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Posted to issues@hbase.apache.org by "Ted Yu (JIRA)" <ji...@apache.org> on 2015/08/22 23:24:45 UTC
[jira] [Updated] (HBASE-14293) TestStochasticBalancerJmxMetrics
intermittently fails due to port conflict
[ https://issues.apache.org/jira/browse/HBASE-14293?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Ted Yu updated HBASE-14293:
---------------------------
Attachment: 14293-v1.txt
In patch v1, the next port to be tried is randomized.
Mini cluster is shutdown prior to retry in order to avoid IllegalStateException.
> TestStochasticBalancerJmxMetrics intermittently fails due to port conflict
> --------------------------------------------------------------------------
>
> Key: HBASE-14293
> URL: https://issues.apache.org/jira/browse/HBASE-14293
> Project: HBase
> Issue Type: Test
> Reporter: Ted Yu
> Assignee: Ted Yu
> Priority: Minor
> Fix For: 2.0.0
>
> Attachments: 14293-v1.txt
>
>
> From https://builds.apache.org/job/HBase-TRUNK/6748/testReport/junit/org.apache.hadoop.hbase/TestStochasticBalancerJmxMetrics/testJmxMetrics_EnsembleMode/ :
> {code}
> 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)
> {code}
> 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.
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