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From "Bassam Tabbara (JIRA)" <j...@apache.org>
Subject [jira] Created: (HBASE-2095) TableInputFormat should support more confs for the scanner
Date Thu, 07 Jan 2010 08:14:01 GMT
TableInputFormat should support more confs for the scanner
----------------------------------------------------------

                 Key: HBASE-2095
                 URL: https://issues.apache.org/jira/browse/HBASE-2095
             Project: Hadoop HBase
          Issue Type: Improvement
          Components: mapreduce
    Affects Versions: 0.20.2
            Reporter: Bassam Tabbara
             Fix For: 0.20.3


TableInputFormat currently only supports hbase.mapreduce.scan and hbase.mapreduce.inputtable
confs. The scan conf is a Base64 encoded scanner object, which makes it difficult to use TIF
from hadoop pipes. I propose that the following confs be supported iff hbase.mapreduce.scan
is not set:

* hbase.mapreduce.scan.columns
* hbase.mapreduce.scan.timestamp
* hbase.mapreduce.scan.timerange.start
* hbase.mapreduce.scan.timerange.end
* hbase.mapreduce.scan.maxversions
* hbase.mapreduce.scan.cacheblocks
* hbase.mapreduce.scan.cachedrows

Ideally we would also support filters but I think that would be harder to implement.


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