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From "John Vines (JIRA)" <>
Subject [jira] [Commented] (ACCUMULO-1737) MultiTableBatchScanner
Date Tue, 24 Sep 2013 20:51:05 GMT


John Vines commented on ACCUMULO-1737:

I mean, the behavior will give you ordered batches out of order, but I don't think that's
a guaranteed behavior (hence my comment).
> MultiTableBatchScanner
> ----------------------
>                 Key: ACCUMULO-1737
>                 URL:
>             Project: Accumulo
>          Issue Type: Improvement
>          Components: client
>            Reporter: John Vines
> We currently have the BatchScanner, which does not guarantee in order results with the
benefit of higher parallellization. Unfortunately, if you want to query multiple tables, the
only option is to chain BatchScanner's together, but you lose something of the optimizations
under the hood for both using system resources well as well as getting data back in order.
We have another ticket for multi-table accumulo input format for mapreduce, but I would like
to see a multi table version of a batch scanner for regular client use.

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