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From "Ted Yu (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HBASE-8218) Pass HTable as parameter to methods of AggregationClient
Date Tue, 14 May 2013 16:07:17 GMT

     [ https://issues.apache.org/jira/browse/HBASE-8218?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Ted Yu updated HBASE-8218:
--------------------------

    Summary: Pass HTable as parameter to methods of AggregationClient  (was: Pass HTable as
parameters to methods of AggregationClient)

@Anoop:
Yeah, +1 from me.

Do you want to assign this issue to yourself ?
                
> Pass HTable as parameter to methods of AggregationClient
> --------------------------------------------------------
>
>                 Key: HBASE-8218
>                 URL: https://issues.apache.org/jira/browse/HBASE-8218
>             Project: HBase
>          Issue Type: Improvement
>          Components: Client, Coprocessors
>    Affects Versions: 0.94.3
>            Reporter: cuijianwei
>            Assignee: cuijianwei
>             Fix For: 0.98.0
>
>         Attachments: 8218-trunk-v2-rerun.txt, 8218-trunk-v2.txt, 8218-trunk-v3-rerun.txt,
8218-trunk-v3.txt, HBASE-8218-0.94.3-v1.txt, HBASE-8218-0.94.3-v2.txt, HBASE-8218-0.94.3-v3.txt,
HBASE-8218-trunk-v1.txt, HBase-8218_Trunk_V4.patch, HBase-8218_Trunk_V5.patch
>
>
> In AggregationClient, methods such as max(...), min(...) pass 'tableName' as a parameter,
then a HTable will be created in the method, before the method return, the created HTable
will be closed.
> The process above may be heavy because each call must create and close a HTable. The
situation becomes worse when there is only one thread access HBase using AggregationClient.
The underly HConnection of created HTable will also be created and then closed each time when
we invoke these method because no other HTables using the HConnection. This operation is heavy.
Therefore, can we add another group of methods which pass HTable as a parameter to methods
defined in AggregationClient

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