localhost kernel: [12422.302136] Out of memory: Kill process 5893 (mongod) score 405 or sacrifice child.

> db.serverStatus()
{
	"host" : "rtdstest",
	"version" : "3.0.0",
	"process" : "mongod",
	"pid" : NumberLong(14049),
	"uptime" : 5109,
	"uptimeMillis" : NumberLong(5108843),
	"uptimeEstimate" : 4731,
	"localTime" : ISODate("2015-03-04T05:56:32.167Z"),
	"asserts" : {
		"regular" : 0,
		"warning" : 0,
		"msg" : 0,
		"user" : 0,
		"rollovers" : 0
	},
	"connections" : {
		"current" : 6,
		"available" : 51194,
		"totalCreated" : NumberLong(12)
	},
	"cursors" : {
		"note" : "deprecated, use server status metrics",
		"clientCursors_size" : 0,
		"totalOpen" : 0,
		"pinned" : 0,
		"totalNoTimeout" : 0,
		"timedOut" : 0
	},
	"extra_info" : {
		"note" : "fields vary by platform",
		"heap_usage_bytes" : 1181006888,
		"page_faults" : 59806
	},
	"globalLock" : {
		"totalTime" : NumberLong("5108855000"),
		"currentQueue" : {
			"total" : 0,
			"readers" : 0,
			"writers" : 0
		},
		"activeClients" : {
			"total" : 11,
			"readers" : 0,
			"writers" : 0
		}
	},
	"locks" : {
		"Global" : {
			"acquireCount" : {
				"r" : NumberLong(1040910),
				"w" : NumberLong(416818),
				"W" : NumberLong(4)
			}
		},
		"MMAPV1Journal" : {
			"acquireCount" : {
				"r" : NumberLong(2),
				"w" : NumberLong(5)
			}
		},
		"Database" : {
			"acquireCount" : {
				"r" : NumberLong(1040902),
				"w" : NumberLong(413816),
				"R" : NumberLong(8),
				"W" : NumberLong(3002)
			},
			"acquireWaitCount" : {
				"r" : NumberLong(526),
				"w" : NumberLong(2926),
				"W" : NumberLong(2787)
			},
			"timeAcquiringMicros" : {
				"r" : NumberLong(83807792),
				"w" : NumberLong(117579505),
				"W" : NumberLong(318323222)
			}
		},
		"Collection" : {
			"acquireCount" : {
				"r" : NumberLong(1113677),
				"w" : NumberLong(416816)
			}
		}
	},
	"network" : {
		"bytesIn" : 125421456,
		"bytesOut" : 10352393,
		"numRequests" : 417271
	},
	"opcounters" : {
		"insert" : 413816,
		"query" : 1,
		"update" : 0,
		"delete" : 0,
		"getmore" : 0,
		"command" : 3456
	},
	"opcountersRepl" : {
		"insert" : 0,
		"query" : 0,
		"update" : 0,
		"delete" : 0,
		"getmore" : 0,
		"command" : 0
	},
	"storageEngine" : {
		"name" : "wiredTiger"
	},
	"wiredTiger" : {
		"uri" : "statistics:",
		"LSM" : {
			"sleep for LSM checkpoint throttle" : 0,
			"sleep for LSM merge throttle" : 0,
			"rows merged in an LSM tree" : 0,
			"application work units currently queued" : 0,
			"merge work units currently queued" : 0,
			"tree queue hit maximum" : 0,
			"switch work units currently queued" : 0,
			"tree maintenance operations scheduled" : 0,
			"tree maintenance operations discarded" : 0,
			"tree maintenance operations executed" : 0
		},
		"async" : {
			"number of allocation state races" : 0,
			"number of operation slots viewed for allocation" : 0,
			"current work queue length" : 0,
			"number of flush calls" : 0,
			"number of times operation allocation failed" : 0,
			"maximum work queue length" : 0,
			"number of times worker found no work" : 0,
			"total allocations" : 0,
			"total compact calls" : 0,
			"total insert calls" : 0,
			"total remove calls" : 0,
			"total search calls" : 0,
			"total update calls" : 0
		},
		"block-manager" : {
			"mapped bytes read" : 0,
			"bytes read" : 661356544,
			"bytes written" : 3154300928,
			"mapped blocks read" : 0,
			"blocks pre-loaded" : 6,
			"blocks read" : 161464,
			"blocks written" : 732235
		},
		"cache" : {
			"tracked dirty bytes in the cache" : 145758110,
			"bytes currently in the cache" : 218847451,
			"maximum bytes configured" : 1073741824,
			"bytes read into cache" : 306,
			"bytes written from cache" : 1474341161,
			"pages evicted by application threads" : 0,
			"checkpoint blocked page eviction" : 0,
			"unmodified pages evicted" : 0,
			"page split during eviction deepened the tree" : 0,
			"modified pages evicted" : 3000,
			"pages selected for eviction unable to be evicted" : 0,
			"pages evicted because they exceeded the in-memory maximum" : 0,
			"pages evicted because they had chains of deleted items" : 0,
			"failed eviction of pages that exceeded the in-memory maximum" : 0,
			"hazard pointer blocked page eviction" : 0,
			"internal pages evicted" : 0,
			"maximum page size at eviction" : 249,
			"eviction server candidate queue empty when topping up" : 0,
			"eviction server candidate queue not empty when topping up" : 0,
			"eviction server evicting pages" : 0,
			"eviction server populating queue, but not evicting pages" : 0,
			"eviction server unable to reach eviction goal" : 0,
			"pages split during eviction" : 0,
			"pages walked for eviction" : 0,
			"eviction worker thread evicting pages" : 0,
			"in-memory page splits" : 0,
			"percentage overhead" : 8,
			"tracked dirty pages in the cache" : 7243,
			"pages currently held in the cache" : 18009,
			"pages read into cache" : 6,
			"pages written from cache" : 400314
		},
		"connection" : {
			"pthread mutex condition wait calls" : 235351,
			"files currently open" : 9007,
			"memory allocations" : 19023254,
			"memory frees" : 9436838,
			"memory re-allocations" : 23706,
			"total read I/Os" : 176475,
			"pthread mutex shared lock read-lock calls" : 3201232,
			"pthread mutex shared lock write-lock calls" : 797865,
			"total write I/Os" : 1152662
		},
		"cursor" : {
			"cursor create calls" : 2802022,
			"cursor insert calls" : 1523920,
			"cursor next calls" : 3012,
			"cursor prev calls" : 3003,
			"cursor remove calls" : 0,
			"cursor reset calls" : 1613872,
			"cursor search calls" : 1972827,
			"cursor search near calls" : 52143,
			"cursor update calls" : 0
		},
		"data-handle" : {
			"connection dhandles swept" : 6,
			"connection candidate referenced" : 448192,
			"connection sweeps" : 507,
			"connection time-of-death sets" : 181568,
			"session dhandles swept" : 325685,
			"session sweep attempts" : 13896
		},
		"log" : {
			"log buffer size increases" : 1,
			"total log buffer size" : 22503424,
			"log bytes of payload data" : 142640845,
			"log bytes written" : 161999360,
			"yields waiting for previous log file close" : 0,
			"total size of compressed records" : 67924473,
			"total in-memory size of compressed records" : 226948923,
			"log records too small to compress" : 6082,
			"log records not compressed" : 240504,
			"log records compressed" : 194371,
			"maximum log file size" : 104857600,
			"pre-allocated log files prepared" : 2,
			"number of pre-allocated log files to create" : 1,
			"pre-allocated log files used" : 1,
			"log read operations" : 0,
			"records processed by log scan" : 0,
			"log scan records requiring two reads" : 0,
			"log scan operations" : 0,
			"consolidated slot closures" : 364624,
			"logging bytes consolidated" : 144881408,
			"consolidated slot joins" : 394190,
			"consolidated slot join races" : 5,
			"slots selected for switching that were unavailable" : 7,
			"record size exceeded maximum" : 0,
			"failed to find a slot large enough for record" : 1,
			"consolidated slot join transitions" : 4,
			"log sync operations" : 132,
			"log write operations" : 440958
		},
		"reconciliation" : {
			"page reconciliation calls" : 392016,
			"page reconciliation calls for eviction" : 3000,
			"split bytes currently awaiting free" : 0,
			"split objects currently awaiting free" : 0
		},
		"session" : {
			"open cursor count" : 413754,
			"open session count" : 90
		},
		"thread-yield" : {
			"page acquire busy blocked" : 0,
			"page acquire eviction blocked" : 0,
			"page acquire locked blocked" : 0,
			"page acquire read blocked" : 0,
			"page acquire time sleeping (usecs)" : 0
		},
		"transaction" : {
			"transaction begins" : 428981,
			"transaction checkpoints" : 79,
			"transaction checkpoint currently running" : 1,
			"transaction checkpoint max time (msecs)" : 15011,
			"transaction checkpoint min time (msecs)" : 1,
			"transaction checkpoint most recent time (msecs)" : 14423,
			"transaction checkpoint total time (msecs)" : 201933,
			"transactions committed" : 428980,
			"transaction failures due to cache overflow" : 0,
			"transaction range of IDs currently pinned" : 1933,
			"transactions rolled back" : 1
		},
		"concurrentTransactions" : {
			"write" : {
				"out" : 0,
				"available" : 128,
				"totalTickets" : 128
			},
			"read" : {
				"out" : 1,
				"available" : 127,
				"totalTickets" : 128
			}
		}
	},
	"writeBacksQueued" : false,
	"mem" : {
		"bits" : 64,
		"resident" : 1153,
		"virtual" : 1299,
		"supported" : true,
		"mapped" : 0,
		"mappedWithJournal" : 0
	},
	"metrics" : {
		"commands" : {
			"buildInfo" : {
				"failed" : NumberLong(0),
				"total" : NumberLong(6)
			},
			"createIndexes" : {
				"failed" : NumberLong(0),
				"total" : NumberLong(3000)
			},
			"dbStats" : {
				"failed" : NumberLong(0),
				"total" : NumberLong(3)
			},
			"getLog" : {
				"failed" : NumberLong(0),
				"total" : NumberLong(5)
			},
			"getnonce" : {
				"failed" : NumberLong(0),
				"total" : NumberLong(1)
			},
			"isMaster" : {
				"failed" : NumberLong(0),
				"total" : NumberLong(403)
			},
			"listCollections" : {
				"failed" : NumberLong(0),
				"total" : NumberLong(5)
			},
			"listDatabases" : {
				"failed" : NumberLong(0),
				"total" : NumberLong(7)
			},
			"ping" : {
				"failed" : NumberLong(0),
				"total" : NumberLong(6)
			},
			"replSetGetStatus" : {
				"failed" : NumberLong(5),
				"total" : NumberLong(5)
			},
			"serverStatus" : {
				"failed" : NumberLong(0),
				"total" : NumberLong(1)
			},
			"top" : {
				"failed" : NumberLong(0),
				"total" : NumberLong(9)
			},
			"whatsmyuri" : {
				"failed" : NumberLong(0),
				"total" : NumberLong(5)
			}
		},
		"cursor" : {
			"timedOut" : NumberLong(0),
			"open" : {
				"noTimeout" : NumberLong(0),
				"pinned" : NumberLong(0),
				"total" : NumberLong(0)
			}
		},
		"document" : {
			"deleted" : NumberLong(0),
			"inserted" : NumberLong(413816),
			"returned" : NumberLong(0),
			"updated" : NumberLong(0)
		},
		"getLastError" : {
			"wtime" : {
				"num" : 0,
				"totalMillis" : 0
			},
			"wtimeouts" : NumberLong(0)
		},
		"operation" : {
			"fastmod" : NumberLong(0),
			"idhack" : NumberLong(0),
			"scanAndOrder" : NumberLong(0),
			"writeConflicts" : NumberLong(0)
		},
		"queryExecutor" : {
			"scanned" : NumberLong(0),
			"scannedObjects" : NumberLong(0)
		},
		"record" : {
			"moves" : NumberLong(0)
		},
		"repl" : {
			"apply" : {
				"batches" : {
					"num" : 0,
					"totalMillis" : 0
				},
				"ops" : NumberLong(0)
			},
			"buffer" : {
				"count" : NumberLong(0),
				"maxSizeBytes" : 268435456,
				"sizeBytes" : NumberLong(0)
			},
			"network" : {
				"bytes" : NumberLong(0),
				"getmores" : {
					"num" : 0,
					"totalMillis" : 0
				},
				"ops" : NumberLong(0),
				"readersCreated" : NumberLong(0)
			},
			"preload" : {
				"docs" : {
					"num" : 0,
					"totalMillis" : 0
				},
				"indexes" : {
					"num" : 0,
					"totalMillis" : 0
				}
			}
		},
		"storage" : {
			"freelist" : {
				"search" : {
					"bucketExhausted" : NumberLong(0),
					"requests" : NumberLong(0),
					"scanned" : NumberLong(0)
				}
			}
		},
		"ttl" : {
			"deletedDocuments" : NumberLong(0),
			"passes" : NumberLong(85)
		}
	},
	"ok" : 1
}