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https://issues.apache.org/jira/browse/HDFS-11094?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15630481#comment-15630481
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Mingliang Liu commented on HDFS-11094:
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# Will this suppress the heartbeat interval config, and fail other tests?
# As an alternative, can we simply change the unit test?
FWIW, heartbeat is checked asynchronously in {{HeartbeatManager}}. Do we need
to trigger the heartbeat check logic in NN?
{code}
final BlockManager bm = cluster.getNamesystem().getBlockManager();
// trigger NN handel heartbeat
BlockManagerTestUtil.checkHeartbeat(bm);
{code}
> TestLargeBlockReport fails intermittently
> -----------------------------------------
>
> Key: HDFS-11094
> URL: https://issues.apache.org/jira/browse/HDFS-11094
> Project: Hadoop HDFS
> Issue Type: Bug
> Reporter: Eric Badger
> Assignee: Eric Badger
> Attachments: HDFS-11094.001.patch
>
>
> {noformat}
> java.lang.NullPointerException: null
> at
> org.apache.hadoop.hdfs.server.datanode.TestLargeBlockReport.testBlockReportSucceedsWithLargerLengthLimit(TestLargeBlockReport.java:96)
> {noformat}
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