There is no antivirus program or similar running on that machine I
guess?

That could definitely lock the file if Cassandra is creating the .tmp
file and then fairly shortly after tries to rename it.

/Daniel

On Mon, 2011-02-21 at 11:34 +0000, Aaron Morton wrote:
> The code creates a new .tmp file in the saved_caches directory and
> then renames it to a non .tmp file name, so there is nothing else with
> a handle open. The rename is to an existing file though. 
> 
> 
> Ruslan can you please raise a bug against 0.7.2 for this and include
> the platform. 
> 
> 
> Thanks
> Aaron
> 
> 
> On 22 Feb, 2011,at 12:22 AM, Norman Maurer <nor...@apache.org> wrote:
> 
> 
> > The "problem" on windows is that it is a bit more worried about
> > rename
> > a file if the handle is still open.
> > 
> > So maybe some stream not closed on the file.
> > 
> > Bye,
> > Norman
> > 
> > 
> > 2011/2/21 Aaron Morton <aa...@thelastpickle.com>:
> > > From th F:/ I assume you are on Windows ? What version?
> > > Just did a quick test on Ubuntu 10.0.4 and it works, but the
> > File.renameTo()
> > > function used has different behavior depending on the host OS.
> > There may be
> > > some issues on
> > >
> > Window 
> > http://stackoverflow.com/questions/1000183/reliable-file-renameto-alternative-on-windows
> > > Aaron
> > >
> > >
> > > On 21 Feb, 2011,at 11:43 PM, ruslan usifov
> > <ruslan.usi...@gmail.com> wrote:
> > >
> > > I launch clean cassandra 7.2 instalation, and after few days i
> > look at
> > > system.log follow error (more then 10 time):
> > >
> > >
> > > ERROR [CompactionExecutor:1] 2011-02-19 02:56:17,965
> > > AbstractCassandraDaemon.java (line 114) Fatal exception in thread
> > > Thread[CompactionExecutor:1,1,main]
> > > java.lang.RuntimeException: java.io.IOException: Unable to rename
> > cache to
> > > F:\Cassandra\7.2\saved_caches\system-LocationInfo-KeyCache
> > >     at
> > >
> > org.apache.cassandra.utils.WrappedRunnablerun(WrappedRunnable.java:34)
> > >     at
> > > java.util.concurrent.Executors
> > $RunnableAdapter.call(Executors.java:441)
> > >     at java.util.concurrent.FutureTask
> > $Sync.innerRun(FutureTask.java:303)
> > >     at java.util.concurrent.FutureTask.run(FutureTask.java:138)
> > >     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: Unable to rename cache to
> > > F:\Cassandra\7.2\saved_caches\system-LocationInfo-KeyCache
> > >     at
> > >
> > org.apache.cassandra.io.sstable.CacheWriter.saveCache(CacheWriter.java:85)
> > >     at
> > > org.apache.cassandra.db.CompactionManager
> > $9.runMayThrow(CompactionManager.java:746)
> > >     at
> > >
> > org.apache.cassandra.utils.WrappedRunnable.run(WrappedRunnable.java:30)
> > >     ... 6 more
> > >
> > >
> > 

-- 


Daniel Josefsson

Software Engineer

Shazam Entertainment Ltd     
26-28 Hammersmith Grove, London W6 7HA
w:         www.shazam.com 

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