[GitHub] [rocketmq] jimgreen2013 commented on issue #504: No route info of this topic problem

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jimgreen2013 commented on issue #504: No route info of this topic problem
URL: https://github.com/apache/rocketmq/issues/504#issuecomment-526080981
 
 
   hi~ @duhenglucky
   i am new to rocketmq and i'd like to help you guys to make the *quick start* more friendly to newbies like me. If there are some errors in my statement, please point out.
   here we go, after some investigation, these are what i find:
   * the Start Broker part is fine, because parameter `-n locolhost:9876` set the name server.As that's a quick start, if you can put that in configuration file by default, that will be really nice.
   * `No route info of this topic problem` error. If i use the same 4.3.0 version client as in the official site suggests, the broker(version 4.4.0) won't create topic automatically. however 4.4.0 version client works! My suggestions are:
       1. modify the official site simple example page, modify the client version to 4.4.0  
       2. As that's a quick start for newbie like me, add the `autoCreateTopicEnable = true` to broker config file by default
       3. maybe you can check the code and find the real cause for this bug
   * in all quick start example, set name server by default,add some code like `producer.setNamesrvAddr("localhost:9876")`
   * default broker jvm memory configuration is `-Xms8g -Xmx8g -Xmn4g`, that's almost kill my poor computer.....  i think you can make it smaller for our poor personal computer~ The professional company guys will configure that option by themselves.

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