Error: Region is not online

[蒋慧明]

Dear   When I tried to run a job, it report error like this:    org.apache.kylin.engine.mr.exception.HadoopShellException: java.lang.RuntimeException: org.apache.hadoop.hbase.client.RetriesExhaustedException: Failed after attempts=1, exceptions: Thu May 23 14:21:30 GMT+08:00 2019, RpcRetryingCaller{globalStartTime=1558592490643, pause=100, retries=1}, org.apache.hadoop.hbase.NotServingRegionException: org.apache.hadoop.hbase.NotServingRegionException: Region R1 is not online on RS1,16020 at org.apache.hadoop.hbase.regionserver.HRegionServer.getRegionByEncodedName(HRegionServer.java:3008) at org.apache.hadoop.hbase.regionserver.RSRpcServices.getRegion(RSRpcServices.java:1144) at org.apache.hadoop.hbase.regionserver.RSRpcServices.newRegionScanner(RSRpcServices.java:2476) at org.apache.hadoop.hbase.regionserver.RSRpcServices.scan(RSRpcServices.java:2757) at org.apache.hadoop.hbase.protobuf.generated.ClientProtos$ClientService$2.callBlockingMethod(ClientProtos.java:34950)   From HBASE Webui, region R1 is actually located at RS2 (16030).   Anyone know about： 1. Why Kylin request with the wrong region server? How to fixed it? 2. Why the requested port 16020 is different with Hbase port 16030? Is it normal?   Thanks a lot!