[ceph-users] rbd-nbd timeout and crash

Jan Pekař - Imatic jan.pekar at imatic.cz
Wed Dec 6 00:46:22 PST 2017


Hi,
I run to overloaded cluster (deep-scrub running) for few seconds and 
rbd-nbd client timeouted, and device become unavailable.

block nbd0: Connection timed out
block nbd0: shutting down sockets
block nbd0: Connection timed out
print_req_error: I/O error, dev nbd0, sector 2131833856
print_req_error: I/O error, dev nbd0, sector 2131834112

Is there any way how to extend rbd-nbd timeout?

Also getting pammed devices failed -

rbd-nbd list-mapped

/build/ceph-12.2.2/src/tools/rbd_nbd/rbd-nbd.cc: In function 'int 
get_mapped_info(int, Config*)' thread 7f069d41ec40 time 2017-12-06 
09:40:33.541426
/build/ceph-12.2.2/src/tools/rbd_nbd/rbd-nbd.cc: 841: FAILED 
assert(ifs.is_open())
  ceph version 12.2.2 (cf0baeeeeba3b47f9427c6c97e2144b094b7e5ba) 
luminous (stable)
  1: (ceph::__ceph_assert_fail(char const*, char const*, int, char 
const*)+0x102) [0x7f0693f567c2]
  2: (()+0x14165) [0x559a8783d165]
  3: (main()+0x9) [0x559a87838e59]
  4: (__libc_start_main()+0xf1) [0x7f0691178561]
  5: (()+0xff80) [0x559a87838f80]
  NOTE: a copy of the executable, or `objdump -rdS <executable>` is 
needed to interpret this.
Aborted


Thank you
With regards
Jan Pekar


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