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https://issues.apache.org/jira/browse/HDFS-15943?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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JiangHua Zhu resolved HDFS-15943.
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Resolution: Won't Do
> Solve that multiple HeartbeatManager#heartbeatCheck() will be executed at the
> same time
> ---------------------------------------------------------------------------------------
>
> Key: HDFS-15943
> URL: https://issues.apache.org/jira/browse/HDFS-15943
> Project: Hadoop HDFS
> Issue Type: Improvement
> Reporter: JiangHua Zhu
> Assignee: JiangHua Zhu
> Priority: Major
>
> In HeartbeatManager#Monitor, due to the lack of more restrictions, multiple
> heartbeatCheck() will be executed at the same time.
> Code:
> if (lastHeartbeatCheck + heartbeatRecheckInterval <now) {
> heartbeatCheck();
> }
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