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// Ensure writes do not prevent a node from Stepping down
// 1. Start up a 3 node set (1 arbiter).
// 2. Stop replication on the SECONDARY using a fail point.
// 3. Do one write and then spin up a second shell which asks the PRIMARY to StepDown.
// 4. Once StepDown has begun, try to do a write and ensure that it fails with NotMaster
// 5. Restart replication on the SECONDARY.
// 6. Wait for PRIMARY to StepDown.
(function() {
"use strict";
load("jstests/libs/write_concern_util.js");
var name = "stepDownWithLongWait";
var replSet = new ReplSetTest({name: name, nodes: 3});
var nodes = replSet.nodeList();
replSet.startSet();
replSet.initiate({
"_id": name,
"members": [
{"_id": 0, "host": nodes[0], "priority": 3},
{"_id": 1, "host": nodes[1]},
{"_id": 2, "host": nodes[2], "arbiterOnly": true}
]
});
replSet.waitForState(replSet.nodes[0], ReplSetTest.State.PRIMARY);
var primary = replSet.getPrimary();
var secondary = replSet.getSecondary();
jsTestLog('Disable replication on the SECONDARY ' + secondary.host);
stopServerReplication(secondary);
jsTestLog("do a write then ask the PRIMARY to stepdown");
var options = {writeConcern: {w: 1, wtimeout: ReplSetTest.kDefaultTimeoutMS}};
assert.writeOK(primary.getDB(name).foo.insert({x: 1}, options));
var stepDownCmd = function() {
assert.commandWorked(
db.adminCommand({replSetStepDown: 60, secondaryCatchUpPeriodSecs: 60}));
};
var stepDowner = startParallelShell(stepDownCmd, primary.port);
assert.soon(function() {
var res = primary.getDB('admin').currentOp(true);
for (var entry in res.inprog) {
if (res.inprog[entry]["command"] &&
res.inprog[entry]["command"]["replSetStepDown"] === 60) {
return true;
}
}
printjson(res);
return false;
}, "No pending stepdown command found");
jsTestLog("Ensure that writes start failing with NotMaster errors");
assert.soonNoExcept(function() {
assert.commandFailedWithCode(primary.getDB(name).foo.insert({x: 2}), ErrorCodes.NotMaster);
return true;
});
jsTestLog("Ensure that even though writes are failing with NotMaster, we still report " +
"ourselves as PRIMARY");
assert.eq(ReplSetTest.State.PRIMARY, primary.adminCommand('replSetGetStatus').myState);
jsTestLog('Enable replication on the SECONDARY ' + secondary.host);
restartServerReplication(secondary);
jsTestLog("Wait for PRIMARY " + primary.host + " to completely step down.");
replSet.waitForState(primary, ReplSetTest.State.SECONDARY);
var exitCode = stepDowner();
jsTestLog("Wait for SECONDARY " + secondary.host + " to become PRIMARY");
replSet.waitForState(secondary, ReplSetTest.State.PRIMARY);
replSet.stopSet();
})();
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