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  • Add new element in existing object

    - by user3094292
    I am using node.js. I have to add new elements in the object before to send a response to client. user.getMatch(req.user, function(err, match){ for( k=0; k<match.length; k++){ var userId = { id : match[k].match_id }; var user = new User(userId); console.log('k: ' + k); user.getUserInfo(function(err2, info){ console.log('k here: ' + k); if(info){ match[k].foo = info[0].foo; } }); } var response = { data : match }; res.json(response); }); I want to add an element "foo" from user.getUserInfo to the object "match" that was returned by user.getMatch. And then send all the data as response to the client. But it got an error because "k" inside of user.getUserInfo is not equal to the "k" outside. I do not know why the both "k" are not equal. And how will I send a response to the client after performing the loop. Thanks for your help!

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  • jquery, attaching objects (instead of string attribute) to an element

    - by binaryLV
    Hi! I'm trying to build DOM with jQuery and fill it with data that is received with AJAX (data type = json). I'd like to also store this data as an object, attached to a specific DOM element. Does jQuery provide any method for this? The reason I want to do it is because only part of data is initially displayed; other data might be needed later, depending on user actions. I tried using attr(), but it stores a string "[object Object]" instead of an actual object: var div = $('<div/>'); div.attr('foo', {bar: 'foobar'}); alert(div.attr('foo')); // gives "[object Object]" alert(typeof div.attr('foo')); // gives "string" alert(div.attr('foo').bar); // gives "undefined" Another way to do this would be by "bypassing" jQuery (div[0].foo = {bar: 'foobar'};), though this seems to be a "dirty workaround", if jQuery happens to already support attaching objects. Any ideas? Thanks in advance!

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  • Choose 'better' or more familiar technologies for a new project?

    - by John
    I am looking to start work on a brand-new project, something I've been thinking about for a while as my first independent sellable project. It's broadly speaking a web-based service application, and my first choice, server-language is quite easy... I know Java pretty well from working on Java web-apps in the past. However my experience doing web-apps involved JSP, Servlets and JSTL... I know the ideas behind newer technologies like Hibernate/Spring but have never used them. So we wrote our own DAOs, handled AJAX by writing special mini-JSP pages that generated XML/JSON pages, etc. I'm not hugely into the idea that Spring/Hibernate are the 'only' or 'right' way to do any Java web-project, but they are widely used. On the other hand, not only would trying to learn these increase initial development time, but I'd be using my learning attempts to build a production system. I remember one of Joel's early articles said (I'll paraphrase since I can't find it) "regardless what's cool, always use the technologies that the lead developer (or dev team?) knows best" I wondered what people thought about that? ps: should this be CW?

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  • Codeigniter : database configuration

    - by nppCods
    I am beginner for CI so don’t have good knowledge. My problem is: I am not using any database. All the records are fetched from JSON. Therefore I don’t think I need to configure database… As said by CI, it doesn’t necessarily ask for database. So my database.php configuration is : $active_group = ‘default’; $active_record = FALSE; $db[‘default’][‘hostname’] = ‘’; $db[‘default’][‘username’] = ‘’; $db[‘default’][‘password’] = ‘’; $db[‘default’][‘database’] = ‘’; $db[‘default’][‘dbdriver’] = ‘mysql’; $db[‘default’][‘dbprefix’] = ‘’; $db[‘default’][‘pconnect’] = TRUE; $db[‘default’][‘db_debug’] = TRUE; $db[‘default’][‘cache_on’] = FALSE; $db[‘default’][‘cachedir’] = ‘’; $db[‘default’][‘char_set’] = ‘utf8’; $db[‘default’][‘dbcollat’] = ‘utf8_general_ci’; $db[‘default’][‘swap_pre’] = ‘’; $db[‘default’][‘autoinit’] = TRUE; $db[‘default’][‘stricton’] = FALSE; It works in my local system but doesn’t work in live server. I am so surprised. Then I provided hostname, username, password and dbdriver, it works. My question is that, is that necessary to provide all the details if I am not using database? Thank you for your suggestion.

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  • How to use Jquery UI in my Custom Function? (Autocomplete)

    - by bakazero
    I want to create a function to simplify configuration of jQuery UI AutoComplete. Here is my function code: (function($) { $.fn.myAutocomplete = function() { var cache = {}; var dataUrl = args.dataUrl; var dataSend = args.dataItem; $.autocomplete({ source: function(request, response) { if (cache.term == request.term && cache.content) { response(cache.content); } if (new RegExp(cache.term).test(request.term) && cache.content && cache.content.length < 13) { var matcher = new RegExp($.ui.autocomplete.escapeRegex(request.term), "i"); response($.grep(cache.content, function(value) { return matcher.test(value.value) })); } $.ajax({ url: dataUrl, dataType: "json", type: "POST", data: dataSend, success: function(data) { cache.term = request.term; cache.content = data; response(data); } }); }, minLength: 2, }); } }) (jQuery); but when I'm using this function like: $("input#tag").myAutocomplete({ dataUrl: "/auto_complete/tag", dataSend: { term: request.term, category: $("input#category").val() } }); It's give me an error: Uncaught ReferenceError: request is not defined

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  • Compile Apache 2.4.3 on Centos 6.2 (64bit)

    - by RiseCakoPlusplus
    I attempt to compile Apache 2.4.3 with apr-1.4.6 and apr-util-1.5.1 on Centos 6.2 (64bit). ./configure --build=x86_64-unknown-linux-gnu --host=x86_64-unknown-linux-gnu --target=x86_64-redhat-linux-gnu --program-prefix= --prefix=/usr --exec-prefix=/usr --bindir=/usr/bin --sbindir=/usr/sbin --sysconfdir=/etc --datadir=/usr/share --includedir=/usr/include --libdir=/usr/lib64 --libexecdir=/usr/libexec --localstatedir=/var --sharedstatedir=/var/lib --mandir=/usr/share/man --infodir=/usr/share/info --cache-file=../config.cache --with-libdir=lib64 --with-config-file-path=/etc --with-config-file-scan-dir=/etc/php.d --disable-debug --with-pic --disable-rpath --without-pear --with-bz2 --with-exec-dir=/usr/bin --with-freetype-dir=/usr --with-png-dir=/usr --with-xpm-dir=/usr --enable-gd-native-ttf --with-t1lib=/usr --without-gdbm --with-gettext --with-gmp --with-iconv --with-jpeg-dir=/usr --with-openssl --with-zlib --with-layout=GNU --enable-exif --enable-ftp --enable-magic-quotes --enable-sockets --with-kerberos --enable-ucd-snmp-hack --enable-shmop --enable-calendar --with-libxml-dir=/usr --enable-xml --with-system-tzdata --with-mhash --with-apxs2=/usr/sbin/apxs --libdir=/usr/lib64/php --enable-pdo=shared --with-mysql=shared,/usr --with-mysqli=shared,/usr/lib64/mysql/mysql_config --with-pdo-mysql=shared,/usr/lib64/mysql/mysql_config --without-pdo-sqlite --without-gd --disable-dom --disable-dba --without-unixODBC --disable-xmlreader --disable-xmlwriter --without-sqlite3 --disable-phar --disable-fileinfo --disable-json --without-pspell --disable-wddx --without-curl --disable-posix --disable-sysvmsg --disable-sysvshm --disable-sysvsem ./configure --with-included-apr --with-included-apr-util and when I issue make this happen: /root/httpd-2.4.3/srclib/apr/libtool: line 5989: cd: yes/lib: No such file or directory libtool: link: cannot determine absolute directory name of yes/lib' make[3]: *** [libaprutil-1.la] Error 1 make[3]: Leaving directory/root/httpd-2.4.3/srclib/apr-util' make[2]: * [all-recursive] Error 1 make[2]: Leaving directory /root/httpd-2.4.3/srclib/apr-util' make[1]: *** [all-recursive] Error 1 make[1]: Leaving directory/root/httpd-2.4.3/srclib' make: * [all-recursive] Error 1 anything I missed?

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  • Yii 'limit' on related model's scope

    - by pethee
    I have a model called Guesses that has_many Comments. I'm making eager queries to this to then pass on as JSON as response to an API call. The relations are obviously set between the two models and they are correct(one2many <= belongs2) I added a scope to Comments called 'api' like this: public function scopes() { return array( 'api' => array( 'select' => 'id, comment, date', 'limit'=>3, 'order'=>'date DESC', 'together'=>true, ), ); } And I'm running the following one-liner query: $data = Guesses::model()->with('comments:api')->findAll(); The issue here is that when calling the 'api' scope using a with('relation'), the limit property simply doesn't apply. I added the 'together'=true there for another type of scope, plus I hear it might help. It doesn't make a difference. I don't need all the comments of all Guesses. I want the top 3 (or 5). I am also trying to keep the one-liner call intact and simple, manage everything through scopes, relations and parameterized functions so that the API call itself is clean and simple. Any advice?

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  • HTML5 card game [closed]

    - by ChrisCa
    I created a card game in silverlight a year or so ago in order to learn a bit about Silverlight. I am now wanting to make a HTML5 version of the game in an effort to learn a little bit more about that. I am thinking I'd like to take advantage of stuff like Knockout.js and WebSockets and the canvas element. Now what I'm confused about is how to lay out the cards on the screen. With Silverlight I was able to make a "Hand" control, which was made up of two sub controls - the cards the player has in their hand and the ones they have on the table. And they in turn were made up of Card controls. Now I don't believe there is the concept on a User Control in javascript. So I am possibly thinking about this in entirely the wrong way. So my question is - how could I lay out some cards on the table and perhaps make reuse of something for each player? I have a client side JSON object called game, which contains an array of players. Each player has a hand which is made up of an array of in-hand cards and on-table cards. Ideally I would like to bind these to something using Knockout.js - but I don't know what I could bind to. Would I simply position images (of cards) on a canvas? Is there a way to make some kind of Hand object that each player could have and that I could bind to? Any advice? Or sample code you've seen elsewhere?

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  • Sending a file to an API - C#

    - by alex
    I'm trying to use an API which sends a fax. I have a PHP example below: (I will be using C# however) <?php //This is example code to send a FAX from the command line using the Simwood API //It is illustrative only and should not be used without the addition of error checking etc. $ch = curl_init("http://url-to-api-endpoint"); $fax_variables=array( 'user'=> 'test', 'password'=> 'test', 'sendat' => '2050-01-01 01:00', 'priority'=> 10, 'output'=> 'json', 'to[0]' => '44123456789', 'to[1]' => '44123456780', 'file[0]'=>'@/tmp/myfirstfile.pdf', 'file[1]' => '@/tmp/mysecondfile.pdf' ); print_r($fax_variables); curl_setopt ($ch, CURLOPT_POST, 1); curl_setopt ($ch, CURLOPT_POSTFIELDS, $fax_variables); curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1); $result=curl_exec ($ch); $info = curl_getinfo($ch); $result['http_code']; curl_close ($ch); print_r($result); ?> My question is - in the C# world, how would I achieve the same result? Do i need to build a post request? Ideally, i was trying to do this using REST - and constructing a URL, and using HttpWebRequest (GET) to call the API

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  • Storing data in XML or MongoDB

    - by user766473
    Here is my usecase. 1.Have some data, which I am storing now in the xml files. The data that I am storing is not persistent i.e I would be deleting the user data once the user logs out. 2.My server communicates with the client using the XML requests and responses. So initially we decided, since we are sending the XML as response, lets store it in XML so that conversion from database to XML format time is saved. 3.Client will request for XML based on some filter conditions. So will have to use XQUERY. 4.Maximum of 100 entries will be there in an XML, atleast as of now. Now I would like to hear some advice on whether I should use XML or mongodb. My Concerns : 1. How good is it to store temporary data in mongodb and delete/take backup once done with session 2. Conversion from mongodb json format to XML. 3. Handling the changes in the schema design. Cant use any other DB than mongodb. As some persistent operation or still done on mongodb. Thanks in advance.

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  • adding uri escaped xml as queryparam

    - by aguilarsoto
    Hello and thanks for any support. So I have an API that is expecting an escaped xml as part of the query params. so I tried a couple of things. <Set> <QueryParams> <QueryParam name="xml">%3CcreateSession%3E%3CapiKey+type%3D%22integer%22%3123123123123123123%3C%2FapiKey%3E%3C%2FcreateSession%3E</QueryParam> </QueryParams> </Set> this actually gets extra escaped and we end up with an invalid xml <Set> <QueryParams> <QueryParam name="xml"> <createSession><apiKey type=\"integer\">123123123123</apiKey> </createSession> </QueryParam> </QueryParams> </Set> this one is not even saved. <Payload variablePrefix="#" variableSuffix="#" contentType="application/json"> { 'xml': '<createSession><apiKey type=\"integer\">123123123123</apiKey></createSession>'} </Payload> this is not helping me either. so what would be the best way to add an xml to the params without getting extra escaped or escaped only once

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  • JQM Nested Popups

    - by mcottingham
    I am having a hard time with the new Alpha release of JQM not showing nested popups. For example, I am displaying a popup form that the user is supposed to fill out, if the server side validation fails, I want to display an error popup. I am finding that the error popup is not being shown. I suspect that it is being shown below the original popup. function bindSongWriterInvite() { // Bind the click event of the invite button $("#invite-songwriter").click(function () { $("#songwriter-invite-popup").popup("open"); }); // Bind the invitation click event of the invite modal $("#songwriter-invite-invite").click(function () { if ($('#songwriter-invite').valid()) { $('#songwriter-invite-popup').popup('close'); $.ajax({ type: 'POST', async: true, url: '/songwriter/jsoncreate', data: $('#songwriter-invite').serialize() + "&songName=" + $("#Song_Title").val(), success: function (response) { if (response.state != "success") { alert("Should be showing error dialog"); mobileBindErrorDialog(response.message); } else { mobileBindErrorDialog("Success!"); } }, failure: function () { mobileBindErrorDialog("Failure!"); }, dataType: 'json' }); } }); // Bind the cancel click event of the invite modal $("#songwriter-invite-cancel").click(function () { $("#songwriter-invite-popup").popup("close"); }); } function mobileBindErrorDialog(errorMessage) { // Close all open popups. This is a work around as the JQM Alpha does not // open new popups in front of all other popups. var error = $("<div></div>").append("<p>" + errorMessage + "</p>") .popup(); $(error).popup("open"); } So, you can see that I attempt to show the error dialog regardless of whether the ajax post succeeds or fails. It just never shows up. Anyone have any thoughts? Mike

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  • How do you get and set a class property across multiple functions in Objective-C?

    - by editor
    Following up on this question about sharing objects between classes, I now need to figure out how to share the objects across various functions in a class. First, the setup: In my App Delegate I load menu information from JSON into a NSMutableDictionary and message that through to a view controller using a function called initWithData. I need to use this dictionary to populate a new Table View, which has methods like numberOfRowsInSection and cellForRowAtIndexPath. I'd like to use the dictionary count to return numberOfRowsInSection and info in the dictionary to populate each cell. Unfortunately, my code never gets beyond the init stage and the dictionary is empty so numberOfRowsInSection always returns zero. I thought I could create a class property, synthesize it and then set it. But it doesn't seem to want to retain the property's value. What am I doing wrong here? In the header .h: @interface FirstViewController:UIViewController <UITableViewDataSource, UITableViewDelegate, UITabBarControllerDelegate> { NSMutableDictionary *sectorDictionary; NSInteger sectorCount; } @property (nonatomic, retain) NSMutableDictionary *sectorDictionary; - (id)initWithData:(NSMutableDictionary*)data; @end in the implementation .m: - (id) testFunction:(NSMutableDictionary*)dictionary { NSLog(@"Count #1: %d", [dictionary count]); return nil; } - (id)initWithData:(NSMutableDictionary *)data { if (!(self=[super init])) { return nil; } [self testFunction:data]; // this is where I'd like to set a retained property self.sectorDictionary = data; return nil; } - (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section { NSLog(@"Count #2: %d", [self.sectorDictionary count]); return [self.sectorDictionary count]; } Output from NSLog: 2010-05-04 23:00:06.255 JSONApp[15890:207] Count #1: 9 2010-05-04 23:00:06.259 JSONApp[15890:207] Count #2: 0

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  • How can I call multiple nutrient information from ESHA Research API? (apid.esha.com)

    - by user1833044
    I want to call ESHA Research nutrient REST API. I cannot seem to figure out how to call multiple nutrients using ESHA REST API. So far I am calling the following and only able to retrieve the calories, or protein, or another type of nutrient information. So I was hoping someone had experience in retrieving all the nutrient information with one call. Is this possible? This is how I call to retrieve the TWIX nutrient http://api.esha.com/analysis?apikey=xxxx&fo=urn:uuid:81d268ac-f1dc-4991-98c1-1b4d3a5006da (returns calories, please note the api key is not xxxx but instead a key generated from Esha once you sign up as developer) The return is JSON format. If I want to call fat it would be the following http://api.esha.com/analysis?apikey=xxxx&fo=urn:uuid:81d268ac-f1dc-4991-98c1-1b4d3a5006da&n=urn:uuid:589294dc-3dcc-4b64-be06-c07e7f65c4bd How can I make a call once and get a return of all the nutrients (so Fat, Calories, Carbs, Vitamins, etc..) for a particular food ID? I have researched and looked at this for a while and cannot seem to find the answer. Thanks in advance for your help.

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  • jquery.clone() and ASP.NET Forms

    - by Jeff
    So I have a page where I would like to be able to add multiple, dynamic users to a record in a database. Here's the rough start page: <div id="records"> <div id="userRecord"> Name: <asp:TextBox runat="server" ID="objNameTextBox"></asp:TextBox> <br /> Phone Number: <asp:TextBox runat="server" ID="objPhoneNumberTextBox"></asp:TextBox> <br /> </div> </div> And the jquery: $(function () { $(".button").button().click(function (event) { addnew(); event.preventDefault(); }); }) function addnew() { $('#userRecord').clone().appendTo('#records'); } So my question is what do I use within ASP.NET to be able to poll all of the data in the form and add a unique record for each #userRecord div within the #records div? Yes - I should change the userRecord to a class - I will deal with that. This is just simple testing here. Should I look in JSON for this type of function? I'm not familiar with it but could figure it out if that is indeed my best option. Thanks for the guidance!

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  • 2-Bay External HDD Enclosure in JBOD mode fails to detect both drives (Linux & Windows)

    - by mgc8888
    I recently purchased a couple of USB 3.0 External HDD Enclosures to use for storage and backup; the idea was to have one act as backup to the other, with 4 x 3TB drives in total. However, the second drive in each is not accessible in either Linux nor Windows, and I could not determine the reason. 1. Situation The two enclosures are slightly different (couldn't find them in stock at the same time) yet from many little details appear to be the same Chinese base design with a tweaked outer shell. The models are: Sharkoon 2-Bay RAID Box Fantec MR-35DU3 The drives are Seagate 3TB Barracuda ST33000651AS, firmware CC44, all identical. From reading manuals and online sources, I determined that JBOD would be the optimal setup for my needs -- addressing the two drives separately in each enclosure would be important, making it easy to swap drives and mix&match them if needed; all the other modes implied the controller doing a combination of the drives. The software used was Debian GNU/Linux - testing/wheezy - kernel 2.6.39-2 and Windows 7 Ultimate. 2. Description of the problem Now, here comes the problem: every time I connect either of the enclosures to a PC using the supplied cable (tried a different one as well), only the HDD in the top bay is readable, the one below is detected yet errors out in various ways. According to the manuals, it should not happen: in JBOD, the system should be able to "see" two separate drives upon connection. This happens with both enclosures and any combination of HDDs (i.e. if I swap them, the same thing happens), so the HDDs are good and I think so are the enclosures (two different companies making similar products that failed in an identical fashion would be very unlikely). The top HDD can be used fine every time, I actually tried a speed test from Linux and got about 150MiB/s reads, so all is working as it should; the one below refuses to work every time. So the failure is consistent. To make sure this was not some obscure Linux bug, I tried the same under Windows 7, and the system also only created one drive letter for a drive of 3TB size (so it was only seeing one instead of both). Placing an older, known good, 2TB drive in the top bay made that the one recognised, so we have the same issue under Windows as well. Log entries under Linux (tested here with a 3TB and a 2TB drive so I could differentiate them; either one works in the top enclosure, in the test setup the 3TB one is on top). You can see them being detected, the top one is ok, but for the bottom one only errors: Jul 19 23:28:15 media kernel: [260150.582436] usb 6-1: New USB device found, idVendor=1ca1, idProduct=18ae Jul 19 23:28:15 media kernel: [260150.582440] usb 6-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 Jul 19 23:28:15 media kernel: [260150.582442] usb 6-1: Product: Usb Sata Bridge Jul 19 23:28:15 media kernel: [260150.582444] usb 6-1: Manufacturer: SYMWAVE Jul 19 23:28:15 media kernel: [260150.582446] usb 6-1: SerialNumber: 39584B304C4E3441 Jul 19 23:28:15 media kernel: [260150.870412] scsi11 : usb-storage 6-1:1.0 Jul 19 23:28:16 media kernel: [260151.882087] scsi 11:0:0:0: Direct-Access SYMWAVE ST33000651AS CC44 PQ: 0 ANSI: 4 Jul 19 23:28:16 media kernel: [260151.882242] scsi 11:0:0:1: Direct-Access SYMWAVE ST32000641AS CC12 PQ: 0 ANSI: 4 Jul 19 23:28:16 media kernel: [260151.882677] sd 11:0:0:0: Attached scsi generic sg2 type 0 Jul 19 23:28:16 media kernel: [260151.882774] sd 11:0:0:0: [sdb] Very big device. Trying to use READ CAPACITY(16). Jul 19 23:28:16 media kernel: [260151.882857] sd 11:0:0:1: Attached scsi generic sg3 type 0 Jul 19 23:28:16 media kernel: [260151.882893] sd 11:0:0:0: [sdb] 5860533168 512-byte logical blocks: (3.00 TB/2.72 TiB) Jul 19 23:28:16 media kernel: [260151.883085] xhci_hcd 0000:03:00.0: WARN: Stalled endpoint Jul 19 23:28:16 media kernel: [260151.883582] sd 11:0:0:0: [sdb] Write Protect is off Jul 19 23:28:16 media kernel: [260151.883961] sd 11:0:0:1: [sdc] 3907029168 512-byte logical blocks: (2.00 TB/1.81 TiB) Jul 19 23:28:16 media kernel: [260151.884145] xhci_hcd 0000:03:00.0: WARN: Stalled endpoint Jul 19 23:28:16 media kernel: [260151.884570] sd 11:0:0:1: [sdc] Write Protect is off Jul 19 23:28:16 media kernel: [260151.884855] sd 11:0:0:0: [sdb] Very big device. Trying to use READ CAPACITY(16). Jul 19 23:28:16 media kernel: [260151.885286] xhci_hcd 0000:03:00.0: WARN: Stalled endpoint Jul 19 23:28:16 media kernel: [260151.885807] xhci_hcd 0000:03:00.0: WARN: Stalled endpoint Jul 19 23:28:16 media kernel: [260151.909595] xhci_hcd 0000:03:00.0: WARN: Stalled endpoint Jul 19 23:28:16 media kernel: [260151.910159] sd 11:0:0:1: [sdc] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE Jul 19 23:28:16 media kernel: [260151.910163] sd 11:0:0:1: [sdc] Sense Key : Illegal Request [current] Jul 19 23:28:16 media kernel: [260151.910167] Info fld=0x0 Jul 19 23:28:16 media kernel: [260151.910169] sd 11:0:0:1: [sdc] Add. Sense: Invalid field in cdb Jul 19 23:28:16 media kernel: [260151.910172] sd 11:0:0:1: [sdc] CDB: Read(10): 28 20 00 00 00 00 00 00 08 00 Jul 19 23:28:16 media kernel: [260151.910182] quiet_error: 2 callbacks suppressed Jul 19 23:28:16 media kernel: [260151.910570] xhci_hcd 0000:03:00.0: WARN: Stalled endpoint Jul 19 23:28:16 media kernel: [260151.911153] sd 11:0:0:1: [sdc] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE Jul 19 23:28:16 media kernel: [260151.911156] sd 11:0:0:1: [sdc] Sense Key : Illegal Request [current] Jul 19 23:28:16 media kernel: [260151.911159] Info fld=0x0 Jul 19 23:28:16 media kernel: [260151.911161] sd 11:0:0:1: [sdc] Add. Sense: Invalid field in cdb Jul 19 23:28:16 media kernel: [260151.911164] sd 11:0:0:1: [sdc] CDB: Read(10): 28 20 00 00 00 00 00 00 08 00 Jul 19 23:28:16 media kernel: [260151.911385] xhci_hcd 0000:03:00.0: WARN: Stalled endpoint Jul 19 23:28:16 media kernel: [260151.911902] sd 11:0:0:1: [sdc] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE Jul 19 23:28:16 media kernel: [260151.911905] sd 11:0:0:1: [sdc] Sense Key : Illegal Request [current] Jul 19 23:28:16 media kernel: [260151.911908] Info fld=0x0 Jul 19 23:28:16 media kernel: [260151.911910] sd 11:0:0:1: [sdc] Add. Sense: Invalid field in cdb Jul 19 23:28:16 media kernel: [260151.911913] sd 11:0:0:1: [sdc] CDB: Read(10): 28 20 00 00 00 00 00 00 08 00 Jul 19 23:28:16 media kernel: [260151.912128] xhci_hcd 0000:03:00.0: WARN: Stalled endpoint Jul 19 23:28:16 media kernel: [260151.912650] sd 11:0:0:1: [sdc] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE Jul 19 23:28:16 media kernel: [260151.912653] sd 11:0:0:1: [sdc] Sense Key : Illegal Request [current] Jul 19 23:28:16 media kernel: [260151.912656] Info fld=0x0 Jul 19 23:28:16 media kernel: [260151.912657] sd 11:0:0:1: [sdc] Add. Sense: Invalid field in cdb Jul 19 23:28:16 media kernel: [260151.912660] sd 11:0:0:1: [sdc] CDB: Read(10): 28 20 00 00 00 00 00 00 08 00 Jul 19 23:28:16 media kernel: [260151.912876] xhci_hcd 0000:03:00.0: WARN: Stalled endpoint Jul 19 23:28:16 media kernel: [260151.913439] sd 11:0:0:1: [sdc] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE Jul 19 23:28:16 media kernel: [260151.913442] sd 11:0:0:1: [sdc] Sense Key : Illegal Request [current] Jul 19 23:28:16 media kernel: [260151.913445] Info fld=0x0 Jul 19 23:28:16 media kernel: [260151.913446] sd 11:0:0:1: [sdc] Add. Sense: Invalid field in cdb Jul 19 23:28:16 media kernel: [260151.913449] sd 11:0:0:1: [sdc] CDB: Read(10): 28 20 00 00 00 00 00 00 08 00 Jul 19 23:28:16 media kernel: [260151.945227] xhci_hcd 0000:03:00.0: WARN: Stalled endpoint Jul 19 23:28:16 media kernel: [260151.945863] sd 11:0:0:1: [sdc] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE Jul 19 23:28:16 media kernel: [260151.945866] sd 11:0:0:1: [sdc] Sense Key : Illegal Request [current] Jul 19 23:28:16 media kernel: [260151.945870] Info fld=0x0 Jul 19 23:28:16 media kernel: [260151.945871] sd 11:0:0:1: [sdc] Add. Sense: Invalid field in cdb Jul 19 23:28:16 media kernel: [260151.945875] sd 11:0:0:1: [sdc] CDB: Read(10): 28 20 00 00 00 00 00 00 08 00 (...) and so on for like 10 seconds until it gives up (...) 3. Question So, my question would be: what is causing this? Am I missing something, should I configure things differently, is this a known limitation? Searching online for more information did not yield any useful results... Thank you in advance for any help!

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  • Unable to start Tomcat6 with HTTPS enabled

    - by ram
    I have the following server.xml settings for my tomcat6 server <!-- COMMENTED <Connector port="8080" maxThreads="150" enableLookups="false" acceptCount="100" scheme="http" redirectPort="8443"/> --> <!-- COMMENTED <Connector port="80" maxThreads="150" enableLookups="false" acceptCount="100" scheme="http" redirectPort="443"/> --> <Connector port="443" maxHttpHeaderSize="8192" maxThreads="150" enableLookups="false" disableUploadTimeout="true" acceptCount="100" scheme="https" secure="true" SSLEnabled="true" SSLCertificateFile="%SSL_CERT%" SSLCertificateKeyFile="%SSL_KEY%" SSLCipherSuite="ALL:!ADH:!kEDH:!SSLv2:!EXPORT40:!EXP:!LOW" compression="on" compressableMimeType="text/html,text/xml,text/plain,application/javascript,application/json,text/javascript"/> Complete server.xml is here but when I try to start the application I get the following error in catalina.*.log file INFO: Initializing Coyote HTTP/1.1 on http-80 Apr 7, 2013 8:38:38 PM org.apache.coyote.http11.Http11AprProtocol init SEVERE: Error initializing endpoint java.lang.Exception: Invalid Server SSL Protocol (error:00000000:lib(0):func(0):reason(0)) at org.apache.tomcat.jni.SSLContext.make(Native Method) at org.apache.tomcat.util.net.AprEndpoint.init(AprEndpoint.java:729) at org.apache.coyote.http11.Http11AprProtocol.init(Http11AprProtocol.java:107) at org.apache.catalina.connector.Connector.initialize(Connector.java:1049) at org.apache.catalina.core.StandardService.initialize(StandardService.java:703) at org.apache.catalina.core.StandardServer.initialize(StandardServer.java:838) at org.apache.catalina.startup.Catalina.load(Catalina.java:538) at org.apache.catalina.startup.Catalina.load(Catalina.java:562) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at org.apache.catalina.startup.Bootstrap.load(Bootstrap.java:261) at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:413) Apr 7, 2013 8:38:38 PM org.apache.catalina.core.StandardService initialize SEVERE: Failed to initialize connector [Connector[HTTP/1.1-443]] LifecycleException: Protocol handler initialization failed: java.lang.Exception: Invalid Server SSL Protocol (error:00000000:lib(0):func(0):reason(0)) at org.apache.catalina.connector.Connector.initialize(Connector.java:1051) at org.apache.catalina.core.StandardService.initialize(StandardService.java:703) at org.apache.catalina.core.StandardServer.initialize(StandardServer.java:838) at org.apache.catalina.startup.Catalina.load(Catalina.java:538) at org.apache.catalina.startup.Catalina.load(Catalina.java:562) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at org.apache.catalina.startup.Bootstrap.load(Bootstrap.java:261) at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:413) I've checked the following things already I have given read permissions for everyone for .crt and .key files I copied server.xml to a different working tomcat6 server and it works there, server.xml from the mentioned working tomcat5 webserver doesn't work here and it fails with the same error Works well with just HTTP enabled explicitly mentioning protocol in the Connector i.e. protocol="org.apache.coyote.http11.Http11AprProtocol" results in the same exception Please help me if I am missing something. Thanks in advance

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  • connect() failed (111: Connection refused) while connecting to upstream

    - by Burning the Codeigniter
    I'm experiencing 502 gateway errors when accessing a PHP file in a directory (http://domain.com/dev/index.php), the logs simply says this: 2011/09/30 23:47:54 [error] 31160#0: *35 connect() failed (111: Connection refused) while connecting to upstream, client: xx.xx.xx.xx, server: domain.com, request: "GET /dev/ HTTP/1.1", upstream: "fastcgi://127.0.0.1:9000", host: "domain.com" I've never experienced this before, how do I do a solution for this type of 502 gateway error? This is the nginx.conf: user www-data; worker_processes 4; pid /var/run/nginx.pid; events { worker_connections 768; # multi_accept on; } http { ## # Basic Settings ## sendfile on; tcp_nopush on; tcp_nodelay on; keepalive_timeout 65; types_hash_max_size 2048; # server_tokens off; # server_names_hash_bucket_size 64; # server_name_in_redirect off; include /etc/nginx/mime.types; default_type application/octet-stream; ## # Logging Settings ## access_log /var/log/nginx/access.log; error_log /var/log/nginx/error.log; ## # Gzip Settings ## gzip on; gzip_disable "msie6"; # gzip_vary on; # gzip_proxied any; # gzip_comp_level 6; # gzip_buffers 16 8k; # gzip_http_version 1.1; # gzip_types text/plain text/css application/json application/x-javascript text/xml application/xml application/xml+rss text/javascript; ## # Virtual Host Configs ## include /etc/nginx/conf.d/*.conf; include /etc/nginx/sites-enabled/*; } #mail { # # See sample authentication script at: # # http://wiki.nginx.org/ImapAuthenticateWithApachePhpScript # # # auth_http localhost/auth.php; # # pop3_capabilities "TOP" "USER"; # # imap_capabilities "IMAP4rev1" "UIDPLUS"; # # server { # listen localhost:110; # protocol pop3; # proxy on; # } # # server { # listen localhost:143; # protocol imap; # proxy on; # } #}

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  • Monitoring slow nginx/unicorn requests

    - by injekt
    I'm currently using Nginx to proxy requests to a Unicorn server running a Sinatra application. The application only has a couple of routes defined, those of which make fairly simple (non costly) queries to a PostgreSQL database, and finally return data in JSON format, these services are being monitored by God. I'm currently experiencing extremely slow response times from this application server. I have another two Unicorn servers being proxied via Nginx, and these are responding perfectly fine, so I think I can rule out any wrong doing from Nginx. Here is my God configuration: # God configuration APP_ROOT = File.expand_path '../', File.dirname(__FILE__) God.watch do |w| w.name = "app_name" w.interval = 30.seconds # default w.start = "cd #{APP_ROOT} && unicorn -c #{APP_ROOT}/config/unicorn.rb -D" # -QUIT = graceful shutdown, waits for workers to finish their current request before finishing w.stop = "kill -QUIT `cat #{APP_ROOT}/tmp/unicorn.pid`" w.restart = "kill -USR2 `cat #{APP_ROOT}/tmp/unicorn.pid`" w.start_grace = 10.seconds w.restart_grace = 10.seconds w.pid_file = "#{APP_ROOT}/tmp/unicorn.pid" # User under which to run the process w.uid = 'web' w.gid = 'web' # Cleanup the pid file (this is needed for processes running as a daemon) w.behavior(:clean_pid_file) # Conditions under which to start the process w.start_if do |start| start.condition(:process_running) do |c| c.interval = 5.seconds c.running = false end end # Conditions under which to restart the process w.restart_if do |restart| restart.condition(:memory_usage) do |c| c.above = 150.megabytes c.times = [3, 5] # 3 out of 5 intervals end restart.condition(:cpu_usage) do |c| c.above = 50.percent c.times = 5 end end w.lifecycle do |on| on.condition(:flapping) do |c| c.to_state = [:start, :restart] c.times = 5 c.within = 5.minute c.transition = :unmonitored c.retry_in = 10.minutes c.retry_times = 5 c.retry_within = 2.hours end end end Here is my Unicorn configuration: # Unicorn configuration file APP_ROOT = File.expand_path '../', File.dirname(__FILE__) worker_processes 8 preload_app true pid "#{APP_ROOT}/tmp/unicorn.pid" listen 8001 stderr_path "#{APP_ROOT}/log/unicorn.stderr.log" stdout_path "#{APP_ROOT}/log/unicorn.stdout.log" before_fork do |server, worker| old_pid = "#{APP_ROOT}/tmp/unicorn.pid.oldbin" if File.exists?(old_pid) && server.pid != old_pid begin Process.kill("QUIT", File.read(old_pid).to_i) rescue Errno::ENOENT, Errno::ESRCH # someone else did our job for us end end end I have checked God status logs but it appears CPU and Memory Usage are never out of bounds. I also have something to kill high memory workers, which can be found on the GitHub blog page here. When running a tail -f on the Unicorn logs I see some requests, but they're far and few between, when I was at around 60-100 a second before this trouble seemed to have arrived. This log also shows workers being reaped and started as expected. So my question is, how would I go about debugging this? What are the next steps I should be taking? I'm extremely baffled that the server will sometimes respond quickly, but at others time it's very slow, for long periods of time (which may or may not be peak traffic times). Any advice is much appreciated.

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  • enabling gzip with htaccess...why is it hit or miss?

    - by adam-asdf
    I have shared hosting through Justhost. I use the HTML5 Boilerplate .htaccess (have tried other methods from here and there without luck) the compression part is as follows: <IfModule mod_deflate.c> # Force deflate for mangled headers developer.yahoo.com/blogs/ydn/posts/2010/12/pushing-beyond-gzipping/ <IfModule mod_setenvif.c> <IfModule mod_headers.c> SetEnvIfNoCase ^(Accept-EncodXng|X-cept-Encoding|X{15}|~{15}|-{15})$ ^((gzip|deflate)\s*,?\s*)+|[X~-]{4,13}$ HAVE_Accept-Encoding RequestHeader append Accept-Encoding "gzip,deflate" env=HAVE_Accept-Encoding </IfModule> </IfModule> # Compress all output labeled with one of the following MIME-types <IfModule mod_filter.c> AddOutputFilterByType DEFLATE application/atom+xml \ application/javascript \ application/json \ application/rss+xml \ application/vnd.ms-fontobject \ application/x-font-ttf \ application/xhtml+xml \ application/xml \ font/opentype \ image/svg+xml \ image/x-icon \ text/css \ text/html \ text/plain \ text/x-component \ text/xml </IfModule> </IfModule> However, it isn't working—at least I don't think—My home page (html) isn't compressing, the CSS and some of the JS aren't gzipped. It is failing on HTML, CSS and JS. However, some things are (or were, who knows what it will look like when you check) gzipped. My domain is http://adaminfinitum.com/ What is weird is that the (Google) PageSpeed browser extension for Firefox (whatever the current version is [Nov. 2012]) gives me a 95% speed rating (and no warnings about compression), yet YSlow and Chrome developer tools both flag me about gzip, as does a tool I found on here while researching this. To reduce cookies I set up a subdomain on my site and I thought maybe that was it so I added an .htaccess there also, but no luck. To reduce http requests I embedded some of webfonts and images in CSS (HTML5 BP stipulates not to compress images, and apparently '.woff' files are already compressed) so I thought maybe that was it and I spent all day separating and asynchronously loading those portions (via Modernizr.load) but that hasn't helped either...if anything it made it worse due to increasing http requests (I realize speed scores of async resources may be misleading). Researching this, it seems to be a fairly common issue but I haven't found an explanation/solution. I don't think it is a MIME-type issue, I have quadruple checked (and thrice edited) my .htaccess files. My hosting company said they run Apache 2.2.22 and I have looked at everything I can find. What gives?

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  • Compress with Gzip or Deflate my CSS & JS files

    - by muhammad usman
    i ve a fashion website & using wordpress. I want to Compress or Gzip or Deflate my CSS & JS files. i have tried many codes with .htaccess to compress but not working. Would any body help me please? My phpinfo is http://deemasfashion.co.uk/1.php below are the codes i have tried not not working. Few of them might be same but there is a difference in the syntax. <ifModule mod_gzip.c> mod_gzip_on Yes mod_gzip_dechunk Yes mod_gzip_item_include file .(html?|txt|css|js|php|pl)$ mod_gzip_item_include handler ^cgi-script$ mod_gzip_item_include mime ^text/.* mod_gzip_item_include mime ^application/x-javascript.* mod_gzip_item_exclude mime ^image/.* mod_gzip_item_exclude rspheader ^Content-Encoding:.*gzip.* </ifModule> other code I have tried but not working... <files *.css> SetOutputFilter DEFLATE </files> <files *.js> SetOutputFilter DEFLATE </files> I have also tried this code as well but no success. <ifModule mod_gzip.c> mod_gzip_on Yes mod_gzip_dechunk Yes mod_gzip_item_include file \.(html?|txt|css|js|php|pl)$ mod_gzip_item_include handler ^cgi-script$ mod_gzip_item_include mime ^text/.* mod_gzip_item_include mime ^application/x-javascript.* mod_gzip_item_exclude mime ^image/.* mod_gzip_item_exclude rspheader ^Content-Encoding:.*gzip.* </ifModule> This code is also not working <FilesMatch "\.(html?|txt|css|js|php|pl)$"> SetOutputFilter DEFLATE </FilesMatch> Here is another code not working. <ifmodule mod_deflate.c> AddOutputFilterByType DEFLATE text/text text/html text/plain text/xml text/css application/x- javascript application/javascript </ifmodule> Here is another code not working. <IFModule mod_deflate.c> <filesmatch "\.(js|css|html|jpg|png|php)$"> SetOutputFilter DEFLATE </filesmatch> </IFModule> Here is another code not working. <IfModule mod_deflate.c> AddOutputFilterByType DEFLATE text/html text/plain text/xml text/css application/x-javascript text/javascript application/javascript application/json <FilesMatch "\.(css|js)$" > SetOutputFilter DEFLATE </FilesMatch> </IfModule> Here is another code not working. #Gzip - compress text, html, javascript, css, xml <ifmodule mod_deflate.c> AddOutputFilterByType DEFLATE text/plain AddOutputFilterByType DEFLATE text/html AddOutputFilterByType DEFLATE text/xml AddOutputFilterByType DEFLATE text/css AddOutputFilterByType DEFLATE application/xml AddOutputFilterByType DEFLATE application/xhtml+xml AddOutputFilterByType DEFLATE application/rss+xml AddOutputFilterByType DEFLATE application/javascript AddOutputFilterByType DEFLATE application/x-javascript </ifmodule> #End Gzip Here is another code not working. <Location /> SetOutputFilter DEFLATE SetEnvIfNoCase Request_URI \.(?:gif|jpe?g|png)$ no-gzip dont-vary SetEnvIfNoCase Request_URI \.(?:exe|t?gz|zip|gz2|sit|rar)$ no-gzip dont-vary </Location>

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  • gunicorn + django + nginx unix://socket failed (11: Resource temporarily unavailable)

    - by user1068118
    Running very high volume traffic on these servers configured with django, gunicorn, supervisor and nginx. But a lot of times I tend to see 502 errors. So I checked the nginx logs to see what error and this is what is recorded: [error] 2388#0: *208027 connect() to unix:/tmp/gunicorn-ourapp.socket failed (11: Resource temporarily unavailable) while connecting to upstream Can anyone help debug what might be causing this to happen? This is our nginx configuration: sendfile on; tcp_nopush on; tcp_nodelay off; listen 80 default_server; server_name imp.ourapp.com; access_log /mnt/ebs/nginx-log/ourapp-access.log; error_log /mnt/ebs/nginx-log/ourapp-error.log; charset utf-8; keepalive_timeout 60; client_max_body_size 8m; gzip_types text/plain text/xml text/css application/javascript application/x-javascript application/json; location / { proxy_pass http://unix:/tmp/gunicorn-ourapp.socket; proxy_pass_request_headers on; proxy_read_timeout 600s; proxy_connect_timeout 600s; proxy_redirect http://localhost/ http://imp.ourapp.com/; #proxy_set_header Host $host; #proxy_set_header X-Real-IP $remote_addr; #proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for; #proxy_set_header X-Forwarded-Proto $my_scheme; #proxy_set_header X-Forwarded-Ssl $my_ssl; } We have configure Django to run in Gunicorn as a generic WSGI application. Supervisord is used to launch the gunicorn workers: home/user/virtenv/bin/python2.7 /home/user/virtenv/bin/gunicorn --config /home/user/shared/etc/gunicorn.conf.py daggr.wsgi:application This is what the gunicorn.conf.py looks like: import multiprocessing bind = 'unix:/tmp/gunicorn-ourapp.socket' workers = multiprocessing.cpu_count() * 3 + 1 timeout = 600 graceful_timeout = 40 Does anyone know where I can start digging to see what might be causing the problem? This is what my ulimit -a output looks like on the server: core file size (blocks, -c) 0 data seg size (kbytes, -d) unlimited scheduling priority (-e) 0 file size (blocks, -f) unlimited pending signals (-i) 59481 max locked memory (kbytes, -l) 64 max memory size (kbytes, -m) unlimited open files (-n) 50000 pipe size (512 bytes, -p) 8 POSIX message queues (bytes, -q) 819200 real-time priority (-r) 0 stack size (kbytes, -s) 8192 cpu time (seconds, -t) unlimited max user processes (-u) 1024 virtual memory (kbytes, -v) unlimited file locks (-x) unlimited

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  • Apache2 graceful restart stops proxying requests to passenger

    - by Rob
    Issue with apache mod proxy, it stops proxying requests after a graceful restart but not all the time. It seems to happen only on a Sunday when a graceful restart is triggered by logrotate. [Sun Sep 9 05:25:06 2012] [notice] SIGUSR1 received. Doing graceful restart [Sun Sep 9 05:25:06 2012] [notice] Apache/2.2.22 (Ubuntu) Phusion_Passenger/3.0.11 configured -- resuming normal operations [Sun Sep 9 05:25:06 2012] [error] proxy: ap_get_scoreboard_lb(492) failed in child 26153 for worker proxy:reverse [Sun Sep 9 05:25:06 2012] [error] proxy: ap_get_scoreboard_lb(486) failed in child 26153 for worker http://api.myservice.org/api [Sun Sep 9 05:25:06 2012] [error] proxy: ap_get_scoreboard_lb(487) failed in child 26153 for worker http://api.myservice.org/editor/$1 [Sun Sep 9 05:25:06 2012] [error] proxy: ap_get_scoreboard_lb(489) failed in child 26153 for worker http://api.myservice.org/build [Sun Sep 9 05:25:06 2012] [error] proxy: ap_get_scoreboard_lb(490) failed in child 26153 for worker http://api.myservice.org/help [Sun Sep 9 05:25:06 2012] [error] proxy: ap_get_scoreboard_lb(491) failed in child 26153 for worker http://api.myservice.org/motd.html [Sun Sep 9 05:25:06 2012] [error] proxy: ap_get_scoreboard_lb(480) failed in child 26153 for worker http://api.myservice.org/api [Sun Sep 9 05:25:06 2012] [error] proxy: ap_get_scoreboard_lb(481) failed in child 26153 for worker http://api.myservice.org/editor/$1 [Sun Sep 9 05:25:06 2012] [error] proxy: ap_get_scoreboard_lb(483) failed in child 26153 for worker http://api.myservice.org/build [Sun Sep 9 05:25:06 2012] [error] proxy: ap_get_scoreboard_lb(484) failed in child 26153 for worker http://api.myservice.org/help [Sun Sep 9 05:25:06 2012] [error] proxy: ap_get_scoreboard_lb(485) failed in child 26153 for worker http://api.myservice.org/motd.html [Sun Sep 9 05:25:06 2012] [error] proxy: ap_get_scoreboard_lb(479) failed in child 26153 for worker http://api.myservice.org/motd.html After these lines, the logs are flooded with 404's because the requests are not being proxied. It's worth noting that the destination is just another vhost on the same apache instance, but the vhost (http://api.myservice.org) is serving passenger (mod_rails) I was thinking that maybe there's some startup issues with the passenger workers not being ready during a graceful restart? After a full restart resolves it and everything returns to normal. //Edit Here's the vhost config, thanks :) <VirtualHost *:80> UseCanonicalName Off LogFormat "%V %h %l %u %t \"%r\" %s %b" vcommon <Directory /var/www/vhosts> RewriteEngine on AllowOverride All </Directory> RewriteEngine on RewriteCond /var/www/vhosts/%{SERVER_NAME} !-d RewriteCond /var/www/vhosts/%{SERVER_NAME} !-l RewriteRule ^ http://sitenotfound.myservice.org/ [R=302,L] VirtualDocumentRoot /var/www/vhosts/%0/current # Rewrite requests to /assets to map to the /var/file-store/<SERVER_NAME>/ RewriteMap lowercase int:tolower RewriteCond %{REQUEST_URI} ^/assets/ RewriteRule ^/assets/(.*)$ /var/file-store/${lowercase:%{SERVER_NAME}}/$1 # Map /login to /editor.html as it's far friendlier. RewriteCond %{REQUEST_URI} ^/login RewriteRule .* /editor.html [PT] # Forward some requests to the API ProxyPass /api http://api.myservice.org/api ProxyPass /site.json http://api.myservice.org/api/editor/site ProxyPassMatch ^/editor/(.*)$ http://api.myservice.org/editor/$1 ProxyPassMatch ^/api/(.*) http://api.myservice.org/api/$1 ProxyPass /build http://api.myservice.org/build ProxyPass /help http://api.myservice.org/help ProxyPass /motd.html http://api.myservice.org/motd.html <Proxy *> Order allow,deny Allow from all </Proxy> # TODO generate slightly more specific Error Documents for 401/403/500's, # but for now the 404 page is good enough ErrorDocument 401 /404.html ErrorDocument 403 /404.html ErrorDocument 404 /404.html ErrorDocument 500 /404.html </VirtualHost>

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  • System Requirements of a write-heavy applications serving hundreds of requests per second

    - by Rolando Cruz
    NOTE: I am a self-taught PHP developer who has little to none experience managing web and database servers. I am about to write a web-based attendance system for a very large userbase. I expect around 1000 to 1500 users logged-in at the same time making at least 1 request every 10 seconds or so for a span of 30 minutes a day, 3 times a week. So it's more or less 100 requests per second, or at the very worst 1000 requests in a second (average of 16 concurrent requests? But it could be higher given the short timeframe that users will make these requests. crosses fingers to avoid 100 concurrent requests). I expect two types of transactions, a local (not referring to a local network) and a foreign transaction. local transactions basically download userdata in their locality and cache it for 1 - 2 weeks. Attendance equests will probably be two numeric strings only: userid and eventid. foreign transactions are for attendance of those do not belong in the current locality. This will pass in the following data instead: (numeric) locality_id, (string) full_name. Both requests are done in Ajax so no HTML data included, only JSON. Both type of requests expect at the very least a single numeric response from the server. I think there will be a 50-50 split on the frequency of local and foreign transactions, but there's only a few bytes of difference anyways in the sizes of these transactions. As of this moment the userid may only reach 6 digits and eventid are 4 to 5-digit integers too. I expect my users table to have at least 400k rows, and the event table to have as many as 10k rows, a locality table with at least 1500 rows, and my main attendance table to increase by 400k rows (based on the number of users in the users table) a day for 3 days a week (1.2M rows a week). For me, this sounds big. But is this really that big? Or can this be handled by a single server (not sure about the server specs yet since I'll probably avail of a VPS from ServInt or others)? I tried to read on multiple server setups Heatbeat, DRBD, master-slave setups. But I wonder if they're really necessary. the users table will add around 500 1k rows a week. If this can't be handled by a single server, then if I am to choose a MySQL replication topology, what would be the best setup for this case? Sorry, if I sound vague or the question is too wide. I just don't know what to ask or what do you want to know at this point.

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  • After compiling PHP, I get mod_fcgid: error reading data from FastCGI server

    - by user34295
    I'm trying to add multiple PHP version in Plesk 12. Switching my domain to the new version PHP 5.4.29 result in this error: (104)Connection reset by peer: mod_fcgid: error reading data from FastCGI server Here is phpinfo() of the complied PHP version, obtained running php54-cgi index.php from the terminal. The same script placed under document root doesn't work in FastCGI. How can I debug/try to figure out what's the error? Currently running CentOS 6.5 x64, Plesk v12.0.18_build1200140529.2, PHP 5.5.13. I've downloaded PHP 5.4.29: cd /usr/local/src curl -O http://it1.php.net/distributions/php-5.4.29.tar.gz cd php-5.4.29 And configured with: ./configure \ --prefix=/usr/local/php54 \ --with-bz2 \ --with-config-file-path=/usr/local/php54/etc \ --with-config-file-scan-dir=/usr/local/php54/etc/php.d \ --with-curl \ --with-gd \ --with-gettext \ --with-iconv \ --with-layout=PHP \ --with-libxml-dir=/usr/local/php54 \ --with-mhash \ --with-mysql=mysqlnd \ --with-mysqli=mysqlnd \ --with-openssl \ --with-pdo-mysql=mysqlnd \ --with-readline \ --with-xsl \ --with-zlib \ --enable-calendar \ --enable-cgi \ --enable-exif \ --enable-ftp \ --enable-intl \ --enable-mbstring \ --enable-pcntl \ --enable-shmop \ --enable-sockets \ --enable-sockets \ --enable-sysvmsg \ --enable-sysvsem \ --enable-sysvshm \ --enable-wddx \ --enable-zip Then: make && make install Installing PHP CLI binary: /usr/local/php54/bin/ Installing PHP CLI man page: /usr/local/php54/php/man/man1/ Installing PHP CGI binary: /usr/local/php54/bin/ Installing PHP CGI man page: /usr/local/php54/php/man/man1/ Installing build environment: /usr/local/php54/lib/php/build/ Installing header files: /usr/local/php54/include/php/ Installing helper programs: /usr/local/php54/bin/ program: phpize program: php-config Installing man pages: /usr/local/php54/php/man/man1/ page: phpize.1 page: php-config.1 Installing PEAR environment: /usr/local/php54/lib/php/ [PEAR] Archive_Tar - installed: 1.3.11 [PEAR] Console_Getopt - installed: 1.3.1 warning: pear/PEAR requires package "pear/Structures_Graph" (recommended version 1.0.4) warning: pear/PEAR requires package "pear/XML_Util" (recommended version 1.2.1) [PEAR] PEAR - installed: 1.9.4 Wrote PEAR system config file at: /usr/local/php54/etc/pear.conf You may want to add: /usr/local/php54/lib/php to your php.ini include_path [PEAR] Structures_Graph- installed: 1.0.4 [PEAR] XML_Util - installed: 1.2.1 /usr/local/src/php-5.4.29/build/shtool install -c ext/phar/phar.phar /usr/local/php54/bin ln -s -f /usr/local/php54/bin/phar.phar /usr/local/php54/bin/phar Installing PDO headers: /usr/local/php54/include/php/ext/pdo/ Copied php.ini-production to /usr/local/php54/etc/php.ini and added a new handler in Plesk: /usr/local/psa/bin/php_handler --add -displayname 5.4.29 -path /usr/local/php54/bin/php-cgi -phpini /usr/local/php54/etc/php.ini -type fastcgi -id php54 Symbolic linking: ln -s /usr/local/php54/bin/php /usr/local/bin/php54 ln -s /usr/local/php54/bin/php-cgi /usr/local/bin/php54-cgi New installed version: php54-cgi -m [PHP Modules] bz2 calendar cgi-fcgi Core ctype curl date dom ereg exif fileinfo filter ftp gd gettext hash iconv intl json libxml mbstring mhash mysql mysqli mysqlnd openssl pcntl pcre PDO pdo_mysql pdo_sqlite Phar posix readline Reflection session shmop SimpleXML sockets SPL sqlite3 standard sysvmsg sysvsem sysvshm tokenizer wddx xml xmlreader xmlwriter xsl zip zlib [Zend Modules]

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