[jira] [Commented] (FLINK-23928) Test the buffer debloating

["Chesnay Schepler (Jira)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/FLINK-23928?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17403345#comment-17403345 ] 

Chesnay Schepler commented on FLINK-23928:
------------------------------------------

What's the relationship of this ticket to FLINK-23456?

> Test the buffer debloating
> --------------------------
>
>                 Key: FLINK-23928
>                 URL: https://issues.apache.org/jira/browse/FLINK-23928
>             Project: Flink
>          Issue Type: Sub-task
>            Reporter: Anton Kalashnikov
>            Priority: Major
>              Labels: release-testing
>             Fix For: 1.14.0
>
>
> # {color:#6a8759}Configure the buffer debloat by setting `taskmanager.network.memory.buffer-debloat.enabled` to true{color}
>  # {color:#6a8759}Start the job with a long checkpoint time{color}
>  # {color:#6a8759}Check the alignment time for each subtask it should be near taskmanager.network.memory.buffer-debloat.target{color}
>  # {color:#6a8759}Check the checkpoint time it should be near taskCount * taskmanager.network.memory.buffer-debloat.target{color}
>  # {color:#6a8759}Try to change taskmanager.network.memory.buffer-debloat.target. Checkponint time should be changed correspondetly.{color}
>  # {color:#6a8759}Check metrics {color}{color:#6a8759}estimatedTimeToConsumerBuffersMs and {color}{color:#6a8759}debloatedBufferSize which also should depend on the current debloat configuration.
> {color}
> {color:#6a8759} {color}
> {color:#6a8759}Other configuration which can be changed for test.{color}
>  * {color:#6a8759}taskmanager.memory.min-segment-size(if this would be equal to taskmanager.memory.segment-size then the behaviour should be same as with disabled buffer debloat)
> {color}
>  * {color:#6a8759}taskmanager.network.memory.buffer-debloat.period{color}
>  * {color:#6a8759}taskmanager.network.memory.buffer-debloat.samples{color}
>  * {color:#6a8759}taskmanager.network.memory.buffer-debloat.threshold-percentages{color}



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