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From "Mikhail Antonov (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HBASE-15390) Unnecessary MetaCache evictions cause elevated number of requests to meta
Date Wed, 16 Mar 2016 23:56:34 GMT

     [ https://issues.apache.org/jira/browse/HBASE-15390?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Mikhail Antonov updated HBASE-15390:
------------------------------------
    Fix Version/s:     (was: 1.2.1)
                   2.0.0

> Unnecessary MetaCache evictions cause elevated number of requests to meta
> -------------------------------------------------------------------------
>
>                 Key: HBASE-15390
>                 URL: https://issues.apache.org/jira/browse/HBASE-15390
>             Project: HBase
>          Issue Type: Bug
>          Components: Client
>    Affects Versions: 1.2.0
>            Reporter: Mikhail Antonov
>            Assignee: Mikhail Antonov
>            Priority: Blocker
>             Fix For: 2.0.0, 1.3.0
>
>         Attachments: HBASE-15390.branch-1.3.v1.patch, HBASE-15390.v1.patch
>
>
>  - In ClientExceptionsUtil#findException() we don't unwrap correctly all remote exceptions
but a few selected ones;
>    more specifically, we don't unwrap correctly all remote exceptions where getCause()
exception doesn't have a constructor (String message)
>  - In AsyncProcess#receiveGlobalFailure() we don't check for #isMetaClearingException()
if tableName is null
>  - We don't have metric on client side to track number of cache drops



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