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https://issues.apache.org/jira/browse/IMPALA-12822?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Zhi Tang reassigned IMPALA-12822:
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Assignee: Zhi Tang
> Set up Impala caller context to HDFS
> ------------------------------------
>
> Key: IMPALA-12822
> URL: https://issues.apache.org/jira/browse/IMPALA-12822
> Project: IMPALA
> Issue Type: Bug
> Reporter: Zhi Tang
> Assignee: Zhi Tang
> Priority: Major
>
> If Impala reads data from HDFS or writes data into HDFS, a corresponding
> operation record with impala caller contexts will be written into
> hdfs-audit.log. That can help users to better diagnose and understand how
> specific queries impacting parts of the Hadoop system and potential problems
> they may be creating (e.g. overloading NN). As HDFS mentioned in HDFS-9184,
> for a given HDFS operation, it's very helpful to track which upper level job
> issues it.
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