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https://issues.apache.org/jira/browse/HDFS-15479?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17161319#comment-17161319
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Shashikant Banerjee commented on HDFS-15479:
--------------------------------------------
Thanks [~szetszwo] for working on this. The changes look ok .
{code:java}
final Snapshot earliest = snapshottable.getSnapshotList().get(0);
{code}
I think the snapshot list is sorted by name and the 1st element in the list may
not be the earliest snapshot ? can you plz check?
> Ordered snapshot deletion: make it a configurable feature
> ---------------------------------------------------------
>
> Key: HDFS-15479
> URL: https://issues.apache.org/jira/browse/HDFS-15479
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Components: snapshots
> Reporter: Tsz-wo Sze
> Assignee: Tsz-wo Sze
> Priority: Major
> Attachments: h15479_20200719.patch
>
>
> Ordered snapshot deletion is a configurable feature. In this JIRA, a conf is
> added.
> When the feature is enabled, only the earliest snapshot can be deleted. For
> deleting the non-earliest snapshots, the behavior is temporarily changed to
> throwing an exception in this JIRA. In HDFS-15480, the behavior of deleting
> the non-earliest snapshots will be changed to marking them as deleted.
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