diff --git hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/security/NMTokenSecretManagerInRM.java hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/security/NMTokenSecretManagerInRM.java index 1471f78..956391e 100644 --- hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/security/NMTokenSecretManagerInRM.java +++ hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/security/NMTokenSecretManagerInRM.java @@ -192,7 +192,7 @@ public void run() { public NMToken createAndGetNMToken(String applicationSubmitter, ApplicationAttemptId appAttemptId, Container container) { try { - this.readLock.lock(); + this.writeLock.lock(); HashSet nodeSet = this.appAttemptToNodeKeyMap.get(appAttemptId); NMToken nmToken = null; if (nodeSet != null) { @@ -208,7 +208,7 @@ public NMToken createAndGetNMToken(String applicationSubmitter, } return nmToken; } finally { - this.readLock.unlock(); + this.writeLock.unlock(); } }