Slave log output:

Tue Apr 13 14:41:19 repl: from host:10.211.143.79:27017
Tue Apr 13 14:41:35 building new index on

{ _id: 1 }

for buzzfeed.report
Tue Apr 13 14:41:35 Buildindex buzzfeed.report idxNo:1 { name: "id", ns: "buzzfeed.report", key:

{ _id: 1 }

}
Tue Apr 13 14:41:42 external sort used : 2 files in 6 secs
Tue Apr 13 14:41:43 done for 1153414 records 7.802secs
Tue Apr 13 14:41:43 CMD: reIndex buzzfeed.report
Tue Apr 13 14:41:43 User Exception 10058:not master
Tue Apr 13 14:41:43 buzzfeed.$cmd Caught Assertion in insert , continuing
Tue Apr 13 14:41:43 insert exception userassert:not master 0ms
Tue Apr 13 14:41:43 User Exception 10058:not master
Tue Apr 13 14:41:43 buzzfeed.$cmd Caught Assertion in insert , continuing
Tue Apr 13 14:41:43 insert exception userassert:not master 0ms
Tue Apr 13 14:41:43 repl: applied 5 operations
Tue Apr 13 14:41:43 repl: end sync_pullOpLog syncedTo: Tue Apr 13 14:41:35 2010 4bc4badf:3

Actions:

MASTER:
> db.report.ensureIndex(

{time:1}

);
> db.report.getIndexes()
[
{
"name" : "id",
"ns" : "buzzfeed.report",
"key" :

{ "_id" : 1 }

},
{
"_id" : ObjectId("4bc4ba93b69879591542997a"),
"ns" : "buzzfeed.report",
"key" :

{ "time" : 1 }

,
"name" : "time_1"
}
]

SLAVE:
> db.report.getIndexes()
[
{
"name" : "id",
"ns" : "buzzfeed.report",
"key" :

{ "_id" : 1 }

},
{
"_id" : ObjectId("4bc4b902b698795915429979"),
"ns" : "buzzfeed.report",
"key" :

{ "time" : 1 }

,
"name" : "time_1"
}
]
>

MASTER:
> db.report.reIndex()

SLAVE:
> db.report.getIndexes()
[ ]