Why sometimes I get ‘Service Unavailable’ message on my site?

[spencer]

You will get the answer for this error message, if you go to your Server > Administrative Tools>Event Viewer>There will be following W3SVC-WP (IIS6) error messages:

- Could not load all ISAPI filters for site/service. Therefore startup aborted
or
- The HTTP Filter DLL C:\WINDOWS\System32\RpcProxy\RpcProxy.dll failed to load. The data is the error.

Resolution for the error:

1) You’ll need to do following two things,
Web Sites->Properties-> remove ISAPI filters & disable this filter in Web Server Extensions).
then restart IIS.

2) Now again check the logs and look for the following appear:

a) The identity of application pool 'mydomain.com(pool)' is invalid,
the World Wide Web Publishing Service can not create a worker process to serve the application pool. Therefore, the application pool has been disabled.

This is root cause of "service unavailable"

b) A failure was encountered while launching the process serving application pool 'mydomain.com(pool)'. The application pool has been disabled.


For this, you’ll need to reset password for user IUSR_mydomain.com serving the application pool of mydomain.com, set the same values for identities of Web Sites->domain.com and Application Pools->domain.com(pool).

Now restart this application pool for mydomain.com and it’d now work without errors. :dancing:

[bill mates]

Can anyone help me to solve this issues,I am facing following problems with my websites:-

1) "service unavailable" errors on the main page or others

2) The session was expiring for each and every minute

[spencer]

Hi,

1) "service unavailable" errors on the main page or others

As this service unavailable message is displayed on your home page of your website, you'll need to check its application pool, whether its crashed/stuck. Very often if website demands more resources from its worker process, and if worker process fails to server them, it gets crashed, resulting in to Service unavailable for the website.

2) The session was expiring for each and every minute

If its happening for every single minute, you will need to increase its session time out expire time.