Thanks. The problem is intermittent meaning we have separate CA cluster environments: In some cases there is no problem running a snapshot followed by a later clear snapshot (or for that matter physical delete of the snapshot file). When I stop Cassandra the snapshot file can be deleted. As soon as Cassandra is started the file is locked.
While testing the above I monitored things with sysinternals (Handle, ProcessExplorer, ProcMon). None of them show any open file handles/locks. Am I missing something? I see you suggestion going to 0.6.12. Can the existing cluster (0.6.2) be upgraded node by node? -S On Mon, Mar 21, 2011 at 11:45 PM, aaron morton <aa...@thelastpickle.com>wrote: > There have been some issues to with deleting files on windows, cannot find > a reference to it happening for snapshots. > > If you restart the node can you delete the snapshot? > > Longer term can you upgrade to 0.6.12 and let us know if it happens again? > Any fix will be against that version. > > Hope that helps. > Aaron > > > On 22 Mar 2011, at 08:11, s p wrote: > > > I'm running 3-way CA cluster (0.62 ) on a windows 2008 (jre 1.6.24) > 64-bit. Things are running fine except when trying to remove old snaphsot > files. When running clearsnapshot I get an error msg like below. I can't > remove any daily snapshot files. When trying to delete the actual snapshot > file os cmd file I get "access denied. File used by another process". Seems > CA or JRE is sitting on file? > > > > Feedback much appreciated. > > > > > > C:\Cassandra\ > > Exception in thread "main" java.io.IOException: Failed to delete > c:\cassandra\da > > > ta\data\ks_SnapshotTest\snapshots\1300731301822-ks_SnapshotTest\cf_SnapshotTest-135-Data.db > > at > org.apache.cassandra.io.util.FileUtils.deleteWithConfirm(FileUtils.ja > > va:47) > > at > org.apache.cassandra.io.util.FileUtils.deleteDir(FileUtils.java:189) > > at > org.apache.cassandra.io.util.FileUtils.deleteDir(FileUtils.java:184) > > at > org.apache.cassandra.io.util.FileUtils.deleteDir(FileUtils.java:184) > > at org.apache.cassandra.db.Table.clearSnapshot(Table.java:274) > > at > org.apache.cassandra.service.StorageService.clearSnapshot(StorageServ > > ice.java:1023) > > at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) > > at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) > > at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown > Source) > > at java.lang.reflect.Method.invoke(Unknown Source) > > at > com.sun.jmx.mbeanserver.StandardMBeanIntrospector.invokeM2(Unknown So > > urce) > > at > com.sun.jmx.mbeanserver.StandardMBeanIntrospector.invokeM2(Unknown So > > urce) > > at com.sun.jmx.mbeanserver.MBeanIntrospector.invokeM(Unknown > Source) > > at com.sun.jmx.mbeanserver.PerInterface.invoke(Unknown Source) > > at com.sun.jmx.mbeanserver.MBeanSupport.invoke(Unknown Source) > > at > com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.invoke(Unknown > > Source) > > at com.sun.jmx.mbeanserver.JmxMBeanServer.invoke(Unknown Source) > > at > javax.management.remote.rmi.RMIConnectionImpl.doOperation(Unknown Sou > > rce) > > at > javax.management.remote.rmi.RMIConnectionImpl.access$200(Unknown Sour > > ce) > > at > javax.management.remote.rmi.RMIConnectionImpl$PrivilegedOperation.run > > (Unknown Source) > > at > javax.management.remote.rmi.RMIConnectionImpl.doPrivilegedOperation(U > > nknown Source) > > at javax.management.remote.rmi.RMIConnectionImpl.invoke(Unknown > Source) > > at sun.reflect.GeneratedMethodAccessor17.invoke(Unknown Source) > > at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown > Source) > > at java.lang.reflect.Method.invoke(Unknown Source) > > at sun.rmi.server.UnicastServerRef.dispatch(Unknown Source) > > at sun.rmi.transport.Transport$1.run(Unknown Source) > > at java.security.AccessController.doPrivileged(Native Method) > > at sun.rmi.transport.Transport.serviceCall(Unknown Source) > > at sun.rmi.transport.tcp.TCPTransport.handleMessages(Unknown > Source) > > at > sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run0(Unknown Sou > > rce) > > at > sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(Unknown Sour > > ce) > > at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(Unknown > Source > > ) > > at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown > Source) > > at java.lang.Thread.run(Unknown Source) > > > > C:\Cassandra\bin> > > > > > > > > > > > >
