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Posted to dev@hbase.apache.org by "Jean-Daniel Cryans (JIRA)" <ji...@apache.org> on 2009/10/09 23:05:31 UTC
[jira] Created: (HBASE-1899) Use scanner caching in shell count
Use scanner caching in shell count
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Key: HBASE-1899
URL: https://issues.apache.org/jira/browse/HBASE-1899
Project: Hadoop HBase
Issue Type: Improvement
Reporter: Jean-Daniel Cryans
Assignee: Jean-Daniel Cryans
Priority: Minor
Fix For: 0.20.2, 0.21.0
Since the shell count now uses the FirstKeyOnlyFilter, it's safe to combine it with scanner caching for huge count speedups.
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[jira] Updated: (HBASE-1899) Use scanner caching in shell count
Posted by "Jean-Daniel Cryans (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/HBASE-1899?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Jean-Daniel Cryans updated HBASE-1899:
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Attachment: HBASE-1899.patch
Patch that sets the caching at 10. I thought about leaving the user set the value but after some testing it didn't seem to change the speed much and it was more cumbersome to use.
> Use scanner caching in shell count
> ----------------------------------
>
> Key: HBASE-1899
> URL: https://issues.apache.org/jira/browse/HBASE-1899
> Project: Hadoop HBase
> Issue Type: Improvement
> Reporter: Jean-Daniel Cryans
> Assignee: Jean-Daniel Cryans
> Priority: Minor
> Fix For: 0.20.2, 0.21.0
>
> Attachments: HBASE-1899.patch
>
>
> Since the shell count now uses the FirstKeyOnlyFilter, it's safe to combine it with scanner caching for huge count speedups.
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[jira] Commented: (HBASE-1899) Use scanner caching in shell count
Posted by "stack (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/HBASE-1899?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12764218#action_12764218 ]
stack commented on HBASE-1899:
------------------------------
+1
> Use scanner caching in shell count
> ----------------------------------
>
> Key: HBASE-1899
> URL: https://issues.apache.org/jira/browse/HBASE-1899
> Project: Hadoop HBase
> Issue Type: Improvement
> Reporter: Jean-Daniel Cryans
> Assignee: Jean-Daniel Cryans
> Priority: Minor
> Fix For: 0.20.2, 0.21.0
>
> Attachments: HBASE-1899.patch
>
>
> Since the shell count now uses the FirstKeyOnlyFilter, it's safe to combine it with scanner caching for huge count speedups.
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[jira] Resolved: (HBASE-1899) Use scanner caching in shell count
Posted by "Jean-Daniel Cryans (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/HBASE-1899?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Jean-Daniel Cryans resolved HBASE-1899.
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Resolution: Fixed
Hadoop Flags: [Reviewed]
Committed to branch and trunk.
> Use scanner caching in shell count
> ----------------------------------
>
> Key: HBASE-1899
> URL: https://issues.apache.org/jira/browse/HBASE-1899
> Project: Hadoop HBase
> Issue Type: Improvement
> Reporter: Jean-Daniel Cryans
> Assignee: Jean-Daniel Cryans
> Priority: Minor
> Fix For: 0.20.2, 0.21.0
>
> Attachments: HBASE-1899.patch
>
>
> Since the shell count now uses the FirstKeyOnlyFilter, it's safe to combine it with scanner caching for huge count speedups.
--
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You can reply to this email to add a comment to the issue online.