[jira] [Updated] (CASSANDRA-14261) Compaction Profiling Improvements

2018-04-12 Thread Jeff Jirsa (JIRA)

 [ 
https://issues.apache.org/jira/browse/CASSANDRA-14261?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Jeff Jirsa updated CASSANDRA-14261:
---
Status: Ready to Commit  (was: Patch Available)

> Compaction Profiling Improvements
> -
>
> Key: CASSANDRA-14261
> URL: https://issues.apache.org/jira/browse/CASSANDRA-14261
> Project: Cassandra
>  Issue Type: Improvement
>  Components: Compaction
>Reporter: Jeff Jirsa
>Assignee: Jeff Jirsa
>Priority: Minor
> Fix For: 4.0
>
> Attachments: patched-hot-threads.png, patched-tlab.png, 
> unpatched-hot-threads-top.png, unpatched-hot-threads.png, unpatched-tlab.png
>
>
> There's some low hanging fruit in some laptop compaction runs, such as 
> creating a ton of the same object unnecessarily and hashing cell names 
> repeatedly to see if a column is dropped even when we should know that the 
> table has no dropped columns. 



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[jira] [Updated] (CASSANDRA-14261) Compaction Profiling Improvements

2018-04-12 Thread Jeff Jirsa (JIRA)

 [ 
https://issues.apache.org/jira/browse/CASSANDRA-14261?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Jeff Jirsa updated CASSANDRA-14261:
---
   Resolution: Fixed
Fix Version/s: (was: 4.x)
   4.0
   Status: Resolved  (was: Ready to Commit)

Nice catch. Backed out that change, added a comment on commit, and committed to 
trunk as 3747a6cd993c1a4d1a4a9345f8efe3ebc6cb482b


> Compaction Profiling Improvements
> -
>
> Key: CASSANDRA-14261
> URL: https://issues.apache.org/jira/browse/CASSANDRA-14261
> Project: Cassandra
>  Issue Type: Improvement
>  Components: Compaction
>Reporter: Jeff Jirsa
>Assignee: Jeff Jirsa
>Priority: Minor
> Fix For: 4.0
>
> Attachments: patched-hot-threads.png, patched-tlab.png, 
> unpatched-hot-threads-top.png, unpatched-hot-threads.png, unpatched-tlab.png
>
>
> There's some low hanging fruit in some laptop compaction runs, such as 
> creating a ton of the same object unnecessarily and hashing cell names 
> repeatedly to see if a column is dropped even when we should know that the 
> table has no dropped columns. 



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[jira] [Updated] (CASSANDRA-14261) Compaction Profiling Improvements

2018-04-12 Thread Marcus Eriksson (JIRA)

 [ 
https://issues.apache.org/jira/browse/CASSANDRA-14261?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Marcus Eriksson updated CASSANDRA-14261:

Reviewer: Marcus Eriksson

> Compaction Profiling Improvements
> -
>
> Key: CASSANDRA-14261
> URL: https://issues.apache.org/jira/browse/CASSANDRA-14261
> Project: Cassandra
>  Issue Type: Improvement
>  Components: Compaction
>Reporter: Jeff Jirsa
>Assignee: Jeff Jirsa
>Priority: Minor
> Fix For: 4.x
>
> Attachments: patched-hot-threads.png, patched-tlab.png, 
> unpatched-hot-threads-top.png, unpatched-hot-threads.png, unpatched-tlab.png
>
>
> There's some low hanging fruit in some laptop compaction runs, such as 
> creating a ton of the same object unnecessarily and hashing cell names 
> repeatedly to see if a column is dropped even when we should know that the 
> table has no dropped columns. 



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[jira] [Updated] (CASSANDRA-14261) Compaction Profiling Improvements

2018-03-01 Thread Jeff Jirsa (JIRA)

 [ 
https://issues.apache.org/jira/browse/CASSANDRA-14261?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Jeff Jirsa updated CASSANDRA-14261:
---
Attachment: patched-tlab.png
patched-hot-threads.png
unpatched-tlab.png
unpatched-hot-threads.png
unpatched-hot-threads-top.png

> Compaction Profiling Improvements
> -
>
> Key: CASSANDRA-14261
> URL: https://issues.apache.org/jira/browse/CASSANDRA-14261
> Project: Cassandra
>  Issue Type: Improvement
>  Components: Compaction
>Reporter: Jeff Jirsa
>Assignee: Jeff Jirsa
>Priority: Minor
> Fix For: 4.x
>
> Attachments: patched-hot-threads.png, patched-tlab.png, 
> unpatched-hot-threads-top.png, unpatched-hot-threads.png, unpatched-tlab.png
>
>
> There's some low hanging fruit in some laptop compaction runs, such as 
> creating a ton of the same object unnecessarily and hashing cell names 
> repeatedly to see if a column is dropped even when we should know that the 
> table has no dropped columns. 



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[jira] [Updated] (CASSANDRA-14261) Compaction Profiling Improvements

2018-02-25 Thread Jeff Jirsa (JIRA)

 [ 
https://issues.apache.org/jira/browse/CASSANDRA-14261?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Jeff Jirsa updated CASSANDRA-14261:
---
Status: Patch Available  (was: Open)

> Compaction Profiling Improvements
> -
>
> Key: CASSANDRA-14261
> URL: https://issues.apache.org/jira/browse/CASSANDRA-14261
> Project: Cassandra
>  Issue Type: Improvement
>  Components: Compaction
>Reporter: Jeff Jirsa
>Assignee: Jeff Jirsa
>Priority: Minor
> Fix For: 4.x
>
>
> There's some low hanging fruit in some laptop compaction runs, such as 
> creating a ton of the same object unnecessarily and hashing cell names 
> repeatedly to see if a column is dropped even when we should know that the 
> table has no dropped columns. 



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