Shuyan Zhang created HDFS-17154:
-----------------------------------
Summary: EC: Fix bug in updateBlockForPipeline after failover
Key: HDFS-17154
URL: https://issues.apache.org/jira/browse/HDFS-17154
Project: Hadoop HDFS
Issue Type: Bug
Reporter: Shuyan Zhang
In the method `updateBlockForPipeline`, NameNode uses the
`BlockUnderConstructionFeature` of a BlockInfo to generate the member
`blockIndices` of `LocatedStripedBlock`.
And then, NameNode uses `blockIndices` to generate block tokens for client.
However, if there is a failover, the location info in
BlockUnderConstructionFeature may be incomplete, which results in the absence
of the corresponding block tokens.
When the client receives these incomplete block tokens, it will throw a NPE
because `updatedBlks[i]` is null.
NameNode should just return block tokens for all indices to the client. Client
can pick whichever it likes to use.
--
This message was sent by Atlassian Jira
(v8.20.10#820010)
---------------------------------------------------------------------
To unsubscribe, e-mail: hdfs-dev-unsubscr...@hadoop.apache.org
For additional commands, e-mail: hdfs-dev-h...@hadoop.apache.org
