[jira] Commented: (CHUKWA-338) duplicate suppression in archiver

["Jerome Boulon (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/CHUKWA-338?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12730501#action_12730501 ] 

Jerome Boulon commented on CHUKWA-338:
--------------------------------------

The ChukwaArchiveKey contains a TimePartition so you may not removed all duplicates (outside of the 1 hour TimePartition window) and this will also be true in case of backfilling.
Is that a problem for you?

> 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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