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From "nkeywal (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-7948) client doesn't need to refresh meta while the region is opening
Date Fri, 01 Mar 2013 09:33:12 GMT

    [ https://issues.apache.org/jira/browse/HBASE-7948?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13590368#comment-13590368
] 

nkeywal commented on HBASE-7948:
--------------------------------

I like the idea. The coding is clean.
Actually, I'm not a big fan of the cache timeout. I think we have an history to not trust
the assignment, and it burnt us in the past (double assignment caused by the time out manager
for example). In this specific patch it's less risky, and it won't break the system, but I
think we should trust the region server. It says it's opening the region, then we wait for
it. If the region server is buggy, we should fix the root issue (we're risking data corruption
here), and if it is just slow, there may be a root cause for that, and not adding any workload
to meta seems better in this situation.
                
> client doesn't need to refresh meta while the region is opening
> ---------------------------------------------------------------
>
>                 Key: HBASE-7948
>                 URL: https://issues.apache.org/jira/browse/HBASE-7948
>             Project: HBase
>          Issue Type: Improvement
>            Reporter: Sergey Shelukhin
>            Assignee: Sergey Shelukhin
>         Attachments: HBASE-7948-v0.patch, HBASE-7948-v1.patch, HBASE-7948-v1.patch
>
>


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