Search Results

Search found 6362 results on 255 pages for 'django urls'.

Page 244/255 | < Previous Page | 240 241 242 243 244 245 246 247 248 249 250 251  | Next Page >

• (Python/Pyramid) Better ways to have standard list/form editors?

  - by badcat

  I'm working on a number of Pyramid (former Pylons) projects, and often I have the need to display a list of some content (let's say user accounts, log entries or simply some other data). A user should be able to paginate through the list, click on a row and get a form where he/she can edit the contents of that row. Right now I'm always re-inventing the wheel by having Mako templates which use webhelpers for the pagination, Jquery UI for providing a dialog and I craft the editor form and AJAX requests on the client and server side by hand. As you may know, this eats up painfully much time. So what I'm wondering is: Is there a better way of providing lists, editor dialog and server/client communication about this, without having to re-invent the wheel every time? I heard Django takes off a big load of that by providing user accounts and other stuff out of the box; but in my case it's not just about user accounts, it can be any kind of data that is stored on the server-side in a SQL database, which should be able to be edited by a user. Thanks in advance!

  Read the article

• Multi level menu, active links css highlight. (Ruby on Rails)

  - by klamath

  Site structure: / /products /products/design /products/photo /about I want to see parent menu item also highlighted by CSS, when child is active. (When 'design' or 'photo' is active 'products' should be highlighted too.) I'm using this for child and simple urls: <li class="<%= current_page?(:action => 'design') %>"> <%= link_to_unless_current 'Design', :design %> </li> For 'products' checking should be like: <%= current_page?(:action => 'products') || current_page?(:action => 'design') %> || current_page?(:action => 'photo') %> But triple || is not right, and it's become complicated. I saw a helper, like this one: def current(childs) if current_page?(:action => childs) @container = "active" else @container = "inactive" end end Which is used by: <%= current(:photo) %> So, how to put all my 3 checks for 'products', 'design', 'photo' in one helper? And make possible to use something like <%= current(:products, :design, :photo) %>

  Read the article

• Speed of Synchronization vs Normal

  - by Swaranga Sarma

  I have a class which is written for a single thread with no methods being synchronized. class MyClass implements MyInterface{ //interface implementation methods, not synchronized } But we also needed a synchronized version of the class. So we made a wrapper class that implements the same interface but has a constructor that takes an instance of MyClass. Any call to the methods of the synchronized class are delegated to the instance of MyClass. Here is my synchronized class.. class SynchronizedMyClass implements MyInterface{ //the constructor public SynchronizedMyClass(MyInterface i/*this is actually an instance of MyClass*/) //interface implementation methods; all synchronized; all delegated to the MyInterface instance } After all this I ran numerous amounts of test runs with both the classes. The tests involve reading log files and counting URLs in each line. The problem is that the synchronized version of the class is consistently taking less time for the parsing. I am using only one thread for the teste, so there is no chance of deadlocks, race around condition etc etc. Each log file contains more than 5 million lines which means calling the methods more than 5 million times. Can anyone explain why synchronized versiuon of the class migt be taking less time than the normal one?

  Read the article

• Python, web log data mining for frequent patterns

  - by descent

  Hello! I need to develop a tool for web log data mining. Having many sequences of urls, requested in a particular user session (retrieved from web-application logs), I need to figure out the patterns of usage and groups (clusters) of users of the website. I am new to Data Mining, and now examining Google a lot. Found some useful info, i.e. querying Frequent Pattern Mining in Web Log Data seems to point to almost exactly similar studies. So my questions are: Are there any python-based tools that do what I need or at least smth similar? Can Orange toolkit be of any help? Can reading the book Programming Collective Intelligence be of any help? What to Google for, what to read, which relatively simple algorithms to use best? I am very limited in time (to around a week), so any help would be extremely precious. What I need is to point me into the right direction and the advice of how to accomplish the task in the shortest time. Thanks in advance!

  Read the article

• lightbox dynamic image retrieval

  - by GSTAR

  I am constructing a lighbox gallery, currently experimenting with FancyBox (http://fancybox.net) and ColorBox (http://colorpowered.com/colorbox). By default you have to include a link to the large version of the image so that the Lightbox can display it. However, I am wanting to have the image link URLs pointing to a script rather than directly to the image file. So for example, instead of: <a href="mysite/images/myimage.jpg"> I want to do: <a href="mysite/photos/view/abc123"> The above URL points to a function: public function actionPhotos($view) { $photo=Photo::model()->find('name=:name', array(':name'=>$view)); if(!empty($photo)) { $user=$photo->user; $this->renderPartial('_photo', array('user'=>$user, 'photo'=>$photo, true)); } } At some point in the future the function will also update the view count of the image. Now this approach is working to an extent - most images load up but some do not load up (the lightbox gets displayed in a malformed state). I think the reason for this is because it is not processing the function quick enough. For example when I click the "next" button it needs to go to the URL, process the function and retreive/output the response. Does anybody know how I can get this working properly?

  Read the article

• How to document an existing small web site (web application), inside and out?

  - by Ricket

  We have a "web application" which has been developed over the past 7 months. The problem is, it was not really documented. The requirements consisted of a small bulleted list from the initial meeting 7 months ago (it's more of a "goals" statement than software requirements). It has collected a number of features which stemmed from small verbal or chat discussions. The developer is leaving very soon. He wrote the entire thing himself and he knows all of the quirks and underlying rules to each page, but nobody else really knows much more than the user interface side of it; which of course is the easy part, as it's made to be intuitive to the user. But if someone needs to repair or add a feature to it, the entire thing is a black box. The code has some minimal comments, and of course the good thing about web applications is that the address bar points you in the right direction towards fixing a problem or upgrading a page. But how should the developer go about documenting this web application? He is a bit lost as far as where to begin. As developers, how do you completely document your web applications for other developers, maintainers, and administrative-level users? What approach do you use, where do you start, do you have a template? An idea of magnitude: it uses PHP, MySQL and jQuery. It has about 20-30 main (frontend) files, along with about 15 included files and a couple folders of some assets. So overall it's a pretty small application. It interfaces with 7 MySQL tables, each one well-named, so I think the database end is pretty self-explanatory. There is a config.inc.php file with definitions of consts like the MySQL user details, some from/to emails, and URLs which PHP uses to insert into emails and pages (relative and absolute paths, basiecally). There is some AJAX via jQuery. Please comment if there is any other information that would help you help me and I will be glad to edit it in.

  Read the article

• Change cookies when doing jQuery.ajax requests in Chrome Extensions

  - by haskellguy

  I have wrote a plugin for facebook that sends data to testing-fb.local. The request goes through if the user is logged in. Here is the workflow: User logs in from testing-fb.local Cookies are stored When $.ajax() are fired from the Chrome extension Chrome extension listen with chrome.webRequest.onBeforeSendHeaders Chrome extension checks for cookies from chrome.cookies.get Chrome changes the Set-Cookies header to be sent And the request goes through. I wrote this part of code that shoud be this: function getCookies (callback) { chrome.cookies.get({url:"https://testing-fb.local", name: "connect.sid"}, function(a){ return callback(a) }) } chrome.webRequest.onBeforeSendHeaders.addListener( function(details) { getCookies(function(a){ // Here something happens }) }, {urls: ["https://testing-fb.local/*"]}, ['blocking']); Here is my manifest.json: { "name": "test-fb", "version": "1.0", "manifest_version": 1, "description": "testing", "permissions": [ "cookies", "webRequest", "tabs", "http://*/*", "https://*/*" ], "background": { "scripts": ["background.js"] }, "content_scripts": [ { "matches": ["http://*.facebook.com/*", "https://*.facebook.com/*"], "exclude_matches" : [ "*://*.facebook.com/ajax/*", "*://*.channel.facebook.tld/*", "*://*.facebook.tld/pagelet/generic.php/pagelet/home/morestories.php*", "*://*.facebook.tld/ai.php*" ], "js": ["jquery-1.8.3.min.js", "allthefunctions.js"] } ] } In allthefunction.js I have the $.ajax calls, and in background.js is where I put the code above which however looks not to run.. In summary, I have not clear: What I should write in Here something happens If this strategy is going to work Where should I put this code?

  Read the article

• Is it possible to reference remote content from chrome.manifest? (XULRunner)

  - by siemaa

  Hi, I have a xulrunner application and I've been trying to reference remote content from chrome.manifest file. Tt's an application for the company I work in; it's run on a number of computers (most of them are used by other employees as well) as a kind of an internet monitoring service. The problem I'd like to solve is this: updating the code of such application usually requires me to manually copy the modified files to every computer that the application is running on (I've had no luck trying to make automatic updates via xulrunner platform). This process has become very tedious. What I'd like to have is a web server, where all of the xul and js files would be accessible, so that every application could reference them from there. This would require me only to update the code on that server, and the applications (when restarted) would automatically get the latest code. What I managed to do: I can reference js scripts from a xul file using http based urls and everything works fine (I can use local, binary components etc.), although the xul file has to be local - that I'd like to change. But when I write in chrome.manifest a line like: content my_app http://path/to/app/files/ and then use the line in default/preferences/pref.js pref("toolkit.defaultChromeURI", "chrome://my_app/content/my_app.xul"); it just opens a console window (to test I manually run the application with the -console option) and no code gets executed. The file can be downloaded remotely using wget so I guess this isn't the web server issue. The applications work on Windows machines. Is there some kind of security issue causing such behavior or am I doing something wrong? Is it even possible to register remote, http based content as chrome?

  Read the article

• Using Zend_Db and multiple tables

  - by Yacoby

  I have a normalized database that stores locations of files on the internet. A file may have multiple locations spread across different sites. I am storing the urls in two parts (Site.UrlStart, FileLocation.UrlEnd). The UrlEnd is the part unique to that file (for the site). Simplified Db structure: I am using Zend_Db as my ORM (If it is that), with classes for the tables inheriting from Zend_Db_Table_Abstract. The issue is that retrieving the location data (e.g. the url) requires the use of multiple tables and as far as I can make out and I would either have to use both table classes (thereby exposing my table structure) or scatter sql all over my application, neither of which sound appealing. The only solution I can see is to create a façade that acts like Zend_Db_Table_Abstract (Maybe inherits from it?) and hides the fact that the data is actually on two tables. My questions are as follows: Am I going in the right direction in creating a façade class (Are there other alternatives)? Should the facade class inherit from Zend_Db_Table_Abstract?

  Read the article

• Figure and figcaption figures shrink images

  - by Why Not

  I'm attempting to use the figure and figcaption tags to varying success. Someone suggested a great CSS method to get rid of the figure margin and also link up the caption with the image. The problem: all images shrink to an extremely small size. Not sure how to rectify this. These are user-submitted images using Django so they vary in size. But currently, using these fixes, all of these shrink with a caption that does fit the image but defeats the purpose as it results in a tiny image with a caption with an even width. {% if story.pic %} <h2>Image</h2> <figure> <img class="image"src="{{ story.pic.url }}" alt="some_image_alt_text"/> {% if story.caption %} <figcaption>{{story.caption}}</figcaption> {% endif %} </figure> {% endif %} figure {margin:0; display:table; width:1px;} figcaption {display:table-row;}

  Read the article

• I can't find the homepage for my ASP.NET MVC site :(

  - by Pure.Krome

  Hi folks, really simple question here. when I remove the default route, I returns an empty page to the browser :- routes.MapRoute( "Default", // Route name "{controller}/{action}/{id}", // URL with parameters new { controller = "Home", action = "Index", id = UrlParameter.Optional } ); Now before everyone starts shouting "that's because that's the default route to access all action methods, etc.." .. i know that. My question is - what code / routes does the default framework try and call .. which makes that Default Route get used/kick in? Why? I don't wish to make that my default route regex (don't ask why - this is some R&D) but I still need the main home page .. ie. Home/Index . If i try and just add that route, it doesn't get called and an empty page is returned. So -- what does the framework try and call when a user doesn't provide any urls? It's like there's some secret default document stuff set up? Cheers :)

  Read the article

• resultCode is always 0

  - by Aaron T

  I'm trying to get the resultCode to be OK inside my onActivityResult function. However, it keeps coming back as 0. I have spent several days on this, and can't figure out why it doesn't work. Here's my code. If anybody can help me, I'll be very grateful, Thanks. My Activity1 class: private class MyTask extends AsyncTask<String, Void, String> { @Override protected String doInBackground(String... urls) { // process return result; } @Override protected void onPostExecute(String result) { Intent i = new Intent(Activity1.this, Activity2.class); i.putExtra("Value1", "This value one for ActivityOne "); i.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK); startActivityForResult(i, REQUEST_CODE); textView.setText(result); } } @Override protected void onActivityResult(int requestCode, int resultCode, Intent data) { if (resultCode == RESULT_OK && requestCode == REQUEST_CODE) { // do something } } My Activity 2 class: @Override public void finish() { Intent data = new Intent(); data.putExtra("returnKey1", "return 1"); setResult(RESULT_OK, data); super.finish(); } My manifest: <application android:icon="@drawable/icon" android:label="@string/app_name"> <activity android:name=".Activity1" android:label="@string/app_name"> <intent-filter> <action android:name="android.intent.action.MAIN" /> <category android:name="android.intent.category.LAUNCHER" /> </intent-filter> </activity> <activity android:name=".Activity2" android:label="@string/app_dialog_name" android:launchMode="singleTop" android:excludeFromRecents="true" android:taskAffinity="" android:theme="@android:style/Theme.Dialog"> </activity> </application>

  Read the article

• x.gif in Apache logs

  - by T. Stone

  I manage a Django site where we host the media on a subdomain. There shouldn't be any requests for media to the main domain. However I keep seeing these requests for "x.gif" showing up in the access logs on the domain that's handled by WSGI (not the media domain). Can anyone explain what this is? X.X.X.X - - [08/Mar/2010:10:04:00 -1000] "GET / HTTP/1.1" 200 3724 X.X.X.X - - [08/Mar/2010:10:04:10 -1000] "GET /x.gif HTTP/1.1" 404 2653 X.X.X.X - - [08/Mar/2010:10:04:10 -1000] "GET /x.gif HTTP/1.1" 404 2653 X.X.X.X - - [08/Mar/2010:10:04:10 -1000] "GET /x.gif HTTP/1.1" 404 2653 X.X.X.X - - [08/Mar/2010:10:04:10 -1000] "GET /x.gif HTTP/1.1" 404 2653 X.X.X.X - - [08/Mar/2010:10:04:51 -1000] "GET /x.gif HTTP/1.1" 404 2653 X.X.X.X - - [08/Mar/2010:10:04:52 -1000] "GET /x.gif HTTP/1.1" 404 2653 X.X.X.X - - [08/Mar/2010:10:04:52 -1000] "GET /x.gif HTTP/1.1" 404 2653 X.X.X.X - - [08/Mar/2010:10:04:52 -1000] "GET /x.gif HTTP/1.1" 404 2653 X.X.X.X - - [08/Mar/2010:10:04:56 -1000] "GET /contact/ HTTP/1.1" 200 7196 X.X.X.X - - [08/Mar/2010:10:04:58 -1000] "GET /contact/x.gif HTTP/1.1" 404 2653 X.X.X.X - - [08/Mar/2010:10:04:58 -1000] "GET /contact/x.gif HTTP/1.1" 404 2653 X.X.X.X - - [08/Mar/2010:10:05:00 -1000] "GET /contact/x.gif HTTP/1.1" 404 2653 X.X.X.X - - [08/Mar/2010:10:05:00 -1000] "GET /contact/x.gif HTTP/1.1" 404 2653 X.X.X.X - - [08/Mar/2010:10:05:00 -1000] "GET /contact/x.gif HTTP/1.1" 404 2653 X.X.X.X - - [08/Mar/2010:10:05:00 -1000] "GET /contact/x.gif HTTP/1.1" 404 2653 X.X.X.X - - [08/Mar/2010:10:05:01 -1000] "GET /contact/x.gif HTTP/1.1" 404 2653 X.X.X.X - - [08/Mar/2010:10:05:01 -1000] "GET /contact/x.gif HTTP/1.1" 404 2653 X.X.X.X - - [08/Mar/2010:10:05:01 -1000] "GET /contact/x.gif HTTP/1.1" 404 2653 X.X.X.X - - [08/Mar/2010:10:05:01 -1000] "GET /contact/x.gif HTTP/1.1" 404 2653 X.X.X.X - - [08/Mar/2010:10:05:02 -1000] "GET /contact/x.gif HTTP/1.1" 404 2653 X.X.X.X - - [08/Mar/2010:10:05:02 -1000] "GET /contact/x.gif HTTP/1.1" 404 2653 X.X.X.X - - [08/Mar/2010:10:05:02 -1000] "GET /contact/x.gif HTTP/1.1" 404 2653 X.X.X.X - - [08/Mar/2010:10:05:02 -1000] "GET /contact/x.gif HTTP/1.1" 404 2653 X.X.X.X - - [08/Mar/2010:10:05:03 -1000] "GET /contact/x.gif HTTP/1.1" 404 2653 X.X.X.X - - [08/Mar/2010:10:05:03 -1000] "GET /contact/x.gif HTTP/1.1" 404 2653 X.X.X.X - - [08/Mar/2010:10:05:03 -1000] "GET /contact/x.gif HTTP/1.1" 404 2653 X.X.X.X - - [08/Mar/2010:10:05:04 -1000] "GET /contact/x.gif HTTP/1.1" 404 2653 X.X.X.X - - [08/Mar/2010:10:05:04 -1000] "GET /contact/x.gif HTTP/1.1" 404 2653 X.X.X.X - - [08/Mar/2010:10:05:04 -1000] "GET /contact/x.gif HTTP/1.1" 404 2653 X.X.X.X - - [08/Mar/2010:10:05:04 -1000] "GET /contact/x.gif HTTP/1.1" 404 2653 X.X.X.X - - [08/Mar/2010:10:05:05 -1000] "GET /contact/x.gif HTTP/1.1" 404 2653 X.X.X.X - - [08/Mar/2010:10:05:05 -1000] "GET /contact/x.gif HTTP/1.1" 404 2653 X.X.X.X - - [08/Mar/2010:10:05:05 -1000] "GET /contact/x.gif HTTP/1.1" 404 2653 X.X.X.X - - [08/Mar/2010:10:05:05 -1000] "GET /contact/x.gif HTTP/1.1" 404 2653 X.X.X.X - - [08/Mar/2010:10:05:06 -1000] "GET /contact/x.gif HTTP/1.1" 404 2653 X.X.X.X - - [08/Mar/2010:10:05:06 -1000] "GET /contact/x.gif HTTP/1.1" 404 2653 X.X.X.X - - [08/Mar/2010:10:05:06 -1000] "GET /contact/x.gif HTTP/1.1" 404 2653 X.X.X.X - - [08/Mar/2010:10:05:06 -1000] "GET /contact/x.gif HTTP/1.1" 404 2653

  Read the article

• No network upsets gnome

  - by Darren Cook

  An issue that has been bothering me for over a year now. My notebook, running ubuntu 10.04, is almost all the time using a wired connection, with static IP address. And a remote DNS server. Network is configured with entries in /etc/network/interfaces and /etc/resolv.conf, rather than whatever the gnome UI tool was (*) But if I'm out, or simply unplug the network cable, a few things get weird. Specifically the gnome-panel stops working - it is still there, but isn't updating. And opening a nautilus window (e.g. to look at files on the local disk) has huge time-outs. By that I mean it will not open the window for something like 30 or 60 seconds; but when it does finally open it I can see the files and it is perfectly usable. Everything else works fine, alt-tab between windows, etc. I use the commandline to find the pid of gnome-panel, kill it, wait a couple of seconds, and it opens up a fresh panel which is normally usable. (Something like 10 minutes later it will have locked/crashed again; the same for the nautilus windows.) I'm guessing this is a DNS issue? Would setting up a local DNS server help? Guess number 2 was related to having a file server mount (samba, though running on another linux box), and symbolic links to files and directories on that file server on my desktop. My question is a bit vague... Does anyone recognize these symptoms, and have a suggestion? Or do you have some troubleshooting suggestions for narrowing down the problem? My /etc/hosts: 127.0.0.1 localhost 127.0.1.1 myhost # The following lines are desirable for IPv6 capable hosts ::1 localhost ip6-localhost ip6-loopback fe00::0 ip6-localnet ff00::0 ip6-mcastprefix ff02::1 ip6-allnodes ff02::2 ip6-allrouters ff02::3 ip6-allhosts 127.0.0.1 testsite.local #Other test website URLs here UPDATE: Some timings to open some desktop folder icons. This is after pulling out the network cable. A sub-directory of the desktop took 23 secs to open up. Content appears immediately (just 8 files, it has no further subdirectories). The home directory icon took 12 seconds to open up, but then took about 30 seconds for the files to appear. I closed it and tried again. This time it took 18 seconds to open up, but then 70 seconds before anything appeared. *: I couldn't work out how to use the gnome network tool for my needs, which include 3-4 static IPs for testing virtual hosts locally.

  Read the article

• How to Block a HTTP Website along with Its All Subdomain using IPTABLE

  - by netnovice

  I run a small HTTP web proxy site . We can not modify anything there in Proxy program. Few users mainly use Yahoo Web mail for Spamming and We need to block yahoo web mail access only ( complete yahoo website is also Ok) through our proxy . specially .mail.yahoo.com.. Like - we need to block URL like - http://uk-mg61.mail.yahoo.com http://in-mg61.mail.yahoo.com etc. etc. Note : We generaly open http://mail.yahoo.com in browser - but after loggin in it forwards it to Urls like above but all those are subdomain of mail.yahoo.com My target is if we can get all IP list for all available subdomain of mail.yahoo.com I can block it totally . We can only use IPTABLE ...I know using proxy itself we can check HTTP header and check Host field for .mail.yahoo.com. and block it. Solution : Follwoign what I did using IPtable . I collected IP CIDR block for yahoo mainly for yahoo web mail ( mail.yahoo.com ) as much as possible ( using linux host and whois command ) [ like 66.163.160.0/19 nd 98.136.0.0/14 etc ] and applied follwing command Like iptables -A OUTPUT -p tcp -d 66.163.160.0/19 -m state --state NEW -j DROP etc. Things are working fine. user can not access yahoo mail BUT the problem is I need to be updated with the avaialble CIDR YAHOO IP list ... I am ready to do it every week. I collected many from Net... You know theer are countles subdomain of mail.yahoo.com and seems every week Yahoo adding new IP... But what I observed some time user can bypass our rule and the reason obvously all the avaialble Ips are not entered in IPtable yet. What we need to do is enter all Ips of mail.yahoo.co But where do I find all subdomain for mail.yahoo.com I know we can get it from DNS but I must not be allowed to make DNS axfr query. Also doing reverse DNS will have performance issue. I want to know all subdomain of .mail.yahoo.c Can I get it from yahoo site. I have the list of all YAHOO smtp IP....but I need webmail Ip... ( http://public.yahoo.com/carloc/ymail.html ) Can you please share your Idea. Thank you

  Read the article

• Varnish configuration to only cache for non-logged in users

  - by davidsmalley

  I have a Ruby on Rails application fronted by varnish+nginx. As most of the sites content is static unless you are a logged in user, I want to cache the site heavily with varnish when a user is logged out but only to cache static assets when they are logged in. When a user is logged in they will have the cookie 'user_credentials' present in their Cookie: header, in addition I need to skip caching on /login and /sessions in order that a user can get their 'user_credentials' cookie in the first place. Rails by default does not set a cache friendly Cache-control header, but my application sets a "public,s-max-age=60" header when a user is not logged in. Nginx is set to return 'far future' expires headers for all static assets. The configuration I have at the moment is totally bypassing the cache for everything when logged in, including static assets — and is returning cache MISS for everything when logged out. I've spent hours going around in circles and here is my current default.vcl director rails_director round-robin { { .backend = { .host = "xxx.xxx.xxx.xxx"; .port = "http"; .probe = { .url = "/lbcheck/lbuptest"; .timeout = 0.3 s; .window = 8; .threshold = 3; } } } } sub vcl_recv { if (req.url ~ "^/login") { pipe; } if (req.url ~ "^/sessions") { pipe; } # The regex used here matches the standard rails cache buster urls # e.g. /images/an-image.png?1234567 if (req.url ~ "\.(css|js|jpg|jpeg|gif|ico|png)\??\d*$") { unset req.http.cookie; lookup; } else { if (req.http.cookie ~ "user_credentials") { pipe; } } # Only cache GET and HEAD requests if (req.request != "GET" && req.request != "HEAD") { pipe; } } sub vcl_fetch { if (req.url ~ "^/login") { pass; } if (req.url ~ "^/sessions") { pass; } if (req.http.cookie ~ "user_credentials") { pass; } else { unset req.http.Set-Cookie; } # cache CSS and JS files if (req.url ~ "\.(css|js|jpg|jpeg|gif|ico|png)\??\d*$") { unset req.http.Set-Cookie; } if (obj.status >=400 && obj.status <500) { error 404 "File not found"; } if (obj.status >=500 && obj.status <600) { error 503 "File is Temporarily Unavailable"; } } sub vcl_deliver { if (obj.hits > 0) { set resp.http.X-Cache = "HIT"; } else { set resp.http.X-Cache = "MISS"; } }

  Read the article

• How can I centralise MySQL data between 3 or more geographically separate servers?

  - by Andy Castles

  To explain the background to the question: We have a home-grown PHP application (for running online language-learning courses) running on a Linux server and using MySQL on localhost for saving user data (e.g. results of tests taken, marks of submitted work, time spent on different pages in the courses, etc). As we have students from different geographic locations we currently have 3 virtual servers hosted close to those locations (Spain, UK and Hong Kong) and users are added to the server closest to them (they access via different URLs, e.g. europe.domain.com, uk.domain.com and asia.domain.com). This works but is an administrative nightmare as we have to remember which server a particular user is on, and users can only connect to one server. We would like to somehow centralise the information so that all users are visible on any of the servers and users could connect to any of the 3 servers. The question is, what method should we use to implement this. It must be an issue that that lots of people have encountered but I haven't found anything conclusive after a fair bit of Googling around. The closest I have seen to solutions are: something like master-master replication, but I have read so many posts suggesting that this is not a good idea as things like auto_increment fields can break. circular replication, this sounded perfect but to quote from O'Reilly's High Performance MySQL, "In general, rings are brittle and best avoided" We're not against rewriting code in the application to make it work with whatever solution is required but I am not sure if replication is the correct thing to use. Thanks, Andy P.S. I should add that we experimented with writes to a central database and then using reads from a local database but the response time between the different servers for writing was pretty bad and it's also important that written data is available immediately for reading so if replication is too slow this could cause out-of-date data to be returned. Edit: I have been thinking about writing my own rudimentary replication script which would involve something like having each user given a server ID to say which is his "home server", e.g. users in asia would be marked as having the Hong Kong server as their own server. Then the replication scripts (which would be a PHP script set to run as a cron job reasonably frequently, e.g. every 15 minutes or so) would run independently on each of the servers in the system. They would go through the database and distribute any information about users with the "home server" set to the server that the script is running on to all of the other databases in the system. They would also need to suck new information which has been added to any of the other databases on the system where the "home server" flag is the server where the script is running. I would need to work out the details and build in the logic to deal with conflicts but I think it would be possible, however I wanted to make sure that there is not a correct solution for this already out there as it seems like it must be a problem that many people have already come across.

  Read the article

• Slow Memcached: Average 10ms memcached `get`

  - by Chris W.

  We're using Newrelic to measure our Python/Django application performance. Newrelic is reporting that across our system "Memcached" is taking an average of 12ms to respond to commands. Drilling down into the top dozen or so web views (by # of requests) I can see that some Memcache get take up to 30ms; I can't find a single use of Memcache get that returns in less than 10ms. More details on the system architecture: Currently we have four application servers each of which has a memcached member. All four memcached members participate in a memcache cluster. We're running on a cloud hosting provider and all traffic is running across the "internal" network (via "internal" IPs) When I ping from one application server to another the responses are in ~0.5ms Isn't 10ms a slow response time for Memcached? As far as I understand if you think "Memcache is too slow" then "you're doing it wrong". So am I doing it wrong? Here's the output of the memcache-top command: memcache-top v0.7 (default port: 11211, color: on, refresh: 3 seconds) INSTANCE USAGE HIT % CONN TIME EVICT/s GETS/s SETS/s READ/s WRITE/s cache1:11211 37.1% 62.7% 10 5.3ms 0.0 73 9 3958 84.6K cache2:11211 42.4% 60.8% 11 4.4ms 0.0 46 12 3848 62.2K cache3:11211 37.5% 66.5% 12 4.2ms 0.0 75 17 6056 170.4K AVERAGE: 39.0% 63.3% 11 4.6ms 0.0 64 13 4620 105.7K TOTAL: 0.1GB/ 0.4GB 33 13.9ms 0.0 193 38 13.5K 317.2K (ctrl-c to quit.) ** Here is the output of the top command on one machine: ** (Roughly the same on all cluster machines. As you can see there is very low CPU utilization, because these machines only run memcache.) top - 21:48:56 up 1 day, 4:56, 1 user, load average: 0.01, 0.06, 0.05 Tasks: 70 total, 1 running, 69 sleeping, 0 stopped, 0 zombie Cpu(s): 0.0%us, 0.0%sy, 0.0%ni, 99.7%id, 0.0%wa, 0.0%hi, 0.0%si, 0.3%st Mem: 501392k total, 424940k used, 76452k free, 66416k buffers Swap: 499996k total, 13064k used, 486932k free, 181168k cached PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND 6519 nobody 20 0 384m 74m 880 S 1.0 15.3 18:22.97 memcached 3 root 20 0 0 0 0 S 0.3 0.0 0:38.03 ksoftirqd/0 1 root 20 0 24332 1552 776 S 0.0 0.3 0:00.56 init 2 root 20 0 0 0 0 S 0.0 0.0 0:00.00 kthreadd 4 root 20 0 0 0 0 S 0.0 0.0 0:00.00 kworker/0:0 5 root 20 0 0 0 0 S 0.0 0.0 0:00.02 kworker/u:0 6 root RT 0 0 0 0 S 0.0 0.0 0:00.00 migration/0 7 root RT 0 0 0 0 S 0.0 0.0 0:00.62 watchdog/0 8 root 0 -20 0 0 0 S 0.0 0.0 0:00.00 cpuset 9 root 0 -20 0 0 0 S 0.0 0.0 0:00.00 khelper ...output truncated...

  Read the article

• Squid Proxy: url_regex acl is not working?

  - by bharathi

  I am using squid proxy 3.1 in ubuntu machine. I want to allow only urls matching our pattern through our proxy server. I configured acl like below. Acl for dstdomain is working fine. If i access any url besides .zmedia.com , I got proxy connection refused. But the url_regex is not working. What i am trying here is. Allow only request from ".zmedia.com" domain and the request url should be in "/blog" context. # # Recommended minimum configuration: # acl manager proto cache_object acl localhost src 127.0.0.1/32 ::1 acl to_localhost dst 127.0.0.0/8 ::1 acl urlwhitelist url_regex -i ^http(s)://([a-zA-Z]+).zmedia.com/blog/.*$ acl allowdomain dstdomain .zmedia.com acl Safe_ports port 80 8080 8500 7272 # Example rule allowing access from your local networks. # Adapt to list your (internal) IP networks from where browsing # should be allowed acl SSL_ports port 443 acl Safe_ports port 80 # http acl Safe_ports port 21 # ftp acl Safe_ports port 443 # https acl Safe_ports port 70 # gopher acl Safe_ports port 210 # wais acl Safe_ports port 1025-65535 # unregistered ports acl Safe_ports port 280 # http-mgmt acl Safe_ports port 488 # gss-http acl Safe_ports port 591 # filemaker acl Safe_ports port 777 # multiling http acl SSL_ports port 7272 # multiling http acl CONNECT method CONNECT # # Recommended minimum Access Permission configuration: # # Only allow cachemgr access from localhost http_access allow manager localhost http_access deny manager http_access deny !allowdomain http_access allow urlwhitelist http_access allow CONNECT SSL_ports http_access deny CONNECT !SSL_ports # Deny requests to certain unsafe ports http_access deny !Safe_ports # Deny CONNECT to other than secure SSL ports http_access deny CONNECT !SSL_ports # We strongly recommend the following be uncommented to protect innocent # web applications running on the proxy server who think the only # one who can access services on "localhost" is a local user #http_access deny to_localhost # # INSERT YOUR OWN RULE(S) HERE TO ALLOW ACCESS FROM YOUR CLIENTS # # Example rule allowing access from your local networks. # Adapt localnet in the ACL section to list your (internal) IP networks # from where browsing should be allowed http_access allow localhost # And finally deny all other access to this proxy http_access deny all # Squid normally listens to port 3128 http_port 3128 # We recommend you to use at least the following line. hierarchy_stoplist cgi-bin ? # Uncomment and adjust the following to add a disk cache directory. #cache_dir ufs /var/spool/squid 100 16 256 # Leave coredumps in the first cache dir coredump_dir /var/spool/squid append_domain .zmedia.com # Add any of your own refresh_pattern entries above these. refresh_pattern ^ftp: 1440 20% 10080 refresh_pattern ^gopher: 1440 0% 1440 refresh_pattern -i (/cgi-bin/|\?) 0 0% 0 refresh_pattern . 0 20% 4320 Please correct me , If i did anything wrong?

  Read the article

• Odd squid transparent redirect behavior

  - by EMiller

  This is the first time I've set up squid. It's running a redirect script that does some text search/replace on html pages, and then saves them to a location on the same machine on the nginx path - then issues the redirect to that URL (it's an art project :D). The relevant lines in squid.conf are http_port 3128 transparent redirect_program /etc/squid/jefferson_redirect.py The jefferson_redirect.py script is based on this script: http://gofedora.com/how-to-write-custom-redirector-rewritor-plugin-squid-python/ The issue: I'm getting strange http redirect behavior. For example, here is the normal request/response from a PHP script that issues a header("Location:"); - a 302 redirect: http://redirector.mysite.com/?unicmd=g+yreka GET /?unicmd=g+yreka HTTP/1.1 Host: redirector.mysite.com User-Agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.1.9) Gecko/20100330 Fedora/3.5.9-1.fc12 Firefox/3.5.9 Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8 Accept-Language: en-us,en;q=0.5 Accept-Encoding: gzip,deflate Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.7 Keep-Alive: 300 Connection: keep-alive HTTP/1.1 302 Found Date: Tue, 13 Apr 2010 05:15:43 GMT Server: Apache X-Powered-By: PHP/5.2.11 Location: http://www.google.com/search?q=yreka Content-Type: text/html Vary: User-Agent,Accept-Encoding Content-Encoding: gzip Content-Length: 2108 Keep-Alive: timeout=3, max=100 Connection: Keep-Alive Here's what it looks like when running through the squid proxy (note that "redirector.mysite.com" is not the site running squid or nginx): http://redirector.mysite.com/?unicmd=g+yreka GET /?unicmd=g+yreka HTTP/1.1 Host: redirector.mysite.com User-Agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.1.9) Gecko/20100330 Fedora/3.5.9-1.fc12 Firefox/3.5.9 Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8 Accept-Language: en-us,en;q=0.5 Accept-Encoding: gzip,deflate Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.7 Keep-Alive: 300 Proxy-Connection: keep-alive If-Modified-Since: Tue, 13 Apr 2010 05:21:02 GMT HTTP/1.0 200 OK Server: nginx/0.7.62 Date: Tue, 13 Apr 2010 05:21:10 GMT Content-Type: text/html Content-Length: 17865 Last-Modified: Tue, 13 Apr 2010 05:21:10 GMT Accept-Ranges: bytes X-Cache: MISS from jefferson X-Cache-Lookup: HIT from jefferson:3128 Via: 1.1 jefferson:3128 (squid/2.7.STABLE6) Connection: keep-alive Proxy-Connection: keep-alive It is basically working - but the URL http://redirector.mysite.com/?unicmd=g+yreka remains unchanged, while displaying the google page (mostly broken as it's using URLs relative to redirector.mysite.com) I've experienced a similar thing with google results pages: when clicking to another page from google, I get a google URL, with the other site's content. Sorry for the long post - many thanks if you've read this far! Any ideas?

  Read the article

• Is it possible to configure a CDN so that it will step out of the way for a subset of regional IPs?

  - by rwired

  We have a website which targets customers in China, both expat and local Chinese. We have an ICP license which allows us to host in a datacenter inside China. Internet in China is actually as fast as anywhere else (faster than most places actually), so long as the content is served-up within the boundaries of the Great-Firewall. Anything that crosses the wall is horribly slow. The problem is that most expats have some sort of VPN installed so that they can access all the blocked stuff. What this means is that when they access our site, the traffic first has to go out of China through the firewall to their VPN, and then back in. The performance is terrible, worse than if we were just hosting outside of China directly (which we used to do before the ICP was issued). So I want to use a global CDN to mirror the site automatically, but I only want to deliver the content via the CDN if the user's request IP address is outside of China. Inside China I would like the content to be served by our own server. I also want to be careful with the domain names. We currently use www.xxx.com and www.xxx.cn for language selection purposes, as these perform well in SEO on Google (which the expats use), and Baidu (which the locals use). If possible I would like to avoid having one domain on the outside, and the other on the inside since not all expats use a VPN, and some Chinese speakers also use VPNs. Also some of our legitimate customers in both languages are from outside of China. I also don't want to resort to using something like www2.xxx.com/cn for the outside connection if at all possible, since I have worries about duplicate content and canonical URLs ruining our SEO (unless you know of a quick fix for that). CDNs I'm considering are: Google PageSpeed, CloudFlare, Amazon CloudFront. None of which have datacenters inside China. I have complete control of the .com DNS zone records, but the .cn zones are under the control of the domain issuing body in China. I'm not sure at this time if they would allow even a CNAME to point to an IP outside of China (although I don't see why not). They no longer allow outside registrars like they used to.

  Read the article

• Setting up nginx as proxy to apache; All good, but nginx doesn't serve media

  - by becomingGuru

  I have set it up such that nginx proxies request and sends django requests to apache and serves media itself. Following documents my setup: Nginx Configuration: /etc/nginx/nginx.conf user www-data; worker_processes 1; error_log /var/log/nginx/error.log; pid /var/run/nginx.pid; events { worker_connections 1024; } http { include /etc/nginx/mime.types; default_type application/octet-stream; access_log /var/log/nginx/access.log; sendfile on; tcp_nopush on; #keepalive_timeout 0; keepalive_timeout 65; tcp_nodelay on; gzip on; include /etc/nginx/sites-enabled/*; } ===== ngnix proxy /etc/nginx/proxy.conf ============ proxy_redirect off; proxy_set_header Host $host; proxy_set_header X-Real-IP $remote_addr; proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for; client_max_body_size 10m; client_body_buffer_size 128k; proxy_connect_timeout 90; proxy_send_timeout 90; proxy_read_timeout 90; proxy_buffer_size 4k; proxy_buffers 4 32k; proxy_busy_buffers_size 64k; proxy_temp_file_write_size 64k; =========== Nginx server file: /etc/nginx/sites-enabled/some-name.txt ========== server { listen 208.109.252.110:80; server_name netconf; autoindex on; access_log /home/site/server_logs/nginx_access.log; error_log /home/site/server_logs/nginx_error.log; location / { proxy_pass http://127.0.0.1:80/; include /etc/nginx/proxy.conf; } location /site_media/ { root /home/site/folder/static; } } ========== Nginx very well proxies the request and passes to apache, the required requests, but doesn't serve the media. In the last server file, location site_media is not served, at all. :( Everything seems perfect to me. What is wrong? Thanks in advance.

  Read the article

• CommunicationException when shutting down JBoss 4.2.2

  - by Brian

  I have deployed an application using JBoss 4.2.2 on a 64-bit RHEL5 server. Since there are other JBoss servers, I had to change some port configurations so that there would be no conflicts when starting the server. So right now I'm using ports-01 from the sample-bindings.xml file that came in the docs/examples/binding-manager/samples directory. In addition, below is a list of all the files I've edited to reflect the new ports: JBOSS_HOME/servers/default/deploy/jboss-web.deployer/server.xml: Changed Connector port - 8080 to 8180 Changed AJP 1.3 Connector port - 8009 to 8109 JBOSS_HOME/server/default/deploy/jbossws.beans/META-INF/jboss-beans.xml Changed 8080 to 8180 JBOSS_HOME/server/default/conf/jboss-service.xml: Changed 8083 to 8183 Changed 1099 to 1299 Changed 1098 to 1298 Changed 4444 to 4644 Changed 4445 to 4645 Changed 4446 to 4646 Changed 4447 to 4647 JBOSS_HOME/server/default/conf/jboss-minimal.xml: Changed 1099 to 1299 Changed 1098 to 1298 When I start the server (binding to localhost) everything is fine and I'm able to access the application. But when I try to shutdown the server I get the following error: Exception in thread "main" javax.naming.CommunicationException: Could not obtain connection to any of these urls: localhost [Root exception is javax.naming.CommunicationException : Failed to connect to server localhost:1099 [Root exception is javax.naming.ServiceUnavailableException: Failed to connect to server localhost:1099 [Root exception is java.net.ConnectException: Connection refused]]] at org.jnp.interfaces.NamingContext.checkRef(NamingContext.java:1562) at org.jnp.interfaces.NamingContext.lookup(NamingContext.java:634) at org.jnp.interfaces.NamingContext.lookup(NamingContext.java:627) at javax.naming.InitialContext.lookup(InitialContext.java:392) at org.jboss.Shutdown.main(Shutdown.java:214) Caused by: javax.naming.CommunicationException: Failed to connect to server localhost:1099 [Root exception is javax.naming.ServiceUnavailableException: Failed to connect to server localhost:1099 [Root exception is java.net.ConnectException: Connection refused]] at org.jnp.interfaces.NamingContext.getServer(NamingContext.java:274) at org.jnp.interfaces.NamingContext.checkRef(NamingContext.java:1533) ... 4 more Caused by: javax.naming.ServiceUnavailableException: Failed to connect to server localhost:1099 [Root exception is java.net.ConnectException: Connection refused] at org.jnp.interfaces.NamingContext.getServer(NamingContext.java:248) ... 5 more Caused by: java.net.ConnectException: Connection refused at java.net.PlainSocketImpl.socketConnect(Native Method) at java.net.PlainSocketImpl.doConnect(PlainSocketImpl.java:333) at java.net.PlainSocketImpl.connectToAddress(PlainSocketImpl.java:195) at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:182) at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:366) at java.net.Socket.connect(Socket.java:525) at java.net.Socket.connect(Socket.java:475) at java.net.Socket.(Socket.java:372) at java.net.Socket.(Socket.java:273) at org.jnp.interfaces.TimedSocketFactory.createSocket(TimedSocketFactory.java:84) at org.jnp.interfaces.TimedSocketFactory.createSocket(TimedSocketFactory.java:77) at org.jnp.interfaces.NamingContext.getServer(NamingContext.java:244) ... 5 more Is there any other file that I need to change the 1099 to 1299, or am I missing some other step?

  Read the article

• PHP app breaks on Nginx, but works on Apache

  - by rizon1990

  I want to migrate a PHP application from Apache to Nginx. The problem is that the App breaks, because the routing doesn't work anymore and I'm not exactly sure how to fix it. The PHP application includes some .htaccess files and I tried to convert those to Nginx. The first one is in the document root: <IfModule mod_rewrite.c> RewriteEngine on RewriteRule ^$ public/ [L] RewriteRule (.*) public/$1 [L] </IfModule> The second one is in /public/ <IfModule mod_rewrite.c RewriteEngine On RewriteCond %{REQUEST_FILENAME} !-f RewriteCond %{REQUEST_FILENAME} !-d # Rewrite all other URLs to index.php/URL RewriteRule ^(.*)$ index.php?url=$1 [PT,L] </IfModule> <IfModule !mod_rewrite.c> ErrorDocument 404 index.php </IfModule> The third and last one is: deny from all My nginx version of it looks like the following: #user nobody; worker_processes 1; #pid logs/nginx.pid; events { worker_connections 1024; } http { include mime.types; default_type application/octet-stream; sendfile on; #tcp_nopush on; keepalive_timeout 65; gzip on; server { listen 8080; server_name localhost; root /Library/WebServer/Documents/admin; location / { index index.php; rewrite ^/$ /public/ break; rewrite ^(.*)$ /public/$1 break; } location /public { if (!-e $request_filename){ rewrite ^(.*)$ /index.php?url=$1 break; } } location /library { deny all; } #error_page 404 /404.html; # redirect server error pages to the static page /50x.html # error_page 500 502 503 504 /50x.html; location = /50x.html { root html; } location ~ \.php$ { root /Library/WebServer/Documents/admin; fastcgi_pass 127.0.0.1:9000; fastcgi_index index.php; fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name; include fastcgi_params; } } } The problem I face is that something that the routing is broken and just returns a 404 page instead. Hopefully someone has an idea and know how to fix it ;) Thanks EDIT I got it working with this config location /library { deny all; } location ~* ^.+.(jpg|jpeg|gif|png|ico|css|zip|tgz|gz|rar|bz2|doc|xls|exe|pdf|ppt|txt|tar|mid|midi|wav|bmp|rtf|js)$ { access_log off; rewrite ^(.*)$ /public/$1 break; } location / { rewrite ^/(.+)$ /index.php?url=$1 last; } I'm sure there are better solutions and I'm open for suggestions.

  Read the article

• Mercurial browser on Windows 2003 takes several refreshes before displaying repositories

  - by Tim Murphy

  When attempt to browse my Mercurial repositories it usually takes several refreshes before the repository list is displayed. The configuration is as follows: Windows Server 2003 (Dedicated machine hosted by http://www.server4you.com/. Site has anonymous password protection with self-signed SSL. Mercurial 1.5.3 Python 2.6.5 Python for Windows 32 extensions 214 py2.6 isapi-wsgi 0.4.2 The repositories are being served via ISAPI using the standard hgwebdir_wspi.py file (copy to follow). Other problems with the repository server: Before doing a clone/push/etc I have to browse the repositories first otherwise hg on my local machine can not locate the site. I have one a repository with a large changeset that after a minute or so throw error "abort: error: An existing connection was forcibly closed by the remote host". Will be asking another question for this problem. What can I do to start tracking down this problem? hgwebdir_wsgi.py # Configuration file location hgweb_config = r'C:\Public\Mercurial\WebSite\hgweb.config' # Global settings for IIS path translation path_strip = 0 # Strip this many path elements off (when using url rewrite) path_prefix = 0 # This many path elements are prefixes (depends on the # virtual path of the IIS application). import sys # Adjust python path if this is not a system-wide install #sys.path.insert(0, r'c:\path\to\python\lib') # Enable tracing. Run 'python -m win32traceutil' to debug if hasattr(sys, 'isapidllhandle'): import win32traceutil # To serve pages in local charset instead of UTF-8, remove the two lines below import os os.environ['HGENCODING'] = 'UTF-8' import isapi_wsgi from mercurial import demandimport; demandimport.enable() from mercurial.hgweb.hgwebdir_mod import hgwebdir # Example tweak: Replace isapi_wsgi's handler to provide better error message # Other stuff could also be done here, like logging errors etc. class WsgiHandler(isapi_wsgi.IsapiWsgiHandler): error_status = '500 Internal Server Error' # less silly error message isapi_wsgi.IsapiWsgiHandler = WsgiHandler # Only create the hgwebdir instance once application = hgwebdir(hgweb_config) def handler(environ, start_response): # Translate IIS's weird URLs url = environ['SCRIPT_NAME'] + environ['PATH_INFO'] paths = url[1:].split('/')[path_strip:] script_name = '/' + '/'.join(paths[:path_prefix]) path_info = '/'.join(paths[path_prefix:]) if path_info: path_info = '/' + path_info environ['SCRIPT_NAME'] = script_name environ['PATH_INFO'] = path_info return application(environ, start_response) def __ExtensionFactory__(): return isapi_wsgi.ISAPISimpleHandler(handler) if __name__=='__main__': from isapi.install import * params = ISAPIParameters() HandleCommandLine(params) hgweb.config [paths] / = C:\Public\Mercurial\Repositories\* [web] allow_archive = bz2 gz zip ; Allows archive downloads. allow_push = ######## ; Users that are allowed to push.

  Read the article

< Previous Page | 240 241 242 243 244 245 246 247 248 249 250 251  | Next Page >