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Posted to issues@hbase.apache.org by "Jacobo Coll (JIRA)" <ji...@apache.org> on 2016/08/24 10:35:21 UTC
[jira] [Created] (HBASE-16493) MapReduce counters not updated with
ScanMetrics
Jacobo Coll created HBASE-16493:
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Summary: MapReduce counters not updated with ScanMetrics
Key: HBASE-16493
URL: https://issues.apache.org/jira/browse/HBASE-16493
Project: HBase
Issue Type: Bug
Components: mapreduce
Affects Versions: 1.1.0, 1.0.0, 2.0.0
Reporter: Jacobo Coll
ScanMetrics were introduced in the [HBASE-4145]. These metrics were able to work even in a parallel environment such as MapReduce.
The TableRecordReader creates a Scanner with a copy of the given "scan", called "currentScan". The ScanMetrics are captured by the Scanner and modifies the given Scan instance, "currentScan". The TableRecordReader, after reading the last value, updates the job counters to aggregate them.
But since [HBASE-13030], the TableRecordReader reads the scanMetrics from the object "scan" instead of using the "currentScan"
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