Description
2015-08-22 20:46:07,939 ERROR [M:0;asf900:59022] coprocessor.CoprocessorHost(518): The coprocessor org.apache.hadoop.hbase.JMXListener threw java.rmi.server.ExportException: Port already in use: 61120; nested exception is: java.net.BindException: Address already in use java.rmi.server.ExportException: Port already in use: 61120; nested exception is: java.net.BindException: Address already in use at sun.rmi.transport.tcp.TCPTransport.listen(TCPTransport.java:329) at sun.rmi.transport.tcp.TCPTransport.exportObject(TCPTransport.java:237) at sun.rmi.transport.tcp.TCPEndpoint.exportObject(TCPEndpoint.java:411) ... 2015-08-22 20:49:41,755 DEBUG [main] hbase.TestStochasticBalancerJmxMetrics(93): Encountered exception when starting cluster. Trying port 61122 java.lang.IllegalStateException: A mini-cluster is already running at org.apache.hadoop.hbase.HBaseTestingUtility.startMiniCluster(HBaseTestingUtility.java:981) at org.apache.hadoop.hbase.HBaseTestingUtility.startMiniCluster(HBaseTestingUtility.java:872) at org.apache.hadoop.hbase.HBaseTestingUtility.startMiniCluster(HBaseTestingUtility.java:866) at org.apache.hadoop.hbase.HBaseTestingUtility.startMiniCluster(HBaseTestingUtility.java:810) at org.apache.hadoop.hbase.TestStochasticBalancerJmxMetrics.setupBeforeClass(TestStochasticBalancerJmxMetrics.java:89)
When port conflict is detected, we try the next port.
However, HTU#miniClusterRunning is true by this moment, leading to the second exception shown above.