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Date: Fri, 9 Sep 2011 18:11:08 +0000 (UTC)
From: "Brandon Williams (JIRA)" <jira@apache.org>
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Subject: [jira] [Commented] (CASSANDRA-3163) SlabAllocator OOMs much faster
 than HeapAllocator
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    [ https://issues.apache.org/jira/browse/CASSANDRA-3163?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13101406#comment-13101406 ] 

Brandon Williams commented on CASSANDRA-3163:
---------------------------------------------

+1

> SlabAllocator OOMs much faster than HeapAllocator
> -------------------------------------------------
>
>                 Key: CASSANDRA-3163
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-3163
>             Project: Cassandra
>          Issue Type: Bug
>          Components: Core
>    Affects Versions: 1.0.0
>         Environment: 3 nodes, 1G heap, RF=2
>            Reporter: Brandon Williams
>             Fix For: 1.0.0
>
>         Attachments: 3163-v2.txt, 3163-v3.txt, 3163-v4.txt, 3163.txt, system.log.gz
>
>
> SlabAllocator will OOM with stress at around 5.5M rows, which in this configuration is roughly 3.3M rows per node.  Reverting to the HeapAllocator allowed all 10M rows to finish.  Examining the SA heap dump in MAT just shows ~98% of the heap is in 'remainder'

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