1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
|
t = db.mr_bigobject;
t.drop();
var large = "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa";
var s = large;
while (s.length < (6 * 1024 * 1024)) {
s += large;
}
for (i = 0; i < 5; i++)
t.insert({_id: i, s: s});
m = function() {
emit(1, this.s + this.s);
};
r = function(k, v) {
return 1;
};
assert.throws(function() {
r = t.mapReduce(m, r, "mr_bigobject_out");
}, null, "emit should fail");
m = function() {
emit(1, this.s);
};
assert.eq({1: 1}, t.mapReduce(m, r, "mr_bigobject_out").convertToSingleObject(), "A1");
r = function(k, v) {
total = 0;
for (var i = 0; i < v.length; i++) {
var x = v[i];
if (typeof(x) == "number")
total += x;
else
total += x.length;
}
return total;
};
assert.eq({1: t.count() * s.length},
t.mapReduce(m, r, "mr_bigobject_out").convertToSingleObject(),
"A1");
t.drop();
|
