[jira] [Commented] (PIG-4757) Job stats on successfully read/output records wrong with multiple inputs/outputs

["Daniel Dai (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/PIG-4757?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15082204#comment-15082204 ] 

Daniel Dai commented on PIG-4757:
---------------------------------

Posted several comments on RB: https://reviews.apache.org/r/41913

> Job stats on successfully read/output records wrong with multiple inputs/outputs
> --------------------------------------------------------------------------------
>
>                 Key: PIG-4757
>                 URL: https://issues.apache.org/jira/browse/PIG-4757
>             Project: Pig
>          Issue Type: Bug
>          Components: tez
>            Reporter: Rohini Palaniswamy
>            Assignee: Rohini Palaniswamy
>             Fix For: 0.16.0
>
>         Attachments: PIG-4757-1.patch
>
>
> TezVertexStats uses TaskCounter.INPUT_RECORDS_PROCESSED to display records read from MRInput. But in cases of replicate join or scalar it also includes replicate join input.  Need to have a pig specific counter (MULTI_INPUTS_RECORD_COUNTER) in POSimpleTezLoad.
> TezVertexStats uses TaskCounter.OUTPUT_RECORDS to display records stored to MROutput if there is single store. If there are multiple stores it uses MULTI_STORE_RECORD_COUNTER and there are no issues. If there is a single store with another output, then value from OUTPUT_RECORDS is wrong. Need to use MULTI_STORE_RECORD_COUNTER for all cases even if there is no multiple store.



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