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Date: Sat, 28 Mar 2015 06:16:53 +0000 (UTC)
From: "Andrew Mains (JIRA)" <jira@apache.org>
To: dev@hbase.apache.org
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Subject: [jira] [Created] (HBASE-13356) HBase should provide an InputFormat
 supporting multiple scans in mapreduce jobs over snapshots
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Andrew Mains created HBASE-13356:
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             Summary: HBase should provide an InputFormat supporting multiple scans in mapreduce jobs over snapshots
                 Key: HBASE-13356
                 URL: https://issues.apache.org/jira/browse/HBASE-13356
             Project: HBase
          Issue Type: New Feature
          Components: mapreduce
            Reporter: Andrew Mains
            Priority: Minor


Currently, HBase supports the pushing of multiple scans to mapreduce jobs over live tables (via MultiTableInputFormat) but only supports a single scan for mapreduce jobs over table snapshots. It would be handy to support multiple scans over snapshots as well, probably through another input format (MultiTableSnapshotInputFormat?). To mimic the functionality present in MultiTableInputFormat, the new input format would likely have to take in the names of all snapshots used in addition to the scans.


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