I upgraded my lab cluster to 10.1.0 specifically to test out bluestore and see
what latency difference it makes.
I was able to one by one zap and recreate my OSDs to bluestore and rebalance
the cluster (the change to having new OSDs start with low weight threw me at
first, but once I worked that out it was fine).
I was all good until I completed the last OSD, and then one of the earlier ones
fell over and refuses to restart. Every attempt to start fails with this
assertion failure:
-2> 2016-03-31 15:15:08.868588 7f931e5f0800 0 <cls>
cls/cephfs/cls_cephfs.cc:202: loading cephfs_size_scan
-1> 2016-03-31 15:15:08.868800 7f931e5f0800 1 <cls>
cls/timeindex/cls_timeindex.cc:259: Loaded timeindex class!
0> 2016-03-31 15:15:08.870948 7f931e5f0800 -1 osd/OSD.h: In function
'OSDMapRef OSDService::get_map(epoch_t)' thread 7f931e5f0800 time 2016-03-31
15:15:08.869638
osd/OSD.h: 886: FAILED assert(ret)
ceph version 10.1.0 (96ae8bd25f31862dbd5302f304ebf8bf1166aba6)
1: (ceph::__ceph_assert_fail(char const*, char const*, int, char const*)+0x85)
[0x558cee37da55]
2: (OSDService::get_map(unsigned int)+0x3d) [0x558cedd6a6fd]
3: (OSD::init()+0xf22) [0x558cedd1d172]
4: (main()+0x2aab) [0x558cedc83a2b]
5: (__libc_start_main()+0xf5) [0x7f931b506b15]
6: (()+0x349689) [0x558cedccd689]
NOTE: a copy of the executable, or `objdump -rdS <executable>` is needed to
interpret this.
I could just zap and recreate it again, but I would be curious to know how to
fix it, or unless someone can suggest if this is a bug that needs looking at.
Cheers,
Adrian
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