ArrayIndexOutOfBoundException in BlocksMap
------------------------------------------
Key: HADOOP-1904
URL: https://issues.apache.org/jira/browse/HADOOP-1904
Project: Hadoop
Issue Type: Bug
Affects Versions: 0.15.0
Reporter: Konstantin Shvachko
Assignee: Konstantin Shvachko
Priority: Blocker
Fix For: 0.15.0
Attachments: RedundantAddBlock.patch
If the name-node receives a duplicate report of a written block from a
data-node it does not insert
the block into the block map but mistakenly inserts it into the list of blocks
belonging to the data-node,
placing it into the beginning of the list. Since the block is not removed from
the list prior to the insertion,
the list itself becomes corrupted.
This patch fixes the problem. I also reorganized the add/removeNode and
add/removeBlock methods
in order to avoid similar bugs in the future.
--
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.
