Debugging 503 Error
Contents |
of the Fastly web interface. Service guides for the next web interface can be error 503 iis accessed at docs-next.fastly.com. For more information see our announcement. Guides
How To Fix Http Error 503. The Service Is Unavailable
Quick Start Guide Account management User access and control Account management and security Account types and
Http Error 503 The Service Is Unavailable Application Pool Stopped
billing Customer support Compliance and law About our terms Compliance Security measures Third-party technology Related offerings Translations Archives Basic setup Basic setup Basic configuration About
Service Unavailable Http Error 503. The Service Is Unavailable.
Fastly services Advanced setup Securing communications Purging Developer's tools Access Control Lists API Caching Conditions Edge Dictionaries VCL Tutorials Diagnostics and performance Streaming logs Debugging Performance tuning Security Migrations and integrations Migrations Integrations Online video streaming Live streaming On-the-fly packaging Home Guides Debugging [JA] 日本語 Common 503 errors Varnish, the software that http error 503 the service is unavailable on localhost runs on the Fastly CDN, will sometimes return standardized 503 responses due to various issues that can occur when attempting to fetch data from your origin servers. The generic status text associated with a 503 error is "Service Unavailable." It can mean a wide variety of things. The most common reasons this generic text appears include: The origin server generated a 503 error and Fastly passed it through as is. The origin returned a 503 error without a response header, so Fastly used the default response. The status line of the HTTP response from the origin was not parseable. VCL code was run that used the "error" statement without an appropriate response status (e.g., error 503 instead of error 503 "_broken thing_"). The following list provides the most common non-generic, standardized 503 responses and basic explanations for each. WARNING: If you are seeing 503 errors, do not purge all cached content. Pur
Web Platform Installer Get Help: Ask a Question in our Forums More Help Resources Blogs Forums Home IIS.NET Forums IIS 7 and Above iis application pool keeps stopping Classic ASP Service Unavailable : HTTP Error 503. The service is the module dll c:\windows\system32\inetsrv\rewrite.dll failed to load. the data is the error. unavailable. Service Unavailable : HTTP Error 503. The service is unavailable. [Answered]RSS 19 replies Last post Dec service unavailable iis 05, 2013 11:06 PM by kombsh ‹ Previous Thread|Next Thread › Print Share Twitter Facebook Email Shortcuts Active Threads Unanswered Threads Unresolved Threads Advanced Search Reply lucky108 10 https://docs.fastly.com/guides/debugging/common-503-errors Posts Service Unavailable : HTTP Error 503. The service is unavailable. Nov 12, 2011 01:56 AM|lucky108|LINK Hi i have problem in IIS 7 and classic asp web sites, i received following error. Error: Service Unavailable : HTTP Error 503. The service is unavailable. 1. This is not happened in entire web site, only the particular http://forums.iis.net/t/1183179.aspx?Service+Unavailable+HTTP+Error+503+The+service+is+unavailable+ /reports/ directory. 2. Same problem has been occurred in 4 web sites and same directory (/reports/). 3. Problem has been resolved when i am using HTTPS protocol. but this is only temporary solution. 4. i reinstalled IIS server, after also i received same error. can any one please give me a solution on this issue, this is help full for me. i am facing problem in last 3 months. iis The service is unavailable Service Unavailable HTTP Error 503 Motivation is the first step to success. Rajesh Twitter Reply HCamper 7929 Posts Re: Service Unavailable : HTTP Error 503. The service is unavailable. Nov 12, 2011 02:17 AM|HCamper|LINK Hi, Start with Mike's Trouble Shooting guide http://forums.iis.net/t/1144449.aspx. The first steps are Turn On and Enable "Failed Requests Tracing" guide for ASP Errors http://learn.iis.net/page.aspx/565/using-failed-request-tracing-to-troubleshoot-classic-asp-errors/. The use Mike's Guide to track the problems with the Reports directory and code. Common problem is the "Application Pools" http://learn.iis.net/page.aspx/624/application-pool-identities/process mode. The solution depends on your fixing the Reports code p
Application AccelerationCase StudiesTestimonialsBenchmarksPartnersHosting PartnersTechnology PartnersSupport PartnersPartner ProgramSupportServicesForumWikiDocumentationDownloadsStore Log in or Sign up LiteSpeed Support Forums Forums > LiteSpeed Web Server > General > How to debug 503 Service Unavailable error Discussion in 'General' started by eugene_b, Apr 5, 2012. eugene_b New Member Hello, We are http://www.litespeedtech.com/support/forum/threads/how-to-debug-503-service-unavailable-error.5828/ using dompdf library which is a php library that converts html to https://decoupledlogic.wordpress.com/2013/06/13/iis-http-error-503-the-service-is-unavailable/ pdf. And for some html documents we are trying to convert, server outputs 503 error (the server is cpanel litespeed). The error is consistent and always happens for a given document. However if I start taking away some stuff from the document, it starts working at some point. I also tried error 503 taking away different pieces of the document and it seems that the error is not specific to some piece, but rather to the total size of the document. That led me to believe that the server is hitting some memory limit. However when I created a test script that overloads the memory and ran it on the same server, the behavior was normal: the service is it was gradually using up the memory and then died with php's memory error when it did hit the right limit. Then I decided to test against script run-time in case it's an infinite loop. The script in question fails with 503 error after 35 seconds of execution. A test script that just waits for 60 seconds, doesn't fail at all. So I am a little lost and would appreciate some help debugging this. I tried searching through forum and checking multiple log files but didn't find anything useful. Could you let me know how I should approach the problem, i.e. how can I get from the server anything more descriptive than 503. We tried increasing different configs in litespeed admin area but that didn't help too. eugene_b, Apr 5, 2012 #1 webizen New Member what's your PHP version? memory_limit (shown in phpinfo page), memory limit (soft/hard) in lsphp5? paste snippet of the script in question to help us duplicate the issue. also the message around 503 error in the error_log. webizen, Apr 6, 2012 #2 eugene_b New Member The PHP version is 5.2.8 memory_lim
I found an excellent post on troubleshooting IIS issues, Troubleshooting IIS7 503 “Service unavailable” errors with startup debugging by Mike Volodarsky. I am just documenting some of the things that were a little different for me. I am running Windows 7 and IIS 7. I downloaded Windows Software Development Kit (SDK) for Windows 8 from http://msdn.microsoft.com/en-US/windows/hardware/hh852363 and only installed the debugger to the default location. This made the path to the debugger executable C:\Program Files (x86)\Windows Kits\8.0\Debuggers\x64\ntsd.exe. I used regedit to add the w3wp.exe Registry Key (HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\w3wp.exe) with the Debugger string value of C:\Program Files (x86)\Windows Kits\8.0\Debuggers\x64\ntsd.exe -server npipe:pipe=w3wp -g. I also added C:\Program Files (x86)\Windows Kits\8.0\Debuggers\x64\windbg.exe to my Path to make it easy to start in command line. Unfortunately, I didn't need to go through all of that. I never got the debugger to attach because the Worker Process wouldn't start. After some experimenting I decided to change the Application Pool for my web application and the app came up. I looked at the old Application Pool and noticed something that didn't hit me before. I spent 2 hours researching and poking around and my real error in this instance was the Application Pool I created for my web application was assigned to my local Windows account. When I was forced to update my password the password did not update on the Application Pool. So, updating the password fixed my issue. I have since created a new Windows account specifically for this web app that doesn't have a password that expires. Anyway, it was a nice exercise getting windbg up and running. Maybe I will really need it one day. Fun Stuff! *Safety Note: Use the Windows Debugger Install instructions above at your own risk. It may affect your Visual Studio Debugger. Share this:TwitterFacebookLinkedInGoogleTumblrEmailRedditLike this:Like Loading... Related Written by Charles Posted in Debugging Tagged with application pool, iis, windbg, worker process Leave a Reply Cancel reply Enter your comment here... Fill in your details below or click an icon to log i