Tsz-wo Sze created HDFS-15477:
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Summary: Enforce in-order snapshot deletion
Key: HDFS-15477
URL: https://issues.apache.org/jira/browse/HDFS-15477
Project: Hadoop HDFS
Issue Type: Improvement
Components: snapshots
Reporter: Tsz-wo Sze
Assignee: Tsz-wo Sze
Snapshot deletion has caused a few bugs earlier such as HDFS-13101 and
HDFS-15313. In this JIRA, we propose enforcing in-order snapshot deletion --
only the earliest snapshot is actually deleted from the file system. The other
snapshots are only marked as deleted. They will be actually deleted from the
file system until all the earlier snapshots are deleted.
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