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From Adeel Akbar <adeel.ak...@panasiangroup.com>
Subject snapshot issue
Date Wed, 11 Jul 2012 09:38:28 GMT
Hi,

I am trying to taking snapshot of my data but faced following error. 
Please help me to resolve this issue.

[root@cassandra1 bin]# ./nodetool -h localhost snapshot 20120711
Exception in thread "main" java.io.IOError: java.io.IOException: Cannot 
run program "ln": java.io.IOException: error=12, Cannot allocate memory
         at 
org.apache.cassandra.db.ColumnFamilyStore.snapshotWithoutFlush(ColumnFamilyStore.java:1660)
         at 
org.apache.cassandra.db.ColumnFamilyStore.snapshot(ColumnFamilyStore.java:1686)
         at org.apache.cassandra.db.Table.snapshot(Table.java:198)
         at 
org.apache.cassandra.service.StorageService.takeSnapshot(StorageService.java:1393)
         at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
         at 
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
         at 
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
         at java.lang.reflect.Method.invoke(Method.java:616)
         at 
com.sun.jmx.mbeanserver.StandardMBeanIntrospector.invokeM2(StandardMBeanIntrospector.java:111)
         at 
com.sun.jmx.mbeanserver.StandardMBeanIntrospector.invokeM2(StandardMBeanIntrospector.java:45)
         at 
com.sun.jmx.mbeanserver.MBeanIntrospector.invokeM(MBeanIntrospector.java:226)
         at 
com.sun.jmx.mbeanserver.PerInterface.invoke(PerInterface.java:138)
         at 
com.sun.jmx.mbeanserver.MBeanSupport.invoke(MBeanSupport.java:251)
         at 
com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.invoke(DefaultMBeanServerInterceptor.java:857)
         at 
com.sun.jmx.mbeanserver.JmxMBeanServer.invoke(JmxMBeanServer.java:795)
         at 
javax.management.remote.rmi.RMIConnectionImpl.doOperation(RMIConnectionImpl.java:1450)
         at 
javax.management.remote.rmi.RMIConnectionImpl.access$200(RMIConnectionImpl.java:90)
         at 
javax.management.remote.rmi.RMIConnectionImpl$PrivilegedOperation.run(RMIConnectionImpl.java:1285)
         at 
javax.management.remote.rmi.RMIConnectionImpl.doPrivilegedOperation(RMIConnectionImpl.java:1383)
         at 
javax.management.remote.rmi.RMIConnectionImpl.invoke(RMIConnectionImpl.java:807)
         at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
         at 
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
         at 
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
         at java.lang.reflect.Method.invoke(Method.java:616)
         at 
sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:322)
         at sun.rmi.transport.Transport$1.run(Transport.java:177)
         at java.security.AccessController.doPrivileged(Native Method)
         at sun.rmi.transport.Transport.serviceCall(Transport.java:173)
         at 
sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:553)
         at 
sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run0(TCPTransport.java:808)
         at 
sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:667)
         at 
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)
         at 
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
         at java.lang.Thread.run(Thread.java:636)
Caused by: java.io.IOException: Cannot run program "ln": 
java.io.IOException: error=12, Cannot allocate memory
         at java.lang.ProcessBuilder.start(ProcessBuilder.java:475)
         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:1653)
         ... 33 more
Caused by: java.io.IOException: java.io.IOException: error=12, Cannot 
allocate memory
         at java.lang.UNIXProcess.<init>(UNIXProcess.java:164)
         at java.lang.ProcessImpl.start(ProcessImpl.java:81)
         at java.lang.ProcessBuilder.start(ProcessBuilder.java:468)
         ... 37 more

-- 


Thanks & Regards

*Adeel**Akbar*




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