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https://issues.apache.org/jira/browse/HDFS-16061?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Ayush Saxena resolved HDFS-16061.
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Fix Version/s: 3.3.2
3.2.3
3.4.0
Hadoop Flags: Reviewed
Resolution: Fixed
> DFTestUtil.waitReplication can produce false positives
> ------------------------------------------------------
>
> Key: HDFS-16061
> URL: https://issues.apache.org/jira/browse/HDFS-16061
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: hdfs
> Reporter: Ahmed Hussein
> Assignee: Ahmed Hussein
> Priority: Major
> Labels: pull-request-available
> Fix For: 3.4.0, 3.2.3, 3.3.2
>
> Time Spent: 1h
> Remaining Estimate: 0h
>
> While checking the intermittent failure in
> TestBalancerRPCDelay#testBalancerRPCDelayQpsDefault described in HDFS-15146,
> I found that the implementation of waitReplication is incorrect.
> In the last iteration, when {{correctReplFactor}} is {{false}}, the thread
> sleeps for 1 second, then a {{TimeoutException}} is thrown without check
> whether the replication was complete in the last second.
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