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Posted to commits@cassandra.apache.org by "sankalp kohli (JIRA)" <ji...@apache.org> on 2012/08/16 05:17:37 UTC
[jira] [Created] (CASSANDRA-4548) Mutation
response(WriteResponse.java) could be smaller and not contain keyspace and
key
sankalp kohli created CASSANDRA-4548:
----------------------------------------
Summary: Mutation response(WriteResponse.java) could be smaller and not contain keyspace and key
Key: CASSANDRA-4548
URL: https://issues.apache.org/jira/browse/CASSANDRA-4548
Project: Cassandra
Issue Type: Improvement
Components: Core
Affects Versions: 1.2
Reporter: sankalp kohli
In the mutation response, WriteResponse.java object is send back to the co-ordinator. This object has keyspace and key in it which is not required. It is not being used at the co-ordiantor.
This wastes IO specially in case of WAN links between DC. Also since response from each node in multi-DC deployments goes back to the co-ordinator in another DC makes it even worse.
It also becomes worse if the the keyspace and key are of large size and the data is small. In that case, a node which is not the co-ordinator and purely receiving mutations, the outbound n/w bandwidth could be half of incoming bandwidth.
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[jira] [Updated] (CASSANDRA-4548) Mutation
response(WriteResponse.java) could be smaller and not contain keyspace and
key
Posted by "Jonathan Ellis (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/CASSANDRA-4548?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Jonathan Ellis updated CASSANDRA-4548:
--------------------------------------
Reviewer: brandon.williams
Priority: Minor (was: Major)
Affects Version/s: (was: 1.2.0 beta 1)
Fix Version/s: 1.2.0 beta 1
Assignee: Jonathan Ellis
> Mutation response(WriteResponse.java) could be smaller and not contain keyspace and key
> ---------------------------------------------------------------------------------------
>
> Key: CASSANDRA-4548
> URL: https://issues.apache.org/jira/browse/CASSANDRA-4548
> Project: Cassandra
> Issue Type: Improvement
> Components: Core
> Reporter: sankalp kohli
> Assignee: Jonathan Ellis
> Priority: Minor
> Labels: network
> Fix For: 1.2.0 beta 1
>
>
> In the mutation response, WriteResponse.java object is send back to the co-ordinator. This object has keyspace and key in it which is not required. It is not being used at the co-ordiantor.
> This wastes IO specially in case of WAN links between DC. Also since response from each node in multi-DC deployments goes back to the co-ordinator in another DC makes it even worse.
> It also becomes worse if the the keyspace and key are of large size and the data is small. In that case, a node which is not the co-ordinator and purely receiving mutations, the outbound n/w bandwidth could be half of incoming bandwidth.
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[jira] [Resolved] (CASSANDRA-4548) Mutation
response(WriteResponse.java) could be smaller and not contain keyspace and
key
Posted by "Jonathan Ellis (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/CASSANDRA-4548?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Jonathan Ellis resolved CASSANDRA-4548.
---------------------------------------
Resolution: Fixed
committed
> Mutation response(WriteResponse.java) could be smaller and not contain keyspace and key
> ---------------------------------------------------------------------------------------
>
> Key: CASSANDRA-4548
> URL: https://issues.apache.org/jira/browse/CASSANDRA-4548
> Project: Cassandra
> Issue Type: Improvement
> Components: Core
> Reporter: sankalp kohli
> Assignee: Jonathan Ellis
> Priority: Minor
> Labels: network
> Fix For: 1.2.0 beta 1
>
> Attachments: 4548.txt
>
>
> In the mutation response, WriteResponse.java object is send back to the co-ordinator. This object has keyspace and key in it which is not required. It is not being used at the co-ordiantor.
> This wastes IO specially in case of WAN links between DC. Also since response from each node in multi-DC deployments goes back to the co-ordinator in another DC makes it even worse.
> It also becomes worse if the the keyspace and key are of large size and the data is small. In that case, a node which is not the co-ordinator and purely receiving mutations, the outbound n/w bandwidth could be half of incoming bandwidth.
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[jira] [Updated] (CASSANDRA-4548) Mutation
response(WriteResponse.java) could be smaller and not contain keyspace and
key
Posted by "Jonathan Ellis (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/CASSANDRA-4548?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Jonathan Ellis updated CASSANDRA-4548:
--------------------------------------
Attachment: 4548.txt
attached. (the boolean isn't used either, we don't bother sending responses on failure, letting them time out.)
> Mutation response(WriteResponse.java) could be smaller and not contain keyspace and key
> ---------------------------------------------------------------------------------------
>
> Key: CASSANDRA-4548
> URL: https://issues.apache.org/jira/browse/CASSANDRA-4548
> Project: Cassandra
> Issue Type: Improvement
> Components: Core
> Reporter: sankalp kohli
> Assignee: Jonathan Ellis
> Priority: Minor
> Labels: network
> Fix For: 1.2.0 beta 1
>
> Attachments: 4548.txt
>
>
> In the mutation response, WriteResponse.java object is send back to the co-ordinator. This object has keyspace and key in it which is not required. It is not being used at the co-ordiantor.
> This wastes IO specially in case of WAN links between DC. Also since response from each node in multi-DC deployments goes back to the co-ordinator in another DC makes it even worse.
> It also becomes worse if the the keyspace and key are of large size and the data is small. In that case, a node which is not the co-ordinator and purely receiving mutations, the outbound n/w bandwidth could be half of incoming bandwidth.
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[jira] [Commented] (CASSANDRA-4548) Mutation
response(WriteResponse.java) could be smaller and not contain keyspace and
key
Posted by "Brandon Williams (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/CASSANDRA-4548?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13445428#comment-13445428 ]
Brandon Williams commented on CASSANDRA-4548:
---------------------------------------------
+1
> Mutation response(WriteResponse.java) could be smaller and not contain keyspace and key
> ---------------------------------------------------------------------------------------
>
> Key: CASSANDRA-4548
> URL: https://issues.apache.org/jira/browse/CASSANDRA-4548
> Project: Cassandra
> Issue Type: Improvement
> Components: Core
> Reporter: sankalp kohli
> Assignee: Jonathan Ellis
> Priority: Minor
> Labels: network
> Fix For: 1.2.0 beta 1
>
> Attachments: 4548.txt
>
>
> In the mutation response, WriteResponse.java object is send back to the co-ordinator. This object has keyspace and key in it which is not required. It is not being used at the co-ordiantor.
> This wastes IO specially in case of WAN links between DC. Also since response from each node in multi-DC deployments goes back to the co-ordinator in another DC makes it even worse.
> It also becomes worse if the the keyspace and key are of large size and the data is small. In that case, a node which is not the co-ordinator and purely receiving mutations, the outbound n/w bandwidth could be half of incoming bandwidth.
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