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From "Vijay (Updated) (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (CASSANDRA-2392) Saving IndexSummaries to disk
Date Mon, 23 Jan 2012 22:37:47 GMT

     [ https://issues.apache.org/jira/browse/CASSANDRA-2392?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Vijay updated CASSANDRA-2392:
-----------------------------

    Attachment:     (was: 0001-save-summaries-to-disk-v4.patch)
    
> 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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