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https://issues.apache.org/jira/browse/IMPALA-7095?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Quanlong Huang updated IMPALA-7095:
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Fix Version/s: Impala 2.13.0
> Improve scanner thread counters in HDFS and Kudu scans
> ------------------------------------------------------
>
> Key: IMPALA-7095
> URL: https://issues.apache.org/jira/browse/IMPALA-7095
> Project: IMPALA
> Issue Type: Bug
> Components: Backend
> Affects Versions: Impala 3.0
> Reporter: Tim Armstrong
> Assignee: Tim Armstrong
> Priority: Major
> Labels: observability
> Fix For: Impala 2.13.0, Impala 3.1.0
>
>
> There are a few deficiencies here:
> * We don't track the peak number of scanner threads. Consumers of the profile
> often confuse NumScannerThreadsStarted with the peak.
> * Kudu scans are missing some metrics, e.g. AverageScannerThreadConcurrency.
> We should make sure that Kudu and HDFS are consistent.
> We should clean this up, and maybe refactor the code so that less logic is
> duplicated
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