Zakelly commented on code in PR #24402:
URL: https://github.com/apache/flink/pull/24402#discussion_r1515510403


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flink-runtime/src/main/java/org/apache/flink/runtime/state/LocalBackupAndRecoveryDirectoryProvider.java:
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@@ -48,7 +48,7 @@
  *
  * <p>
  */
-public interface LocalRecoveryDirectoryProvider extends Serializable {
+public interface LocalBackupAndRecoveryDirectoryProvider extends Serializable {

Review Comment:
   The 'backup' means the copy of snapshot here, not do local backup in a 
narrow sense. local-recovery is omitted form 'recovery from a local backup', 
also needs a place providing the local backup. So I think local backup is a 
precise description for this usage. Well I agree to add 'Snapshot' here, 
'SnapshotLocalBackupDirectoryProvider' or 'LocalSnapshotBackupDirectory' is 
fine with me. WDYT?



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