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From "Stu Hood (JIRA)" <j...@apache.org>
Subject [jira] Updated: (CASSANDRA-1404) Allow 'nodetool cleanup' to run when disk is more than 50% full
Date Mon, 18 Oct 2010 02:29:24 GMT

     [ https://issues.apache.org/jira/browse/CASSANDRA-1404?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Stu Hood updated CASSANDRA-1404:
--------------------------------

    Fix Version/s: 0.7.1

> Allow 'nodetool cleanup' to run when disk is more than 50% full
> ---------------------------------------------------------------
>
>                 Key: CASSANDRA-1404
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-1404
>             Project: Cassandra
>          Issue Type: Improvement
>          Components: Core
>            Reporter: Stu Hood
>            Priority: Minor
>             Fix For: 0.7.1
>
>
> Compaction sums the sizes of all ranges to estimate the output size in order to pick
a target drive. Anti-compactions directly drop ranges from sstables, and the volume of data
dropped can easily be calculated using the SSTable index. Using this knowledge in our estimate
in ColumnFamilyStore.getExpectedCompactedFileSize would allow 'nodetool cleanup' to run when
less than 50% of disk is available, in the case where ranges are being dropped (post node-move).

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