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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 Tue, 15 Mar 2016 18:13:33 GMT

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

Mikhail Antonov updated HBASE-15390:
------------------------------------
    Summary: Unnecessary MetaCache evictions cause elevated number of requests to meta  (was:
ClientExceptionUtils doesn't handle CallQueueTooBigException properly)

> 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: 1.3.0, 1.2.1
>
>
> In #isMetaClearingException() we're checking for CallQueueTooBigException, but under
debugger in tests I saw that what we're really getting in here is RemoteWithExtrasException,
which doesn't allow to easily unwrap CQTBE from it, since it's stored in the classname field,
and findException() or unwrapRemoteException() fail to unwrap it correctly.
> I think we'd have the same behavior with other exceptions wrapper this way.



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