MongoDB seems to crash sporadically, without writing any errors to the log. When starting up again it has to recover and preallocate the journal. The crashes are occuring every few days.

This is running with a three node replica set, keyFile authentication, SSL encryption.

The last few logs before going down (the last time this happened):

Wed Oct 23 17:01:36.701 [conn225607] getmore OCPM_production.system.namespaces cursorid:1049323978067064518 ntoreturn:0 keyUpdates:0 numYields: 79 locks(micros) r:2157868 nreturned:11435 reslen:815897 2021ms
Wed Oct 23 17:01:36.700 [conn225598] getmore OCPM_production.system.namespaces cursorid:1049323977733673153 ntoreturn:0 keyUpdates:0 numYields: 79 locks(micros) r:2131888 nreturned:11435 reslen:815897 1995ms
Wed Oct 23 17:01:36.709 [conn225621] getmore OCPM_production.system.namespaces cursorid:1049324115395140903 ntoreturn:0 keyUpdates:0 numYields: 78 locks(micros) r:1458852 nreturned:11435 reslen:815897 1726ms
Wed Oct 23 17:01:37.439 [slaveTracking] update local.slaves query: { _id: ObjectId('515c48f2146873509fd637b8'), config:

{ _id: 1, host: "repl1", priority: 0.0 }

, ns: "local.oplog.rs" } update: { $set:

{ syncedTo: Timestamp 1382544093000|7 }

} nscanned:1 nupdated:1 fastmod:1 keyUpdates:0 locks(micros) w:1640990 1704ms