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Bug #720
closedmarking an MDS that is operational as failed causes an assert
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Description
How to reproduce:
1. start all cluster nodes
2. ./ceph mds fail a
Backtrace:
mds/MDSMap.h: In function 'const MDSMap::mds_info_t& MDSMap::get_mds_info(int)', In thread 7fe40e413710 mds/MDSMap.h:229: FAILED assert(up.count(m) && mds_info.count(up[m])) ceph version 0.25~rc (commit:a95fa5b94b619cd547bb17f87ef9bb0172f14bb9) 1: (ceph::__ceph_assert_fail(char const*, char const*, int, char const*)+0x39) [0xa4e83e] 2: (MDSMap::get_mds_info(int)+0x7c) [0x91adb4] 3: (MDBalancer::check_targets()+0x42) [0x9172a8] 4: (MDBalancer::try_rebalance()+0x28) [0x915d82] 5: (MDS::handle_mds_map(MMDSMap*)+0x2338) [0x772ff8] 6: (MDS::_dispatch(Message*)+0xa34) [0x778614] 7: (MDS::ms_dispatch(Message*)+0x38) [0x777a32] 8: (Messenger::ms_deliver_dispatch(Message*)+0x63) [0x7507b7] 9: (SimpleMessenger::dispatch_entry()+0x6d8) [0x73cd0e] 10: (SimpleMessenger::DispatchThread::entry()+0x2c) [0x732ba2] 11: (Thread::_entry_func(void*)+0x23) [0x74f70b] 12: (()+0x68ba) [0x7fe410a688ba] 13: (clone()+0x6d) [0x7fe40f6fd02d] NOTE: a copy of the executable, or `objdump -rdS <executable>` is needed to interpret this. *** Caught signal (Aborted) *** in thread 7fe40e413710 ceph version 0.25~rc (commit:a95fa5b94b619cd547bb17f87ef9bb0172f14bb9) 1: (ceph::BackTrace::BackTrace(int)+0x2d) [0xa4eb87] 2: (handle_fatal_signal(int)+0xb2) [0xa672a7] 3: (()+0xef60) [0x7fe410a70f60] 4: (gsignal()+0x35) [0x7fe40f660165] 5: (abort()+0x180) [0x7fe40f662f70] 6: (__gnu_cxx::__verbose_terminate_handler()+0x115) [0x7fe40fef3dc5] 7: (()+0xcb166) [0x7fe40fef2166] 8: (()+0xcb193) [0x7fe40fef2193] 9: (()+0xcb28e) [0x7fe40fef228e] a: (ceph::__ceph_assert_warn(char const*, char const*, int, char const*)+0) [0xa4e9d2] b: (MDSMap::get_mds_info(int)+0x7c) [0x91adb4] c: (MDBalancer::check_targets()+0x42) [0x9172a8] d: (MDBalancer::try_rebalance()+0x28) [0x915d82] e: (MDS::handle_mds_map(MMDSMap*)+0x2338) [0x772ff8] f: (MDS::_dispatch(Message*)+0xa34) [0x778614] 10: (MDS::ms_dispatch(Message*)+0x38) [0x777a32] 11: (Messenger::ms_deliver_dispatch(Message*)+0x63) [0x7507b7] 12: (SimpleMessenger::dispatch_entry()+0x6d8) [0x73cd0e] 13: (SimpleMessenger::DispatchThread::entry()+0x2c) [0x732ba2] 14: (Thread::_entry_func(void*)+0x23) [0x74f70b] 15: (()+0x68ba) [0x7fe410a688ba] 16: (clone()+0x6d) [0x7fe40f6fd02d]
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