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https://issues.apache.org/jira/browse/ACCUMULO-1854?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13814167#comment-13814167
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Josh Elser commented on ACCUMULO-1854:
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My initial approach is to introduce the notion of a "sequence id" to the
Input/Output Formats. Adding new methods to each class allows us to preserve
the old functionality (of one "configuration" per Configuration), yet also
gives clients the hooks to store multiple configurations.
My only concern was the contract on the getSplits() method. I believe we can
increment through each sequence id that we "gave" clients and attempt to set
each of them. Initial tests seem to show that this approach will work out.
> Accumulo{Input,Output}Format can't handle multiple configurations
> -----------------------------------------------------------------
>
> Key: ACCUMULO-1854
> URL: https://issues.apache.org/jira/browse/ACCUMULO-1854
> Project: Accumulo
> Issue Type: Bug
> Affects Versions: 1.4.4, 1.5.0
> Reporter: Josh Elser
> Assignee: Josh Elser
>
> I noticed that I was unable to properly use MultipleInputs (or any code which
> uses a similar approach) with the AccumuloInputFormat class because of the
> way it builds up information in the Configuration object.
> It would be useful to be able to have multiple instances of AIF (and AOF)
> configured within one Job (Configuration).
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