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From "Keith Turner (JIRA)" <>
Subject [jira] [Commented] (ACCUMULO-1175) One off compaction/flush with user defined iterators
Date Tue, 12 Mar 2013 22:01:12 GMT


Keith Turner commented on ACCUMULO-1175:

Whats a use case for flush iterators?  A user can never be sure whats in memory, what has
and has not been flushed.
> One off compaction/flush with user defined iterators
> ----------------------------------------------------
>                 Key: ACCUMULO-1175
>                 URL:
>             Project: Accumulo
>          Issue Type: Improvement
>          Components: client, tserver
>            Reporter: John Vines
>            Assignee: Billie Rinaldi
>            Priority: Minor
> There may be situations where users want to do a one time run of an iterator to transform
or dump specific data. Currently the only way to do this is to turn on the iterator, do the
compaction and flush, and disable the iterator and hope there is consistency or nothing ran
in excess. It would be awesome if we had the ability for them to kick off a compaction/flush
and specify iterator(s) to run for that run only to do what they need done.

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