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/**
* SERVER-37255: replSetReconfig runs on a node that is concurrently processing an election win.
*/
(function() {
"use strict";
load("jstests/replsets/libs/election_handoff.js");
const rst = ReplSetTest({nodes: 2});
const nodes = rst.startSet();
const config = rst.getReplSetConfig();
// Prevent elections and set heartbeat timeout >> electionHangsBeforeUpdateMemberState.
config.settings = {
electionTimeoutMillis: 12 * 60 * 60 * 1000,
heartbeatTimeoutSecs: 60 * 1000
};
rst.initiate(config);
const incumbent = rst.getPrimary();
const candidate = rst.getSecondary();
jsTestLog("Step down");
assert.commandWorked(candidate.adminCommand({
configureFailPoint: "electionHangsBeforeUpdateMemberState",
mode: "alwaysOn",
data: {waitForMillis: 10 * 1000}
}));
// The incumbent sends replSetStepUp to the candidate for election handoff.
assert.commandWorked(incumbent.adminCommand({
replSetStepDown: ElectionHandoffTest.stepDownPeriodSecs,
secondaryCatchUpPeriodSecs: ElectionHandoffTest.stepDownPeriodSecs / 2
}));
jsTestLog("Wait for candidate to win the election");
checkLog.contains(candidate,
"election succeeded - electionHangsBeforeUpdateMemberState fail point enabled");
jsTestLog("Try to interrupt it with a reconfig");
config.members[nodes.indexOf(candidate)].priority = 2;
config.version++;
assert.commandWorked(candidate.adminCommand({replSetReconfig: config, force: true}));
assert.commandWorked(candidate.adminCommand(
{configureFailPoint: "electionHangsBeforeUpdateMemberState", mode: "off"}));
rst.stopSet();
})();
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