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Posted to commits@cassandra.apache.org by "Cyril Scetbon (JIRA)" <ji...@apache.org> on 2018/09/04 14:02:00 UTC
[jira] [Resolved] (CASSANDRA-14686) Jolokia agent not accepting
requests during an operation
[ https://issues.apache.org/jira/browse/CASSANDRA-14686?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Cyril Scetbon resolved CASSANDRA-14686.
---------------------------------------
Resolution: Not A Problem
Assignee: Cyril Scetbon
Looking in the cassandra core code, I didn't find any bridge code between the Jolokia agent and the JMX. I think the issue comes from the agent itself. I'm gonna look at it and try to find what's going on.
> Jolokia agent not accepting requests during an operation
> --------------------------------------------------------
>
> Key: CASSANDRA-14686
> URL: https://issues.apache.org/jira/browse/CASSANDRA-14686
> Project: Cassandra
> Issue Type: Bug
> Components: Core
> Environment: Cassandra 3.11.2
> Ubuntu Xenial
> Jolokia 1.3.7
> Reporter: Cyril Scetbon
> Assignee: Cyril Scetbon
> Priority: Major
>
> I've noticed that when I run a long operation like a rebuild using Jolokia, I can no longer query Jolokia and get a timeout error even when trying to read a simple attribute like the Java version in use :
> {code:java}
> jmx4perl http://cassandra-3.11.2:8778/jolokia read java.lang:type=Runtime SpecVersion
> ERROR: Error while fetching http:// cassandra-3.11.2:8778/jolokia/read/java.lang%3Atype%3DRuntime/SpecVersion :
> 408 Got timeout in 180s
> {code}
> I also removed the default flag [-XX:+PerfDisableSharedMem|https://github.com/apache/cassandra/blob/cassandra-3.11/NEWS.txt#L769-L771] but did not get more luck.
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