Mailing-List: contact commits-help@cassandra.apache.org; run by ezmlm
Precedence: bulk
Reply-To: dev@cassandra.apache.org
Date: Sun, 21 Jul 2013 04:42:50 +0000 (UTC)
From: "Pavel Yaskevich (JIRA)" <jira@apache.org>
To: commits@cassandra.apache.org
Message-ID: <JIRA.12653702.1371648677234.87152.1374381770673@arcas>
In-Reply-To: <JIRA.12653702.1371648677234@arcas>
References: <JIRA.12653702.1371648677234@arcas>
Subject: [jira] [Commented] (CASSANDRA-5661) Discard pooled readers for cold
 data
MIME-Version: 1.0
Content-Type: text/plain; charset=utf-8
Content-Transfer-Encoding: 7bit


    [ https://issues.apache.org/jira/browse/CASSANDRA-5661?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13714636#comment-13714636 ] 

Pavel Yaskevich commented on CASSANDRA-5661:
--------------------------------------------

Ok, let me know and I will try to test it tomorrow.
                
> Discard pooled readers for cold data
> ------------------------------------
>
>                 Key: CASSANDRA-5661
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-5661
>             Project: Cassandra
>          Issue Type: Bug
>          Components: Core
>    Affects Versions: 1.2.1
>            Reporter: Jonathan Ellis
>            Assignee: Pavel Yaskevich
>             Fix For: 2.0.1
>
>         Attachments: CASSANDRA-5661-global-multiway-cache.patch, CASSANDRA-5661.patch, DominatorTree.png, Histogram.png
>
>
> Reader pooling was introduced in CASSANDRA-4942 but pooled RandomAccessReaders are never cleaned up until the SSTableReader is closed.  So memory use is "the worst case simultaneous RAR we had open for this file, forever."
> We should introduce a global limit on how much memory to use for RAR, and evict old ones.

--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators
For more information on JIRA, see: http://www.atlassian.com/software/jira