diff --git hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/recovery/ZKRMStateStore.java hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/recovery/ZKRMStateStore.java index fdfd6cd..cc9870d 100644 --- hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/recovery/ZKRMStateStore.java +++ hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/recovery/ZKRMStateStore.java @@ -674,7 +674,7 @@ protected void updateRMDelegationTokenAndSequenceNumberInternal( doMultiWithRetries(opList); } - private void addStoreOrUpdateOps(ArrayList opList, + private synchronized void addStoreOrUpdateOps(ArrayList opList, RMDelegationTokenIdentifier rmDTIdentifier, Long renewDate, int latestSequenceNumber, boolean isUpdate) throws Exception { // store RM delegation token