[jira] [Updated] (HDDS-8314) SnapDiff job and compaction DAG/SST file pruning synchronization

["Hemant Kumar (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/HDDS-8314?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Hemant Kumar updated HDDS-8314:
-------------------------------
    Fix Version/s: 1.4.0

> SnapDiff job and compaction DAG/SST file pruning synchronization
> ----------------------------------------------------------------
>
>                 Key: HDDS-8314
>                 URL: https://issues.apache.org/jira/browse/HDDS-8314
>             Project: Apache Ozone
>          Issue Type: Sub-task
>            Reporter: Hemant Kumar
>            Assignee: Hemant Kumar
>            Priority: Major
>              Labels: pull-request-available
>             Fix For: 1.4.0
>
>
> Currently, it is possible that when snapDiff job is running we may loose some of compaction DAG if snapshots timing is overlapping with time by which snapshot becomes stale in compaction DAG.
> For example, if one or both of the snapshots of snapDiff job are 30 days old and compaction DAG pruning service is removing [30 days|https://github.com/apache/ozone/blob/0ebb555fab01117dd568cafa70275acea398894c/hadoop-hdds/common/src/main/java/org/apache/hadoop/ozone/OzoneConfigKeys.java#L598-L604] older snapshots, we could be in that situation.
> This task is to introduce the read/write synchronization in compaction DAG.



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