Ahmed Hussein created HDFS-16061:
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Summary: 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
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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