zoucao created FLINK-23510: ------------------------------ Summary: add a new metric to show the max usage of inputExclusiveBuffer for each inputChannel Key: FLINK-23510 URL: https://issues.apache.org/jira/browse/FLINK-23510 Project: Flink Issue Type: Improvement Components: Runtime / Metrics Reporter: zoucao
Now, the 'inPoolUsage' and 'inputExclusiveBuffersUsage' describe the overall situation of a task's network usage. Sometimes, when the back pressure was present, I found the value of 'inPoolUsage' or 'inputExclusiveBuffersUsage' were very low, beacuse they were averaged by the input channel whose buffer usage is low. I propose to add a new metric for each task to record the maximum buffer usage of all input channels belonged to this task. -- This message was sent by Atlassian Jira (v8.3.4#803005)