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https://issues.apache.org/jira/browse/CASSANDRA-2683?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13039112#comment-13039112
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Hudson commented on CASSANDRA-2683:
-----------------------------------

Integrated in Cassandra-0.8 #135 (See 
[https://builds.apache.org/hudson/job/Cassandra-0.8/135/])
    Allow writes to bypass the commit log for certain keyspaces

Patch by tjake; reviewed by jbellis for CASSANDRA-2683

jake : http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1127505
Files : 
* 
/cassandra/branches/cassandra-0.8/src/java/org/apache/cassandra/db/RowMutation.java
* 
/cassandra/branches/cassandra-0.8/test/unit/org/apache/cassandra/SchemaLoader.java
* 
/cassandra/branches/cassandra-0.8/test/unit/org/apache/cassandra/db/ReadMessageTest.java
* /cassandra/branches/cassandra-0.8/CHANGES.txt
* /cassandra/branches/cassandra-0.8/src/avro/internode.genavro
* 
/cassandra/branches/cassandra-0.8/src/java/org/apache/cassandra/db/RowMutationVerbHandler.java
* /cassandra/branches/cassandra-0.8/interface/cassandra.thrift
* 
/cassandra/branches/cassandra-0.8/src/java/org/apache/cassandra/config/KSMetaData.java
* 
/cassandra/branches/cassandra-0.8/interface/thrift/gen-java/org/apache/cassandra/thrift/KsDef.java


> Allow writes to bypass the commit log for certain keyspaces
> -----------------------------------------------------------
>
>                 Key: CASSANDRA-2683
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-2683
>             Project: Cassandra
>          Issue Type: Improvement
>          Components: Core
>            Reporter: T Jake Luciani
>            Assignee: T Jake Luciani
>             Fix For: 0.8.1
>
>         Attachments: v1-0001-CASSANDRA-2683-add-bypass_commitlog-flag.txt, 
> v1-0002-CASSANDRA-2683-thrift-add-bypass_commitlog-flag.txt, 
> v1-0003-CASSANDRA-2683-rename-bypass_commitlog-to-durable_writ.txt, 
> v1-0004-CASSANDRA-2683-rename-bypass_commitlog-to-durable_writ.txt
>
>
> Some data in cassandra does not need durability on a single node.  Also ec2 
> users often wish to disable the commitlog since they are using the ephemeral 
> disks.
> This patch let's you set bypass_commitlog=true in the CfMetaData, the effect 
> being RowMutations on ColumnFamilies with this flag will bypass the commit log

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