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krbd: return error when no initial monitor address found

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Since we filter monitor addresses based on ms_mode, check that at
least one address was found.

Otherwise, we mismatch arguments when calling sysfs/add_single_major
which emits a misleading error message to dmesg:

  libceph: resolve 'name=user1' (ret=-3): failed
  libceph: parse_ips bad ip 'name=user1,key=client.user1'

Fixes: https://tracker.ceph.com/issues/54128

Signed-off-by: Burt Holzman <burt@fnal.gov>
This commit is contained in:
Burt Holzman 2022-02-02 09:18:52 -06:00
parent 8505861220
commit 0076ffc86e
1 changed files with 5 additions and 0 deletions
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5
src/krbd.cc
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@ -223,6 +223,11 @@ static int build_map_buf(CephContext *cct, const krbd_spec& spec,
}
}
if (oss.tellp() == 0) {
std::cerr << "rbd: failed to get mon address (possible ms_mode mismatch)" << std::endl;
return -ENOENT;
}
oss << " name=" << cct->_conf->name.get_id();
KeyRing keyring;