HADOOP-19337. Fix ZKFailoverController NPE issue due to integer overf…

…low in parseInt when initHM. (#7165). Contributed by ConfX. Co-authored-by: saadsheralam <[email protected]> Signed-off-by: He Xiaoqiao <[email protected]>
apache · Dec 8, 2024 · de8b506 · de8b506
1 parent 93a4dd0
commit de8b506
Showing 1 changed file with 5 additions and 2 deletions.
diff --git a/...common-project/hadoop-common/src/main/java/org/apache/hadoop/ha/ZKFailoverController.java b/...common-project/hadoop-common/src/main/java/org/apache/hadoop/ha/ZKFailoverController.java
@@ -263,8 +263,11 @@ private int doRun(String[] args)
       rpcServer.stopAndJoin();
 
       elector.quitElection(true);
-      healthMonitor.shutdown();
-      healthMonitor.join();
+
+      if (healthMonitor != null) {
+        healthMonitor.shutdown();
+        healthMonitor.join();
+      }
     }
     return 0;
   }