Weiwei Yang created HDFS-12354:
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Summary: Improve the throttle algorithm in Datanode
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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