----
Testing mode: primaryPreferred, tag sets: undefined
----
----
about to do: { "distinct" : "user", "key" : { "x" : 1 }, "query" : { "x" : 1 } }
----
 m31101| Tue Jul 30 09:05:37.511 [initandlisten] connection accepted from 10.28.48.89:50027 #8 (6 connections now open)
 m31101| Tue Jul 30 09:05:37.511 [conn8] run command test.$cmd { query: { distinct: "user", key: { x: 1.0 }, query: { x: 1.0 } }, $readPreference: { mode: "primaryPreferred" } }
 m31101| Tue Jul 30 09:05:37.511 [conn8] command test.$cmd command: { query: { distinct: "user", key: { x: 1.0 }, query: { x: 1.0 } }, $readPreference: { mode: "primaryPreferred" } } ntoreturn:1 keyUpdates:0 locks(micros) r:296 reslen:144 0ms
----
cmd result: {
	"values" : [ ],
	"stats" : {
		"n" : 0,
		"nscanned" : 0,
		"nscannedObjects" : 0,
		"timems" : 0,
		"cursor" : "BtreeCursor x_1"
	},
	"ok" : 1
}
----
 m31100| Tue Jul 30 09:05:37.511 [conn16] query test.system.profile query: { op: "command", ns: "test.$cmd", command.query.distinct: "user" } ntoreturn:1 ntoskip:0 nscanned:0 keyUpdates:0 locks(micros) r:194 nreturned:0 reslen:20 0ms
 m31101| Tue Jul 30 09:05:37.511 [conn1] query test.system.profile query: { op: "command", ns: "test.$cmd", command.query.distinct: "user" } ntoreturn:1 ntoskip:0 nscanned:1 keyUpdates:0 locks(micros) r:147 nreturned:1 reslen:445 0ms
 m31101| Tue Jul 30 09:05:37.511 [conn1] run command admin.$cmd { isMaster: 1.0 }
 m31101| Tue Jul 30 09:05:37.511 [conn1] command admin.$cmd command: { isMaster: 1.0 } ntoreturn:1 keyUpdates:0  reslen:335 0ms
assert failed
Error: Printing Stack Trace
    at printStackTrace (src/mongo/shell/utils.js:37:15)
    at doassert (src/mongo/shell/assert.js:6:5)
    at assert (src/mongo/shell/assert.js:14:5)
    at D:\slave\Windows_64bit\mongo\jstests\sharding\read_pref_cmd.js:77:21
    at Array.forEach (native)
    at cmdTest (D:\slave\Windows_64bit\mongo\jstests\sharding\read_pref_cmd.js:64:18)
    at testReadPreference (D:\slave\Windows_64bit\mongo\jstests\sharding\read_pref_cmd.js:102:5)
    at D:\slave\Windows_64bit\mongo\jstests\sharding\read_pref_cmd.js:242:9
    at Array.forEach (native)
    at testAllModes (D:\slave\Windows_64bit\mongo\jstests\sharding\read_pref_cmd.js:238:7)
Tue Jul 30 09:05:37.527 assert failed at src/mongo/shell/assert.js:7
failed to load: D:\slave\Windows_64bit\mongo\jstests\sharding\read_pref_cmd.js