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Date: Sun, 22 Jan 2012 23:22:40 +0000 (UTC)
From: "Vijay (Commented) (JIRA)" <jira@apache.org>
To: commits@cassandra.apache.org
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Subject: [jira] [Commented] (CASSANDRA-2392) Saving IndexSummaries to disk
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    [ https://issues.apache.org/jira/browse/CASSANDRA-2392?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13190817#comment-13190817 ] 

Vijay commented on CASSANDRA-2392:
----------------------------------

>>> Will you be able to deal with CASSANDRA-3762 in time for 1.1 release?
Yeah i have a proto type working just have to do a quick benchmark to see if it will make sense.... :)
                
> Saving IndexSummaries to disk
> -----------------------------
>
>                 Key: CASSANDRA-2392
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-2392
>             Project: Cassandra
>          Issue Type: Improvement
>            Reporter: Chris Goffinet
>            Assignee: Vijay
>            Priority: Minor
>             Fix For: 1.2
>
>         Attachments: 0001-re-factor-first-and-last.patch, 0001-save-summaries-to-disk-v4.patch, 0001-save-summaries-to-disk.patch, 0002-save-summaries-to-disk-v2.patch, 0002-save-summaries-to-disk-v3.patch, 0002-save-summaries-to-disk.patch
>
>
> For nodes with millions of keys, doing rolling restarts that take over 10 minutes per node can be painful if you have 100 node cluster. All of our time is spent on doing index summary computations on startup. It would be great if we could save those to disk as well. Our indexes are quite large.

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