DLM Release Notes
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Behavioral Changes

Snapshot enablement changes are explained.

Behavior in DLM 1.1 release Behavior in DLM 1.2.0 release
Snapshot-based HDFS replication is enabled by default when source HDFS directory is marked as snapshottable. Snapshot-based HDFS replication should be explicitly enabled while creating replication policy.
Snapshot-based replication can be enabled only if DLM login user is HDFS superuser. Snapshot-based replication can be enabled by any DLM logged in user, provided the directory under replication is enabled with snapshots.