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Posted to issues@hbase.apache.org by "Jean-Daniel Cryans (JIRA)" <ji...@apache.org> on 2013/09/04 00:19:51 UTC
[jira] [Created] (HBASE-9425) Starting a LocalHBaseCluster when
2181 is occupied results in "Too many open files"
Jean-Daniel Cryans created HBASE-9425:
-----------------------------------------
Summary: 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
Fix For: 0.98.0, 0.96.0
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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