[GitHub] vancefantasy commented on issue #667: Consumer rebalance problem when using docker container

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vancefantasy commented on issue #667: Consumer rebalance problem when using docker container
URL: https://github.com/apache/rocketmq/issues/667#issuecomment-453735825
 
 
   @huanwei 
   
   clientId:
   
        public String buildMQClientId() {
           StringBuilder sb = new StringBuilder();
           sb.append(this.getClientIP());
           sb.append("@");
           sb.append(this.getInstanceName());
           if (!UtilAll.isBlank(this.unitName)) {
               sb.append("@");
               sb.append(this.unitName);
           }
           return sb.toString();
       }
   
   instanceName:
   
       private String instanceName = System.getProperty("rocketmq.client.name", "DEFAULT");
   
       public void changeInstanceNameToPID() {
           if (this.instanceName.equals("DEFAULT")) {
               this.instanceName = String.valueOf(UtilAll.getPid());
           }
       }
   
   在docker环境下（使用host模式），clientIp和pid都是一样的。当然clientIp也一样的确切原因还没完全确认，[可能和引入Rancher有关](https://github.com/rancher/rancher/issues/5499)。
   
   <img width="154" alt="wx20190112-180557 2x" src="https://user-images.githubusercontent.com/42924205/51071992-c48c2300-1694-11e9-8b4b-c949f446e0a5.png">
   
   https://github.com/apache/rocketmq/pull/668
   

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