confluence can not access due to 502 bad gataway sometimes

Question

Dear,

We have met the confluence crash once a month.

It always shows the 502 bad gateway or 504 gateway time out.

From the log, we didn't get the useful information.

Can you help me?

lixiyan · Answer

@Yoga Reddy {Appfire}

Thanks for your reply.

I found the issue seems as same as this link:

https://jira.atlassian.com/browse/CONFSERVER-45599

Root Cause

Synchrony-proxy uses Jetty Proxy to handle HTTP requests/responses, and it only recognizes a certain range of characters as legal. Synchrony's date formatter uses the user's default locale, so some non-western (in support cases, mostly Chinese, one Korean case), characters are treated as 'illegal', which results in an HTTP protocol violation, i.e. 502 Bad Gateway error in the browser, 400 internally.

Workaround

(Upgrade to 6.0.2+ if not already) Override the default locale for Synchrony

* Create new file synchrony-args.properties in <home-directory> and add the following lines:user.language=en
user.country=US

* Restart Confluence for changes to take effect

The version we used is 6.0.3. I am not sure whether we could fix this issue by creating the file.

Yoga Reddy {Appfire} · Answer

Hi @lixiyan

Can you also verify the link and it might help you to understand the issue

Thanks

Yoga

JP _AC Bielefeld Leader_ · Answer

Hi,

are you running Confluence behind a proxy/firewall (My guess....)? Check the proxy / firewall settings.

Best

JP