fuyou001 opened a new pull request #225: [ROCKETMQ-361] increase notify   
consumerIds changed  semaphore size 
URL: https://github.com/apache/rocketmq/pull/225
 
 
   ## What is the purpose of the change
    thousands of client Sub message, when subscription change, broker notify 
all client with same cid,
   causing related ThreadPoolExecutor pool full, so we  increase semaphore size 
and wait time
   ## Brief changelog
   
    increase notify   consumerIds changed  semaphore size 
   ## Verifying this change
   
   
   
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