2014-12-26T15:55:15.811-0500 E INDEX    [conn1] exception while cleaning up in-progress index build: field not found, expected type 2
2014-12-26T15:55:15.811-0500 I -        [conn1] Fatal assertion 17493 Location13111 field not found, expected type 2

#0  0x00007ffff7bcc20b in raise (sig=5) at ../nptl/sysdeps/unix/sysv/linux/pt-raise.c:37
#1  0x00000000018a36df in mongo::mongo_breakpoint () at src/mongo/util/debug_util.cpp:58
#2  0x0000000001899ed4 in mongo::breakpoint () at src/mongo/util/debug_util.h:73
#3  0x000000000189907e in mongo::fassertFailedWithStatus (msgid=17493, status=...) at src/mongo/util/assert_util.cpp:178
#4  0x0000000001267f40 in mongo::IndexCatalog::IndexBuildBlock::fail (this=0x49714a0) at src/mongo/db/catalog/index_catalog.cpp:479
#5  0x00000000012719ef in mongo::MultiIndexBlock::~MultiIndexBlock (this=0x7ffff7fcb200, __in_chrg=<optimized out>) at src/mongo/db/catalog/index_create.cpp:86
#6  0x000000000129c465 in mongo::CmdCreateIndex::run (this=0x2835a40 <mongo::cmdCreateIndex>, txn=0x7ffff7fcc7b0, dbname=..., cmdObj=..., options=0, errmsg=..., result=..., 
    fromRepl=false) at src/mongo/db/commands/create_indexes.cpp:160
#7  0x0000000001322425 in mongo::_execCommand (txn=0x7ffff7fcc7b0, c=0x2835a40 <mongo::cmdCreateIndex>, dbname=..., cmdObj=..., queryOptions=0, errmsg=..., result=..., 
    fromRepl=false) at src/mongo/db/dbcommands.cpp:1252
#8  0x00000000013233a2 in mongo::Command::execCommand (txn=0x7ffff7fcc7b0, c=0x2835a40 <mongo::cmdCreateIndex>, queryOptions=0, cmdns=0x37bc014 "test.$cmd", cmdObj=..., 
    result=..., fromRepl=false) at src/mongo/db/dbcommands.cpp:1468
#9  0x0000000001323c84 in mongo::_runCommands (txn=0x7ffff7fcc7b0, ns=0x37bc014 "test.$cmd", _cmdobj=..., b=..., anObjBuilder=..., fromRepl=false, queryOptions=0)
    at src/mongo/db/dbcommands.cpp:1543
#10 0x00000000015277da in mongo::runCommands (txn=0x7ffff7fcc7b0, ns=0x37bc014 "test.$cmd", jsobj=..., curop=..., b=..., anObjBuilder=..., fromRepl=false, queryOptions=0)
    at src/mongo/db/query/find.cpp:131
#11 0x0000000001529563 in mongo::runQuery (txn=0x7ffff7fcc7b0, m=..., q=..., curop=..., result=..., fromDBDirectClient=false) at src/mongo/db/query/find.cpp:565
#12 0x000000000142f72b in mongo::receivedQuery (txn=0x7ffff7fcc7b0, c=..., dbresponse=..., m=..., fromDBDirectClient=false) at src/mongo/db/instance.cpp:224
#13 0x000000000143083d in mongo::assembleResponse (txn=0x7ffff7fcc7b0, m=..., dbresponse=..., remote=..., fromDBDirectClient=false) at src/mongo/db/instance.cpp:394
#14 0x00000000011326d6 in mongo::MyMessageHandler::process (this=0x307a108, m=..., port=0x30a9bb0, le=0x37c2cd0) at src/mongo/db/db.cpp:195
#15 0x00000000018c1025 in mongo::PortMessageServer::handleIncomingMsg (arg=0x30926b0) at src/mongo/util/net/message_server_port.cpp:234
#16 0x00007ffff7bc4182 in start_thread (arg=0x7ffff7fcd700) at pthread_create.c:312
#17 0x00007ffff6cc4efd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111