yuanboliu commented on code in PR #6861:
URL: https://github.com/apache/hadoop/pull/6861#discussion_r1634096800
##########
hadoop-hdfs-project/hadoop-hdfs-rbf/src/main/java/org/apache/hadoop/hdfs/server/federation/resolver/order/DestinationOrder.java:
##########
@@ -29,11 +29,14 @@ public enum DestinationOrder {
LOCAL, // Local first
RANDOM, // Random order
HASH_ALL, // Follow consistent hashing
- SPACE; // Available space based order
+ SPACE, // Available space based order
+ LEADER_FOLLOWER; // try leader sub-cluster first, if failed, try followers
/** Approaches that write folders in all subclusters. */
public static final EnumSet<DestinationOrder> FOLDER_ALL = EnumSet.of(
HASH_ALL,
RANDOM,
- SPACE);
+ SPACE,
+ // leader-follower mode should make sure all directory exists in case of
switching
Review Comment:
fixed it.
--
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.
To unsubscribe, e-mail: [email protected]
For queries about this service, please contact Infrastructure at:
[email protected]
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]
