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https://issues.apache.org/jira/browse/KAFKA-2733?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15047676#comment-15047676
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ASF GitHub Bot commented on KAFKA-2733:
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GitHub user guozhangwang opened a pull request:
https://github.com/apache/kafka/pull/643
KAFKA-2733: Standardize metric name for Kafka Streams
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/guozhangwang/kafka K2733
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/kafka/pull/643.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #643
----
commit c437400f28c711a89fbab0c9fd179aa817f8c1fb
Author: Guozhang Wang <wangg...@gmail.com>
Date: 2015-12-08T23:20:25Z
v1
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> Distinguish metric names inside the sensor registry
> ---------------------------------------------------
>
> Key: KAFKA-2733
> URL: https://issues.apache.org/jira/browse/KAFKA-2733
> Project: Kafka
> Issue Type: Sub-task
> Reporter: Guozhang Wang
> Fix For: 0.9.0.1
>
>
> Since stream tasks can share the same StreamingMetrics object, and the
> MetricName is distinguishable only by the group name (same for the same type
> of states, and for other streaming metrics) and the tags (currently only the
> client-ids of the StreamThead), when we have multiple tasks within a single
> stream thread, it could lead to IllegalStateException upon trying to registry
> the same metric from those tasks.
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