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Posted to dev@hama.apache.org by "Edward J. Yoon (JIRA)" <ji...@apache.org> on 2008/06/24 13:00:44 UTC
[jira] Created: (HAMA-4) Table pre-allocation
Table pre-allocation
--------------------
Key: HAMA-4
URL: https://issues.apache.org/jira/browse/HAMA-4
Project: Hama
Issue Type: Improvement
Components: architecture
Reporter: Edward J. Yoon
Assignee: Edward J. Yoon
I've heard from the HBase list that creation of a table is a time-consuming
task.
So, should we create the table pool, allocate some tables to the it.
Then when a matrix object is created,
- we get a table from the pool
- mark i"in-use".
Later when we clear it
- return to the pool
- mark it "available".
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[jira] Resolved: (HAMA-4) Table pre-allocation
Posted by "Edward J. Yoon (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/HAMA-4?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Edward J. Yoon resolved HAMA-4.
-------------------------------
Resolution: Won't Fix
Hbase speed was improved. And, This matter is of no significance on large-scale.
> Table pre-allocation
> --------------------
>
> Key: HAMA-4
> URL: https://issues.apache.org/jira/browse/HAMA-4
> Project: Hama
> Issue Type: Improvement
> Components: interface
> Reporter: Edward J. Yoon
> Assignee: Edward J. Yoon
>
> I've heard from the HBase list that creation of a table is a time-consuming
> task.
> So, should we create the table pool, allocate some tables to the it.
> Then when a matrix object is created,
> - we get a table from the pool
> - mark i"in-use".
> Later when we clear it
> - return to the pool
> - mark it "available".
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You can reply to this email to add a comment to the issue online.
[jira] Commented: (HAMA-4) Table pre-allocation
Posted by "Edward J. Yoon (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/HAMA-4?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12607554#action_12607554 ]
Edward J. Yoon commented on HAMA-4:
-----------------------------------
From: St.Ack
Messages between master and regionserver are sent in batches on an interval. Shorten
the interval and tables are created more promptly.
<name>hbase.regionserver.msginterval</name>
<value>3000</value>
<description>Interval between messages from the RegionServer to HMaster
in milliseconds. Default is 15. Set this value low if you want unit
tests to be responsive.
</description>
> Table pre-allocation
> --------------------
>
> Key: HAMA-4
> URL: https://issues.apache.org/jira/browse/HAMA-4
> Project: Hama
> Issue Type: Improvement
> Components: architecture
> Reporter: Edward J. Yoon
> Assignee: Edward J. Yoon
>
> I've heard from the HBase list that creation of a table is a time-consuming
> task.
> So, should we create the table pool, allocate some tables to the it.
> Then when a matrix object is created,
> - we get a table from the pool
> - mark i"in-use".
> Later when we clear it
> - return to the pool
> - mark it "available".
--
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You can reply to this email to add a comment to the issue online.