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From "Luis Eduardo Villares Matta (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CASSANDRA-2989) Error creating snaphot
Date Wed, 03 Aug 2011 14:02:27 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-2989?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13078755#comment-13078755
] 

Luis Eduardo Villares Matta commented on CASSANDRA-2989:
--------------------------------------------------------

Thanks.
JNA IS installed, shouldn't the "ulimit -n XXX" be part of the /etc/init.d/cassandra.
(it seams that /etc/security/limits.d/cassandra.conf did not work, I believe that it is related
to PAM in ubuntu)

> Error creating snaphot
> ----------------------
>
>                 Key: CASSANDRA-2989
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-2989
>             Project: Cassandra
>          Issue Type: Bug
>          Components: Tools
>    Affects Versions: 0.8.1
>         Environment: Ubuntu, from apache repository 08x.
>            Reporter: Luis Eduardo Villares Matta
>
> (Note I upgraded from 0.7.x to 0.8.1 and I am having problems updating the schemas, running
nodetool compac. But now
> I had this error on production so I am posting it)
> Exception in thread "main" java.io.IOError: java.io.IOException: Cannot run program "ln":
java.io.IOException: error=24, Too many open files
> 	at org.apache.cassandra.db.ColumnFamilyStore.snapshotWithoutFlush(ColumnFamilyStore.java:1700)
> 	at org.apache.cassandra.db.ColumnFamilyStore.snapshot(ColumnFamilyStore.java:1726)
> 	at org.apache.cassandra.db.Table.snapshot(Table.java:198)
> 	at org.apache.cassandra.service.StorageService.takeSnapshot(StorageService.java:1409)
> 	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> 	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
> 	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
> 	at java.lang.reflect.Method.invoke(Method.java:597)
> 	at com.sun.jmx.mbeanserver.StandardMBeanIntrospector.invokeM2(StandardMBeanIntrospector.java:93)
> 	at com.sun.jmx.mbeanserver.StandardMBeanIntrospector.invokeM2(StandardMBeanIntrospector.java:27)
> 	at com.sun.jmx.mbeanserver.MBeanIntrospector.invokeM(MBeanIntrospector.java:208)
> 	at com.sun.jmx.mbeanserver.PerInterface.invoke(PerInterface.java:120)
> 	at com.sun.jmx.mbeanserver.MBeanSupport.invoke(MBeanSupport.java:262)
> 	at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.invoke(DefaultMBeanServerInterceptor.java:836)
> 	at com.sun.jmx.mbeanserver.JmxMBeanServer.invoke(JmxMBeanServer.java:761)
> 	at javax.management.remote.rmi.RMIConnectionImpl.doOperation(RMIConnectionImpl.java:1427)
> 	at javax.management.remote.rmi.RMIConnectionImpl.access$200(RMIConnectionImpl.java:72)
> 	at javax.management.remote.rmi.RMIConnectionImpl$PrivilegedOperation.run(RMIConnectionImpl.java:1265)
> 	at javax.management.remote.rmi.RMIConnectionImpl.doPrivilegedOperation(RMIConnectionImpl.java:1360)
> 	at javax.management.remote.rmi.RMIConnectionImpl.invoke(RMIConnectionImpl.java:788)
> 	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> 	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
> 	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
> 	at java.lang.reflect.Method.invoke(Method.java:597)
> 	at sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:305)
> 	at sun.rmi.transport.Transport$1.run(Transport.java:159)
> 	at java.security.AccessController.doPrivileged(Native Method)
> 	at sun.rmi.transport.Transport.serviceCall(Transport.java:155)
> 	at sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:535)
> 	at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run0(TCPTransport.java:790)
> 	at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:649)
> 	at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
> 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
> 	at java.lang.Thread.run(Thread.java:662)
> Caused by: java.io.IOException: Cannot run program "ln": java.io.IOException: error=24,
Too many open files
> 	at java.lang.ProcessBuilder.start(ProcessBuilder.java:460)
> 	at org.apache.cassandra.utils.CLibrary.createHardLinkWithExec(CLibrary.java:181)
> 	at org.apache.cassandra.utils.CLibrary.createHardLink(CLibrary.java:147)
> 	at org.apache.cassandra.io.sstable.SSTableReader.createLinks(SSTableReader.java:730)
> 	at org.apache.cassandra.db.ColumnFamilyStore.snapshotWithoutFlush(ColumnFamilyStore.java:1693)
> 	... 33 more
> Caused by: java.io.IOException: java.io.IOException: error=24, Too many open files
> 	at java.lang.UNIXProcess.<init>(UNIXProcess.java:148)
> 	at java.lang.ProcessImpl.start(ProcessImpl.java:65)
> 	at java.lang.ProcessBuilder.start(ProcessBuilder.java:453)
> 	... 37 more

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