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Posted to commits@cassandra.apache.org by "T Jake Luciani (JIRA)" <ji...@apache.org> on 2011/01/24 04:40:43 UTC
[jira] Created: (CASSANDRA-2038) Add local read path back to
StorageProxy
Add local read path back to StorageProxy
----------------------------------------
Key: CASSANDRA-2038
URL: https://issues.apache.org/jira/browse/CASSANDRA-2038
Project: Cassandra
Issue Type: Improvement
Components: Core
Affects Versions: 0.7.1
Reporter: T Jake Luciani
Assignee: T Jake Luciani
Fix For: 0.7.1
CASSANDRA-982 removed the local read path optimization. Without this all local reads go through serialization and messaging. Avoiding this step improves local read performance > 50%
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[jira] Commented: (CASSANDRA-2038) Add local read path back to
StorageProxy
Posted by "Hudson (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/CASSANDRA-2038?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12985847#action_12985847 ]
Hudson commented on CASSANDRA-2038:
-----------------------------------
Integrated in Cassandra-0.7 #197 (See [https://hudson.apache.org/hudson/job/Cassandra-0.7/197/])
add optimization for local reads to StorageProxy
patch by jbellis and tjake for CASSANDRA-2038
> Add local read path back to StorageProxy
> ----------------------------------------
>
> Key: CASSANDRA-2038
> URL: https://issues.apache.org/jira/browse/CASSANDRA-2038
> Project: Cassandra
> Issue Type: Improvement
> Components: Core
> Affects Versions: 0.7.1
> Reporter: T Jake Luciani
> Assignee: Jonathan Ellis
> Fix For: 0.7.1
>
> Attachments: 0001-CASSANDRA-2038-reincorporate-local-reads.txt, 0002-CASSANDRA-2038-only-local-for-CL.ONE.txt, 2038-v2.txt
>
> Original Estimate: 6h
> Remaining Estimate: 6h
>
> CASSANDRA-982 removed the local read path optimization. Without this all local reads go through serialization and messaging. Avoiding this step improves local read performance > 50%
>
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[jira] Updated: (CASSANDRA-2038) Add local read path back to
StorageProxy
Posted by "T Jake Luciani (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/CASSANDRA-2038?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
T Jake Luciani updated CASSANDRA-2038:
--------------------------------------
Attachment: 0001-CASSANDRA-2038-reincorporate-local-reads.txt
> Add local read path back to StorageProxy
> ----------------------------------------
>
> Key: CASSANDRA-2038
> URL: https://issues.apache.org/jira/browse/CASSANDRA-2038
> Project: Cassandra
> Issue Type: Improvement
> Components: Core
> Affects Versions: 0.7.1
> Reporter: T Jake Luciani
> Assignee: T Jake Luciani
> Fix For: 0.7.1
>
> Attachments: 0001-CASSANDRA-2038-reincorporate-local-reads.txt
>
>
> CASSANDRA-982 removed the local read path optimization. Without this all local reads go through serialization and messaging. Avoiding this step improves local read performance > 50%
>
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[jira] Updated: (CASSANDRA-2038) Add local read path back to
StorageProxy
Posted by "T Jake Luciani (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/CASSANDRA-2038?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
T Jake Luciani updated CASSANDRA-2038:
--------------------------------------
Attachment: 0002-CASSANDRA-2038-only-local-for-CL.ONE.txt
0001-CASSANDRA-2038-reincorporate-local-reads.txt
> Add local read path back to StorageProxy
> ----------------------------------------
>
> Key: CASSANDRA-2038
> URL: https://issues.apache.org/jira/browse/CASSANDRA-2038
> Project: Cassandra
> Issue Type: Improvement
> Components: Core
> Affects Versions: 0.7.1
> Reporter: T Jake Luciani
> Assignee: T Jake Luciani
> Fix For: 0.7.1
>
> Attachments: 0001-CASSANDRA-2038-reincorporate-local-reads.txt, 0002-CASSANDRA-2038-only-local-for-CL.ONE.txt
>
>
> CASSANDRA-982 removed the local read path optimization. Without this all local reads go through serialization and messaging. Avoiding this step improves local read performance > 50%
>
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[jira] Commented: (CASSANDRA-2038) Add local read path back to
StorageProxy
Posted by "T Jake Luciani (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/CASSANDRA-2038?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12985797#action_12985797 ]
T Jake Luciani commented on CASSANDRA-2038:
-------------------------------------------
I tested this with stress on a 4 node cluster with RF=2, CL.ONE reads and CL.ALL reads no issues.
> Add local read path back to StorageProxy
> ----------------------------------------
>
> Key: CASSANDRA-2038
> URL: https://issues.apache.org/jira/browse/CASSANDRA-2038
> Project: Cassandra
> Issue Type: Improvement
> Components: Core
> Affects Versions: 0.7.1
> Reporter: T Jake Luciani
> Assignee: T Jake Luciani
> Fix For: 0.7.1
>
> Attachments: 0001-CASSANDRA-2038-reincorporate-local-reads.txt, 0002-CASSANDRA-2038-only-local-for-CL.ONE.txt, 2038-v2.txt
>
>
> CASSANDRA-982 removed the local read path optimization. Without this all local reads go through serialization and messaging. Avoiding this step improves local read performance > 50%
>
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[jira] Resolved: (CASSANDRA-2038) Add local read path back to
StorageProxy
Posted by "Jonathan Ellis (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/CASSANDRA-2038?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Jonathan Ellis resolved CASSANDRA-2038.
---------------------------------------
Resolution: Fixed
Reviewer: tjake
Assignee: Jonathan Ellis (was: T Jake Luciani)
committed
> Add local read path back to StorageProxy
> ----------------------------------------
>
> Key: CASSANDRA-2038
> URL: https://issues.apache.org/jira/browse/CASSANDRA-2038
> Project: Cassandra
> Issue Type: Improvement
> Components: Core
> Affects Versions: 0.7.1
> Reporter: T Jake Luciani
> Assignee: Jonathan Ellis
> Fix For: 0.7.1
>
> Attachments: 0001-CASSANDRA-2038-reincorporate-local-reads.txt, 0002-CASSANDRA-2038-only-local-for-CL.ONE.txt, 2038-v2.txt
>
> Original Estimate: 6h
> Remaining Estimate: 6h
>
> CASSANDRA-982 removed the local read path optimization. Without this all local reads go through serialization and messaging. Avoiding this step improves local read performance > 50%
>
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[jira] Updated: (CASSANDRA-2038) Add local read path back to
StorageProxy
Posted by "Jonathan Ellis (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/CASSANDRA-2038?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Jonathan Ellis updated CASSANDRA-2038:
--------------------------------------
Description:
CASSANDRA-982 removed the local read path optimization. Without this all local reads go through serialization and messaging. Avoiding this step improves local read performance > 50%
was:
CASSANDRA-982 removed the local read path optimization. Without this all local reads go through serialization and messaging. Avoiding this step improves local read performance > 50%
Remaining Estimate: 6h
Original Estimate: 6h
> Add local read path back to StorageProxy
> ----------------------------------------
>
> Key: CASSANDRA-2038
> URL: https://issues.apache.org/jira/browse/CASSANDRA-2038
> Project: Cassandra
> Issue Type: Improvement
> Components: Core
> Affects Versions: 0.7.1
> Reporter: T Jake Luciani
> Assignee: T Jake Luciani
> Fix For: 0.7.1
>
> Attachments: 0001-CASSANDRA-2038-reincorporate-local-reads.txt, 0002-CASSANDRA-2038-only-local-for-CL.ONE.txt, 2038-v2.txt
>
> Original Estimate: 6h
> Remaining Estimate: 6h
>
> CASSANDRA-982 removed the local read path optimization. Without this all local reads go through serialization and messaging. Avoiding this step improves local read performance > 50%
>
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[jira] Updated: (CASSANDRA-2038) Add local read path back to
StorageProxy
Posted by "Jonathan Ellis (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/CASSANDRA-2038?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Jonathan Ellis updated CASSANDRA-2038:
--------------------------------------
Attachment: 2038-v2.txt
v2 generalizes to allow optimizing local reads for any CL and for digest as well as data reads, without having to special-case LocalFutures. it also simplifies the message-sending to a single pass instead of message array construction followed by re-iteration over them.
v2 is completely un-tested but the approach is promising. :)
> Add local read path back to StorageProxy
> ----------------------------------------
>
> Key: CASSANDRA-2038
> URL: https://issues.apache.org/jira/browse/CASSANDRA-2038
> Project: Cassandra
> Issue Type: Improvement
> Components: Core
> Affects Versions: 0.7.1
> Reporter: T Jake Luciani
> Assignee: T Jake Luciani
> Fix For: 0.7.1
>
> Attachments: 0001-CASSANDRA-2038-reincorporate-local-reads.txt, 0002-CASSANDRA-2038-only-local-for-CL.ONE.txt, 2038-v2.txt
>
>
> CASSANDRA-982 removed the local read path optimization. Without this all local reads go through serialization and messaging. Avoiding this step improves local read performance > 50%
>
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[jira] Issue Comment Edited: (CASSANDRA-2038) Add local read path
back to StorageProxy
Posted by "T Jake Luciani (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/CASSANDRA-2038?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12985797#action_12985797 ]
T Jake Luciani edited comment on CASSANDRA-2038 at 1/24/11 12:02 PM:
---------------------------------------------------------------------
I tested this with stress on a 4 node cluster with RF=2, CL.ONE reads and CL.ALL reads no issues. +1
was (Author: tjake):
I tested this with stress on a 4 node cluster with RF=2, CL.ONE reads and CL.ALL reads no issues.
> Add local read path back to StorageProxy
> ----------------------------------------
>
> Key: CASSANDRA-2038
> URL: https://issues.apache.org/jira/browse/CASSANDRA-2038
> Project: Cassandra
> Issue Type: Improvement
> Components: Core
> Affects Versions: 0.7.1
> Reporter: T Jake Luciani
> Assignee: T Jake Luciani
> Fix For: 0.7.1
>
> Attachments: 0001-CASSANDRA-2038-reincorporate-local-reads.txt, 0002-CASSANDRA-2038-only-local-for-CL.ONE.txt, 2038-v2.txt
>
>
> CASSANDRA-982 removed the local read path optimization. Without this all local reads go through serialization and messaging. Avoiding this step improves local read performance > 50%
>
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You can reply to this email to add a comment to the issue online.
[jira] Updated: (CASSANDRA-2038) Add local read path back to
StorageProxy
Posted by "T Jake Luciani (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/CASSANDRA-2038?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
T Jake Luciani updated CASSANDRA-2038:
--------------------------------------
Attachment: (was: 0001-CASSANDRA-2038-reincorporate-local-reads.txt)
> Add local read path back to StorageProxy
> ----------------------------------------
>
> Key: CASSANDRA-2038
> URL: https://issues.apache.org/jira/browse/CASSANDRA-2038
> Project: Cassandra
> Issue Type: Improvement
> Components: Core
> Affects Versions: 0.7.1
> Reporter: T Jake Luciani
> Assignee: T Jake Luciani
> Fix For: 0.7.1
>
>
> CASSANDRA-982 removed the local read path optimization. Without this all local reads go through serialization and messaging. Avoiding this step improves local read performance > 50%
>
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