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From "Vinayakumar B (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-9430) waitforloadingfsimage() can be removed since checknnstartup() already ensures image loaded and namenode started.
Date Thu, 03 Dec 2015 13:36:11 GMT

    [ https://issues.apache.org/jira/browse/HDFS-9430?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15037777#comment-15037777
] 

Vinayakumar B commented on HDFS-9430:
-------------------------------------

bq. FsckServlet may not be okay.
{{NamenodeFsck#fsck}} also uses rpcserver for calls. So this also fine.
bq. Also need to check the html and js files.
html and js files completely depends on exposed jmx metrics. None of them call RPCs which
have {{waitForLoadingFsImage()}}.
so thats also fine.

And as mentioned by brahma, all other calls are safeguarded in nnrpc server.
So its good to go.

> waitforloadingfsimage() can be removed since checknnstartup() already ensures image loaded
and namenode started.
> ----------------------------------------------------------------------------------------------------------------
>
>                 Key: HDFS-9430
>                 URL: https://issues.apache.org/jira/browse/HDFS-9430
>             Project: Hadoop HDFS
>          Issue Type: Bug
>            Reporter: Brahma Reddy Battula
>            Assignee: Brahma Reddy Battula
>         Attachments: HDFS-9430.patch
>
>
> After initial startup,loading fsimage in between happens only for secondarynn..But it
wn't server any client requests.
> So IMO it would be ok to remove it.
> Please check commement [here |https://issues.apache.org/jira/browse/HDFS-9413?focusedCommentId=15005129&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-15005129]



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