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Posted to commits@cassandra.apache.org by "Jonathan Ellis (JIRA)" <ji...@apache.org> on 2011/06/28 01:15:17 UTC
[jira] [Created] (CASSANDRA-2832) reduce variance in HH impact
between wide and narrow rows
reduce variance in HH impact between wide and narrow rows
---------------------------------------------------------
Key: CASSANDRA-2832
URL: https://issues.apache.org/jira/browse/CASSANDRA-2832
Project: Cassandra
Issue Type: Improvement
Components: Core
Reporter: Jonathan Ellis
Assignee: Jonathan Ellis
Priority: Minor
Fix For: 0.7.7, 0.8.2
Attachments: 2832.txt
default page_size of 10000 is huge, and makes it impossible to set a hinted_handoff_throttle_delay_in_ms that works well for both wide rows and narrow.
at the same time you don't want to make it TOO small because that will hurt performance on the source node (seeking to the hinted row repeatedly).
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[jira] [Commented] (CASSANDRA-2832) reduce variance in HH impact
between wide and narrow rows
Posted by "Brandon Williams (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/CASSANDRA-2832?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13056194#comment-13056194 ]
Brandon Williams commented on CASSANDRA-2832:
---------------------------------------------
+1
> reduce variance in HH impact between wide and narrow rows
> ---------------------------------------------------------
>
> Key: CASSANDRA-2832
> URL: https://issues.apache.org/jira/browse/CASSANDRA-2832
> Project: Cassandra
> Issue Type: Improvement
> Components: Core
> Reporter: Jonathan Ellis
> Assignee: Jonathan Ellis
> Priority: Minor
> Fix For: 0.7.7, 0.8.2
>
> Attachments: 2832.txt
>
>
> default page_size of 10000 is huge, and makes it impossible to set a hinted_handoff_throttle_delay_in_ms that works well for both wide rows and narrow.
> at the same time you don't want to make it TOO small because that will hurt performance on the source node (seeking to the hinted row repeatedly).
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[jira] [Commented] (CASSANDRA-2832) reduce variance in HH impact
between wide and narrow rows
Posted by "Hudson (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/CASSANDRA-2832?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13056241#comment-13056241 ]
Hudson commented on CASSANDRA-2832:
-----------------------------------
Integrated in Cassandra-0.7 #513 (See [https://builds.apache.org/job/Cassandra-0.7/513/])
reduce max HH pageSize to 1024
patch by jbellis; reviewed by brandonwilliams for CASSANDRA-2832
jbellis : http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1140385
Files :
* /cassandra/branches/cassandra-0.7/src/java/org/apache/cassandra/db/HintedHandOffManager.java
> reduce variance in HH impact between wide and narrow rows
> ---------------------------------------------------------
>
> Key: CASSANDRA-2832
> URL: https://issues.apache.org/jira/browse/CASSANDRA-2832
> Project: Cassandra
> Issue Type: Improvement
> Components: Core
> Reporter: Jonathan Ellis
> Assignee: Jonathan Ellis
> Priority: Minor
> Fix For: 0.7.7, 0.8.2
>
> Attachments: 2832.txt
>
>
> default page_size of 10000 is huge, and makes it impossible to set a hinted_handoff_throttle_delay_in_ms that works well for both wide rows and narrow.
> at the same time you don't want to make it TOO small because that will hurt performance on the source node (seeking to the hinted row repeatedly).
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[jira] [Updated] (CASSANDRA-2832) reduce variance in HH impact
between wide and narrow rows
Posted by "Jonathan Ellis (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/CASSANDRA-2832?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Jonathan Ellis updated CASSANDRA-2832:
--------------------------------------
Attachment: 2832.txt
patch to set max page_size to 128.
> reduce variance in HH impact between wide and narrow rows
> ---------------------------------------------------------
>
> Key: CASSANDRA-2832
> URL: https://issues.apache.org/jira/browse/CASSANDRA-2832
> Project: Cassandra
> Issue Type: Improvement
> Components: Core
> Reporter: Jonathan Ellis
> Assignee: Jonathan Ellis
> Priority: Minor
> Fix For: 0.7.7, 0.8.2
>
> Attachments: 2832.txt
>
>
> default page_size of 10000 is huge, and makes it impossible to set a hinted_handoff_throttle_delay_in_ms that works well for both wide rows and narrow.
> at the same time you don't want to make it TOO small because that will hurt performance on the source node (seeking to the hinted row repeatedly).
--
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For more information on JIRA, see: http://www.atlassian.com/software/jira