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Posted to issues@flink.apache.org by "Aljoscha Krettek (JIRA)" <ji...@apache.org> on 2017/04/03 12:26:41 UTC
[jira] [Closed] (FLINK-3427) Add watermark monitoring to JobManager
web frontend
[ https://issues.apache.org/jira/browse/FLINK-3427?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Aljoscha Krettek closed FLINK-3427.
-----------------------------------
Resolution: Fixed
Fix Version/s: 1.3.0
> Add watermark monitoring to JobManager web frontend
> ---------------------------------------------------
>
> Key: FLINK-3427
> URL: https://issues.apache.org/jira/browse/FLINK-3427
> Project: Flink
> Issue Type: Improvement
> Components: Streaming, Webfrontend
> Reporter: Robert Metzger
> Fix For: 1.3.0
>
>
> Currently, its quite hard to figure out issues with the watermarks.
> I think we can improve the situation by reporting the following information through the metrics system:
> - Report the current low watermark for each operator (this way, you can see if one operator is preventing the watermarks to rise)
> - Report the number of events arrived after the low watermark (users can see how accurate the watermarks are)
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