bharatviswa504 opened a new pull request #695: HDDS-3137. OM RpcClient fail 
with java.lang.IllegalArgumentException.
URL: https://github.com/apache/hadoop-ozone/pull/695
 
 
   ## What changes were proposed in this pull request?
   
   Fix Rpcclient creation failing with java.lang.IllegalArgumentException
   
   ## What is the link to the Apache JIRA
   
   https://issues.apache.org/jira/browse/HDDS-3137
   
   ## How was this patch tested?
   
   Previously in docker-compose om-ha-s3, when one of the OM is killed using 
docker stop <<containerid>> used to fail with IllegalArgumentException.
   
   Now with the fix, tried on the docker-compose ha cluster.
   ```
   $ docker ps
   CONTAINER ID        IMAGE                            COMMAND                 
 CREATED             STATUS              PORTS                                  
          NAMES
   4181d2fb54bb        apache/ozone-runner:20191107-1   "/usr/local/bin/dumb…"  
 31 minutes ago      Up 31 minutes       0.0.0.0:9878->9878/tcp                 
          ozone-om-ha-s3_s3g_1
   81e613bda640        apache/ozone-runner:20191107-1   "/usr/local/bin/dumb…"  
 31 minutes ago      Up 31 minutes       0.0.0.0:9890->9872/tcp, 
0.0.0.0:9880->9874/tcp   ozone-om-ha-s3_om1_1
   cdd968cba61f        apache/ozone-runner:20191107-1   "/usr/local/bin/dumb…"  
 31 minutes ago      Up 31 minutes       0.0.0.0:32769->9864/tcp                
          ozone-om-ha-s3_datanode_1
   89f0e6a0f4c8        apache/ozone-runner:20191107-1   "/usr/local/bin/dumb…"  
 31 minutes ago      Up 31 minutes       0.0.0.0:9894->9872/tcp, 
0.0.0.0:9884->9874/tcp   ozone-om-ha-s3_om3_1
   c34627654655        apache/ozone-runner:20191107-1   "/usr/local/bin/dumb…"  
 31 minutes ago      Up 31 minutes       0.0.0.0:9876->9876/tcp                 
          ozone-om-ha-s3_scm_1
   d97ff58182c1        apache/ozone-runner:20191107-1   "/usr/local/bin/dumb…"  
 31 minutes ago      Up 2 seconds        0.0.0.0:9892->9872/tcp, 
0.0.0.0:9882->9874/tcp   ozone-om-ha-s3_om2_1
   $ docker stop 81e613bda640
   81e613bda640
   
   bash-4.2$ ozone admin om getserviceroles -id=id1
   proxyom1 : FOLLOWER
   om2 : FOLLOWER
   om3 : LEADER
   ```
   
   
   

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