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From "Takanobu Asanuma (Jira)" <j...@apache.org>
Subject [jira] [Comment Edited] (HDFS-14934) [SBN Read] Standby NN throws many InterruptedExceptions when dfs.ha.tail-edits.period is 0
Date Tue, 29 Oct 2019 08:45:00 GMT

    [ https://issues.apache.org/jira/browse/HDFS-14934?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16961814#comment-16961814
] 

Takanobu Asanuma edited comment on HDFS-14934 at 10/29/19 8:44 AM:
-------------------------------------------------------------------

Sorry I haven't found the fix. If increasing {{dfs.ha.tail-edits.period.backoff-max}} (like
10s), we can reduce the warn log frequency.


was (Author: tasanuma0829):
Sorry I haven't find the fix. If increasing {{dfs.ha.tail-edits.period.backoff-max}} (like
10s), we can reduce the warn log frequency.

> [SBN Read] Standby NN throws many InterruptedExceptions when dfs.ha.tail-edits.period
is 0
> ------------------------------------------------------------------------------------------
>
>                 Key: HDFS-14934
>                 URL: https://issues.apache.org/jira/browse/HDFS-14934
>             Project: Hadoop HDFS
>          Issue Type: Bug
>            Reporter: Takanobu Asanuma
>            Priority: Major
>
> When dfs.ha.tail-edits.period is 0ms (or very short-time), there are many warn logs in
standby NN.
> {noformat}
> 2019-10-25 16:25:46,945 [Logger channel (from parallel executor) to <nn hostname>/<ip
address>:<port>] WARN  concurrent.ExecutorHelper (ExecutorHelper.java:logThrowableFromAfterExecute(55))
- Thread (Thread[Logger channel (from parallel executor) to <nn hostname>/<ip address>:<port>,5,main])
interrupted: 
> java.lang.InterruptedException
> 	at com.google.common.util.concurrent.AbstractFuture.get(AbstractFuture.java:509)
> 	at com.google.common.util.concurrent.FluentFuture$TrustedFuture.get(FluentFuture.java:82)
> 	at org.apache.hadoop.util.concurrent.ExecutorHelper.logThrowableFromAfterExecute(ExecutorHelper.java:48)
> 	at org.apache.hadoop.util.concurrent.HadoopThreadPoolExecutor.afterExecute(HadoopThreadPoolExecutor.java:90)
> 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1157)
> 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
> 	at java.lang.Thread.run(Thread.java:748)
> {noformat}



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