[
https://issues.apache.org/jira/browse/KUDU-2162?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16953923#comment-16953923
]
Thomas D'Silva commented on KUDU-2162:
--------------------------------------
[~wdberkeley]
We have a use case where we would like to get the kudu scan metrics (bytes
read, elapsed time, cpu time). Are you still working on this JIRA, if not I am
interested in picking it up.
> Expose stats about scan filters
> -------------------------------
>
> Key: KUDU-2162
> URL: https://issues.apache.org/jira/browse/KUDU-2162
> Project: Kudu
> Issue Type: Improvement
> Components: client
> Reporter: Thomas Tauber-Marshall
> Assignee: William Berkeley
> Priority: Major
>
> Impala is working on implementing runtime filters that get pushed down into
> Kudu using KuduScanner::AddConjunctPredicate()
> It would be useful for perf analysis and debugging to be able to include info
> in Impala's runtime profile about the effectiveness of the filters, eg.
> number of rows that are filtered.
> This would probably require at least two counters:
> - # of blocks that are entirely skipped
> - # of rows that are filtered from blocks that aren't entirely skipped
--
This message was sent by Atlassian Jira
(v8.3.4#803005)
