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Subject [GitHub] ivmaykov commented on a change in pull request #753: ZOOKEEPER-3204: Reconfig tests are constantly failing on 3.5 after applying Java 11 fix
Date Fri, 01 Feb 2019 22:45:54 GMT
ivmaykov commented on a change in pull request #753: ZOOKEEPER-3204: Reconfig tests are constantly
failing on 3.5 after applying Java 11 fix
URL: https://github.com/apache/zookeeper/pull/753#discussion_r253221008
 
 

 ##########
 File path: zookeeper-server/src/main/java/org/apache/zookeeper/server/NettyServerCnxn.java
 ##########
 @@ -303,19 +277,126 @@ private boolean checkFourLetterWord(final Channel channel,
         }
     }
 
-    public void receiveMessage(ChannelBuffer message) {
+    /**
+     * Process incoming message. This should only be called from the event
+     * loop thread.
+     * @param buf the message bytes to process.
+     */
+    void processMessage(ByteBuf buf) {
+        assert channel.eventLoop().inEventLoop();
 
 Review comment:
   nit: in our internal fork, we changed these asserts to if-throws (I forgot to upstream
this change, will do it on master branch shortly). I don't think it matters that much since
they've never fired. Anyway, what do you think about replacing this assert with:
   
   ```
           if (!channel.eventLoop().inEventLoop()) {
               throw new IllegalStateException(
                       "processMessage() called from non-EventLoop thread");
           }
   ```

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