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
|
//
// Tests that migration failures before and after commit correctly roll back
// when possible
//
(function() {
'use strict';
var st = new ShardingTest({shards: 2, mongos: 1});
var mongos = st.s0;
var admin = mongos.getDB("admin");
var shards = mongos.getCollection("config.shards").find().toArray();
var coll = mongos.getCollection("foo.bar");
assert(admin.runCommand({enableSharding: coll.getDB() + ""}).ok);
printjson(admin.runCommand({movePrimary: coll.getDB() + "", to: shards[0]._id}));
assert(admin.runCommand({shardCollection: coll + "", key: {_id: 1}}).ok);
assert(admin.runCommand({split: coll + "", middle: {_id: 0}}).ok);
st.printShardingStatus();
jsTest.log("Testing failed migrations...");
var version = null;
var failVersion = null;
// failMigrationCommit
assert.commandWorked(st.shard0.getDB("admin").runCommand(
{configureFailPoint: 'failMigrationCommit', mode: 'alwaysOn'}));
version = st.shard0.getDB("admin").runCommand({getShardVersion: coll.toString()});
assert.commandFailed(
admin.runCommand({moveChunk: coll + "", find: {_id: 0}, to: shards[1]._id}));
failVersion = st.shard0.getDB("admin").runCommand({getShardVersion: coll.toString()});
assert.commandWorked(st.shard0.getDB("admin").runCommand(
{configureFailPoint: 'failMigrationCommit', mode: 'off'}));
// failApplyChunkOps and failCommitMigrationCommand
assert.commandWorked(st.shard0.getDB("admin").runCommand(
{configureFailPoint: 'failApplyChunkOps', mode: 'alwaysOn'}));
assert.commandWorked(st.shard0.getDB("admin").runCommand(
{configureFailPoint: 'failCommitMigrationCommand', mode: 'alwaysOn'}));
version = st.shard0.getDB("admin").runCommand({getShardVersion: coll.toString()});
assert.commandWorked(
admin.runCommand({moveChunk: coll + "", find: {_id: 0}, to: shards[1]._id}));
failVersion = st.shard0.getDB("admin").runCommand({getShardVersion: coll.toString()});
assert.neq(version.global, failVersion.global);
assert.commandWorked(st.shard0.getDB("admin").runCommand(
{configureFailPoint: 'failApplyChunkOps', mode: 'off'}));
assert.commandWorked(st.shard0.getDB("admin").runCommand(
{configureFailPoint: 'failCommitMigrationCommand', mode: 'off'}));
st.stop();
})();
|
