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https://issues.apache.org/jira/browse/FLINK-4923?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15614058#comment-15614058
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ASF GitHub Bot commented on FLINK-4923:
---------------------------------------
Github user zhuhaifengleon commented on a diff in the pull request:
https://github.com/apache/flink/pull/2693#discussion_r85463825
--- Diff:
flink-runtime/src/main/java/org/apache/flink/runtime/taskmanager/Task.java ---
@@ -347,6 +348,12 @@ public Task(
// finally, create the executing thread, but do not start it
executingThread = new Thread(TASK_THREADS_GROUP, this,
taskNameWithSubtask);
+
+ // add metrics for buffers
+
this.metrics.getIOMetricGroup().getBuffersGroup().gauge("inputQueueLength", new
TaskIOMetricGroup.InputBuffersGauge(this));
--- End diff --
Stephan, have you merged this already? I will do that in a patch after
discussion with Chesnay if you had merged it.
> Expose input/output buffers and bufferPool usage as a metric for a Task
> -----------------------------------------------------------------------
>
> Key: FLINK-4923
> URL: https://issues.apache.org/jira/browse/FLINK-4923
> Project: Flink
> Issue Type: Improvement
> Components: Metrics
> Reporter: zhuhaifeng
> Assignee: zhuhaifeng
> Priority: Minor
> Fix For: 1.2.0
>
>
> We should expose the following Metrics on the TaskIOMetricGroup:
> 1. Buffers.inputQueueLength: received buffers of InputGates for a task
> 2. Buffers.outputQueueLength: buffers of produced ResultPartitions for a task
> 3. Buffers.inPoolUsage: usage of InputGates buffer pool for a task
> 4. Buffers.outPoolUsage: usage of produced ResultPartitions buffer pool for
> a task
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