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Posted to issues@ozone.apache.org by "Stephen O'Donnell (Jira)" <ji...@apache.org> on 2022/12/13 10:52:00 UTC

[jira] [Resolved] (HDDS-6848) Datanode's replication queue full of timeout replication task

     [ https://issues.apache.org/jira/browse/HDDS-6848?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Stephen O'Donnell resolved HDDS-6848.
-------------------------------------
    Resolution: Duplicate

> Datanode's replication queue full of timeout replication task
> -------------------------------------------------------------
>
>                 Key: HDDS-6848
>                 URL: https://issues.apache.org/jira/browse/HDDS-6848
>             Project: Apache Ozone
>          Issue Type: Improvement
>            Reporter: Janus Chow
>            Assignee: Janus Chow
>            Priority: Major
>              Labels: pull-request-available
>
> If a datanode crashes, the blocks on the datanode will be added to inflightReplication to fulfill the replication factor. 
> When the datanode is restarted, the containers don't need to be replicated anymore, but the replication commands have been sent to datanodes. If the crashed datanodes holds many containers, there will be many replication commands which will cause jams on Datanodes's replication queue, and the big replication traffic will also cause problems to the whole cluster.



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