li4wang commented on code in PR #1961:
URL: https://github.com/apache/zookeeper/pull/1961#discussion_r1070177732


##########
zookeeper-server/src/main/java/org/apache/zookeeper/server/ZooKeeperServer.java:
##########
@@ -1151,6 +1213,9 @@ protected void setLocalSessionFlag(Request si) {
     }
 
     public void submitRequest(Request si) {
+        if (state == State.MAINTENANCE) {
+            throw new IllegalStateException("Zookeeper server is in 
maintenance state");
+        }

Review Comment:
   Thanks for the feedback and inputs, @eolivelli  and @anmolnar 



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