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
154
155
156
157
158
159
160
161
162
163
164
165
|
/**
* Test that a migration will:
* 1. Ignore multi-statement transaction prepare conflicts in the clone phase, and
* 2. Pick up the changes for prepared transactions in the transfer mods phase.
*
* @tags: [uses_transactions, uses_prepare_transaction]
*/
(function() {
"use strict";
load('jstests/libs/chunk_manipulation_util.js');
load('jstests/sharding/libs/create_sharded_collection_util.js');
load('jstests/sharding/libs/sharded_transactions_helpers.js');
const dbName = "test";
const collName = "user";
const staticMongod = MongoRunner.runMongod({}); // For startParallelOps.
let runTest = function(withStepUp) {
const st = new ShardingTest({shards: {rs0: {nodes: withStepUp ? 2 : 1}, rs1: {nodes: 1}}});
const collection = st.s.getDB(dbName).getCollection(collName);
CreateShardedCollectionUtil.shardCollectionWithChunks(collection, {x: 1}, [
{min: {x: MinKey}, max: {x: 0}, shard: st.shard0.shardName},
{min: {x: 0}, max: {x: 1000}, shard: st.shard0.shardName},
{min: {x: 1000}, max: {x: MaxKey}, shard: st.shard1.shardName},
]);
assert.commandWorked(collection.insert([
{_id: 1, x: -1, note: "move into chunk range being migrated"},
{_id: 2, x: -2, note: "keep out of chunk range being migrated"},
{_id: 3, x: 50, note: "move out of chunk range being migrated"},
{_id: 4, x: 100, note: "keep in chunk range being migrated"},
]));
const lsid = {id: UUID()};
const txnNumber = 0;
let stmtId = 0;
assert.commandWorked(st.s0.getDB(dbName).runCommand({
insert: collName,
documents: [
{_id: 5, x: -1.01, note: "move into chunk range being migrated"},
{_id: 6, x: -2.01, note: "keep out of chunk range being migrated"},
{_id: 7, x: 50.01, note: "move out of chunk range being migrated"},
{_id: 8, x: 100.01, note: "keep in chunk range being migrated"},
],
lsid: lsid,
txnNumber: NumberLong(txnNumber),
stmtId: NumberInt(stmtId++),
startTransaction: true,
autocommit: false,
}));
assert.commandWorked(st.s.getDB(dbName).runCommand({
update: collName,
updates: [
{q: {x: -1}, u: {$set: {x: 5}}},
{q: {x: -2}, u: {$set: {x: -10}}},
{q: {x: 50}, u: {$set: {x: -20}}},
{q: {x: 100}, u: {$set: {x: 500}}},
{q: {x: -1.01}, u: {$set: {x: 5.01}}},
{q: {x: -2.01}, u: {$set: {x: -10.01}}},
{q: {x: 50.01}, u: {$set: {x: -20.01}}},
{q: {x: 100.01}, u: {$set: {x: 500.01}}},
],
lsid: lsid,
txnNumber: NumberLong(txnNumber),
stmtId: NumberInt(stmtId++),
autocommit: false,
}));
const res = assert.commandWorked(st.shard0.getDB(dbName).adminCommand({
prepareTransaction: 1,
lsid: lsid,
txnNumber: NumberLong(txnNumber),
autocommit: false,
writeConcern: {w: "majority"},
}));
let prepareTimestamp = res.prepareTimestamp;
if (withStepUp) {
st.rs0.stepUp(st.rs0.getSecondary());
}
const joinMoveChunk =
moveChunkParallel(staticMongod, st.s.host, {x: 1}, null, 'test.user', st.shard1.shardName);
pauseMigrateAtStep(st.shard1, migrateStepNames.catchup);
// The donor shard only ignores prepare conflicts while scanning over the shard key index. We
// wait for donor shard to have finished buffering the RecordIds into memory from scanning over
// the shard key index before committing the transaction. Notably, the donor shard doesn't
// ignore prepare conflicts when fetching the full contents of the documents during calls to
// _migrateClone.
//
// TODO: SERVER-71028 Remove comment after making changes.
waitForMoveChunkStep(st.shard0, moveChunkStepNames.startedMoveChunk);
assert.commandWorked(
st.shard0.getDB(dbName).adminCommand(Object.assign({
commitTransaction: 1,
lsid: lsid,
txnNumber: NumberLong(txnNumber),
autocommit: false,
},
{commitTimestamp: prepareTimestamp})));
unpauseMigrateAtStep(st.shard1, migrateStepNames.catchup);
joinMoveChunk();
class ArrayCursor {
constructor(arr) {
this.i = 0;
this.arr = arr;
}
hasNext() {
return this.i < this.arr.length;
}
next() {
return this.arr[this.i++];
}
}
const expected = new ArrayCursor([
{_id: 1, x: 5, note: "move into chunk range being migrated"},
{_id: 2, x: -10, note: "keep out of chunk range being migrated"},
{_id: 3, x: -20, note: "move out of chunk range being migrated"},
{_id: 4, x: 500, note: "keep in chunk range being migrated"},
{_id: 5, x: 5.01, note: "move into chunk range being migrated"},
{_id: 6, x: -10.01, note: "keep out of chunk range being migrated"},
{_id: 7, x: -20.01, note: "move out of chunk range being migrated"},
{_id: 8, x: 500.01, note: "keep in chunk range being migrated"},
]);
const diff = ((diff) => {
return {
docsWithDifferentContents: diff.docsWithDifferentContents.map(
({first, second}) => ({expected: first, actual: second})),
docsExtraAfterMigration: diff.docsMissingOnFirst,
docsMissingAfterMigration: diff.docsMissingOnSecond,
};
})(DataConsistencyChecker.getDiff(expected, collection.find().sort({_id: 1, x: 1})));
assert.eq(diff, {
docsWithDifferentContents: [],
docsExtraAfterMigration: [],
docsMissingAfterMigration: [],
});
st.stop();
};
runTest(false);
// TODO: SERVER-71219 Enable test after fixing.
// runTest(true);
MongoRunner.stopMongod(staticMongod);
})();
|
