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Shardul Singh updated HBASE-22980: ---------------------------------- Component/s: mapreduce > HRegionPartioner getPartition() method incorrectly partitions the regions of > the table. > --------------------------------------------------------------------------------------- > > Key: HBASE-22980 > URL: https://issues.apache.org/jira/browse/HBASE-22980 > Project: HBase > Issue Type: Bug > Components: mapreduce > Environment: Instead of > {code:java} > if(i >= numPartitions-1) > {code} > It should be > {code:java} > if(i >= numPartitions) > {code} > Reporter: Shardul Singh > Assignee: Shardul Singh > Priority: Minor > > In HRegionPartitioner getPartition(), the case where we have less reduces > than region is incorrect. > https://github.com/apache/hbase/blob/fbd5b5e32753104f88600b0f4c803ab5659bce64/hbase-mapreduce/src/main/java/org/apache/hadoop/hbase/mapreduce/HRegionPartitioner.java#L92 > Consider the following scenario: > 1. if there are 5 regions for the table, partitions = 5 and number of > reducers is also 5. > So in this case above code should not return true. But for the last region > when i=4, getPartition should return 4 but it returns 2 because it falls in > the case of when we have less reduces than region and returns true for the > above condition. -- This message was sent by Atlassian Jira (v8.3.2#803003)