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From "Aaron T. Myers (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-3518) Provide API to check HDFS operational state
Date Mon, 11 Jun 2012 07:04:43 GMT

    [ https://issues.apache.org/jira/browse/HDFS-3518?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13292664#comment-13292664
] 

Aaron T. Myers commented on HDFS-3518:
--------------------------------------

bq. Seems like the most useful information we can get would be if the NN is in safe mode or
not because the JT can then go into a conservative mode wrt task failures etc. because these
would very likely be related to NN safe mode.

Got it. Makes sense. Perhaps then this JIRA should be "back-port HFDS-2413 to branch-1" ?

bq. HDFS-2413 seems to fit the bill but its committed to the 2.0 line.

I didn't realize that this JIRA was intended only to address an issue in the branch-1 line,
though I should have realized that since the issue description mentions the JT. Mind setting
the affects/targets versions?
                
> Provide API to check HDFS operational state
> -------------------------------------------
>
>                 Key: HDFS-3518
>                 URL: https://issues.apache.org/jira/browse/HDFS-3518
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: hdfs client
>            Reporter: Bikas Saha
>            Assignee: Tsz Wo (Nicholas), SZE
>
> This will improve the usability of JobTracker safe mode.

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