What are your ulimit settings? You could be hitting the max process count.
On 9/12/2014 9:06 AM, Christian Eichelmann wrote:
Hi Ceph-Users,
I have absolutely no idea what is going on on my systems...
Hardware:
45 x 4TB Harddisks
2 x 6 Core CPUs
256GB Memory
When initializing all disks and join them to the cluster, after
approximately 30 OSDs, other osds are crashing. When I try to start them
again I see different kinds of errors. For example:
Starting Ceph osd.316 on ceph-osd-bs04...already running
=== osd.317 ===
Traceback (most recent call last):
File "/usr/bin/ceph", line 830, in <module>
sys.exit(main())
File "/usr/bin/ceph", line 773, in main
sigdict, inbuf, verbose)
File "/usr/bin/ceph", line 420, in new_style_command
inbuf=inbuf)
File "/usr/lib/python2.7/dist-packages/ceph_argparse.py", line 1112,
in json_command
raise RuntimeError('"{0}": exception {1}'.format(cmd, e))
NameError: global name 'cmd' is not defined
Exception thread.error: error("can't start new thread",) in <bound
method Rados.__del__ of <rados.Rados object
at 0x29ee410>> ignored
or:
/etc/init.d/ceph: 190: /etc/init.d/ceph: Cannot fork
/etc/init.d/ceph: 191: /etc/init.d/ceph: Cannot fork
/etc/init.d/ceph: 192: /etc/init.d/ceph: Cannot fork
or:
/usr/bin/ceph-crush-location: 72: /usr/bin/ceph-crush-location: Cannot fork
/usr/bin/ceph-crush-location: 79: /usr/bin/ceph-crush-location: Cannot fork
Thread::try_create(): pthread_create failed with error
11common/Thread.cc: In function 'void Thread::create(size_t)' thread
7fcf768c9760 time 2014-09-12 15:00:28.284735
common/Thread.cc: 110: FAILED assert(ret == 0)
ceph version 0.80.5 (38b73c67d375a2552d8ed67843c8a65c2c0feba6)
1: /usr/bin/ceph-conf() [0x51de8f]
2: (CephContext::CephContext(unsigned int)+0xb1) [0x520fe1]
3: (common_preinit(CephInitParameters const&, code_environment_t,
int)+0x48) [0x52eb78]
4: (global_pre_init(std::vector<char const*, std::allocator<char
const*> >*, std::vector<char const*, std::allocator<char const*> >&,
unsigned int, code_environment_t, int)+0x8d) [0x518d0d]
5: (main()+0x17a) [0x514f6a]
6: (__libc_start_main()+0xfd) [0x7fcf7522ceed]
7: /usr/bin/ceph-conf() [0x5168d1]
NOTE: a copy of the executable, or `objdump -rdS <executable>` is
needed to interpret this.
terminate called after throwing an instance of 'ceph::FailedAssertion'
Aborted (core dumped)
/etc/init.d/ceph: 340: /etc/init.d/ceph: Cannot fork
/etc/init.d/ceph: 1: /etc/init.d/ceph: Cannot fork
Traceback (most recent call last):
File "/usr/bin/ceph", line 830, in <module>
sys.exit(main())
File "/usr/bin/ceph", line 590, in main
conffile=conffile)
File "/usr/lib/python2.7/dist-packages/rados.py", line 198, in __init__
librados_path = find_library('rados')
File "/usr/lib/python2.7/ctypes/util.py", line 224, in find_library
return _findSoname_ldconfig(name) or _get_soname(_findLib_gcc(name))
File "/usr/lib/python2.7/ctypes/util.py", line 213, in
_findSoname_ldconfig
f = os.popen('/sbin/ldconfig -p 2>/dev/null')
OSError: [Errno 12] Cannot allocate memory
But anyways, when I look at the memory consumption of the system:
# free -m
total used free shared buffers cached
Mem: 258450 25841 232609 0 18 15506
-/+ buffers/cache: 10315 248135
Swap: 3811 0 3811
There are more then 230GB of memory available! What is going on there?
System:
Linux ceph-osd-bs04 3.14-0.bpo.1-amd64 #1 SMP Debian 3.14.12-1~bpo70+1
(2014-07-13) x86_64 GNU/Linux
Since this is happening on other Hardware as well, I don't think it's
Hardware related. I have no Idea if this is an OS issue (which would be
seriously strange) or a ceph issue.
Since this is happening only AFTER we upgraded to firefly, I guess it
has something to do with ceph.
ANY idea on what is going on here would be very appreciated!
Regards,
Christian
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