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Posted to hdfs-issues@hadoop.apache.org by "farmmamba (Jira)" <ji...@apache.org> on 2024/01/10 10:09:00 UTC
[jira] [Assigned] (HDFS-17335) Add metrics for syncWaitQ in FSEditLogAsync
[ https://issues.apache.org/jira/browse/HDFS-17335?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
farmmamba reassigned HDFS-17335:
--------------------------------
Assignee: farmmamba
> Add metrics for syncWaitQ in FSEditLogAsync
> -------------------------------------------
>
> Key: HDFS-17335
> URL: https://issues.apache.org/jira/browse/HDFS-17335
> Project: Hadoop HDFS
> Issue Type: Improvement
> Components: namenode
> Affects Versions: 3.3.6
> Reporter: farmmamba
> Assignee: farmmamba
> Priority: Minor
>
> To monitor syncWaitQ in FSEditLogAsync, we add a metric syncPendingCount.
> The reason we add this metrics is that when dequeueEdit() return null, the boolean variable doSync is set to {color:#0747a6}+!syncWaitQ.isEmpty()+ {color:#172b4d}After adding this metrics we can better monitor sync performance and codes.{color}{color}
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