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/**
* Test that the 'reconfig' helper function correctly executes reconfigs between configs that have
* the maximum number of allowed voting nodes.
*
* @tags: [
* requires_replication,
* ]
*/
(function() {
"use strict";
load("jstests/replsets/rslib.js");
// Make secondaries unelectable. Add 7 voting nodes, which is the maximum allowed.
const replTest = new ReplSetTest({
nodes: [
{},
{rsConfig: {priority: 0}},
{rsConfig: {priority: 0}},
{rsConfig: {priority: 0}},
{rsConfig: {priority: 0}},
{rsConfig: {priority: 0}},
{rsConfig: {priority: 0}},
{rsConfig: {priority: 0, votes: 0}}
]
});
replTest.startSet();
let conf = replTest.getReplSetConfig();
conf.settings = {
// Speed up config propagation.
heartbeatIntervalMillis: 100,
};
replTest.initiate(conf);
// Start out with config {n0,n1,n2}
let config = replTest.getReplSetConfigFromNode();
let origConfig = Object.assign({}, config);
let [m0, m1, m2, m3, m4, m5, m6, m7] = origConfig.members;
//
// Test max voting constraint.
//
jsTestLog("Test max voting constraint.");
// Test making one node non voting and the other voting.
m6.votes = 0;
m6.priority = 0;
m7.votes = 1;
m7.priority = 1;
config.members = [m0, m1, m2, m3, m4, m5, m6, m7];
reconfig(replTest, config);
assertSameConfigContent(replTest.getReplSetConfigFromNode(), config);
// And test switching the vote back.
m6.votes = 1;
m6.priority = 0;
m7.votes = 0;
m7.priority = 0;
config.members = [m0, m1, m2, m3, m4, m5, m6, m7];
reconfig(replTest, config);
assertSameConfigContent(replTest.getReplSetConfigFromNode(), config);
// Test swapping out a voting member.
m6.votes = 1;
m6.priority = 0;
config.members = [m0, m1, m2, m3, m4, m5, m6];
reconfig(replTest, config);
assertSameConfigContent(replTest.getReplSetConfigFromNode(), config);
m7.votes = 1;
m7.priority = 1;
config.members = [m0, m1, m2, m3, m4, m5, m7];
reconfig(replTest, config);
assertSameConfigContent(replTest.getReplSetConfigFromNode(), config);
// Restore the original config before shutting down.
m7.votes = 0;
m7.priority = 0;
config.members = [m0, m1, m2, m3, m4, m5, m6, m7];
reconfig(replTest, config);
// There is a chance that some nodes haven't finished reconfig, if we directly call stopSet, those
// nodes may fail to answer certain commands and fail the test.
waitAllNodesHaveConfig(replTest, config);
replTest.stopSet();
})();
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