HBASE-4857 Recursive loop on KeeperException in AuthenticationTokenSecretManager

git-svn-id: https://svn.apache.org/repos/asf/hbase/trunk@1205654 13f79535-47bb-0310-9956-ffa450edef68

CHANGES.txt

@@ -442,6 +442,8 @@ Release 0.92.0 - Unreleased
    HBASE-4842  [hbck] Fix intermittent failures on TestHBaseFsck.testHBaseFsck
                (Jon Hsieh)
    HBASE-4308  Race between RegionOpenedHandler and AssignmentManager (Ram)
+   HBASE-4857  Recursive loop on KeeperException in
+               AuthenticationTokenSecretManager/ZKLeaderManager
 
   TESTS
    HBASE-4450  test for number of blocks read: to serve as baseline for expected

security/src/main/java/org/apache/hadoop/hbase/security/token/AuthenticationTokenSecretManager.java

@@ -287,6 +287,10 @@ public class AuthenticationTokenSecretManager
 
     @Override
     public void stop(String reason) {
+      if (stopped) {
+        return;
+      }
+
       stopped = true;
       // prevent further key generation when stopping
       if (isMaster) {