Error 503 Guru Meditation Varnish Cache Server
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few causes of (and solutions to) this Varnish 503 error. Before we start One of the most confusing (but nonetheless very cool) things about Varnish is that it does not store any
What Does Varnish Cache Server Mean
logs on disk. All log entries go directly into memory. This allows guru meditation error gba emulator for better performance and efficient disk usage. So to view the logs, you'll have to fire the following command: varnishlog what is varnish cache server Once the command is running, load up a page from your website on your browser and look for any errors. This literally means looking for the word "error". Pretty sweet, huh! Now let's https://en.wikipedia.org/wiki/Guru_Meditation get on to our first solution. Solution 1 - General check Most of the times, Varnish 503 means Varnish cannot connect with your backend (Apache, Nginx, etc…). So you should start from there. The first thing is to make sure your backend is correctly configured. That means making sure your Apache/Nginx/whatever is running properly before installing Varnish. If you've installed Varnish on a properly running instance, then you might just http://www.technoreply.com/solving-dreaded-varnish-503-error/ check that installing Varnish hasn't done anything funny to your Apache configurations. Here's what you can do: Open your Varnish configuration file. Mine was in /etc/varnish/user.vcl backend default { .host = "127.0.0.1"; .port = "8888"; .connect_timeout = 1s; } We can see that Varnish is trying to connect to port 8888 on the same machine. But is our backend responding correctly there? Let's try this (make sure you run this on your server, this port will probably be blocked to the outside world): wget http://www.your-site.com:8888 This will create an HTML file with the output in your current directory. Open the file and see if it matches your website's homepage. If it does not, then you need to configure your server. This is beyond the scope of this post, I'll advise you to check the Linode Library for resources. Solution 2 - Increase timeouts A frequent cause of Varnish 503 errors is timeouts between Varnish and your backend. This is quite easy to solve. Open your Varnish configuration file (mine was in /etc/varnish/user.vcl) and add these lines: backend default { .host = "127.0.0.1"; .port = "8888"; .connect_timeout = 1s; # Wait a m
« previous next » Print Pages: [1] Author Topic: Error 503 Service Unavailable...Varnish cache server (Read 2328 times) 0 Members and 9 Guests http://forum.centos-webpanel.com/varnish/error-503-service-unavailable-varnish-cache-server/ are viewing this topic. WebDux Newbie Posts: 8 Just want to do better websites... Error 503 Service Unavailable...Varnish cache server « 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:QuoteError 503 Service UnavailableService UnavailableGuru Meditation:XID: 2116764197Varnish cache serverAfter I refesh the page, it will guru meditation 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 Logged I focus on Magento, Drupal, WordPress and LNAMP.English Blog: http://www.webdux.com , Chinese Blog: http://www.caosir.com , Company website: http://www.ebaishun.com Administrator Administrator Hero Member Posts: 1259 Don't forget to donate Re: Error 503 varnish cache server Service Unavailable...Varnish cache server « Reply #1 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. Logged AntiDDoS Protection (web + mail)http://centos-webpanel.com/website-ddos-protection-proxyJoin our Development Team and get paid !http://centos-webpanel.com/develope-modules-for-cwpServices Monitoring & RBL Monitoringhttp://centos-webpanel.com/services-monitorDo you need Fast and FREE Support included for your CWP linux server?http://centos-webpanel.com/noc-partner-list Installation Instructionshttp://centos-webpanel.com/installation-instructionsGet Fast Support Herehttp://centos-webpanel.com/support-services WebDux Newbie Posts: 8 Just want to do better websites... Re: Error 503 Service Unavailable...Varnish cache server « Reply #2 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 advanc