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https://issues.apache.org/jira/browse/HDFS-16596?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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ZanderXu resolved HDFS-16596.
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Resolution: Duplicate
> Improve the processing capability of FsDatasetAsyncDiskService
> --------------------------------------------------------------
>
> Key: HDFS-16596
> URL: https://issues.apache.org/jira/browse/HDFS-16596
> Project: Hadoop HDFS
> Issue Type: Improvement
> Reporter: ZanderXu
> Assignee: ZanderXu
> Priority: Major
> Labels: pull-request-available
> Time Spent: 1h 10m
> Remaining Estimate: 0h
>
> In our production environment, when DN needs to delete a large number blocks,
> we find that many deletion tasks are backlogged in the queue of
> threadPoolExecutor in FsDatasetAsyncDiskService. We can't improve its
> throughput because the number of core threads is hard coded.
> So DN needs to support the number of core threads of
> FsDatasetAsyncDiskService can be configured.
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