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From "Liu Shaohui (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HBASE-11685) Incr/decr on the reference count of HConnectionImplementation need be atomic
Date Tue, 12 Aug 2014 07:43:12 GMT

     [ https://issues.apache.org/jira/browse/HBASE-11685?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Liu Shaohui updated HBASE-11685:
--------------------------------

    Attachment: HBASE-11685-trunk-v6.diff

Fix the failed test TestMetaTableAccessorNoCluster.
And It seems that the other failed test TestZKSecretWatcher has no relations with this patch.

> Incr/decr on the reference count of HConnectionImplementation need be atomic 
> -----------------------------------------------------------------------------
>
>                 Key: HBASE-11685
>                 URL: https://issues.apache.org/jira/browse/HBASE-11685
>             Project: HBase
>          Issue Type: Bug
>          Components: Client
>            Reporter: Liu Shaohui
>            Assignee: Liu Shaohui
>            Priority: Minor
>             Fix For: 2.0.0
>
>         Attachments: HBASE-11685-trunk-v1.diff, HBASE-11685-trunk-v2.diff, HBASE-11685-trunk-v3.diff,
HBASE-11685-trunk-v4.diff, HBASE-11685-trunk-v5.diff, HBASE-11685-trunk-v6.diff
>
>
> Currently, the incr/decr operation on the ref count of HConnectionImplementation are
not atomic. This may cause that the ref count always be larger than 0 and  the connection
never be closed.
> {code}
>     /**
>      * Increment this client's reference count.
>      */
>     void incCount() {
>       ++refCount;
>     }
>     /**
>      * Decrement this client's reference count.
>      */
>     void decCount() {
>       if (refCount > 0) {
>         --refCount;
>       }
>     }
> {code}



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