Hi all,
We have an intermittent issue where bluestore osds sometimes fail to
start after a reboot.
The osds all fail the same way [see 2], failing to open the superblock.
One one particular host, there are 24 osds and 4 SSDs partitioned for
the block.db's. The affected non-starting OSDs all have block.db on
the same ssd (/dev/sdaa).
The osds are all running 12.2.5 on latest centos 7.5 and were created
by ceph-volume lvm, e.g. see [1].
This seems like a permissions or similar issue related to the
ceph-volume tooling.
Any clues how to debug this further?
Thanks!
Dan
[1]
====== osd.48 ======
[block] /dev/ceph-34f24306-d90c-49ff-bafb-2657a6a18010/osd-block-99fd8e36-fc4d-4bbc-83d9-f5e611cde4b5
type block
osd id 48
cluster fsid dd535a7e-4647-4bee-853d-f34112615f81
cluster name ceph
osd fsid 99fd8e36-fc4d-4bbc-83d9-f5e611cde4b5
db device /dev/sdaa1
encrypted 0
db uuid 3381a121-1c1b-4e45-a986-c1871c363edc
cephx lockbox secret
block uuid FQkRxS-No7X-ajkP-5L3N-K22a-IXg6-QLceZC
block device
/dev/ceph-34f24306-d90c-49ff-bafb-2657a6a18010/osd-block-99fd8e36-fc4d-4bbc-83d9-f5e611cde4b5
crush device class None
[ db] /dev/sdaa1
PARTUUID 3381a121-1c1b-4e45-a986-c1871c363edc
[2]
-11> 2018-06-07 16:12:16.138407 7fba30fb4d80 1 -- - start start
-10> 2018-06-07 16:12:16.138516 7fba30fb4d80 1
bluestore(/var/lib/ceph/osd/ceph-48) _mount path /var/lib/ceph/os
d/ceph-48
-9> 2018-06-07 16:12:16.138801 7fba30fb4d80 1 bdev create path
/var/lib/ceph/osd/ceph-48/block type kernel
-8> 2018-06-07 16:12:16.138808 7fba30fb4d80 1 bdev(0x55eb46433a00
/var/lib/ceph/osd/ceph-48/block) open path /v
ar/lib/ceph/osd/ceph-48/block
-7> 2018-06-07 16:12:16.138999 7fba30fb4d80 1 bdev(0x55eb46433a00
/var/lib/ceph/osd/ceph-48/block) open size 60
01172414464 (0x57541c00000, 5589 GB) block_size 4096 (4096 B) rotational
-6> 2018-06-07 16:12:16.139188 7fba30fb4d80 1
bluestore(/var/lib/ceph/osd/ceph-48) _set_cache_sizes cache_size
134217728 meta 0.01 kv 0.99 data 0
-5> 2018-06-07 16:12:16.139275 7fba30fb4d80 1 bdev create path
/var/lib/ceph/osd/ceph-48/block type kernel
-4> 2018-06-07 16:12:16.139281 7fba30fb4d80 1 bdev(0x55eb46433c00
/var/lib/ceph/osd/ceph-48/block) open path /v
ar/lib/ceph/osd/ceph-48/block
-3> 2018-06-07 16:12:16.139454 7fba30fb4d80 1 bdev(0x55eb46433c00
/var/lib/ceph/osd/ceph-48/block) open size 60
01172414464 (0x57541c00000, 5589 GB) block_size 4096 (4096 B) rotational
-2> 2018-06-07 16:12:16.139464 7fba30fb4d80 1 bluefs
add_block_device bdev 1 path /var/lib/ceph/osd/ceph-48/blo
ck size 5589 GB
-1> 2018-06-07 16:12:16.139510 7fba30fb4d80 1 bluefs mount
0> 2018-06-07 16:12:16.142930 7fba30fb4d80 -1
/home/jenkins-build/build/workspace/ceph-build/ARCH/x86_64/AVAILA
BLE_ARCH/x86_64/AVAILABLE_DIST/centos7/DIST/centos7/MACHINE_SIZE/huge/release/12.2.5/rpm/el7/BUILD/ceph-12.2.5/src/o
s/bluestore/bluefs_types.h: In function 'static void
bluefs_fnode_t::_denc_finish(ceph::buffer::ptr::iterator&, __u8
*, __u8*, char**, uint32_t*)' thread 7fba30fb4d80 time 2018-06-07
16:12:16.139666
/home/jenkins-build/build/workspace/ceph-build/ARCH/x86_64/AVAILABLE_ARCH/x86_64/AVAILABLE_DIST/centos7/DIST/centos7/MACHINE_SIZE/huge/release/12.2.5/rpm/el7/BUILD/ceph-12.2.5/src/os/bluestore/bluefs_types.h:
54: FAILED assert(pos <= end)
ceph version 12.2.5 (cad919881333ac92274171586c827e01f554a70a)
luminous (stable)
1: (ceph::__ceph_assert_fail(char const*, char const*, int, char
const*)+0x110) [0x55eb3b597780]
2: (bluefs_super_t::decode(ceph::buffer::list::iterator&)+0x776)
[0x55eb3b52db36]
3: (BlueFS::_open_super()+0xfe) [0x55eb3b50cede]
4: (BlueFS::mount()+0xe3) [0x55eb3b5250c3]
5: (BlueStore::_open_db(bool)+0x173d) [0x55eb3b43ebcd]
6: (BlueStore::_mount(bool)+0x40e) [0x55eb3b47025e]
7: (OSD::init()+0x3bd) [0x55eb3b02a1cd]
8: (main()+0x2d07) [0x55eb3af2f977]
9: (__libc_start_main()+0xf5) [0x7fba2d47b445]
10: (()+0x4b7033) [0x55eb3afce033]
NOTE: a copy of the executable, or `objdump -rdS <executable>` is
needed to interpret this.
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