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From "Zhe Zhang (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HDFS-8178) QJM doesn't move aside stale inprogress edits files
Date Thu, 30 Apr 2015 22:02:06 GMT

     [ https://issues.apache.org/jira/browse/HDFS-8178?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Zhe Zhang updated HDFS-8178:
----------------------------
    Attachment: HDFS-8178.002.patch

We can also combine this patch with HDFS-8303 and close one of them as dup.

> QJM doesn't move aside stale inprogress edits files
> ---------------------------------------------------
>
>                 Key: HDFS-8178
>                 URL: https://issues.apache.org/jira/browse/HDFS-8178
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: qjm
>            Reporter: Zhe Zhang
>            Assignee: Zhe Zhang
>         Attachments: HDFS-8178.000.patch, HDFS-8178.002.patch
>
>
> When a QJM crashes, the in-progress edit log file at that time remains in the file system.
When the node comes back, it will accept new edit logs and those stale in-progress files are
never cleaned up. QJM treats them as regular in-progress edit log files and tries to finalize
them, which potentially causes high memory usage. This JIRA aims to move aside those stale
edit log files to avoid this scenario.



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