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Posted to hdfs-dev@hadoop.apache.org by "Weiwei Yang (JIRA)" <ji...@apache.org> on 2017/08/25 08:48:00 UTC
[jira] [Created] (HDFS-12354) Improve the throttle algorithm in
Datanode BlockDeletingService
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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