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Posted to issues@hbase.apache.org by "Jean-Daniel Cryans (JIRA)" <ji...@apache.org> on 2013/09/13 00:45:15 UTC
[jira] [Work started] (HBASE-9425) Starting a LocalHBaseCluster
when 2181 is occupied results in "Too many open files"
[ https://issues.apache.org/jira/browse/HBASE-9425?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Work on HBASE-9425 started by Jean-Daniel Cryans.
> Starting a LocalHBaseCluster when 2181 is occupied results in "Too many open files"
> -----------------------------------------------------------------------------------
>
> Key: HBASE-9425
> URL: https://issues.apache.org/jira/browse/HBASE-9425
> Project: HBase
> Issue Type: Bug
> Affects Versions: 0.96.0
> Reporter: Jean-Daniel Cryans
> Assignee: Jean-Daniel Cryans
> Fix For: 0.98.0, 0.96.0
>
> Attachments: HBASE-9425.patch
>
>
> This bug was introduced via HBASE-6677 "Random ZooKeeper port in test can overrun max port".
> If 2181 is occupied but you start a LocalHBaseCluster (let's say you untar hbase and start it right away) you'll get this:
> {noformat}
> 13/09/03 10:38:13 INFO server.NIOServerCnxnFactory: binding to port 0.0.0.0/0.0.0.0:2181
> 13/09/03 10:38:13 INFO server.NIOServerCnxnFactory: binding to port 0.0.0.0/0.0.0.0:2181
> 13/09/03 10:38:13 INFO server.NIOServerCnxnFactory: binding to port 0.0.0.0/0.0.0.0:2181
> ...
> 13/09/03 10:38:44 INFO server.NIOServerCnxnFactory: binding to port 0.0.0.0/0.0.0.0:2181
> 13/09/03 10:38:44 INFO server.NIOServerCnxnFactory: binding to port 0.0.0.0/0.0.0.0:2181
> 13/09/03 10:38:44 ERROR master.HMasterCommandLine: Master exiting
> java.io.IOException: Too many open files
> at sun.nio.ch.EPollArrayWrapper.epollCreate(Native Method)
> at sun.nio.ch.EPollArrayWrapper.<init>(EPollArrayWrapper.java:87)
> at sun.nio.ch.EPollSelectorImpl.<init>(EPollSelectorImpl.java:68)
> at sun.nio.ch.EPollSelectorProvider.openSelector(EPollSelectorProvider.java:36)
> at java.nio.channels.Selector.open(Selector.java:227)
> at org.apache.zookeeper.server.NIOServerCnxnFactory.<init>(NIOServerCnxnFactory.java:61)
> at org.apache.hadoop.hbase.zookeeper.MiniZooKeeperCluster.startup(MiniZooKeeperCluster.java:165)
> at org.apache.hadoop.hbase.zookeeper.MiniZooKeeperCluster.startup(MiniZooKeeperCluster.java:131)
> at org.apache.hadoop.hbase.master.HMasterCommandLine.startMaster(HMasterCommandLine.java:164)
> at org.apache.hadoop.hbase.master.HMasterCommandLine.run(HMasterCommandLine.java:134)
> at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:70)
> at org.apache.hadoop.hbase.util.ServerCommandLine.doMain(ServerCommandLine.java:78)
> at org.apache.hadoop.hbase.master.HMaster.main(HMaster.java:2812)
> {noformat}
> The reason is that MiniZookeeperCluster.selectClientPort returns 2181 if defaultClientPort is greater than 0, which it always is when starting a LocalHBaseCluster.
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