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
|
// Tests the replSetStepUp command.
load("jstests/replsets/rslib.js");
load('jstests/replsets/libs/election_metrics.js');
load("jstests/libs/write_concern_util.js");
(function() {
"use strict";
var name = "stepup";
var rst = new ReplSetTest({name: name, nodes: 2});
rst.startSet();
rst.initiate();
var primary = rst.getPrimary();
var secondary = rst.getSecondary();
// The default WC is majority and stopServerReplication will prevent satisfying any majority writes.
assert.commandWorked(primary.adminCommand(
{setDefaultRWConcern: 1, defaultWriteConcern: {w: 1}, writeConcern: {w: "majority"}}));
const initialSecondaryStatus = assert.commandWorked(secondary.adminCommand({serverStatus: 1}));
// Step up the primary. Return OK because it's already the primary.
var res = primary.adminCommand({replSetStepUp: 1});
assert.commandWorked(res);
assert.eq(primary, rst.getPrimary());
// Step up the secondary, but it's not eligible to be primary.
// Enable fail point on secondary.
stopServerReplication(secondary);
assert.commandWorked(primary.getDB("test").bar.insert({x: 2}, {writeConcern: {w: 1}}));
res = secondary.adminCommand({replSetStepUp: 1});
assert.commandFailedWithCode(res, ErrorCodes.CommandFailed);
restartServerReplication(secondary);
// Wait for the secondary to catch up by replicating a doc to both nodes.
assert.commandWorked(primary.getDB("test").bar.insert({x: 3}, {writeConcern: {w: "majority"}}));
// Step up the secondary. Retry since the old primary may step down when we try to ask for its
// vote.
let numStepUpCmds = 0;
assert.soonNoExcept(function() {
numStepUpCmds++;
return secondary.adminCommand({replSetStepUp: 1}).ok;
});
// Make sure the step up succeeded.
assert.eq(secondary, rst.getPrimary());
const newSecondaryStatus = assert.commandWorked(secondary.adminCommand({serverStatus: 1}));
// Check that both the 'called' and 'successful' fields of stepUpCmd have been incremented in
// serverStatus, and that they have not been incremented in any of the other election reason
// counters.
verifyServerStatusElectionReasonCounterChange(initialSecondaryStatus.electionMetrics,
newSecondaryStatus.electionMetrics,
"stepUpCmd",
numStepUpCmds, /* expectedNumCalled */
1 /* expectedNumSuccessful */);
verifyServerStatusElectionReasonCounterChange(initialSecondaryStatus.electionMetrics,
newSecondaryStatus.electionMetrics,
"priorityTakeover",
0);
verifyServerStatusElectionReasonCounterChange(initialSecondaryStatus.electionMetrics,
newSecondaryStatus.electionMetrics,
"catchUpTakeover",
0);
verifyServerStatusElectionReasonCounterChange(initialSecondaryStatus.electionMetrics,
newSecondaryStatus.electionMetrics,
"electionTimeout",
0);
verifyServerStatusElectionReasonCounterChange(
initialSecondaryStatus.electionMetrics, newSecondaryStatus.electionMetrics, "freezeTimeout", 0);
rst.stopSet();
})();
|
