Hi,
this seems like a dangerous operation to me, I tried the same on two
different virtual clusters, Reef and Pacific (all upgraded from
previous releases). In Reef the reshard fails alltogether and the OSD
fails to start, I had to recreate it. In Pacific the reshard reports a
successful operation, but the OSD fails to start as well, with the
same stack trace as yours. I wasn't aware of this resharding operation
yet, but is it really safe? I don't have an idea how to fix, I just
recreated the OSDs.
Zitat von Denis Polom <denispolom@xxxxxxxxx>:
Hi
we upgraded our Ceph cluster from latest Octopus to Pacific 16.2.14
and then we followed the docs
(https://docs.ceph.com/en/latest/rados/configuration/bluestore-config-ref/#rocksdb-sharding <https://docs.ceph.com/en/latest/rados/configuration/bluestore-config-ref/#rocksdb-sharding>) to reshard RocksDB on our
OSDs.
Despite resharding reports operation as successful, OSD fails to start.
# ceph-bluestore-tool --path /var/lib/ceph/osd/ceph-5/
--sharding="m(3) p(3,0-12) o(3,0-13)=block_cache={type=binned_lru} l
p" reshard
reshard success
Oct 30 12:44:17 octopus2 ceph-osd[4521]:
/build/ceph-16.2.14/src/kv/RocksDBStore.cc: 1223: FAILED
ceph_assert(recreate_mode)
Oct 30 12:44:17 octopus2 ceph-osd[4521]: ceph version 16.2.14
(238ba602515df21ea7ffc75c88db29f9e5ef12c9) pacific (stable)
Oct 30 12:44:17 octopus2 ceph-osd[4521]: 1:
(ceph::__ceph_assert_fail(char const*, char const*, int, char
const*)+0x14b) [0x564047cb92b2]
Oct 30 12:44:17 octopus2 ceph-osd[4521]: 2:
/usr/bin/ceph-osd(+0xaa948a) [0x564047cb948a]
Oct 30 12:44:17 octopus2 ceph-osd[4521]: 3:
(RocksDBStore::do_open(std::ostream&, bool, bool,
std::__cxx11::basic_string<char, std::char_traits<char>,
std::allocator<char> > const&)+0x1609) [0x564048794829]
Oct 30 12:44:17 octopus2 ceph-osd[4521]: 4:
(BlueStore::_open_db(bool, bool, bool)+0x601) [0x564048240421]
Oct 30 12:44:17 octopus2 ceph-osd[4521]: 5:
(BlueStore::_open_db_and_around(bool, bool)+0x26b) [0x5640482a5f8b]
Oct 30 12:44:17 octopus2 ceph-osd[4521]: 6:
(BlueStore::_mount()+0x9c) [0x5640482a896c]
Oct 30 12:44:17 octopus2 ceph-osd[4521]: 7: (OSD::init()+0x38a)
[0x564047daacea]
Oct 30 12:44:17 octopus2 ceph-osd[4521]: 8: main()
Oct 30 12:44:17 octopus2 ceph-osd[4521]: 9: __libc_start_main()
Oct 30 12:44:17 octopus2 ceph-osd[4521]: 10: _start()
Oct 30 12:44:17 octopus2 ceph-osd[4521]: 0>
2023-10-30T12:44:17.088+0000 7f4971ed2100 -1 *** Caught signal
(Aborted) **
Oct 30 12:44:17 octopus2 ceph-osd[4521]: in thread 7f4971ed2100
thread_name:ceph-osd
Oct 30 12:44:17 octopus2 ceph-osd[4521]: ceph version 16.2.14
(238ba602515df21ea7ffc75c88db29f9e5ef12c9) pacific (stable)
Oct 30 12:44:17 octopus2 ceph-osd[4521]: 1:
/lib/x86_64-linux-gnu/libpthread.so.0(+0x12730) [0x7f4972921730]
Oct 30 12:44:17 octopus2 ceph-osd[4521]: 2: gsignal()
Oct 30 12:44:17 octopus2 ceph-osd[4521]: 3: abort()
Oct 30 12:44:17 octopus2 ceph-osd[4521]: 4:
(ceph::__ceph_assert_fail(char const*, char const*, int, char
const*)+0x19c) [0x564047cb9303]
Oct 30 12:44:17 octopus2 ceph-osd[4521]: 5:
/usr/bin/ceph-osd(+0xaa948a) [0x564047cb948a]
Oct 30 12:44:17 octopus2 ceph-osd[4521]: 6:
(RocksDBStore::do_open(std::ostream&, bool, bool,
std::__cxx11::basic_string<char, std::char_traits<char>,
std::allocator<char> > const&)+0x1609) [0x564048794829]
Oct 30 12:44:17 octopus2 ceph-osd[4521]: 7:
(BlueStore::_open_db(bool, bool, bool)+0x601) [0x564048240421]
Oct 30 12:44:17 octopus2 ceph-osd[4521]: 8:
(BlueStore::_open_db_and_around(bool, bool)+0x26b) [0x5640482a5f8b]
Oct 30 12:44:17 octopus2 ceph-osd[4521]: 9:
(BlueStore::_mount()+0x9c) [0x5640482a896c]
Oct 30 12:44:17 octopus2 ceph-osd[4521]: 10: (OSD::init()+0x38a)
[0x564047daacea]
Oct 30 12:44:17 octopus2 ceph-osd[4521]: 11: main()
Oct 30 12:44:17 octopus2 ceph-osd[4521]: 12: __libc_start_main()
Oct 30 12:44:17 octopus2 ceph-osd[4521]: 13: _start()
Oct 30 12:44:17 octopus2 ceph-osd[4521]: NOTE: a copy of the
executable, or `objdump -rdS <executable>` is needed to interpret
this.
Oct 30 12:44:17 octopus2 ceph-osd[4521]: -1>
2023-10-30T12:44:17.084+0000 7f4971ed2100 -1
/build/ceph-16.2.14/src/kv/RocksDBStore.cc: In function 'int
RocksDBStore::do_open(std::ostream&, bool, bool, const string&)'
thread 7f4971ed2100 time 2023-10-30T12:44:17.087172+0000
I've submitted bug report here https://tracker.ceph.com/issues/63353
but may be community here have some ideas how to fix it unless it's
really a bug.
Thanks
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