Dne 21. 01. 20 v 21:12 Stefan Kooman napsal(a):
> Quoting Martin Mlynář (nexus+c...@smoula.net):
>
>> Do you think this could help? OSD does not even start, I'm getting a little
>> lost how flushing caches could help.
> I might have mis-understood. I though the OSDs crashed when you set the
> config setting.
>
>> According to trace I suspect something around processing config values.
> I've just set the same config setting on a test cluster and restarted an
> OSD without problem. So, not sure what is going on there.
>
> Gr. Stefan
I've compiled ceph-osd with debug symbols and got better backtrace:
-24> 2020-01-22 13:12:53.614 7f83ed064700 4 set_mon_vals no callback set
-23> 2020-01-22 13:12:53.614 7f83ee867700 10 monclient: discarding
stray monitor message auth_reply(proto 2 0 (0) Success) v1
-22> 2020-01-22 13:12:53.614 7f83ed064700 10 set_mon_vals
osd_crush_update_on_start = true
-21> 2020-01-22 13:12:53.614 7f83ed064700 10 set_mon_vals
osd_max_backfills = 64
-20> 2020-01-22 13:12:53.614 7f83ed064700 10 set_mon_vals
osd_memory_target = 2147483648
-19> 2020-01-22 13:12:53.614 7f83ed064700 10 set_mon_vals
osd_recovery_max_active = 40
-18> 2020-01-22 13:12:53.614 7f83ed064700 10 set_mon_vals
osd_recovery_max_single_start = 1000
-17> 2020-01-22 13:12:53.614 7f83ed064700 10 set_mon_vals
osd_recovery_sleep_hdd = 0.000000
-16> 2020-01-22 13:12:53.614 7f83ed064700 10 set_mon_vals
osd_recovery_sleep_hybrid = 0.000000
-15> 2020-01-22 13:12:53.627 7f83f0276c40 0 set uid:gid to
64045:64045 (ceph:ceph)
-14> 2020-01-22 13:12:53.627 7f83f0276c40 0 ceph version 14.2.6
(f0aa067ac7a02ee46ea48aa26c6e298b5ea272e9) nautilus (stable), process
ceph-osd, pid 1111622
-13> 2020-01-22 13:12:53.649 7f83f0276c40 0 pidfile_write: ignore
empty --pid-file
-12> 2020-01-22 13:12:53.657 7f83f0276c40 5 asok(0x5580518fa000)
init /var/run/ceph/ceph-osd.6.asok
-11> 2020-01-22 13:12:53.657 7f83f0276c40 5 asok(0x5580518fa000)
bind_and_listen /var/run/ceph/ceph-osd.6.asok
-10> 2020-01-22 13:12:53.657 7f83f0276c40 5 asok(0x5580518fa000)
register_command 0 hook 0x558051872fc0
-9> 2020-01-22 13:12:53.657 7f83f0276c40 5 asok(0x5580518fa000)
register_command version hook 0x558051872fc0
-8> 2020-01-22 13:12:53.657 7f83f0276c40 5 asok(0x5580518fa000)
register_command git_version hook 0x558051872fc0
-7> 2020-01-22 13:12:53.657 7f83f0276c40 5 asok(0x5580518fa000)
register_command help hook 0x558051874220
-6> 2020-01-22 13:12:53.657 7f83f0276c40 5 asok(0x5580518fa000)
register_command get_command_descriptions hook 0x558051874260
-5> 2020-01-22 13:12:53.657 7f83ed865700 5 asok(0x5580518fa000)
entry start
-4> 2020-01-22 13:12:53.670 7f83f0276c40 5 object store type is
bluestore
-3> 2020-01-22 13:12:53.675 7f83f0276c40 1 bdev create path
/var/lib/ceph/osd/ceph-6/block type kernel
-2> 2020-01-22 13:12:53.675 7f83f0276c40 1 bdev(0x5580518f3f80
/var/lib/ceph/osd/ceph-6/block) open path /var/lib/ceph/osd/ceph-6/block
-1> 2020-01-22 13:12:53.675 7f83f0276c40 1 bdev(0x5580518f3f80
/var/lib/ceph/osd/ceph-6/block) open size 3000588304384 (0x2baa1000000,
2.7 TiB) block_size 4096 (4 KiB) rotational discard not supported
0> 2020-01-22 13:12:53.714 7f83f0276c40 -1 *** Caught signal
(Aborted) **
in thread 7f83f0276c40 thread_name:ceph-osd
ceph version 14.2.6 (f0aa067ac7a02ee46ea48aa26c6e298b5ea272e9) nautilus
(stable)
1: (()+0x2c19654) [0x558045ec6654]
2: (()+0x12730) [0x7f83f0d1f730]
3: (gsignal()+0x10b) [0x7f83f08027bb]
4: (abort()+0x121) [0x7f83f07ed535]
5: (()+0x8c983) [0x7f83f0bb5983]
6: (()+0x928c6) [0x7f83f0bbb8c6]
7: (()+0x92901) [0x7f83f0bbb901]
8: (()+0x92b34) [0x7f83f0bbbb34]
* 9: (void boost::throw_exception<boost::bad_get>(boost::bad_get
const&)+0x7b) [0x5580454d5430]*
* 10: (Option::size_t&& boost::relaxed_get<Option::size_t, boost::blank,
std::__cxx11::basic_string<char, std::char_traits<char>,
std::allocator<char> >, unsigned long, long, double, bool,
entity_addr_t, entity_addrvec_t, std::chrono::duration<long,
std::ratio<1l, 1l> >, Option::size_t,
uuid_d>(boost::variant<boost::blank, std::__cxx11::basic_string<char,
std::char_traits<char>, std::allocator<char> >, unsigned long, long,
double, bool, entity_addr_t, entity_addrvec_t,
std::chrono::duration<long, std::ratio<1l, 1l> >, Option::size_t,
uuid_d>&&)+0x5b) [0x5580454d6223]*
11: (Option::size_t&& boost::strict_get<Option::size_t, boost::blank,
std::__cxx11::basic_string<char, std::char_traits<char>,
std::allocator<char> >, unsigned long, long, double, bool,
entity_addr_t, entity_addrvec_t, std::chrono::duration<long,
std::ratio<1l, 1l> >, Option::size_t,
uuid_d>(boost::variant<boost::blank, std::__cxx11::basic_string<char,
std::char_traits<char>, std::allocator<char> >, unsigned long, long,
double, bool, entity_addr_t, entity_addrvec_t,
std::chrono::duration<long, std::ratio<1l, 1l> >, Option::size_t,
uuid_d>&&)+0x20) [0x5580454d4a39]
12: (Option::size_t&& boost::get<Option::size_t, boost::blank,
std::__cxx11::basic_string<char, std::char_traits<char>,
std::allocator<char> >, unsigned long, long, double, bool,
entity_addr_t, entity_addrvec_t, std::chrono::duration<long,
std::ratio<1l, 1l> >, Option::size_t,
uuid_d>(boost::variant<boost::blank, std::__cxx11::basic_string<char,
std::char_traits<char>, std::allocator<char> >, unsigned long, long,
double, bool, entity_addr_t, entity_addrvec_t,
std::chrono::duration<long, std::ratio<1l, 1l> >, Option::size_t,
uuid_d>&&)+0x20) [0x5580454d1ed7]
13: (Option::size_t const
md_config_t::get_val<Option::size_t>(ConfigValues const&,
std::__cxx11::basic_string<char, std::char_traits<char>,
std::allocator<char> > const&) const+0x48) [0x5580454ce882]
14: (Option::size_t const
ConfigProxy::get_val<Option::size_t>(std::__cxx11::basic_string<char,
std::char_traits<char>, std::allocator<char> > const&) const+0x58)
[0x5580454cb9b8]
15: (BlueStore::_set_cache_sizes()+0x159) [0x558045ce2213]
16: (BlueStore::_open_bdev(bool)+0x301) [0x558045ce6be3]
17: (BlueStore::get_devices(std::set<std::__cxx11::basic_string<char,
std::char_traits<char>, std::allocator<char> >,
std::less<std::__cxx11::basic_string<char, std::char_traits<char>,
std::allocator<char> > >,
std::allocator<std::__cxx11::basic_string<char, std::char_traits<char>,
std::allocator<char> > > >*)+0xf9) [0x558045d0f16d]
18: (BlueStore::get_numa_node(int*, std::set<int, std::less<int>,
std::allocator<int> >*, std::set<std::__cxx11::basic_string<char,
std::char_traits<char>, std::allocator<char> >,
std::less<std::__cxx11::basic_string<char, std::char_traits<char>,
std::allocator<char> > >,
std::allocator<std::__cxx11::basic_string<char, std::char_traits<char>,
std::allocator<char> > > >*)+0x79) [0x558045d0eb55]
19: (main()+0x3aae) [0x5580454c2460]
20: (__libc_start_main()+0xeb) [0x7f83f07ef09b]
21: (_start()+0x2a) [0x5580454bda2a]
NOTE: a copy of the executable, or `objdump -rdS <executable>` is
needed to interpret this.
And managed some gdb debugging (int BlueStore::_set_cache_sizes()):
(gdb) n
4116 cache_autotune_interval =
(gdb) n
4117
cct->_conf.get_val<double>("bluestore_cache_autotune_interval");
(gdb) p cache_autotune_interval
$3 = 5
(gdb) n
4118 osd_memory_target =
cct->_conf.get_val<Option::size_t>("osd_memory_target");
(gdb) s
std::__cxx11::basic_string<char, std::char_traits<char>,
std::allocator<char> >::basic_string<std::allocator<char> >
(this=0x7fffffffc140, __s=0x555558d26c2f "osd_memory_target", __a=...)
at /usr/include/c++/8/bits/basic_string.h:515
515 : _M_dataplus(_M_local_data(), __a)
(gdb) n
516 { _M_construct(__s, __s ? __s + traits_type::length(__s) :
__s+npos); }
(gdb)
terminate called after throwing an instance of
'boost::exception_detail::clone_impl<boost::exception_detail::error_info_injector<boost::bad_get>
>'
what(): boost::bad_get: failed value get using boost::get
But there I'm stuck. GDBing c++ code is a really dark sorcery for me.
Other get_vals look fine, maybe get_val<*Option::size_t*> is the
problem? It looks like trouble outside of ceph - what system are you
testing on? This is debian with official debian build from
buster-backports. Maybe some of debian's patches?
>
>
--
Martin Mlynář
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