HBASE-22440. Override getWalGroupsReplicationStatus to avoid NPE

Signed-off-by: Duo Zhang <[email protected]>
Zohar163 · May 23, 2019 · f773043 · f773043
1 parent f1a8aa4
commit f773043
Showing 1 changed file with 9 additions and 0 deletions.
diff --git a/hbase-server/src/main/java/org/apache/hadoop/hbase/master/HMaster.java b/hbase-server/src/main/java/org/apache/hadoop/hbase/master/HMaster.java
@@ -192,6 +192,7 @@
 import org.apache.hadoop.hbase.replication.master.ReplicationHFileCleaner;
 import org.apache.hadoop.hbase.replication.master.ReplicationLogCleaner;
 import org.apache.hadoop.hbase.replication.master.ReplicationPeerConfigUpgrader;
+import org.apache.hadoop.hbase.replication.regionserver.ReplicationStatus;
 import org.apache.hadoop.hbase.security.AccessDeniedException;
 import org.apache.hadoop.hbase.security.SecurityConstants;
 import org.apache.hadoop.hbase.security.UserProvider;
@@ -3991,4 +3992,12 @@ public SnapshotQuotaObserverChore getSnapshotQuotaObserverChore() {
   public SyncReplicationReplayWALManager getSyncReplicationReplayWALManager() {
     return this.syncReplicationReplayWALManager;
   }
+
+  @Override
+  public Map<String, ReplicationStatus> getWalGroupsReplicationStatus() {
+    if (!this.isOnline() || !LoadBalancer.isMasterCanHostUserRegions(conf)) {
+      return new HashMap<>();
+    }
+    return super.getWalGroupsReplicationStatus();
+  }
 }