[
https://issues.apache.org/jira/browse/IMPALA-14684?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=18062118#comment-18062118
]
Arnab Karmakar commented on IMPALA-14684:
-----------------------------------------
I’m picking this up and will move it forward.
[~stigahuang] You've mentioned in the description that we need the metrics for
"1s" as well but I think that the interval is too short for meaningful EWMA and
would be very noisy. Instead we should use the standard Dropwizard metrics of
1/5/15 minute EWMA values. Also MetastoreEventsProcessor uses same intervals.
Id like to get your inputs on this.
Thanks
> Add metrics for CatalogdTableInvalidator
> ----------------------------------------
>
> Key: IMPALA-14684
> URL: https://issues.apache.org/jira/browse/IMPALA-14684
> Project: IMPALA
> Issue Type: New Feature
> Components: Catalog
> Reporter: Quanlong Huang
> Assignee: Arnab Karmakar
> Priority: Critical
>
> We need catalogd metrics to show how many tables are invalidated due to TTL
> and memory pressure. Also add metrics to show the rate of them, e.g. numbers
> in the past 1s/1m/5m/30m, etc.
> These help admins to adjust configurations like invalidate_tables_timeout_s
> and the JVM heap size of catalogd.
--
This message was sent by Atlassian Jira
(v8.20.10#820010)
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]
