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Posted to dev@hbase.apache.org by "Sergey Shelukhin (JIRA)" <ji...@apache.org> on 2013/01/11 19:34:12 UTC

[jira] [Resolved] (HBASE-7316) HBase region server retries are not always smart. Make smarter/replace with request timeouts?

     [ https://issues.apache.org/jira/browse/HBASE-7316?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Sergey Shelukhin resolved HBASE-7316.
-------------------------------------

    Resolution: Invalid

bad jira on my part, no "done" criteria
                
> HBase region server retries are not always smart. Make smarter/replace with request timeouts?
> ---------------------------------------------------------------------------------------------
>
>                 Key: HBASE-7316
>                 URL: https://issues.apache.org/jira/browse/HBASE-7316
>             Project: HBase
>          Issue Type: Brainstorming
>          Components: Client
>            Reporter: Sergey Shelukhin
>            Priority: Minor
>
> Example can be seen in HBASE-7250.
> Server A has region, region is moved to B, B dies, region starts moving to C.
> Client goes to A, A sends him to B, B is dead so he refreshes meta (which has A), it goes to A, which sends it to B, ...
> These retries are unnecessary.
> Overall, I wonder if retry policy should be replaced by timeout policy, preferably configurable on per-request basis by client? That sounds like a reasonable feature to me, so if the timeout is set to high values retries will not be exhausted due to situations like this.

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