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From "dhruba borthakur (JIRA)" <j...@apache.org>
Subject [jira] Created: (HDFS-611) Heartbeats times from Datanodes increase when there are plenty of blocks to delete
Date Thu, 10 Sep 2009 08:07:57 GMT
Heartbeats times from Datanodes increase when there are plenty of blocks to delete
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                 Key: HDFS-611
                 URL: https://issues.apache.org/jira/browse/HDFS-611
             Project: Hadoop HDFS
          Issue Type: Bug
          Components: data-node
            Reporter: dhruba borthakur
            Assignee: dhruba borthakur


I am seeing that when we delete a large directory that has plenty of blocks, the heartbeat
times from datanodes increase significantly from the normal value of 3 seconds to as large
as 50 seconds or so. The heartbeat thread in the Datanode deletes a bunch of blocks sequentially,
this causes the heartbeat times to increase.

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