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https://issues.apache.org/jira/browse/HDDS-9198?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17871477#comment-17871477
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Hemant Kumar edited comment on HDDS-9198 at 8/7/24 6:23 PM:
------------------------------------------------------------
As maintained in
[comment#6491,|https://github.com/apache/ozone/pull/6491#issuecomment-2272219528,]
we can keep the batch purge if we use a single map. Will create new PR to use
single map.
was (Author: JIRAUSER297350):
As maintained in
[comment#6491,|https://github.com/apache/ozone/pull/6491#issuecomment-2272219528,]
we can keep the batch purge if we use a single map. Closing it for now and
will reopen it or create a new jira if we see any consistency issues even after
HDDS-11137/[#7018.|https://github.com/apache/ozone/pull/7018]
> Snapshot purge should be a atomic operation
> -------------------------------------------
>
> Key: HDDS-9198
> URL: https://issues.apache.org/jira/browse/HDDS-9198
> Project: Apache Ozone
> Issue Type: Sub-task
> Reporter: Hemant Kumar
> Assignee: Hemant Kumar
> Priority: Major
> Labels: pull-request-available
>
> After [HDDS-8665|https://issues.apache.org/jira/browse/HDDS-8665], there is a
> possibility that [snapshot
> cache|https://github.com/apache/ozone/pull/5201/files#diff-a424f5d3db1b2b8c0ffede0b757478c8ab646ea7f7990fd13f36f0346e6a73e0R102]
> gets updated but [snapshot chain
> update|https://github.com/apache/ozone/pull/5201/files#diff-a424f5d3db1b2b8c0ffede0b757478c8ab646ea7f7990fd13f36f0346e6a73e0R104]
> fails and leave it in a situation that snapshot's previous snapshot is
> pointing to something which doesn't exist or order is messed.
> We need to revisit this and see if there is any race condition issue in
> snapshot purge.
> One possible solution is, snapshot purge should be single snapshot purge
> request instead of batch request.
> Other thing is we may need locking in snapshot purge request handler.
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