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https://issues.apache.org/jira/browse/HDFS-5270?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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zhangduo reopened HDFS-5270:
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Assignee: zhangduo (was: Haohui Mai)
> Use thread pools in the datenode daemons
> ----------------------------------------
>
> Key: HDFS-5270
> URL: https://issues.apache.org/jira/browse/HDFS-5270
> Project: Hadoop HDFS
> Issue Type: Improvement
> Components: datanode
> Reporter: Haohui Mai
> Assignee: zhangduo
> Labels: BB2015-05-TBR
> Attachments: HDFS-5270.000.patch, HDFS-5270.2.patch,
> TestConcurrentAccess.java
>
>
> The current implementation of the datanode creates a thread when a new
> request comes in. This incurs high overheads for the creation / destruction
> of threads, making the datanode unstable under high concurrent loads.
> This JIRA proposes to use a thread pool to reduce the overheads.
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