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Confluence 504 error

Hi Team,

Confluence is returning 502 bad gateway error. I have done some analysis from the logs but need some concrete evidences for the exact root cause of the issue.

Can someone help me on the conclusion of the RCA?

I am sharing the logs for the reference.

07-Dec-2022 08:56:05.132 WARNING [Catalina-utility-2] org.apache.catalina.valves.StuckThreadDetectionValve.notifyStuckThreadDetected Thread [http-nio-8090-exec-14 url: /pages/editpage.action; user: nessi] (id=[726]) has been active for [69,133] milliseconds (since [12/7/22 8:54 AM]) to serve the same request for https://confluence.telefonica.de/pages/editpage.action?pageId=72016705 and may be stuck (configured threshold for this StuckThreadDetectionValve is [60] seconds). There is/are [1] thread(s) in total that are monitored by this Valve and may be stuck.

 

2022-12-07 03:03:31,878 WARN [hz.confluence.cached.thread-7] [hazelcast.nio.tcp.TcpIpConnectionErrorHandler] log [10.110.97.232]:5801 [confluence] [3.12.11] Removing connection to endpoint [10.110.97.63]:5801 Cause => java.net.SocketException {Connection refused to address /10.110.97.63:5801}, Error-Count: 5 2022-10-07 03:03:31,879 WARN [hz.confluence.cached.thread-7] [internal.cluster.impl.MembershipManager] log [10.110.97.232]:5801 [confluence] [3.12.11] Member [10.110.97.63]:5801 - aa73a19d-5bf9-4dd7-b3dd-560159969aab is suspected to be dead for reason: No connection

 

2022-12-06 14:08:19,905 INFO [Catalina-utility-1] [confluence.cluster.hazelcast.HazelcastClusterManager] startCluster Starting the cluster. 2022-10-06 14:08:19,912 WARN [Catalina-utility-1] [com.hazelcast.instance.HazelcastInstanceFactory] log Hazelcast is starting in a Java modular environment (Java 9 and newer) but without proper access to required Java packages. Use additional Java arguments to provide Hazelcast access to Java internal API. The internal API access is used to get the best performance results. Arguments to be used:

 

2022-12-07 08:56:26,051 WARN [JIRAMetadataPlugin_AggregateProvider:thread-4] [metadata.jira.helper.JiraMetadataErrorHelper] printError The server 'JIRA' cannot be reached
  2022-12-07 08:56:27,483 WARN [JIRAMetadataPlugin_AggregateProvider:thread-5] [metadata.jira.helper.JiraMetadataErrorHelper] printError The server 'JIRA' cannot be reached
  2022-12-07 08:56:28,804 WARN [JIRAMetadataPlugin_AggregateProvider:thread-3] [metadata.jira.helper.JiraMetadataErrorHelper] printError The server 'JIRA' cannot be reached

 

ERROR [JIM Marshaller:thread-678] [extra.jira.util.JiraUtil] checkForErrors Received HTTP 502 from server. Error message: Bad Gateway

Awaiting for the response.

 

Thank you!

1 answer

0 votes

Hi @Kanaka Ponnuru Prasad ,

error seems related to your confluence performance. There is a thread stuck. First of all verify jvm parameters and cpu (please share your current settings). Moreover you can follow this article in order to put in place a perfomance tuning of your instance https://confluence.atlassian.com/doc/performance-tuning-130289.html

Hope this helps,

Fabio

@Fabio Racobaldo _Herzum_ ,

Thank you the prompt response.

You have mentioned that there is a Thread Stuck >>>>>>>>>

    Is there any impact due to this Thread stuck? If so what is the measure to be taken in order to prevent from next time onwards.

Confluence error.png

Error is related to Bad gateway and seems like networking issue  and a 502 error is usually not something you can fix, but requires a fix by the web server or the proxies you are trying to get access through.>>>>> I read from one of the article above line.

Can this be neglected? how it will be

Thank you!

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