[jira] [Resolved] (TEZ-1344) Combiner counters reported by Tez look wrong

["Alexander Pivovarov (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/TEZ-1344?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Alexander Pivovarov resolved TEZ-1344.
--------------------------------------
    Resolution: Cannot Reproduce

> Combiner counters reported by Tez look wrong
> --------------------------------------------
>
>                 Key: TEZ-1344
>                 URL: https://issues.apache.org/jira/browse/TEZ-1344
>             Project: Apache Tez
>          Issue Type: Bug
>            Reporter: Cheolsoo Park
>            Priority: Minor
>
> Combiner input/output counters reported by a Tez job seems wrong
> {code}
> org.apache.hadoop.mapreduce.TaskCounter:
> COMBINE_OUTPUT_RECORDS 35,977,263,353
> COMBINE_INPUT_RECORDS 1,000,529,333
> {code}
> As can be seen, combiner output records > input records?!
> The same counters from a MR job looks as follows-
> {code}
> Map-Reduce Framework:
> Combine output records 1,000,316,600
> Combine input records 35,977,049,632
> {code}
> Somehow input and output are swapped?



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