[jira] [Updated] (HDFS-12354) Shuffle container list for BlockDeletingService

["Weiwei Yang (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/HDFS-12354?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Weiwei Yang updated HDFS-12354:
-------------------------------
    Summary: Shuffle container list for BlockDeletingService  (was: Improve the throttle algorithm in Datanode BlockDeletingService )

> Shuffle container list for BlockDeletingService
> -----------------------------------------------
>
>                 Key: HDFS-12354
>                 URL: https://issues.apache.org/jira/browse/HDFS-12354
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>          Components: datanode, ozone
>            Reporter: Weiwei Yang
>            Assignee: Weiwei Yang
>
> {{BlockDeletingService}} is a per-datanode container block deleting service takes in charge of the "real" deletion of ozone blocks. It spawns a worker thread per container and delete blocks/chunks from disk as background threads. The number of threads currently is throttled by {{ozone.block.deleting.container.limit.per.interval}}, but there is a potential problem. Containers are sorted so it always fetch same of containers, we need to fix this by creating an API in {{ContainerManagerImpl}} to get a shuffled list of containers.



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