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
|
/**
* tests sharding with replica sets
*
* This test is labeled resource intensive because its total io_write is 798MB compared to a median
* of 135MB across all sharding tests in mmapv1.
* @tags: [resource_intensive]
*/
(function() {
'use strict';
var s = new ShardingTest({shards: 3, other: {rs: true, chunkSize: 1, enableBalancer: true}});
s.adminCommand({enablesharding: "test"});
s.ensurePrimaryShard('test', s.shard0.shardName);
s.config.settings.update({_id: "balancer"}, {$set: {_waitForDelete: true}}, true);
var db = s.getDB("test");
var bigString = "X".repeat(256 * 1024);
var insertedBytes = 0;
var num = 0;
// Insert 10 MB of data to result in 10+ chunks
var bulk = db.foo.initializeUnorderedBulkOp();
while (insertedBytes < (10 * 1024 * 1024)) {
bulk.insert({_id: num++, s: bigString, x: Math.random()});
insertedBytes += bigString.length;
}
assert.writeOK(bulk.execute({w: 3}));
assert.commandWorked(s.s.adminCommand({shardcollection: "test.foo", key: {_id: 1}}));
jsTest.log("Waiting for balance to complete");
s.awaitBalance('foo', 'test', 5 * 60 * 1000);
jsTest.log("Stopping balancer");
s.stopBalancer();
jsTest.log("Balancer stopped, checking dbhashes");
s._rs.forEach(function(rsNode) {
rsNode.test.awaitReplication();
var dbHashes = rsNode.test.getHashes("test");
print(rsNode.url + ': ' + tojson(dbHashes));
for (var j = 0; j < dbHashes.slaves.length; j++) {
assert.eq(dbHashes.master.md5,
dbHashes.slaves[j].md5,
"hashes not same for: " + rsNode.url + " slave: " + j);
}
});
assert.eq(num, db.foo.find().count(), "C1");
assert.eq(num, db.foo.find().itcount(), "C2");
assert.eq(num, db.foo.find().sort({_id: 1}).itcount(), "C3");
assert.eq(num, db.foo.find().sort({_id: -1}).itcount(), "C4");
db.foo.ensureIndex({x: 1});
assert.eq(num, db.foo.find().sort({x: 1}).itcount(), "C5");
assert.eq(num, db.foo.find().sort({x: -1}).itcount(), "C6");
s.stop();
})();
|
