[
https://issues.apache.org/jira/browse/HDFS-2982?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Eli Collins updated HDFS-2982:
------------------------------
Target Version/s: 2.0.1 (was: HA branch (HDFS-1623), 0.24.0)
Affects Version/s: (was: 0.24.0)
2.0.0
> Startup performance suffers when there are many edit log segments
> -----------------------------------------------------------------
>
> Key: HDFS-2982
> URL: https://issues.apache.org/jira/browse/HDFS-2982
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: name-node
> Affects Versions: 2.0.0
> Reporter: Todd Lipcon
> Assignee: Todd Lipcon
> Priority: Critical
> Attachments: HDFS-2982.001.patch
>
>
> For every one of the edit log segments, it seems like we are calling
> listFiles on the edit log directory inside of {{findMaxTransaction}}. This is
> killing performance, especially when there are many log segments and the
> directory is stored on NFS. It is taking several minutes to start up the NN
> when there are several thousand log segments present.
--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators:
https://issues.apache.org/jira/secure/ContactAdministrators!default.jspa
For more information on JIRA, see: http://www.atlassian.com/software/jira
