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From "Ashish Singhi (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (HBASE-16493) MapReduce counters not updated with ScanMetrics
Date Fri, 30 Sep 2016 06:42:20 GMT

     [ https://issues.apache.org/jira/browse/HBASE-16493?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Ashish Singhi resolved HBASE-16493.
    Resolution: Duplicate

Duplicate of HBASE-16678

> 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: 1.0.0, 2.0.0, 1.1.0
>            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
> But since [HBASE-13030], the TableRecordReader reads the scanMetrics from the object
"scan" instead of using the "currentScan"

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