[
https://issues.apache.org/jira/browse/HDFS-6622?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14050771#comment-14050771
]
Aaron T. Myers commented on HDFS-6622:
--------------------------------------
Hey Kihwal, I think you might mean HDFS-6618 in the description?
> Rename and AddBlock may race and produce invalid edits
> ------------------------------------------------------
>
> Key: HDFS-6622
> URL: https://issues.apache.org/jira/browse/HDFS-6622
> Project: Hadoop HDFS
> Issue Type: Bug
> Affects Versions: 2.5.0
> Reporter: Kihwal Lee
> Priority: Blocker
>
> While investigating HDFS-6681, we have discovered that rename happening in
> the middle of {{getAdditionalBlock()}} can lead to logging of invalid edit
> entry.
> In {{getAdditionalBlock()}} , the path is resolved once while holding the
> read lock and the same resolved path will be used in the edit log in the
> second half of the method holding the write lock. If a rename happens in
> between two locks, the path may no longer exist.
> When replaying the {{AddBlockOp}}, it will fail with FileNotFound.
--
This message was sent by Atlassian JIRA
(v6.2#6252)
