2012年11月10日 · The service is unavailable occurs if the Application Pool of the corresponding Wep Application is Stopped or Disabled or Paused. or The given user Identity of Application Pool may be invalid due to expired password or locked.

2024年8月26日 · The "503 Service Unavailable" message typically appears when the application pool is in a stopped state. But why would an application pool be stopped, especially when it should be running to support website usage? Surprisingly, it’s IIS that stops it. Sounds strange? It might at first, but there’s a reason behind this.

2020年9月28日 · The 503 response from the IIS machine, Service Unavailable, is the result of repeated application crashes. Since the w3wp.exe worker process, created by IIS to execute a web application, is crashing frequently, the respective IIS application pool is turned off.

Sometimes, in production servers, it can as well be that you get too much traffic for the tomcat server, apache handle more request than the proxyied service (tomcat) can accept so the backend became unavailable.

2015年12月22日 · You get the 503 when your app pool shuts down because your site is erroring a lot. Prevent the errors, prevent the 503. Whether you do that by adding try-catch everywhere or by handling them elsewhere is up to you.

2017年3月10日 · Return code is: 503, ReasonPhrase:Service Temporarily Unavailable. and 'parent.relativePath' points at wrong local POM @ line 3, column 11 -> How do I resolve this error? maven

Recently I got service unavailable 503 for my spring boot application. It is not in google cloud. Reason was application was running in default port ( 8080 ). On changing server.port to 10280. Load balancer able to communicate with the application.

2013年10月29日 · Such 503 errors were encountered on our side on Windows Server 2019 while setting up a fresh new Classic ASP website. In fact, in the App Pool, setting " .NET CLR Version " to " No Managed code " caused the App Pool to stops 2 seconds after being started, thus generating WAS 5002 and 5021 errors in the Windows Event Log.

2012年1月11日 · A 503 status indicates the service handling the request is unavailable. The server is currently unable to handle the request due to a temporary overloading or maintenance of the server. - HTTP Specification on 503. From time-to-time you'll see this if you're running Tomcat behind Apache, with Apache operating as a proxy.

2023-05-02 13:23:24 | Response status code does not indicate success: 503 (Service Unavailable). 2023-05-02 13:25:39 | Response status code does not indicate success: 503 (Service Unavailable). 2023-05-02 13:27:54 | Response status code does not indicate success: 503 (Service Unavailable).