Mon Aug  9 16:28:14 [conn1] client id: 500f0000 showroom.$cmd   2004
Mon Aug  9 16:28:14 [conn1] DBConfig unserialize: showroom { _id: "showroom", partitioned: true, primary: "shard0000" }
Mon Aug  9 16:28:14 [conn1] Request::process ns: showroom.$cmd msg id:0 attempt: 0
Mon Aug  9 16:28:14 [conn1] single query: showroom.$cmd  { count: "ShowroomItem", query: { ShowroomIDs: 7 } }  ntoreturn: -1
Mon Aug  9 16:28:14 [conn1] creating WriteBackListener for: 10.1.100.82:20000
Mon Aug  9 16:28:14 [WriteBackListener] creating new connection to:10.1.100.82:20000
Mon Aug  9 16:28:14 [conn1]  have to set shard version for conn: 0x7f7e78001720 ns:showroom.ShowroomItem my last seq: 0  current: 2 version: 14|3 manager: 0xe863d0
Mon Aug  9 16:28:14 [conn1]     setShardVersion  shard0000 10.1.100.82:20000  showroom.ShowroomItem  { setShardVersion: "showroom.ShowroomItem", configdb: "10.1.100.82:20001", version: Timestamp 14000|3, serverID: ObjectId('4c60         64782c1d70e6b063312e'), shard: "shard0000", shardHost: "10.1.100.82:20000" } 0x7f7e78001720
Mon Aug  9 16:28:14 [conn1]       setShardVersion success!
Mon Aug  9 16:28:14 [conn1] creating WriteBackListener for: 10.1.100.83:20000
Mon Aug  9 16:28:14 [WriteBackListener] creating new connection to:10.1.100.83:20000
Mon Aug  9 16:28:14 [conn1]  have to set shard version for conn: 0x7f7e78002080 ns:showroom.ShowroomItem my last seq: 0  current: 2 version: 14|1 manager: 0xe863d0
Mon Aug  9 16:28:14 [conn1]     setShardVersion  shard0001 10.1.100.83:20000  showroom.ShowroomItem  { setShardVersion: "showroom.ShowroomItem", configdb: "10.1.100.82:20001", version: Timestamp 14000|1, serverID: ObjectId('4c60         64782c1d70e6b063312e'), shard: "shard0001", shardHost: "10.1.100.83:20000" } 0x7f7e78002080
Mon Aug  9 16:28:14 [conn1]       setShardVersion success!
Mon Aug  9 16:28:14 [conn3] client id: 50110000 showroom.$cmd   2004
Mon Aug  9 16:28:14 [conn3] Request::process ns: showroom.$cmd msg id:0 attempt: 0
Mon Aug  9 16:28:14 [conn3] single query: showroom.$cmd  { mapreduce: "ShowroomItem", verbose: true, query: { ShowroomIDs: 7 }, map: function() {emit(this.Year, {count:1});};, reduce: function(key, vals) {var t = 0; for (var i =          0; i < vals.length; i++) ..., keeptemp: false }  ntoreturn: -1
Mon Aug  9 16:28:14 [conn4] client id: 50120000 showroom.$cmd   2004
Mon Aug  9 16:28:14 [conn4] Request::process ns: showroom.$cmd msg id:0 attempt: 0
Mon Aug  9 16:28:14 [conn4] single query: showroom.$cmd  { mapreduce: "ShowroomItem", verbose: true, query: { ShowroomIDs: 7 }, map: function() {emit(this.VehicleType, {count:1});};, reduce: function(key, vals) {var t = 0; for (         var i = 0; i < vals.length; i++) ..., keeptemp: false }  ntoreturn: -1
Mon Aug  9 16:28:14 creating new connection to:10.1.100.82:20000
Mon Aug  9 16:28:14 [conn2] client id: 50100000 showroom.$cmd   2004
Mon Aug  9 16:28:14 [conn2] Request::process ns: showroom.$cmd msg id:0 attempt: 0
Mon Aug  9 16:28:14 creating new connection to:10.1.100.83:20000
Mon Aug  9 16:28:14 [conn2] single query: showroom.$cmd  { mapreduce: "ShowroomItem", verbose: true, query: { ShowroomIDs: 7 }, map: function() {emit(this.Make, {count:1});};, reduce: function(key, vals) {var t = 0; for (var i =          0; i < vals.length; i++) ..., keeptemp: false }  ntoreturn: -1
Mon Aug  9 16:28:14 creating new connection to:10.1.100.82:20000
Mon Aug  9 16:28:14 creating new connection to:10.1.100.83:20000
Mon Aug  9 16:28:14   Assertion failure _grab client/parallel.cpp 461
Mon Aug  9 16:28:14 creating new connection to:10.1.100.83:20000
0x4fc393 0x508b61 0x55ef43 0x672880 0x7f7e7de0ba04 0x7f7e7d3c9d4d
 mongos(_ZN5mongo12sayDbContextEPKc+0xb3) [0x4fc393]
 mongos(_ZN5mongo8assertedEPKcS1_j+0x111) [0x508b61]
 mongos(_ZN5mongo6Future13commandThreadEv+0x623) [0x55ef43]
 mongos(thread_proxy+0x80) [0x672880]
 /lib/libpthread.so.0 [0x7f7e7de0ba04]
 /lib/libc.so.6(clone+0x6d) [0x7f7e7d3c9d4d]
terminate called after throwing an instance of 'mongo::AssertionException'
  what():  assertion client/parallel.cpp:461
Aborted