summaryrefslogtreecommitdiff
path: root/jstests/slow1/replsets_priority1.js
blob: ed72b92e96072eb200f247955352f85909ff3b43 (plain)
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
// come up with random priorities and make sure that the right member gets
// elected. then kill that member and make sure the next one gets elected.

(function() {

"use strict";

load("jstests/replsets/rslib.js");

var rs = new ReplSetTest({name: 'testSet', nodes: 3, nodeOptions: {verbose: 2}});
var nodes = rs.startSet();
rs.initiate();

var primary = rs.getPrimary();

var everyoneOkSoon = function() {
    var status;
    assert.soon(function() {
        var ok = true;
        status = primary.adminCommand({replSetGetStatus: 1});

        if (!status.members) {
            return false;
        }

        for (var i in status.members) {
            if (status.members[i].health == 0) {
                continue;
            }
            ok &= status.members[i].state == 1 || status.members[i].state == 2;
        }
        return ok;
    }, tojson(status));
};

var checkPrimaryIs = function(node) {
    print("nreplsets_priority1.js checkPrimaryIs(" + node.host + ")");

    var status;

    assert.soon(function() {
        var ok = true;

        try {
            status = primary.adminCommand({replSetGetStatus: 1});
        } catch (e) {
            print(e);
            print("nreplsets_priority1.js checkPrimaryIs reconnecting");
            reconnect(primary);
            status = primary.adminCommand({replSetGetStatus: 1});
        }

        var str = "goal: " + node.host + "==1 states: ";
        if (!status || !status.members) {
            return false;
        }
        status.members.forEach(function(m) {
            str += m.name + ": " + m.state + " ";

            if (m.name == node.host) {
                ok &= m.state == 1;
            } else {
                ok &= m.state != 1 || (m.state == 1 && m.health == 0);
            }
        });
        print();
        print(str);
        print();

        occasionally(function() {
            print("\nstatus:");
            printjson(status);
            print();
        }, 15);

        return ok;
    }, node.host + '==1', 240000, 1000);

    everyoneOkSoon();
};

everyoneOkSoon();

jsTestLog("replsets_priority1.js initial sync");

// intial sync
primary.getDB("foo").bar.insert({x: 1});
rs.awaitReplication();

jsTestLog("replsets_priority1.js starting loop");

var n = 5;
for (var i = 0; i < n; i++) {
    jsTestLog("Round " + i + ": FIGHT!");

    var max = null;
    var second = null;
    primary = rs.getPrimary();
    var config = primary.getDB("local").system.replset.findOne();

    var version = config.version;
    config.version++;

    for (var j = 0; j < config.members.length; j++) {
        var priority = Math.random() * 100;
        print("random priority : " + priority);
        config.members[j].priority = priority;

        if (!max || priority > max.priority) {
            max = config.members[j];
        }
    }

    for (var j = 0; j < config.members.length; j++) {
        if (config.members[j] == max) {
            continue;
        }
        if (!second || config.members[j].priority > second.priority) {
            second = config.members[j];
        }
    }

    jsTestLog("replsets_priority1.js max is " + max.host + " with priority " + max.priority +
              ", reconfiguring on " + primary.host);

    assert.soon(() => isConfigCommitted(primary));
    assert.commandWorked(primary.adminCommand({replSetReconfig: config}));

    jsTestLog("replsets_priority1.js wait for 2 secondaries");

    assert.soon(function() {
        rs.getPrimary();
        return rs.getSecondaries().length == 2;
    }, "2 secondaries");

    jsTestLog("replsets_priority1.js wait for new config version " + config.version);

    assert.soon(function() {
        var versions = [0, 0];
        var secondaries = rs.getSecondaries();
        secondaries[0].setSecondaryOk();
        versions[0] = secondaries[0].getDB("local").system.replset.findOne().version;
        secondaries[1].setSecondaryOk();
        versions[1] = secondaries[1].getDB("local").system.replset.findOne().version;
        return versions[0] == config.version && versions[1] == config.version;
    });

    jsTestLog("replsets_priority1.js awaitReplication");

    // the reconfiguration needs to be replicated! the hb sends it out
    // separately from the repl
    rs.awaitReplication();

    jsTestLog("reconfigured.  Checking statuses.");

    checkPrimaryIs(max);

    // Wait for election oplog entry to be replicated, to avoid rollbacks later on.
    rs.awaitReplication();

    jsTestLog("rs.stop");

    rs.stop(max._id);

    primary = rs.getPrimary();

    jsTestLog("killed max primary.  Checking statuses.");

    jsTestLog("second is " + second.host + " with priority " + second.priority);
    checkPrimaryIs(second);

    // Wait for election oplog entry to be replicated, to avoid rollbacks later on.
    let liveSecondaries = rs.nodes.filter(function(node) {
        return node.host !== max.host && node.host !== second.host;
    });
    rs.awaitReplication(null, null, liveSecondaries);

    jsTestLog("restart max " + max._id);

    rs.restart(max._id);
    primary = rs.getPrimary();

    jsTestLog("max restarted.  Checking statuses.");
    checkPrimaryIs(max);

    // Wait for election oplog entry to be replicated, to avoid rollbacks later on.
    rs.awaitReplication();
}

rs.stopSet();
})();