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Date: Tue, 6 Sep 2011 01:29:10 +0000 (UTC)
From: "Jonathan Ellis (JIRA)" <jira@apache.org>
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Subject: [jira] [Commented] (CASSANDRA-3050) Global row cache
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    [ https://issues.apache.org/jira/browse/CASSANDRA-3050?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13097685#comment-13097685 ] 

Jonathan Ellis commented on CASSANDRA-3050:
-------------------------------------------

Hmm.  I guess we could have the cache provider include a sizeInMemory method?

For serialized off-heap cache we can just use the FreeableMemory size().  For on-heap cache we can use the serializedSize * liveRatio from the CF's memtable.

> Global row cache
> ----------------
>
>                 Key: CASSANDRA-3050
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-3050
>             Project: Cassandra
>          Issue Type: Improvement
>          Components: Core
>            Reporter: Jonathan Ellis
>            Assignee: Pavel Yaskevich
>            Priority: Minor
>             Fix For: 1.1
>
>
> Row-cache-per-columnfamily is difficult to configure well as columnfamilies are added, similar to how memtables were difficult pre-CASSANDRA-2006.

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