b = new ElemArrayArrayArray(3); // In this case I need to copy the pointer to the Elem into the ElemArrayArray a->Get(0)->Get(0)->Set(0, b->Get(0)->Get(0)->Get(0)); // in this case I need go down through a and b until I get the to Elems // so I can copy the pointers a->Set(1,b->Get(2)); b->Get(0)->Get(0)->Get(0)->mI = 42; // this will also set a[0,0,0] b->Get(2)->Get(1)->Get(1)->mI = 96; // this will also set a[1,1,1] // should be 42,2, 2,2, 3,3, 3,96 a->Print(); }

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  • A message to Denis Pitcher

    - by guybarrette
    Denis Pitcher, You posted this comment on my blog and some other blogs: Devteach's promotion for a one year MSDN subscription was not honoured and attempts to contact them result in a "we sent attendee info to MS, it's not our problem" response while attempts to contact Microsoft result in the suggestion that any queries should be redirect to Devteach. Hopefully not all attendees we're cheated though if you're considering attending a future Devteach it is recommended that you don't hold any expectation that they'll honour their promotions. I spoke to Jean-René Roy, DevTeach organizer and also to MSDN Canada folks.  Looks like the email you used to register for the conference is now bouncing (maybe a typo when you registered?).  That why you haven’t received any news about the offer.  The fact that you’re leaving the same comment on various blogs without your email address doesn’t help at all.  Thay want to contact you!  Also, looks like they never received your emails, maybe you used a the wrong email addresses. Anyway, please contact Jean-René Roy at [email protected] ASAP.

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  • Bridging The Gap Between Developers And Testers With VS 2010

    - by Vincent Grondin
    On January 29th Etienne Tremblay and I presented infront of roughly 120 people in Ottawa a 7 hours "sketch" on how VS 2010 and TFS 2010 can help both devs and testers in their respective work.  The presentation focused on how a testers' work can positively influence a developers' work and vice versa.  The format was quite unusual as I said it's a "sketch" where Etienne and I "ignore" the audience and we do as if we were at work and the audience is sort of "spying" on us.  In all I'm quite pleased with the content we presented and the format sure was alot of fun to render and I think the audience liked it too...  The good news for you people reading this post is that it got RECORDED and it's now available for download in quick 25 to 35 minutes format on the dev teach web site:  http://www.devteach.com/ALM-TFS2010-Bridgingthegap.aspx   There where 2 cameras, one filming us and one capturing the screen for our demos.  We switch from one to another in an intersting flow and Jean-René Roy made sure he kept all our goofs and didn't edit those funny "oups moments" where we screw-up in the scenario...  Mostly educative but hilarious at times !!! I encourage you all to download and watch the 13 episodes...  Follow a day at work for a tester and a developper using VS 2010 and TFS 2010 to improve their chemistry !  Thanks to Jean-René Roy for all the work he's put into this event and to Microsoft and Pyxis for sponsoring the event.

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  • Podcast Show Notes: The Big Deal About Big Data

    - by Bob Rhubart
    This week the OTN ArchBeat kicks off a three-part series that looks at Big Data: what it is, its affect on enterprise IT, and what architects need to do to stay ahead of the big data curve. My guests for this conversation are Jean-Pierre Dijks and Andrew Bond . Jean-Pierre, based at Oracle HQ in Redwood Shores, CA, is product manager for Oracle Big Data Appliance and Oracle's big data strategy. Andrew Bond  is Head of Transformation Architecture for Oracle, where he specialzes in Data Warehousing, Business Intelligence, and Big Data. Andrew is based in the UK, but for this conversation he dialed in from a car somewhere on the streets of Amsterdam. Listen to Part 1What is Big Data, really, and why does it matter? Listen to Part 2 (Oct 10)What new challenges does Big Data present for Architects? What do architects need to do to prepare themselves and their environments? Listen to Part 3 (Oct 17)Who is driving the adoption of Big Data strategies in organizations, and why? Additional Resources http://blogs.oracle.com/datawarehousing http://www.facebook.com/pages/OracleBigData https://twitter.com/#!/OracleBigData Coming Soon A conversation about how the rapidly evolving enterprise IT landscape is transforming the roles, responsibilities, and skill requirements for architects and developers. Stay tuned: RSS

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  • Looking under the hood of SSRS

    - by Jim Giercyk
    SSRS is a powerful tool, but there is very little available to measure it’s performance or view the SSRS execution log or catalog in detail.  Here are a few simple queries that will give you insight to the system that you never had before.   ACTIVE REPORTS:  Have you ever seen your SQL Server performance take a nose dive due to a long-running report?  If the SPID is executing under a generic Report ID, or it is a scheduled job, you may have no way to tell which report is killing your server.  Running this query will show you which reports are executing at a given time, and WHO is executing them.   USE ReportServerNative SELECT runningjobs.computername,             runningjobs.requestname,              runningjobs.startdate,             users.username,             Datediff(s,runningjobs.startdate, Getdate()) / 60 AS    'Active Minutes' FROM runningjobs INNER JOIN users ON runningjobs.userid = users.userid ORDER BY runningjobs.startdate               SSRS CATALOG:  We have all asked “What was the last thing that changed”, or better yet, “Who in the world did that!”.  Here is a query that will show all of the reports in your SSRS catalog, when they were created and changed, and by who.           USE ReportServerNative SELECT DISTINCT catalog.PATH,                            catalog.name,                            users.username AS [Created By],                             catalog.creationdate,                            users_1.username AS [Modified By],                            catalog.modifieddate FROM catalog         INNER JOIN users ON catalog.createdbyid = users.userid  INNER JOIN users AS users_1 ON catalog.modifiedbyid = users_1.userid INNER JOIN executionlogstorage ON catalog.itemid = executionlogstorage.reportid WHERE ( catalog.name <> '' )               SSRS EXECUTION LOG:  Sometimes we need to know what was happening on the SSRS report server at a given time in the past.  This query will help you do just that.  You will need to set the timestart and timeend in the WHERE clause to suit your needs.         USE ReportServerNative SELECT catalog.name AS report,        executionlogstorage.username AS [User],        executionlogstorage.timestart,        executionlogstorage.timeend,         Datediff(mi,e.timestart,e.timeend) AS ‘Time In Minutes',        catalog.modifieddate AS [Report Last Modified],        users.username FROM   catalog  (nolock)        INNER JOIN executionlogstorage e (nolock)          ON catalog.itemid = executionlogstorage.reportid        INNER JOIN users (nolock)          ON catalog.modifiedbyid = users.userid WHERE  executionlogstorage.timestart >= Dateadd(s, -1, '03/31/2012')        AND executionlogstorage.timeend <= Dateadd(DAY, 1, '04/02/2012')      LONG RUNNING REPORTS:  This query will show the longest running reports over a given time period.  Note that the “>5” in the WHERE clause sets the report threshold at 5 minutes, so anything that ran less than 5 minutes will not appear in the result set.  Adjust the threshold and start/end times to your liking.  With this information in hand, you can better optimize your system by tweaking the longest running reports first.         USE ReportServerNative SELECT executionlogstorage.instancename,        catalog.PATH,        catalog.name,        executionlogstorage.username,        executionlogstorage.timestart,        executionlogstorage.timeend,        Datediff(mi, e.timestart, e.timeend) AS 'Minutes',        executionlogstorage.timedataretrieval,        executionlogstorage.timeprocessing,        executionlogstorage.timerendering,        executionlogstorage.[RowCount],        users_1.username        AS createdby,        CONVERT(VARCHAR(10), catalog.creationdate, 101)        AS 'Creation Date',        users.username        AS modifiedby,        CONVERT(VARCHAR(10), catalog.modifieddate, 101)        AS 'Modified Date' FROM   executionlogstorage e         INNER JOIN catalog          ON executionlogstorage.reportid = catalog.itemid        INNER JOIN users          ON catalog.modifiedbyid = users.userid        INNER JOIN users AS users_1          ON catalog.createdbyid = users_1.userid WHERE  ( e.timestart > '03/31/2012' )        AND ( e.timestart <= '04/02/2012' )        AND  Datediff(mi, e.timestart, e.timeend) > 5        AND catalog.name <> '' ORDER  BY 'Minutes' DESC        I have used these queries to build SSRS reports that I can refer to quickly, and export to Excel if I need to report or quantify my findings.  I encourage you to look at the data in the ReportServerNative database on your report server to understand the queries and create some of your own.  For instance, you may want a query to determine which reports are using which shared data sources.  Work smarter, not harder!

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  • Reading Data from DDFS ValueError: No JSON object could be decoded

    - by secumind
    I'm running dozens of map reduce jobs for a number of different purposes using disco. My data has grown enormous and I thought I would try using DDFS for a change rather than standard txt files. I've followed the DISCO map/reduce example Counting Words as a map/reduce job, without to much difficulty and with the help of others, Reading JSON specific data into DISCO I've gotten past one of my latest problems. I'm trying to read data in/out of ddfs to better chunk and distribute it but am having a bit of trouble. Here's an example file: file.txt {"favorited": false, "in_reply_to_user_id": null, "contributors": null, "truncated": false, "text": "I'll call him back tomorrow I guess", "created_at": "Mon Feb 13 05:34:27 +0000 2012", "retweeted": false, "in_reply_to_status_id_str": null, "coordinates": null, "in_reply_to_user_id_str": null, "entities": {"user_mentions": [], "hashtags": [], "urls": []}, "in_reply_to_status_id": null, "id_str": "168931016843603968", "place": null, "user": {"follow_request_sent": null, "profile_use_background_image": true, "profile_background_image_url_https": "https://si0.twimg.com/profile_background_images/305726905/FASHION-3.png", "verified": false, "profile_image_url_https": "https://si0.twimg.com/profile_images/1818996723/image_normal.jpg", "profile_sidebar_fill_color": "292727", "is_translator": false, "id": 113532729, "profile_text_color": "000000", "followers_count": 78, "protected": false, "location": "With My Niggas In Paris!", "default_profile_image": false, "listed_count": 0, "utc_offset": -21600, "statuses_count": 6733, "description": "Made in CHINA., Educated && Making My Own $$. Fear GOD && Put Him 1st. #TeamFollowBack #TeamiPhone\n", "friends_count": 74, "profile_link_color": "b03f3f", "profile_image_url": "http://a2.twimg.com/profile_images/1818996723/image_normal.jpg", "notifications": null, "show_all_inline_media": false, "geo_enabled": true, "profile_background_color": "1f9199", "id_str": "113532729", "profile_background_image_url": "http://a3.twimg.com/profile_background_images/305726905/FASHION-3.png", "name": "Bee'Jay", "lang": "en", "profile_background_tile": true, "favourites_count": 19, "screen_name": "OohMyBEEsNice", "url": "http://www.bitchimpaid.org", "created_at": "Fri Feb 12 03:32:54 +0000 2010", "contributors_enabled": false, "time_zone": "Central Time (US & Canada)", "profile_sidebar_border_color": "000000", "default_profile": false, "following": null}, "in_reply_to_screen_name": null, "retweet_count": 0, "geo": null, "id": 168931016843603968, "source": "<a href=\"http://twitter.com/#!/download/iphone\" rel=\"nofollow\">Twitter for iPhone</a>"} {"favorited": false, "in_reply_to_user_id": 50940453, "contributors": null, "truncated": false, "text": "@LegaMrvica @MimozaBand makasi om artis :D kadoo kadoo", "created_at": "Mon Feb 13 05:34:27 +0000 2012", "retweeted": false, "in_reply_to_status_id_str": "168653037894770688", "coordinates": null, "in_reply_to_user_id_str": "50940453", "entities": {"user_mentions": [{"indices": [0, 11], "screen_name": "LegaMrvica", "id": 50940453, "name": "Lega_thePianis", "id_str": "50940453"}, {"indices": [12, 23], "screen_name": "MimozaBand", "id": 375128905, "name": "Mimoza", "id_str": "375128905"}], "hashtags": [], "urls": []}, "in_reply_to_status_id": 168653037894770688, "id_str": "168931016868761600", "place": null, "user": {"follow_request_sent": null, "profile_use_background_image": true, "profile_background_image_url_https": "https://si0.twimg.com/profile_background_images/347686061/Galungan_dan_Kuningan.jpg", "verified": false, "profile_image_url_https": "https://si0.twimg.com/profile_images/1803845596/Picture_20124_normal.jpg", "profile_sidebar_fill_color": "DDFFCC", "is_translator": false, "id": 48293450, "profile_text_color": "333333", "followers_count": 182, "protected": false, "location": "\u00dcT: -6.906799,107.622383", "default_profile_image": false, "listed_count": 0, "utc_offset": -28800, "statuses_count": 3052, "description": "Fashion design maranatha '11 // traditional dancer (bali) at sanggar tampak siring & Natya Nataraja", "friends_count": 206, "profile_link_color": "0084B4", "profile_image_url": "http://a3.twimg.com/profile_images/1803845596/Picture_20124_normal.jpg", "notifications": null, "show_all_inline_media": false, "geo_enabled": true, "profile_background_color": "9AE4E8", "id_str": "48293450", "profile_background_image_url": "http://a0.twimg.com/profile_background_images/347686061/Galungan_dan_Kuningan.jpg", "name": "nana afiff", "lang": "en", "profile_background_tile": true, "favourites_count": 2, "screen_name": "hasnfebria", "url": null, "created_at": "Thu Jun 18 08:50:29 +0000 2009", "contributors_enabled": false, "time_zone": "Pacific Time (US & Canada)", "profile_sidebar_border_color": "BDDCAD", "default_profile": false, "following": null}, "in_reply_to_screen_name": "LegaMrvica", "retweet_count": 0, "geo": null, "id": 168931016868761600, "source": "<a href=\"http://blackberry.com/twitter\" rel=\"nofollow\">Twitter for BlackBerry\u00ae</a>"} {"favorited": false, "in_reply_to_user_id": 27260086, "contributors": null, "truncated": false, "text": "@justinbieber u were born to be somebody, and u're super important in beliebers' life. thanks for all biebs. I love u. follow me? 84", "created_at": "Mon Feb 13 05:34:27 +0000 2012", "retweeted": false, "in_reply_to_status_id_str": null, "coordinates": null, "in_reply_to_user_id_str": "27260086", "entities": {"user_mentions": [{"indices": [0, 13], "screen_name": "justinbieber", "id": 27260086, "name": "Justin Bieber", "id_str": "27260086"}], "hashtags": [], "urls": []}, "in_reply_to_status_id": null, "id_str": "168931016856178688", "place": null, "user": {"follow_request_sent": null, "profile_use_background_image": true, "profile_background_image_url_https": "https://si0.twimg.com/profile_background_images/416005864/Captura.JPG", "verified": false, "profile_image_url_https": "https://si0.twimg.com/profile_images/1808883280/Captura6_normal.JPG", "profile_sidebar_fill_color": "f5e7f3", "is_translator": false, "id": 406750700, "profile_text_color": "333333", "followers_count": 1122, "protected": false, "location": "Adentro de una supra.", "default_profile_image": false, "listed_count": 0, "utc_offset": -14400, "statuses_count": 20966, "description": "Mi \u00eddolo es @justinbieber , si te gusta \u00a1genial!, si no, solo respetalo. El cambi\u00f3 mi vida completamente y mi sue\u00f1o es conocerlo #TrueBelieber . ", "friends_count": 1015, "profile_link_color": "9404b8", "profile_image_url": "http://a1.twimg.com/profile_images/1808883280/Captura6_normal.JPG", "notifications": null, "show_all_inline_media": false, "geo_enabled": false, "profile_background_color": "f9fcfa", "id_str": "406750700", "profile_background_image_url": "http://a3.twimg.com/profile_background_images/416005864/Captura.JPG", "name": "neversaynever,right?", "lang": "es", "profile_background_tile": false, "favourites_count": 22, "screen_name": "True_Belieebers", "url": "http://www.wehavebieber-fever.tumblr.com", "created_at": "Mon Nov 07 04:17:40 +0000 2011", "contributors_enabled": false, "time_zone": "Santiago", "profile_sidebar_border_color": "C0DEED", "default_profile": false, "following": null}, "in_reply_to_screen_name": "justinbieber", "retweet_count": 0, "geo": null, "id": 168931016856178688, "source": "<a href=\"http://yfrog.com\" rel=\"nofollow\">Yfrog</a>"} I load it into DDFS with: # ddfs chunk data:test1 ./file.txt created: disco://localhost/ddfs/vol0/blob/44/file_txt-0$549-db27b-125e1 I test that the file is indeed loaded into ddfs with: # ddfs xcat data:test1 {"favorited": false, "in_reply_to_user_id": null, "contributors": null, "truncated": false, "text": "I'll call him back tomorrow I guess", "created_at": "Mon Feb 13 05:34:27 +0000 2012", "retweeted": false, "in_reply_to_status_id_str": null, "coordinates": null, "in_reply_to_user_id_str": null, "entities": {"user_mentions": [], "hashtags": [], "urls": []}, "in_reply_to_status_id": null, "id_str": "168931016843603968", "place": null, "user": {"follow_request_sent": null, "profile_use_background_image": true, "profile_background_image_url_https": "https://si0.twimg.com/profile_background_images/305726905/FASHION-3.png", "verified": false, "profile_image_url_https": "https://si0.twimg.com/profile_images/1818996723/image_normal.jpg", "profile_sidebar_fill_color": "292727", "is_translator": false, "id": 113532729, "profile_text_color": "000000", "followers_count": 78, "protected": false, "location": "With My Niggas In Paris!", "default_profile_image": false, "listed_count": 0, "utc_offset": -21600, "statuses_count": 6733, "description": "Made in CHINA., Educated && Making My Own $$. Fear GOD && Put Him 1st. #TeamFollowBack #TeamiPhone\n", "friends_count": 74, "profile_link_color": "b03f3f", "profile_image_url": "http://a2.twimg.com/profile_images/1818996723/image_normal.jpg", "notifications": null, "show_all_inline_media": false, "geo_enabled": true, "profile_background_color": "1f9199", "id_str": "113532729", "profile_background_image_url": "http://a3.twimg.com/profile_background_images/305726905/FASHION-3.png", "name": "Bee'Jay", "lang": "en", "profile_background_tile": true, "favourites_count": 19, "screen_name": "OohMyBEEsNice", "url": "http://www.bitchimpaid.org", "created_at": "Fri Feb 12 03:32:54 +0000 2010", "contributors_enabled": false, "time_zone": "Central Time (US & Canada)", "profile_sidebar_border_color": "000000", "default_profile": false, "following": null}, "in_reply_to_screen_name": null, "retweet_count": 0, "geo": null, "id": 168931016843603968, "source": "<a href=\"http://twitter.com/#!/download/iphone\" rel=\"nofollow\">Twitter for iPhone</a>"} {"favorited": false, "in_reply_to_user_id": 50940453, "contributors": null, "truncated": false, "text": "@LegaMrvica @MimozaBand makasi om artis :D kadoo kadoo", "created_at": "Mon Feb 13 05:34:27 +0000 2012", "retweeted": false, "in_reply_to_status_id_str": "168653037894770688", "coordinates": null, "in_reply_to_user_id_str": "50940453", "entities": {"user_mentions": [{"indices": [0, 11], "screen_name": "LegaMrvica", "id": 50940453, "name": "Lega_thePianis", "id_str": "50940453"}, {"indices": [12, 23], "screen_name": "MimozaBand", "id": 375128905, "name": "Mimoza", "id_str": "375128905"}], "hashtags": [], "urls": []}, "in_reply_to_status_id": 168653037894770688, "id_str": "168931016868761600", "place": null, "user": {"follow_request_sent": null, "profile_use_background_image": true, "profile_background_image_url_https": "https://si0.twimg.com/profile_background_images/347686061/Galungan_dan_Kuningan.jpg", "verified": false, "profile_image_url_https": "https://si0.twimg.com/profile_images/1803845596/Picture_20124_normal.jpg", "profile_sidebar_fill_color": "DDFFCC", "is_translator": false, "id": 48293450, "profile_text_color": "333333", "followers_count": 182, "protected": false, "location": "\u00dcT: -6.906799,107.622383", "default_profile_image": false, "listed_count": 0, "utc_offset": -28800, "statuses_count": 3052, "description": "Fashion design maranatha '11 // traditional dancer (bali) at sanggar tampak siring & Natya Nataraja", "friends_count": 206, "profile_link_color": "0084B4", "profile_image_url": "http://a3.twimg.com/profile_images/1803845596/Picture_20124_normal.jpg", "notifications": null, "show_all_inline_media": false, "geo_enabled": true, "profile_background_color": "9AE4E8", "id_str": "48293450", "profile_background_image_url": "http://a0.twimg.com/profile_background_images/347686061/Galungan_dan_Kuningan.jpg", "name": "nana afiff", "lang": "en", "profile_background_tile": true, "favourites_count": 2, "screen_name": "hasnfebria", "url": null, "created_at": "Thu Jun 18 08:50:29 +0000 2009", "contributors_enabled": false, "time_zone": "Pacific Time (US & Canada)", "profile_sidebar_border_color": "BDDCAD", "default_profile": false, "following": null}, "in_reply_to_screen_name": "LegaMrvica", "retweet_count": 0, "geo": null, "id": 168931016868761600, "source": "<a href=\"http://blackberry.com/twitter\" rel=\"nofollow\">Twitter for BlackBerry\u00ae</a>"} {"favorited": false, "in_reply_to_user_id": 27260086, "contributors": null, "truncated": false, "text": "@justinbieber u were born to be somebody, and u're super important in beliebers' life. thanks for all biebs. I love u. follow me? 84", "created_at": "Mon Feb 13 05:34:27 +0000 2012", "retweeted": false, "in_reply_to_status_id_str": null, "coordinates": null, "in_reply_to_user_id_str": "27260086", "entities": {"user_mentions": [{"indices": [0, 13], "screen_name": "justinbieber", "id": 27260086, "name": "Justin Bieber", "id_str": "27260086"}], "hashtags": [], "urls": []}, "in_reply_to_status_id": null, "id_str": "168931016856178688", "place": null, "user": {"follow_request_sent": null, "profile_use_background_image": true, "profile_background_image_url_https": "https://si0.twimg.com/profile_background_images/416005864/Captura.JPG", "verified": false, "profile_image_url_https": "https://si0.twimg.com/profile_images/1808883280/Captura6_normal.JPG", "profile_sidebar_fill_color": "f5e7f3", "is_translator": false, "id": 406750700, "profile_text_color": "333333", "followers_count": 1122, "protected": false, "location": "Adentro de una supra.", "default_profile_image": false, "listed_count": 0, "utc_offset": -14400, "statuses_count": 20966, "description": "Mi \u00eddolo es @justinbieber , si te gusta \u00a1genial!, si no, solo respetalo. El cambi\u00f3 mi vida completamente y mi sue\u00f1o es conocerlo #TrueBelieber . ", "friends_count": 1015, "profile_link_color": "9404b8", "profile_image_url": "http://a1.twimg.com/profile_images/1808883280/Captura6_normal.JPG", "notifications": null, "show_all_inline_media": false, "geo_enabled": false, "profile_background_color": "f9fcfa", "id_str": "406750700", "profile_background_image_url": "http://a3.twimg.com/profile_background_images/416005864/Captura.JPG", "name": "neversaynever,right?", "lang": "es", "profile_background_tile": false, "favourites_count": 22, "screen_name": "True_Belieebers", "url": "http://www.wehavebieber-fever.tumblr.com", "created_at": "Mon Nov 07 04:17:40 +0000 2011", "contributors_enabled": false, "time_zone": "Santiago", "profile_sidebar_border_color": "C0DEED", "default_profile": false, "following": null}, "in_reply_to_screen_name": "justinbieber", "retweet_count": 0, "geo": null, "id": 168931016856178688, "source": "<a href=\"http://yfrog.com\" rel=\"nofollow\">Yfrog</a> At this point everything is great, I load up the script that resulted from a previous Stack Post: from disco.core import Job, result_iterator import gzip def map(line, params): import unicodedata import json r = json.loads(line).get('text') s = unicodedata.normalize('NFD', r).encode('ascii', 'ignore') for word in s.split(): yield word, 1 def reduce(iter, params): from disco.util import kvgroup for word, counts in kvgroup(sorted(iter)): yield word, sum(counts) if __name__ == '__main__': job = Job().run(input=["tag://data:test1"], map=map, reduce=reduce) for word, count in result_iterator(job.wait(show=True)): print word, count NOTE: That this script runs file if the input=["file.txt"], however when I run it with "tag://data:test1" I get the following error: # DISCO_EVENTS=1 python count_normal_words.py Job@549:db30e:25bd8: Status: [map] 0 waiting, 1 running, 0 done, 0 failed 2012/11/25 21:43:26 master New job initialized! 2012/11/25 21:43:26 master Starting job 2012/11/25 21:43:26 master Starting map phase 2012/11/25 21:43:26 master map:0 assigned to solice 2012/11/25 21:43:26 master ERROR: Job failed: Worker at 'solice' died: Traceback (most recent call last): File "/home/DISCO/data/solice/01/Job@549:db30e:25bd8/usr/local/lib/python2.7/site-packages/disco/worker/__init__.py", line 329, in main job.worker.start(task, job, **jobargs) File "/home/DISCO/data/solice/01/Job@549:db30e:25bd8/usr/local/lib/python2.7/site-packages/disco/worker/__init__.py", line 290, in start self.run(task, job, **jobargs) File "/home/DISCO/data/solice/01/Job@549:db30e:25bd8/usr/local/lib/python2.7/site-packages/disco/worker/classic/worker.py", line 286, in run getattr(self, task.mode)(task, params) File "/home/DISCO/data/solice/01/Job@549:db30e:25bd8/usr/local/lib/python2.7/site-packages/disco/worker/classic/worker.py", line 299, in map for key, val in self['map'](entry, params): File "count_normal_words.py", line 12, in map File "/usr/lib64/python2.7/json/__init__.py", line 326, in loads return _default_decoder.decode(s) File "/usr/lib64/python2.7/json/decoder.py", line 366, in decode obj, end = self.raw_decode(s, idx=_w(s, 0).end()) File "/usr/lib64/python2.7/json/decoder.py", line 384, in raw_decode raise ValueError("No JSON object could be decoded") ValueError: No JSON object could be decoded 2012/11/25 21:43:26 master WARN: Job killed Status: [map] 1 waiting, 0 running, 0 done, 1 failed Traceback (most recent call last): File "count_normal_words.py", line 28, in <module> for word, count in result_iterator(job.wait(show=True)): File "/usr/local/lib/python2.7/site-packages/disco/core.py", line 348, in wait timeout, poll_interval * 1000) File "/usr/local/lib/python2.7/site-packages/disco/core.py", line 309, in check_results raise JobError(Job(name=jobname, master=self), "Status %s" % status) disco.error.JobError: Job Job@549:db30e:25bd8 failed: Status dead The Error states: ValueError: No JSON object could be decoded. Again, this works fine using the text file as input but now DDFS. Any ideas, I'm open to suggestions?

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  • php - usort or array_multisort?

    - by Simpson88Keys
    Trying to sort the array below by memnum in ascending order, and I'm a bit confused which is better to use... usort or array_multisort? I was thinking usort because it's multidimensional? Does anyone have an example of this? Array ( [0] => Array ( [memnum] => 3236467423 [mid] => 1104881300 [fname] => JOHN [lname] => DOE [add1] => OMITTED [add2] => [city] => CHESTERFIELD [state] => MI [zip] => 48051 [age] => 50 ) [1] => Array ( [memnum] => 3258467922 [mid] => 1105121457 [fname] => JANE [lname] => DOE [add1] => OMITTED [add2] => [city] => CHESTERFIELD [state] => MI [zip] => 48051 [age] => 50 ) [2] => Array ( [memnum] => 3237769108 [mid] => 1104489312 [fname] => BOB [lname] => DOE [add1] => OMITTED [add2] => [city] => CHESTERFIELD [state] => MI [zip] => 48051 [age] => 50 ) )

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  • RegEx: difference between "(?:...) and normal parentheses

    - by N0thing
    >>> re.findall(r"(?:do|re|mi)+", "mimi") ['mimi'] >>> re.findall(r"(do|re|mi)+", "mimi") ['mi'] According to my understanding of the definitions, it should produce the same answer. The only difference between (...) and (?:...) should be whether or not we can use back-references later. Am I missing something? (...) Matches whatever regular expression is inside the parentheses, and indicates the start and end of a group; the contents of a group can be retrieved after a match has been performed, and can be matched later in the string with the \number special sequence, described below. To match the literals '(' or ')', use ( or ), or enclose them inside a character class: [(] [)]. (?:...) A non-capturing version of regular parentheses. Matches whatever regular expression is inside the parentheses, but the substring matched by the group cannot be retrieved after performing a match or referenced later in the pattern.

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  • C programming - How to print numbers with a decimal component using only loops?

    - by californiagrown
    I'm currently taking a basic intro to C programming class, and for our current assignment I am to write a program to convert the number of kilometers to miles using loops--no if-else, switch statements, or any other construct we haven't learned yet are allowed. So basically we can only use loops and some operators. The program will generate three identical tables (starting from 1 kilometer through the input value) for one number input using the while loop for the first set of calculations, the for loop for the second, and the do loop for the third. I've written the entire program, however I'm having a bit of a problem with getting it to recognize an input with a decimal component. Here is what I have for the while loop conversions: #include <stdio.h> #define KM_TO_MILE .62 main (void) { double km, mi, count; printf ("This program converts kilometers to miles.\n"); do { printf ("\nEnter a positive non-zero number"); printf (" of kilometers of the race: "); scanf ("%lf", &km); getchar(); }while (km <= 1); printf ("\n KILOMETERS MILES (while loop)\n"); printf (" ========== =====\n"); count = 1; while (count <= km) { mi = KM_TO_MILE * count; printf ("%8.3lf %14.3lf\n", count, mi); ++count; } getchar(); } The code reads in and converts integers fine, but because the increment only increases by 1 it won't print a number with a decimal component (e.g. 3.2, 22.6, etc.). Can someone point me in the right direction on this? I'd really appreciate any help! :)

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  • Problem with Matlab functions

    - by appi
    HI. I got this matlab functionWhen I ran it, the following error messege showed up. Can anybody give me some hint? Thank you. The code is also shown below. [h,im_matched,theta,I,J]=im_reg_MI('keyframe1.jpg','keyframe2.jpg', 0, 1) ??? Undefined function or variable "h". Error in == im_reg_MI at 74 [a, b] = max(h(:));% finding the max of MI and indecises Below is the code. [h,im_matched, theta,I,J]=im_reg_MI(image1, image2, angle, step) [m,n]=size(image1); [p,q]=size(image2); [a,b]=size(angle); im1=round(image1); for k=1:b J = rotate_image(angle(k),image2); %rotated cropped IMAGE2 image21=round(J); [m1,n1]=size(image21); for i=1:step:(m1-m) for j=1:step:(n1-n) im2=image21(i:(i+m-1),j:(j+n-1)); % selecting part of IMAGE2 matching the size of IMAHE1 im2=round(im2); h(k,i,j)=MI2(im1,im2); % calculating MI end end end [a, b] = max(h(:));% finding the max of MI and indecises

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  • nginx reload failing: `object version does not match bootstrap parameter`

    - by Jean Jordaan
    I added a server stanza to my virtual.conf, and now nginx seems to have a problem reloading the config. At this point I don't know what exactly is going wrong or how to debug better. Any help would be most appreciated. The config test succeeds: root@server:~# service nginx configtest nginx: the configuration file /etc/nginx/nginx.conf syntax is ok nginx: configuration file /etc/nginx/nginx.conf test is successful I'm tailing the logfile. Upon reload, the following error is logged. As far as I can see, the new config is not used. root@server:~# service nginx reload Reloading nginx: [ OK ] root@server:~# ==> /var/log/nginx/error.log <== nginx object version 0.8.54 does not match bootstrap parameter 1.0.15 at /usr/lib64/perl5/XSLoader.pm line 94. Compilation failed in require. BEGIN failed--compilation aborted. 2012/10/18 12:31:07 [alert] 9620#0: perl_parse() failed: 2 This is the version of nginx I'm running: root@server:~# yum info nginx Loaded plugins: fastestmirror, presto Loading mirror speeds from cached hostfile * base: ftp.udc.es * epel: mirror.nl.leaseweb.net * extras: ftp.udc.es * updates: ftp.cica.es Installed Packages Name : nginx Arch : x86_64 Version : 1.0.15 Release : 2.el6 [...] Server OS: CentOS release 6.3 (Final)

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  • bootmgr is missing

    - by jean
    I have a Toshiba and it is windows 7 and as soon as i turn my computer on it says bootmgr is missing. the only thing i can get into is the setup menu. does anyone know what might be wrong because my step brother thinks that it might be that everything was erased off my hard drive. the last thing he did when he used it was the toshiba updates and restarted the computer. so if any one knows what might be wrong or how i can get my computer up and running please let me know.

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  • Migrating from Apache2 to Lighttpd creating errors in PHP/mySQL?

    - by Jean-Philippe Murray
    Ok, I've been using basics ubuntu LAMP setups for years now, and I wanted to give lighttpd a try. My LAMP setup run in a virtual machine with scripts running just fine. So I created a new virtual machine, starting with a fresh install of ubuntu and made my setups. On this new VM, lighttpd + php works just fine. (Or at least it seems...) Problem occurs when I take the scripts from my LAMP setup and upload them to the new VM. I'm getting : Warning: mysql_real_escape_string(): Access denied for user 'www-data'@'localhost' (using password: NO) My lighttpd setup is configured as php-cgi but not my apache2 setup. Could this be the source of the problem? I think that scripts would be independent of the server configuration, so I doubt it. Also, I know that my DB connexion informations are good (as I can log in via phpmyadmin perfectly). I'm in the dark here, any pointers ? Thanks,

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  • I am unable to get the subdomain from the URL in NGINX

    - by Jean-Nicolas Boulay Desjardins
    I am unable to get the subdomain from the URL in NGINX. Here is my config: server { listen 80; server_name ~^(?<appname>)\.example\.com$; rewrite ^ https://$appname.example.com$request_uri? permanent; } When I do: http://bob.example.com/ I am sent to: https://.example.com/ I don't know what I am doing wrong. I am using NGiNX 1.2.7. I have another config for the: http://example.com/ So I have one server block for the domain without the subdomain and the second with the subdomain... This is about the subdomain.

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  • Can't upgrade my Ubuntu server, it gets stuck on openjdk-6-jre-headless

    - by Jean-Nicolas Boulay Desjardins
    I am using Ubuntu Server. When I do: apt-get upgrade it gets stuck on: Setting up openjdk-6-jre-headless (6b20-1.9.7-0ubuntu1) ... Why? And what can I do to stop it? I tried removing it with apt-get... I get this error: E: dpkg was interrupted, you must manually run 'sudo dpkg --configure -a' to correct the problem. So then I tried this: dpkg --purge openjdk-6-jre-headless I got this: dpkg: dependency problems prevent removal of openjdk-6-jre-headless: openjdk-6-jre-lib depends on openjdk-6-jre-headless (>= 6b17). ca-certificates-java depends on openjdk-6-jre-headless (>= 6b16-1.6.1-2) | java6-runtime-headless; however: Package openjdk-6-jre-headless is to be removed. Package java6-runtime-headless is not installed. Package openjdk-6-jre-headless which provides java6-runtime-headless is to be removed. ca-certificates-java depends on openjdk-6-jre-headless (>= 6b16-1.6.1-2) | java6-runtime-headless; however: Package openjdk-6-jre-headless is to be removed. Package java6-runtime-headless is not installed. Package openjdk-6-jre-headless which provides java6-runtime-headless is to be removed. dpkg: error processing openjdk-6-jre-headless (--purge): dependency problems - not removing Errors were encountered while processing: openjdk-6-jre-headless The thing is I think my DB is using it... Not sure... I am using Cassandra with Thrift... Yes, it's getting a bit more complex... # dpkg --configure -a I get: dpkg: dependency problems prevent configuration of openjdk-6-jre: openjdk-6-jre depends on openjdk-6-jre-headless (>= 6b20-1.9.7-0ubuntu1); however: Package openjdk-6-jre-headless is not configured yet. dpkg: error processing openjdk-6-jre (--configure): dependency problems - leaving unconfigured Processing triggers for libc-bin ... ldconfig deferred processing now taking place dpkg: dependency problems prevent configuration of libaccess-bridge-java: libaccess-bridge-java depends on default-jre | openjdk-6-jre | sun-java6-jre; however: Package default-jre is not installed. Package openjdk-6-jre is not configured yet. Package sun-java6-jre is not installed. dpkg: error processing libaccess-bridge-java (--configure): dependency problems - leaving unconfigured dpkg: dependency problems prevent configuration of icedtea-6-jre-cacao: icedtea-6-jre-cacao depends on openjdk-6-jre-headless (= 6b20-1.9.7-0ubuntu1); however: Package openjdk-6-jre-headless is not configured yet. dpkg: error processing icedtea-6-jre-cacao (--configure): dependency problems - leaving unconfigured dpkg: dependency problems prevent configuration of libaccess-bridge-java-jni: libaccess-bridge-java-jni depends on libaccess-bridge-java (>= 1.26.2-5); however: Package libaccess-bridge-java is not configured yet. dpkg: error processing libaccess-bridge-java-jni (--configure): dependency problems - leaving unconfigured Errors were encountered while processing: openjdk-6-jre libaccess-bridge-java icedtea-6-jre-cacao libaccess-bridge-java-jni Thanks again for any help.

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  • Existing connexion on Apache and mod_proxy_balancer don't fail over second JBoss node

    - by Jean-Rémy Revy
    I have a Jboss farm, load balanced by Apache HTTP + mod_proxy_balancer and mod_proxy_ajp, with the following configuration : <VirtualHost *:80> ServerName web-gui-acceptance.myorg.com ServerAlias web-gui-acceptance ProxyRequests Off ProxyPass /web-gui balancer://jbosscluster/web-gui stickysession=JSESSIONID nofailover=On ProxyPassReverse /web-gui http://srvlnx01.myorg.com:8080/web-gui ProxyPassReverse /web-gui http://srvlnx02.myorg.com:8080/web-gui <Proxy *> AuthType Kerberos [...] </Proxy> <Proxy balancer://jbosscluster> BalancerMember ajp://srvlnx01.myorg.com:8009 route=SRVLNX01_node1 BalancerMember ajp://srvlnx01.myorg.com:8009 route=SRVLNX02_node1 ProxySet lbmethod=byrequests </Proxy> </VirtualHost> When the first JBoss node fail (the hosting VM is down), my existing connexions don't fail over the second node ... the fist route is keeped (in table / .shm ?) and that provide me 503 errors. Can someone tell me what I missed ?

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  • Errors related to python version added to error log when I start apache2

    - by Jean-Nicolas Boulay Desjardins
    When I start apache I am getting those errors: [Tue Jun 14 02:28:58 2011] [error] python_init: Python version mismatch, expected '2.6.5', found '2.6.6'. [Tue Jun 14 02:28:58 2011] [error] python_init: Python executable found '/usr/bin/python'. [Tue Jun 14 02:28:58 2011] [error] python_init: Python path being used '/usr/lib/python2.6/:/usr/lib/python2.6/plat-linux2:/usr/lib/python2.6/lib-tk:/usr/lib/python2.6/lib-old:/usr/lib/python2.6/lib-dynload'. [Tue Jun 14 02:28:58 2011] [notice] mod_python: Creating 8 session mutexes based on 150 max processes and 0 max threads. [Tue Jun 14 02:28:58 2011] [notice] mod_python: using mutex_directory /tmp [Tue Jun 14 02:28:58 2011] [notice] Apache/2.2.16 (Ubuntu) PHP/5.3.3-1ubuntu9.5 with Suhosin-Patch mod_python/3.3.1 Python/2.6.6 configured -- resuming normal operations I am using Ubuntu Server... Thanks in advance for any help.

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  • How can I make a command sent through ssh die if the ssh connection is killed?

    - by Jean-Francois Chevrette
    When using SSH to send a command to a remote server, if the SSH connection dies the process keeps running. Are there any ways to have it kill the child processes if the SSH connection ends? Example: root@local:~# ssh root@server sleep 100 & [2] 15762 root@local:~# kill 15762 [2]+ Stopped ssh root@server sleep 100 After running the above, the sleep command is still running on the remote host. Any ideas?

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  • How do I run a stable Windows XP kvm guest on Ubuntu 10.04?

    - by Jean-Paul Calderone
    I have three Windows XP guests running on a recently upgraded 64-bit Ubuntu 10.04 system. Occasionally (on the order of once every few days), one of the guests will become non-responsive and the kvm process on the host which is running that guest will start consuming 100% CPU. It will continue to do so until it is killed. When restarted, it will be fine for a while, and then the issue repeats. The kvm command line used to run all three guests is this: /usr/bin/kvm -S -M pc-0.12 -enable-kvm -m 1024 -smp 1 -name bigdog21vmxp1 \ -uuid ea47ff84-125b-16f7-9a4d-a6d0d8bab46a \ -chardev socket,id=monitor,path=/var/lib/libvirt/qemu/bigdog21vmxp1.monitor,server,nowait \ -monitor chardev:monitor \ -localtime \ -boot c \ -drive file=/var/lib/libvirt/images/windowsxp-1.qcow2,if=ide,index=0,boot=on,format=qcow2 \ -net nic,macaddr=54:52:00:02:06:0e,vlan=0,name=nic.0 \ -net tap,fd=58,vlan=0,name=tap.0 \ -chardev pty,id=serial0 \ -serial chardev:serial0 \ -parallel none \ -usb \ -usbdevice tablet \ -vnc 127.0.0.1:1 \ -k en-us \ -vga cirrus \ -soundhw es1370 Why do the systems misbehave this way sometimes? And what configuration can I change in order to fix it? Or, if the problem is due to a bug in kvm, what is the process for isolating a kvm failure so that the developers have a chance of fixing it?

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  • How to convert a raw disk image to a copy-on-write image based on another image for use with kvm and

    - by Jean-Paul Calderone
    I have a virtual Windows machine running on kvm. Presently it has a 90GB raw disk image. I would like to clone this VM without having to keep two copies of the 90GB raw disk image around. It seems like a good approach for doing this is to make two new qcow or qcow2 images based on the original. First I converted the raw image to a qcow2 image: qemu-img convert -O qcow2 basewindowsxp.img basewindowsxp.qcow2 Then I tried creating a new image backed by this: qemu-img create -F qcow2 -f qcow2 -b `pwd`/basewindowsxp.qcow2 windowsxp-1.qcow2 Then I used virt-manager to point the original VM at windowsxp-1.qcow2. However, when I try to start up the VM in this new configuration, virt-manager reports an error: Traceback (most recent call last): File "/usr/share/virt-manager/virtManager/engine.py", line 588, in run_domain vm.startup() File "/usr/share/virt-manager/virtManager/domain.py", line 150, in startup self._backend.create() File "/usr/lib/python2.6/dist-packages/libvirt.py", line 300, in create if ret == -1: raise libvirtError ('virDomainCreate() failed', dom=self) libvirtError: internal error unable to start guest: qemu: could not open disk image /var/lib/libvirt/images/windowsxp-1.qcow2 The error suggests that the filename was misspecified or that the filesystem permissions are too restrictive, but neither of these is the case: $ ls -l /var/lib/libvirt/images/windowsxp-1.qcow2 -rwxrwxrwx 1 root root 262144 2010-05-27 08:32 /var/lib/libvirt/images/windowsxp-1.qcow2 Why won't virt-manager start this vm?

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