hadoop-hdfs-issues mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Todd Lipcon (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HDFS-457) better handling of volume failure in Data Node storage
Date Mon, 21 May 2012 19:15:42 GMT

     [ https://issues.apache.org/jira/browse/HDFS-457?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Todd Lipcon updated HDFS-457:
-----------------------------

    Fix Version/s: 0.20.203.0

Marking fixed in 0.20.203 as well, since it was long ago committed to branch-0.20-security
in time for that release
                
> better handling of volume failure in Data Node storage
> ------------------------------------------------------
>
>                 Key: HDFS-457
>                 URL: https://issues.apache.org/jira/browse/HDFS-457
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>          Components: data-node
>            Reporter: Boris Shkolnik
>            Assignee: Boris Shkolnik
>             Fix For: 0.20.203.0, 0.21.0
>
>         Attachments: HDFS-457-1.patch, HDFS-457-2.patch, HDFS-457-2.patch, HDFS-457-2.patch,
HDFS-457-3.patch, HDFS-457-y20.patch, HDFS-457.patch, HDFS-457_20-append.patch, HDFS_457.patch,
TestFsck.zip, jira.HDFS-457.branch-0.20-internal.patch
>
>
> Current implementation shuts DataNode down completely when one of the configured volumes
of the storage fails.
> This is rather wasteful behavior because it  decreases utilization (good storage becomes
unavailable) and imposes extra load on the system (replication of the blocks from the good
volumes). These problems will become even more prominent when we move to mixed (heterogeneous)
clusters with many more volumes per Data Node.

--
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

        

Mime
View raw message