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
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
|
/**
* Tests the basic indexes operations on sharded time-series collection.
* patterns.
*
* @tags: [
* requires_fcv_51,
* ]
*/
(function() {
load("jstests/core/timeseries/libs/timeseries.js");
load('jstests/libs/analyze_plan.js');
Random.setRandomSeed();
const dbName = 'testDB';
const collName = 'testColl';
const timeField = 'time';
const metaField = 'hostid';
const st = new ShardingTest({shards: 2, rs: {nodes: 2}});
const sDB = st.s.getDB(dbName);
const shard0DB = st.shard0.getDB(dbName);
const shard1DB = st.shard1.getDB(dbName);
if (!TimeseriesTest.shardedtimeseriesCollectionsEnabled(st.shard0)) {
jsTestLog("Skipping test because the sharded time-series collection feature flag is disabled");
st.stop();
return;
}
// Helpers.
let currentId = 0;
function generateId() {
return currentId++;
}
function generateDoc(time, metaValue) {
return TimeseriesTest.generateHosts(1).map((host, index) => Object.assign({}, host, {
_id: generateId(),
[metaField]: metaValue,
[timeField]: ISODate(time),
}))[0];
}
// Shard key on just the time field.
(function timeShardKey() {
const mongosDB = st.s.getDB(dbName);
assert.commandWorked(mongosDB.adminCommand({enableSharding: dbName}));
st.ensurePrimaryShard(dbName, st.shard0.shardName);
// Shard time-series collection.
const shardKey = {[timeField]: 1};
assert.commandWorked(mongosDB.adminCommand({
shardCollection: `${dbName}.${collName}`,
key: shardKey,
timeseries: {timeField, metaField, granularity: "hours"},
}));
// Split the chunks such that primary shard has chunk: [MinKey, 2020-01-01) and other shard has
// chunk [2020-01-01, MaxKey].
let splitPoint = {[`control.min.${timeField}`]: ISODate(`2020-01-01`)};
assert.commandWorked(
mongosDB.adminCommand({split: `${dbName}.system.buckets.${collName}`, middle: splitPoint}));
// Move one of the chunks into the second shard.
const primaryShard = st.getPrimaryShard(dbName);
const otherShard = st.getOther(primaryShard);
assert.commandWorked(mongosDB.adminCommand({
movechunk: `${dbName}.system.buckets.${collName}`,
find: splitPoint,
to: otherShard.name,
_waitForDelete: true,
}));
// Ensure that each shard owns one chunk.
const counts = st.chunkCounts(`system.buckets.${collName}`, dbName);
assert.eq(1, counts[primaryShard.shardName], counts);
assert.eq(1, counts[otherShard.shardName], counts);
const coll = mongosDB.getCollection(collName);
let extraIndexes = [];
let extraBucketIndexes = [];
if (TimeseriesTest.timeseriesScalabilityImprovementsEnabled(st.shard0)) {
// When enabled, the {meta: 1, time: 1} index gets built by default on the time-series
// bucket collection.
extraIndexes.push({[metaField]: 1, [timeField]: 1});
extraBucketIndexes.push({"meta": 1, "control.min.time": 1, "control.max.time": 1});
}
for (let i = 0; i < 2; i++) {
assert.commandWorked(coll.insert(generateDoc("2019-11-11", -1)));
assert.commandWorked(coll.insert(generateDoc("2019-12-31", -1)));
assert.commandWorked(coll.insert(generateDoc("2020-01-21", i)));
assert.commandWorked(coll.insert(generateDoc("2020-11-31", 1)));
}
assert.commandWorked(coll.createIndex({[metaField]: 1}));
let plan = coll.find({[metaField]: 0}).explain();
assert.eq(getAggPlanStages(plan, "IXSCAN").length, 2, plan);
const subField1 = `${metaField}.subField1`;
const subField2 = `${metaField}.subField2`;
assert.commandWorked(coll.createIndex({[subField1]: 1}));
assert.commandWorked(coll.createIndex({[subField2]: 1}));
const listIndexesOutput = assert.commandWorked(coll.runCommand({listIndexes: coll.getName()}));
assert.eq(coll.getFullName(), listIndexesOutput.cursor.ns, listIndexesOutput);
let indexKeys = listIndexesOutput.cursor.firstBatch.map(x => x.key);
assert.sameMembers(
[{[subField1]: 1}, {[subField2]: 1}, {[timeField]: 1}, {[metaField]: 1}].concat(
extraIndexes),
indexKeys);
assert.commandWorked(coll.dropIndex({[subField2]: 1}));
indexKeys = coll.getIndexes().map(x => x.key);
assert.sameMembers([{[subField1]: 1}, {[timeField]: 1}, {[metaField]: 1}].concat(extraIndexes),
indexKeys);
plan = coll.find({[metaField]: 0}).explain();
assert.eq(getAggPlanStages(plan, "IXSCAN").length, 2, plan);
assert.commandWorked(coll.dropIndex({[metaField]: 1}));
indexKeys = coll.getIndexes().map(x => x.key);
assert.sameMembers([{[subField1]: 1}, {[timeField]: 1}].concat(extraIndexes), indexKeys);
plan = coll.find({[subField2]: 0}).explain();
assert.eq(getAggPlanStages(plan, "COLLSCAN").length, 2, plan);
// Verify that running the commands on the buckets collection should work.
const bucketsColl = mongosDB.getCollection(`system.buckets.${collName}`);
const outputOnBucketsColl =
assert.commandWorked(bucketsColl.runCommand({listIndexes: bucketsColl.getName()}));
assert.eq(bucketsColl.getFullName(), outputOnBucketsColl.cursor.ns, outputOnBucketsColl);
assert.commandWorked(bucketsColl.dropIndex({'meta.subField1': 1}));
indexKeys = bucketsColl.getIndexes().map(x => x.key);
assert.sameMembers([{'control.min.time': 1}].concat(extraBucketIndexes), indexKeys);
assert.commandWorked(bucketsColl.createIndex({'meta.subField2': 1}));
indexKeys = bucketsColl.getIndexes().map(x => x.key);
assert.sameMembers([{'control.min.time': 1}, {'meta.subField2': 1}].concat(extraBucketIndexes),
indexKeys);
assert(coll.drop());
})();
st.stop();
})();
|
