Mailing-List: contact commits-help@cassandra.apache.org; run by ezmlm
Precedence: bulk
Reply-To: dev@cassandra.apache.org
Message-ID: <12497987.347101285174054635.JavaMail.jira@thor>
Date: Wed, 22 Sep 2010 12:47:34 -0400 (EDT)
From: "Jonathan Ellis (JIRA)" <jira@apache.org>
To: commits@cassandra.apache.org
Subject: [jira] Commented: (CASSANDRA-1434) ColumnFamilyOutputFormat
 performs blocking writes for large batches
In-Reply-To: <26949102.572491282778419356.JavaMail.jira@thor>
MIME-Version: 1.0
Content-Type: text/plain; charset=utf-8
Content-Transfer-Encoding: 7bit


    [ https://issues.apache.org/jira/browse/CASSANDRA-1434?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12913658#action_12913658 ] 

Jonathan Ellis commented on CASSANDRA-1434:
-------------------------------------------

i'm -1 on batching at all.

> ColumnFamilyOutputFormat performs blocking writes for large batches
> -------------------------------------------------------------------
>
>                 Key: CASSANDRA-1434
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-1434
>             Project: Cassandra
>          Issue Type: Bug
>          Components: Hadoop
>            Reporter: Stu Hood
>            Assignee: Stu Hood
>             Fix For: 0.7 beta 2
>
>         Attachments: 0001-Switch-away-from-Multimap-and-fix-regression-introdu.patch, 0002-Improve-concurrency-and-add-basic-retries-by-attempt.patch, 0003-Switch-RingCache-back-to-multimap.patch, 0004-Replace-Executor-with-map-of-threads.patch, 1434-v3.txt, 1434-v4.txt
>
>
> By default, ColumnFamilyOutputFormat batches {{mapreduce.output.columnfamilyoutputformat.batch.threshold}} or {{Long.MAX_VALUE}} mutations, and then performs a blocking write.

-- 
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.