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https://issues.apache.org/jira/browse/FLINK-4733?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15605046#comment-15605046
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ASF GitHub Bot commented on FLINK-4733:
---------------------------------------
Github user zentol commented on the issue:
https://github.com/apache/flink/pull/2616
Note that 2 new methods were introduced into the `StreamConfig`:
`setChainStart() / isChainStart()` to better determine which output counter
should be used for the task. Previously this used the same logic as the
operator name extraction, which was bugged for multi-chains.
> Port WebFrontend to new metric system
> -------------------------------------
>
> Key: FLINK-4733
> URL: https://issues.apache.org/jira/browse/FLINK-4733
> Project: Flink
> Issue Type: Improvement
> Components: Metrics, TaskManager, Webfrontend
> Affects Versions: 1.1.2
> Reporter: Chesnay Schepler
> Assignee: Chesnay Schepler
> Fix For: 1.2.0
>
>
> While the WebFrontend has access to the metric system it still relies on
> older code in some parts.
> The TaskManager metrics are still gathered using the Codahale library and
> send with the heartbeats.
> Task related metrics (numRecordsIn etc) are still gathered using
> accumulators, which are accessed through the execution graph.
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