m31001| 2014-09-17T13:58:25.873-0400 D JOURNAL  [journal] journal REMAPPRIVATEVIEW done startedAt: 1 n:1 0ms
 m31001| 2014-09-17T13:58:25.922-0400 D COMMANDS [conn1] run command admin.$cmd { resync: 1.0 }
 m31001| 2014-09-17T13:58:25.922-0400 D COMMANDS [conn1] command: { resync: 1.0 }
 m31001| 2014-09-17T13:58:25.922-0400 I REPLSETS [conn1] client forcing resync from 127.0.0.1:31000
 m31001| 2014-09-17T13:58:25.922-0400 I -        [conn1] Invariant failure _requests.empty() src/mongo/db/concurrency/lock_state.cpp 349
 m31001| 2014-09-17T13:58:25.930-0400 I -        [conn1] 
 m31001|  0x110fafe 0x10b0620 0x109457f 0x9fd8e7 0x9eb8af 0x9ef37e 0x9ef40a 0xd3a068 0xd3abae 0xdc86bb 0xa0a12d 0xa0bb88 0xa0ceea 0xca2aa1 0xb3d678 0xb3fac5 0x7a7879 0x10c70cb 0x2aaaaaccd407 0x2aaaabb56b0d
 m31001| ----- BEGIN BACKTRACE -----
 m31001| {"backtrace":[{"b":"400000","o":"D0FAFE"},{"b":"400000","o":"CB0620"},{"b":"400000","o":"C9457F"},{"b":"400000","o":"5FD8E7"},{"b":"400000","o":"5EB8AF"},{"b":"400000","o":"5EF37E"},{"b":"400000","o":"5EF40A"},{"b":"400000","o":"93A068"},{"b":"400000","o":"93ABAE"},{"b":"400000","o":"9C86BB"},{"b":"400000","o":"60A12D"},{"b":"400000","o":"60BB88"},{"b":"400000","o":"60CEEA"},{"b":"400000","o":"8A2AA1"},{"b":"400000","o":"73D678"},{"b":"400000","o":"73FAC5"},{"b":"400000","o":"3A7879"},{"b":"400000","o":"CC70CB"},{"b":"2AAAAACC7000","o":"6407"},{"b":"2AAAABA82000","o":"D4B0D"}],"processInfo":{ "mongodbVersion" : "2.7.7-pre-", "gitVersion" : "ba726b4ee22efc2ea9b86b52724e0a4081c16c53", "uname" : { "sysname" : "Linux", "release" : "2.6.21.7-2.ec2.v1.2.fc8xen", "version" : "#1 SMP Fri Nov 20 17:48:28 EST 2009", "machine" : "x86_64" }, "somap" : [ { "elfType" : 2, "b" : "400000" }, { "b" : "2AAAAACC7000", "path" : "/lib64/libpthread.so.0", "elfType" : 3 }, { "b" : "2AAAAAEE2000", "path" : "/lib64/librt.so.1", "elfType" : 3 }, { "b" : "2AAAAB0EB000", "path" : "/lib64/libdl.so.2", "elfType" : 3 }, { "b" : "2AAAAB2F0000", "path" : "/usr/lib64/libstdc  .so.6", "elfType" : 3 }, { "b" : "2AAAAB5F0000", "path" : "/lib64/libm.so.6", "elfType" : 3 }, { "b" : "2AAAAB873000", "path" : "/lib64/libgcc_s.so.1", "elfType" : 3 }, { "b" : "2AAAABA82000", "path" : "/lib64/libc.so.6", "elfType" : 3 }, { "b" : "2AAAAAAAB000", "path" : "/lib64/ld-linux-x86-64.so.2", "elfType" : 3 } ] }}
 m31001|  mongod(mongo::printStackTrace(std::ostream&) 0x2E) [0x110fafe]
 m31001|  mongod(mongo::logContext(char const*) 0xA0) [0x10b0620]
 m31001|  mongod(mongo::invariantFailed(char const*, char const*, unsigned int) 0xFF) [0x109457f]
 m31001|  mongod(mongo::newlm::LockerImpl::unlockGlobal() 0x57) [0x9fd8e7]
 m31001|  mongod(mongo::Lock::GlobalWrite::_tempRelease() 0x1F) [0x9eb8af]
 m31001|  mongod(mongo::Lock::ScopedLock::tempRelease() 0xE) [0x9ef37e]
 m31001|  mongod(mongo::Lock::TempRelease::TempRelease(mongo::Locker*) 0x7A) [0x9ef40a]
 m31001|  mongod(mongo::repl::ReplSource::forceResync(mongo::OperationContext*, char const*) 0x78) [0xd3a068]
 m31001|  mongod(mongo::repl::ReplSource::forceResyncDead(mongo::OperationContext*, char const*) 0xFE) [0xd3abae]
 m31001|  mongod(mongo::repl::CmdResync::run(mongo::OperationContext*, std::string const&, mongo::BSONObj&, int, std::string&, mongo::BSONObjBuilder&, bool) 0x29B) [0xdc86bb]
 m31001|  mongod(mongo::_execCommand(mongo::OperationContext*, mongo::Command*, std::string const&, mongo::BSONObj&, int, std::string&, mongo::BSONObjBuilder&, bool) 0x4D) [0xa0a12d]
 m31001|  mongod(mongo::Command::execCommand(mongo::OperationContext*, mongo::Command*, int, char const*, mongo::BSONObj&, mongo::BSONObjBuilder&, bool) 0xC48) [0xa0bb88]
 m31001|  mongod(mongo::_runCommands(mongo::OperationContext*, char const*, mongo::BSONObj&, mongo::_BufBuilder<mongo::TrivialAllocator>&, mongo::BSONObjBuilder&, bool, int) 0x77A) [0xa0ceea]
 m31001|  mongod(mongo::newRunQuery(mongo::OperationContext*, mongo::Message&, mongo::QueryMessage&, mongo::CurOp&, mongo::Message&) 0x2341) [0xca2aa1]
 m31001|  mongod( 0x73D678) [0xb3d678]
 m31001|  mongod(mongo::assembleResponse(mongo::OperationContext*, mongo::Message&, mongo::DbResponse&, mongo::HostAndPort const&) 0x5F5) [0xb3fac5]
 m31001|  mongod(mongo::MyMessageHandler::process(mongo::Message&, mongo::AbstractMessagingPort*, mongo::LastError*) 0xB9) [0x7a7879]
 m31001|  mongod(mongo::PortMessageServer::handleIncomingMsg(void*) 0x43B) [0x10c70cb]
 m31001|  libpthread.so.0( 0x6407) [0x2aaaaaccd407]
 m31001|  libc.so.6(clone 0x6D) [0x2aaaabb56b0d]
 m31001| -----  END BACKTRACE  -----