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WebPanel => Apache => Varnish => Topic started by: WebDux on October 05, 2015, 06:40:41 AM

Title: Error 503 Service Unavailable...Varnish cache server
Post by: WebDux on October 05, 2015, 06:40:41 AM

Hi,

I am using CWP, which server is Nginx+Apache+Varnish but I often meet followed error:

Quote

Error 503 Service Unavailable

Service Unavailable

Guru Meditation:

XID: 2116764197

Varnish cache server

After I refesh the page, it will be ok, but I think it's a problem, so if there is anybody could give me some idea to fix that, please?

Thanks in advance,

Xiaotao Cao

Title: Re: Error 503 Service Unavailable...Varnish cache server
Post by: Administrator on October 05, 2015, 06:52:58 PM

firstly you should check your server logs and based on that you can search for issues with your web servers.
it could be apache limits, mod security or something else.

Title: Re: Error 503 Service Unavailable...Varnish cache server
Post by: WebDux on October 06, 2015, 02:05:37 AM

Hi dear Administrator,

I checked /usr/local/apache/logs/error_log and not find the related error about varnish server.

I have to point out that when we meet this error, I just refresh the page then we can go ahead. But we have met this error sever times, so we hope find some way to fix that.

So could you give us some apache limits and mod security tips, please?

Thanks in advance,

Xiaotao Cao

Title: Re: Error 503 Service Unavailable...Varnish cache server
Post by: Administrator on October 06, 2015, 05:07:26 AM

you need to track your server visitors and check performances to optimize the server, if that's the issue.
However, you need to check this issue with experienced system admin or our managed support for more detailed check of your server.

Title: Re: Error 503 Service Unavailable...Varnish cache server
Post by: WebDux on October 06, 2015, 01:30:37 PM

I wonder if your one time support could fix this Error 503 service and solve the Drupal can't create scaled thumbnail image automaticly and do some performance optimize for our server? If you can, I like to use the one time support.

Title: Re: Error 503 Service Unavailable...Varnish cache server
Post by: Igor S. on October 07, 2015, 10:32:24 AM

Hello.

Yes, you can contact with the support service.
But don't forget to tell us how we can reproduce the issue.