Github user shroman commented on a diff in the pull request:

    https://github.com/apache/incubator-rocketmq/pull/145#discussion_r133863841
  
    --- Diff: 
client/src/test/java/org/apache/rocketmq/client/consumer/rebalance/AllocateMessageQueueConsitentHashTest.java
 ---
    @@ -92,9 +92,9 @@ public void testAllocate2() {
     
         @Test
         public void testRun100RandomCase() {
    -        for (int i = 0; i < 100; i++) {
    -            int consumerSize = new Random().nextInt(200) + 1;//1-200
    -            int queueSize = new Random().nextInt(100) + 1;//1-100
    +        for (int i = 0; i < 10; i++) {
    +            int consumerSize = new Random().nextInt(20) + 1;//1-20
    --- End diff --
    
    Guys, what's the point to reduce these numbers (in other tests in this PR 
too)?
    @vongosling @zhouxinyu 
    
    IMO, we need to have a pretty high number for messages/queues/etc. in unit 
tests, because it is a large-scale messaging system. Unless it makes tests 
really slow.


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