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Posted to derby-dev@db.apache.org by "Rick Hillegas (JIRA)" <ji...@apache.org> on 2011/02/16 18:26:24 UTC
[jira] Created: (DERBY-5048) Tune the istat knobs and possibly add
existing knobs
Tune the istat knobs and possibly add existing knobs
----------------------------------------------------
Key: DERBY-5048
URL: https://issues.apache.org/jira/browse/DERBY-5048
Project: Derby
Issue Type: Improvement
Components: SQL, Store, Test
Affects Versions: 10.8.0.0
Reporter: Rick Hillegas
There is a discussion about reasonable defaults for the undocumented istat knobs and about whether additional knobs are needed: http://old.nabble.com/forum/Search.jtp?forum=105&local=y&query=question+about+istats+thresholds
This issue is a place to continue those discussions and, if necessary, to hang patches. At the moment, we are still planning to not document these knobs. Instead, we would like to gain experience about how istat behaves in the wild. From that experience, we hope to figure out whether these are the right knobs, how to set reasonable defaults for them, and whether we should document how to override Derby's defaults.
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[jira] Closed: (DERBY-5048) Tune the istat knobs and possibly add
new knobs
Posted by "Rick Hillegas (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/DERBY-5048?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Rick Hillegas closed DERBY-5048.
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Resolution: Duplicate
Thanks for that pointer, Kristian. Closing this issue as a duplicate of DERBY-4940 and copying the description to a comment on that issue. Thanks.
> Tune the istat knobs and possibly add new knobs
> -----------------------------------------------
>
> Key: DERBY-5048
> URL: https://issues.apache.org/jira/browse/DERBY-5048
> Project: Derby
> Issue Type: Improvement
> Components: SQL, Store, Test
> Affects Versions: 10.8.0.0
> Reporter: Rick Hillegas
>
> There is a discussion about reasonable defaults for the undocumented istat knobs and about whether additional knobs are needed: http://old.nabble.com/forum/Search.jtp?forum=105&local=y&query=question+about+istats+thresholds
> This issue is a place to continue those discussions and, if necessary, to hang patches. At the moment, we are still planning to not document these knobs. Instead, we would like to gain experience about how istat behaves in the wild. From that experience, we hope to figure out whether these are the right knobs, how to set reasonable defaults for them, and whether we should document how to override Derby's defaults.
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[jira] Commented: (DERBY-5048) Tune the istat knobs and possibly
add existing knobs
Posted by "Kristian Waagan (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/DERBY-5048?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12995422#comment-12995422 ]
Kristian Waagan commented on DERBY-5048:
----------------------------------------
Hi Rick,
This looks very much like DERBY-4940?
And did you mean to write possibly add *new* knobs?
> Tune the istat knobs and possibly add existing knobs
> ----------------------------------------------------
>
> Key: DERBY-5048
> URL: https://issues.apache.org/jira/browse/DERBY-5048
> Project: Derby
> Issue Type: Improvement
> Components: SQL, Store, Test
> Affects Versions: 10.8.0.0
> Reporter: Rick Hillegas
>
> There is a discussion about reasonable defaults for the undocumented istat knobs and about whether additional knobs are needed: http://old.nabble.com/forum/Search.jtp?forum=105&local=y&query=question+about+istats+thresholds
> This issue is a place to continue those discussions and, if necessary, to hang patches. At the moment, we are still planning to not document these knobs. Instead, we would like to gain experience about how istat behaves in the wild. From that experience, we hope to figure out whether these are the right knobs, how to set reasonable defaults for them, and whether we should document how to override Derby's defaults.
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[jira] Updated: (DERBY-5048) Tune the istat knobs and possibly add
new knobs
Posted by "Rick Hillegas (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/DERBY-5048?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Rick Hillegas updated DERBY-5048:
---------------------------------
Summary: Tune the istat knobs and possibly add new knobs (was: Tune the istat knobs and possibly add existing knobs)
> Tune the istat knobs and possibly add new knobs
> -----------------------------------------------
>
> Key: DERBY-5048
> URL: https://issues.apache.org/jira/browse/DERBY-5048
> Project: Derby
> Issue Type: Improvement
> Components: SQL, Store, Test
> Affects Versions: 10.8.0.0
> Reporter: Rick Hillegas
>
> There is a discussion about reasonable defaults for the undocumented istat knobs and about whether additional knobs are needed: http://old.nabble.com/forum/Search.jtp?forum=105&local=y&query=question+about+istats+thresholds
> This issue is a place to continue those discussions and, if necessary, to hang patches. At the moment, we are still planning to not document these knobs. Instead, we would like to gain experience about how istat behaves in the wild. From that experience, we hope to figure out whether these are the right knobs, how to set reasonable defaults for them, and whether we should document how to override Derby's defaults.
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