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
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
|
// Confirms basic killOperations execution via mongod and mongos.
// @tags: [
// requires_replication,
// requires_sharding,
// ]
(function() {
"use strict";
load("jstests/libs/parallelTester.js"); // For Thread.
const kDbName = "kill_operations";
const kCollName = "test";
const kNumDocs = 10;
const kBatchSize = 2;
const kOpKey1 = "57710eee-37cf-4c68-a3ac-0b0b900c15d2";
const kOpKey2 = "488f6050-e331-4483-b356-230a41ec477e";
const kOpKey3 = "c3eb12fc-4638-4464-8f51-312724ad1710";
const kOpKey4 = "c7148048-fcf8-4caa-9756-59728052d6a7";
const kOpKey5 = "c7148048-fcf8-4caa-9756-59728052d6a8";
const st = new ShardingTest({shards: 1, rs: {nodes: 1}, mongos: 1});
const shardConn = st.rs0.getPrimary();
function blockFinds() {
assert.commandWorked(shardConn.adminCommand({
setParameter: 1,
internalQueryExecYieldIterations: 1,
}));
assert.commandWorked(shardConn.adminCommand({
configureFailPoint: "setYieldAllLocksHang",
mode: "alwaysOn",
data: {
shouldCheckForInterrupt: true,
nss: kDbName + "." + kCollName,
},
}));
}
function unblockFinds() {
assert.commandWorked(shardConn.adminCommand({
setParameter: 1,
internalQueryExecYieldIterations: 0,
}));
assert.commandWorked(shardConn.adminCommand({
configureFailPoint: "setYieldAllLocksHang",
mode: "off",
}));
}
function checkForOpKey(conn, opKey) {
const uuidOpKey = UUID(opKey);
const ret =
conn.getDB("admin")
.aggregate([{$currentOp: {localOps: true}}, {$match: {operationKey: uuidOpKey}}])
.toArray();
jsTestLog(`Checked currentOp for opKey ${uuidOpKey}: ${tojson(ret)}`);
if (ret.length == 0) {
return false;
}
if (ret.every(op => op.killPending)) {
// CurrentOp actually blocks kills from proceeding.
return false;
}
return true;
}
function killOpKey(conn, opKeys) {
const uuidOpKeys = opKeys.map((strKey) => UUID(strKey));
assert.commandWorked(conn.getDB("admin").runCommand({
_killOperations: 1,
operationKeys: uuidOpKeys,
}));
sleep(1000);
}
function threadRoutine({connStr, dbName, collName, opKey}) {
var client = new Mongo(connStr);
const uuidOpKey = UUID(opKey);
jsTestLog(`Launching find at "${connStr}" with clientOpKey: ${tojson(uuidOpKey)}`);
const ret = client.getDB(dbName).runCommand({
find: collName,
filter: {x: 1},
limit: 1,
clientOperationKey: uuidOpKey,
});
assert.commandFailedWithCode(ret, ErrorCodes.Interrupted);
}
function runTest(conn) {
const db = conn.getDB(kDbName);
const coll = db.getCollection(kCollName);
assert.commandWorked(db.dropDatabase());
let bulk = coll.initializeUnorderedBulkOp();
for (let i = 0; i < kNumDocs; ++i) {
bulk.insert({x: i});
}
assert.commandWorked(bulk.execute());
// Kill one missing opKey
killOpKey(conn, [kOpKey1]);
// Kill multiple missing opKeys
killOpKey(conn, [kOpKey1, kOpKey2, kOpKey3]);
try {
blockFinds();
// Start three finds
let threads = [];
[kOpKey1, kOpKey2, kOpKey3].forEach(key => {
let thread =
new Thread(threadRoutine,
{connStr: conn.host, dbName: kDbName, collName: kCollName, opKey: key});
thread.start();
assert.soon(function() {
return checkForOpKey(conn, key);
}, "Timed out waiting for blocked find", 10000);
threads.push(thread);
});
// Kill the first thread and check the other two
killOpKey(conn, [kOpKey1]);
assert.soon(function() {
return !checkForOpKey(conn, kOpKey1);
}, "Timed out waiting for killed find", 10000);
assert(checkForOpKey(conn, kOpKey2));
assert(checkForOpKey(conn, kOpKey3));
// Kill all three (including the already dead one)
killOpKey(conn, [kOpKey1, kOpKey2, kOpKey3]);
assert.soon(function() {
return !checkForOpKey(conn, kOpKey2) && !checkForOpKey(conn, kOpKey3);
}, "Timed out waiting for killed find", 10000);
unblockFinds();
threads.forEach(thread => {
thread.join();
});
} finally {
unblockFinds();
}
// Test that _killOperations kills the cursors that are associated with the given
// operationKeys, and does not fail if any of the cursors are already closed.
const res4 = assert.commandWorked(db.runCommand({
find: kCollName,
filter: {x: {$gte: 0}},
batchSize: kBatchSize,
clientOperationKey: UUID(kOpKey4),
}));
const cursorId4 = res4.cursor.id;
assert.neq(0, cursorId4);
const res5 = assert.commandWorked(db.runCommand({
find: kCollName,
filter: {x: {$lt: 0}},
batchSize: kBatchSize,
clientOperationKey: UUID(kOpKey5),
}));
const cursorId5 = res5.cursor.id;
assert.eq(0, cursorId5);
killOpKey(conn, [kOpKey4, kOpKey5]);
assert.commandFailedWithCode(db.runCommand({getMore: cursorId4, collection: kCollName}),
ErrorCodes.CursorNotFound);
}
// Test killOp against mongod.
runTest(shardConn);
// Test killOp against mongos.
runTest(st.s);
st.stop();
})();
|
