org.apache.hadoop.hbase.MasterNotRunningException: Connection refused

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org.apache.hadoop.hbase.MasterNotRunningException: Connection refused
at org.apache.hadoop.hbase.client.ConnectionManager$HConnectionImplementation$StubMaker.makeStub(
at org.apache.hadoop.hbase.client.ConnectionManager$HConnectionImplementation$MasterServiceStubMaker.makeStub(
at org.apache.hadoop.hbase.client.ConnectionManager$HConnectionImplementation.getKeepAliveMasterService(
at org.apache.hadoop.hbase.client.ConnectionManager$HConnectionImplementation.isMasterRunning(
at hbase.Benchmark.main(

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