blob: 51b962f7561285790a68e8c8627a79a567ce0627 (
plain)
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
|
'use strict';
/**
* map_reduce_replace_nonexistent.js
*
* Generates some random data and inserts it into a collection. Runs a
* map-reduce command over the collection that computes the frequency
* counts of the 'value' field and stores the results in a new collection.
*
* Uses the "replace" action to write the results to a nonexistent
* output collection.
* @tags: [
* # mapReduce does not support afterClusterTime.
* does_not_support_causal_consistency,
* ]
*/
load('jstests/concurrency/fsm_libs/extend_workload.js'); // for extendWorkload
load('jstests/concurrency/fsm_workloads/map_reduce_inline.js'); // for $config
var $config = extendWorkload($config, function($config, $super) {
// Use the workload name as a prefix for the collection name,
// since the workload name is assumed to be unique.
$config.data.prefix = 'map_reduce_replace_nonexistent';
function uniqueCollectionName(prefix, tid) {
return prefix + tid;
}
$config.states.mapReduce = function mapReduce(db, collName) {
var outCollName = uniqueCollectionName(this.prefix, this.tid);
var fullName = db[outCollName].getFullName();
assertAlways.isnull(db[outCollName].exists(),
"output collection '" + fullName + "' should not exist");
var options = {
finalize: this.finalizer,
out: {replace: outCollName},
query: {key: {$exists: true}, value: {$exists: true}}
};
var res = db[collName].mapReduce(this.mapper, this.reducer, options);
assertAlways.commandWorked(res);
assertAlways(db[outCollName].drop());
};
return $config;
});
|