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https://issues.apache.org/jira/browse/HDDS-13639?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Krishna Kumar Asawa reassigned HDDS-13639:
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Assignee: Sarveksha Yeshavantha Raju
> optimize container iterator for frequent operation
> --------------------------------------------------
>
> Key: HDDS-13639
> URL: https://issues.apache.org/jira/browse/HDDS-13639
> Project: Apache Ozone
> Issue Type: Sub-task
> Reporter: Sumit Agrawal
> Assignee: Sarveksha Yeshavantha Raju
> Priority: Major
>
> One one of environment having 900K containers in a datanode, looping to the
> list for *1k times* taken *2.5 minutes as* issue for pipelines in error were
> 1k.
> So frequent looping large number of containers for filtering may take more
> time.
>
>
> Need check for below cases:
> 1. Can avoid this as used for only metrics, or better optimize the code for
> loop for each volume
> ContainerController.getContainerCount(HddsVolume)
> (org.apache.hadoop.ozone.container.ozoneimpl)
> -- HddsVolume.getContainers()
> (org.apache.hadoop.ozone.container.common.volume)
> -- – VolumeInfoMetrics.getContainers()
> (org.apache.hadoop.ozone.container.common.volume)
>
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