Files
mongo/jstests/replsets/election_not_blocked.js
2016-03-09 12:18:14 -05:00

47 lines
1.5 KiB
JavaScript

/* Check that the fsyncLock'ed secondary will not veto an election
*
* 1. start a three node set with a hidden, priority:0 node which we will fsyncLock
* 2. do a write to master
* 3. fsyncLock the hidden, priority:0 node
* 4. stepdown master
* 5. wait for the non-fsyncLocked node to become master
*/
(function() {
"use strict";
var name = "electionNotBlocked";
var replTest = new ReplSetTest({name: name, nodes: 3});
var host = replTest.host;
var nodes = replTest.startSet();
var port = replTest.ports;
replTest.initiate({
_id: name,
members: [
{_id: 0, host: host + ":" + port[0], priority: 3},
{_id: 1, host: host + ":" + port[1]},
{_id: 2, host: host + ":" + port[2], hidden: true, priority: 0},
],
// In PV1, a voter writes the last vote to disk before granting the vote,
// so it cannot vote while fsync locked in PV1. Use PV0 explicitly here.
protocolVersion: 0
});
replTest.waitForState(replTest.nodes[0], ReplSetTest.State.PRIMARY, 60 * 1000);
var master = replTest.getPrimary();
// do a write
assert.writeOK(master.getDB("foo").bar.insert({x: 1}, {writeConcern: {w: 3}}));
var slave = replTest.liveNodes.slaves[0];
// lock secondary
var locked = replTest.liveNodes.slaves[1];
locked.getDB("admin").fsyncLock();
// take down master
replTest.stop(0);
replTest.waitForState(slave, ReplSetTest.State.PRIMARY, 90 * 1000);
locked.getDB("admin").fsyncUnlock();
replTest.stopSet();
}());