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https://issues.apache.org/jira/browse/HDFS-12196?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16108138#comment-16108138
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Anu Engineer commented on HDFS-12196:
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bq. That absolutely makes sense. I have already created an abstract class
AbstractRecyclingService which is a base class for all Recycling Services
I was suggesting something little more ambitious. I was suggesting that we need
to create an interface called Background tasks for KSM, SCM and Datanode. All
tasks like Recycling task or volume scanner or garbage collection tasks for
incomplete objects etc, Should run in that mode.
I do see that having a Recycling Interface is nice, so it is easy to see how
KSM Recycling, SCM Recycling, and Datanode stuff all relate to each other. I
would really love if they are all part of Background Task interface for Ozone.
> Ozone: DeleteKey-2: Implement container recycling service to delete stale
> blocks at background
> ----------------------------------------------------------------------------------------------
>
> Key: HDFS-12196
> URL: https://issues.apache.org/jira/browse/HDFS-12196
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Components: ozone
> Reporter: Weiwei Yang
> Assignee: Weiwei Yang
> Attachments: HDFS-12196-HDFS-7240.001.patch
>
>
> Implement a recycling service running on datanode to delete stale blocks.
> The recycling service scans staled blocks for each container and delete
> chunks and references periodically.
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