Plamen Jeliazkov created HDFS-7906:
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Summary: BlockReport of a RUR can have a FINALIZED original
replica from Truncate
Key: HDFS-7906
URL: https://issues.apache.org/jira/browse/HDFS-7906
Project: Hadoop HDFS
Issue Type: Sub-task
Affects Versions: 2.7.0
Reporter: Plamen Jeliazkov
Assignee: Plamen Jeliazkov
HDFS-7886 revealed that there is a new replica state change as part of Truncate.
It is now possible that a FINALIZED replica become a RUR replica with an
original replica pointing back to the FINALIZED replica.
As a result, it is possible to hit an assert in BlockLIstAsLongs.setBlock()
whereby you are trying to add a FINALIZED replica to the ucList because a RUR
only had an under-construction replica prior to Truncate.
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