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https://issues.apache.org/jira/browse/ACCUMULO-387?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13210658#comment-13210658
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Keith Turner commented on ACCUMULO-387:
---------------------------------------
This input format could run against offline tables. It does not care if you
clone or not, but it will only start if the table is offline. This is easy to
achieve, just clone the table and take it offline. This is simpler than trying
to adjust settings to disable compactions and reads, setting that may change
over time.
One draw back with this approach is that the current code to take a table
offline is async. It starts a table going offline, but does not wait for it to
happen. The inputformat could probably get around this pretty easily. It
could check that the table states is offline and then wait for there to be no
locations in the metadata table. Once there are no locations it could start
computing input splits.
> Support map reduce directly over files
> --------------------------------------
>
> Key: ACCUMULO-387
> URL: https://issues.apache.org/jira/browse/ACCUMULO-387
> Project: Accumulo
> Issue Type: New Feature
> Reporter: Keith Turner
> Assignee: Eric Newton
> Fix For: 1.4.1
>
>
> Support map reduce jobs that directly read Accumulo files.
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