Can you send us the stack trace which you can find in the hs_err_pid*.log?
is the system memory all used up (free)? any errors in the logs just before
the crash?
Regards,
/VJ
On Mon, Mar 26, 2012 at 12:35 AM, Maciej Miklas
mac.mik...@googlemail.comwrote:
I have row cache - it's about 20GB big in this case.
The problem can be reproduced with our load test - we are using 20 reader
threads on single Cassandra node.
I will retest it with Java 6 - still it looks to me like JNA problem and
JDK in this case should not matter, but we will see.
On Thu, Mar 22, 2012 at 8:27 PM, Benoit Perroud ben...@noisette.chwrote:
Sounds like a race condition in the off heap caching while calling
Unsafe.free().
Do you use cache ? What is your use case when you encounter this error
? Are you able to reproduce it ?
2012/3/22 Maciej Miklas mac.mik...@googlemail.com:
Hi *,
My Cassandra installation runs on flowing system:
Linux with Kernel 2.6.32.22
jna-3.3.0
Java 1.7.0-b147
Sometimes we are getting following error:
*** glibc detected *** /var/opt/java1.7/bin/java: free(): invalid
pointer:
0x7f66088a6000 ***
=== Backtrace: =
/lib/libc.so.6[0x7f661d7099a8]
/lib/libc.so.6(cfree+0x76)[0x7f661d70bab6]
/lib64/ld-linux-x86-64.so.2(_dl_deallocate_tls+0x59)[0x7f661e02f349]
/lib/libpthread.so.0[0x7f661de09237]
/lib/libpthread.so.0[0x7f661de0931a]
/lib/libpthread.so.0[0x7f661de0a0bd]
/lib/libc.so.6(clone+0x6d)[0x7f661d76564d]
=== Memory map:
0040-00401000 r-xp 68:07 537448203
/var/opt/jdk1.7.0/bin/java
0060-00601000 rw-p 68:07 537448203
/var/opt/jdk1.7.0/bin/java
01bae000-01fd rw-p 00:00 0
[heap]
01fd-15798000 rw-p 00:00 0
[heap]
40002000-40005000 ---p 00:00 0
40005000-40023000 rw-p 00:00 0
4003-40033000 ---p 00:00 0
40033000-40051000 rw-p 00:00 0
Does anyone have similar problems? or maybe some hints?
Thanks,
Maciej
--
sent from my Nokia 3210
