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https://issues.apache.org/jira/browse/NIFI-7035?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17017057#comment-17017057
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Shawn Weeks commented on NIFI-7035:
-----------------------------------
I'll try and track down the exact scenario that causes this but it's happen to
me several times and some other folks on Slack.
> Don't spam logs with Apache Curator errors on Zookeeper Disconnect
> ------------------------------------------------------------------
>
> Key: NIFI-7035
> URL: https://issues.apache.org/jira/browse/NIFI-7035
> Project: Apache NiFi
> Issue Type: Improvement
> Reporter: Shawn Weeks
> Priority: Trivial
>
> Sometimes when you startup NiFi and not all of the Zookeeper nodes aren't up
> it fills the logs with Apache Curator errors like this one. We should be able
> to improve this a bit as logging the same error repeatedly isn't helpful.
> {code:java}
> 2020-01-16 08:58:28,767 ERROR [Curator-Framework-0]
> o.a.c.f.imps.CuratorFrameworkImpl Background retry gave up
> org.apache.curator.CuratorConnectionLossException: KeeperErrorCode =
> ConnectionLoss
> at
> org.apache.curator.framework.imps.CuratorFrameworkImpl.performBackgroundOperation(CuratorFrameworkImpl.java:972)
> at
> org.apache.curator.framework.imps.CuratorFrameworkImpl.backgroundOperationsLoop(CuratorFrameworkImpl.java:943)
> at
> org.apache.curator.framework.imps.CuratorFrameworkImpl.access$300(CuratorFrameworkImpl.java:66)
> at
> org.apache.curator.framework.imps.CuratorFrameworkImpl$4.call(CuratorFrameworkImpl.java:346)
> at java.util.concurrent.FutureTask.run(FutureTask.java:266)
> at
> java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
> at
> java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
> at
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
> at java.lang.Thread.run(Thread.java:748)
> {code}
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