Database Reference
In-Depth Information
"type": "COLLSCAN",
"works": 100002,
"yields": 782,
"unyields": 782,
"invalidates": 0,
"advanced": 100000,
"needTime": 1,
"needFetch": 0,
"isEOF": 1,
"docsTested": 100000,
"children": []
}]
},
"ts": ISODate("2014-05-11T03:30:17.645Z"),
"client": "127.0.0.1",
"allUsers": [],
"user": ""
}
As you can observe in the preceding output, there are a lot of fields in the profiler log, but
we will only review some of the important fields:
•
ts
: This field shows the operation's timestamp, for example,
ISODate
("2014-05-11T03:30:17.645Z")
.
•
op
: This field is used to detect the type of the operation.
The possible values are:
◦
insert
◦
query
◦
update
◦
remove
◦
getmore
◦
command
•
ns
: This is the target namespace of the executed operation. This is a string start-
ing with a database, followed by a dot and the collection name, for example,
testdb.testcollection
.
•
query
: This field is a detailed plan of the operation's query. The following is an
example of this field:
