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Posted to dev@chukwa.apache.org by "Ari Rabkin (JIRA)" <ji...@apache.org> on 2009/07/13 22:41:14 UTC
[jira] Reopened: (CHUKWA-338) duplicate suppression in archiver
[ https://issues.apache.org/jira/browse/CHUKWA-338?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Ari Rabkin reopened CHUKWA-338:
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As per Jerome's observation, this doesn't catch all duplicates.
Proposed fix: Change sort keys, ignore time partition for purposes of assigning chunks to a reducer. And be more aggressive in using content to resolve dups.
> duplicate suppression in archiver
> ---------------------------------
>
> Key: CHUKWA-338
> URL: https://issues.apache.org/jira/browse/CHUKWA-338
> Project: Hadoop Chukwa
> Issue Type: New Feature
> Components: Data Processors
> Reporter: Ari Rabkin
> Assignee: Ari Rabkin
> Fix For: 0.3.0
>
> Attachments: archiveDupSuppress.patch
>
>
> Right now, Archiver uses an identity reducer.
> It should be straightforward to write a custom reducer that does duplicate detection and suppression if we get multiple chunks with the same key.
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