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Posted to issues-all@impala.apache.org by "Michael Ho (JIRA)" <ji...@apache.org> on 2018/08/15 06:00:07 UTC

[jira] [Updated] (IMPALA-7449) TotalNetworkThroughput in KrpcDataStreamSender is broken

     [ https://issues.apache.org/jira/browse/IMPALA-7449?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Michael Ho updated IMPALA-7449:
-------------------------------
    Summary: TotalNetworkThroughput in KrpcDataStreamSender is broken  (was: TotalNetworkThroughput in DataStreamSender is broken)

> TotalNetworkThroughput in KrpcDataStreamSender is broken
> --------------------------------------------------------
>
>                 Key: IMPALA-7449
>                 URL: https://issues.apache.org/jira/browse/IMPALA-7449
>             Project: IMPALA
>          Issue Type: Bug
>          Components: Distributed Exec
>    Affects Versions: Impala 3.0, Impala 2.12.0
>            Reporter: Michael Ho
>            Assignee: Michael Ho
>            Priority: Critical
>
> The network throughput computation fails to take into account of the fact that multiple RPCs can be happening in parallel. So, the total network time is actually larger than expected. As a result, the network throughput is underestimated.



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