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/**
* This test sets up a node to have a 'newlyAdded' field, then lets it exit initial sync while
* racing with a user initiated reconfig. The test verifies that there are no adverse effects (other
* than one party having to retry).
*
* @tags: [
* requires_fcv_47,
* ]
*/
(function() {
"use strict";
load("jstests/libs/fail_point_util.js");
load('jstests/replsets/rslib.js');
const testName = jsTestName();
const dbName = "testdb";
const collName = "testcoll";
const rst = new ReplSetTest({
name: testName,
nodes: 1,
settings: {chainingAllowed: false},
});
rst.startSet();
rst.initiateWithHighElectionTimeout();
const primary = rst.getPrimary();
const primaryDb = primary.getDB(dbName);
const primaryColl = primaryDb.getCollection(collName);
assert.commandWorked(primaryColl.insert({"starting": "doc"}));
jsTestLog("Adding a new node to the replica set");
const secondary = rst.add({
rsConfig: {priority: 0},
setParameter: {
'failpoint.initialSyncHangBeforeFinish': tojson({mode: 'alwaysOn'}),
'numInitialSyncAttempts': 1,
}
});
rst.reInitiate();
assert.commandWorked(secondary.adminCommand({
waitForFailPoint: "initialSyncHangBeforeFinish",
timesEntered: 1,
maxTimeMS: kDefaultWaitForFailPointTimeout
}));
jsTestLog("Checking that the 'newlyAdded' field is set on the new node");
assert(isMemberNewlyAdded(primary, 1));
jsTestLog("Checking vote counts while the secondary is in initial sync");
assertVoteCount(primary, {
votingMembersCount: 1,
majorityVoteCount: 1,
writableVotingMembersCount: 1,
writeMajorityCount: 1,
totalMembersCount: 2
});
const baseConfig = rst.getReplSetConfigFromNode();
jsTestLog("Doing a reconfig while exiting initial sync");
const userReconfigFn = function() {
const sleepAmount = Math.floor(Math.random() * 3000); // 0-3000 ms
print("Sleeping for " + sleepAmount + " milliseconds");
sleep(sleepAmount);
const res = rs.add({priority: 0, votes: 0, host: "abcde:12345"});
assert.neq("", res);
assert.commandWorked(res);
};
const waitForUserReconfig = startParallelShell(userReconfigFn, primary.port);
assert.commandWorked(
secondary.adminCommand({configureFailPoint: "initialSyncHangBeforeFinish", mode: "off"}));
waitForUserReconfig();
jsTestLog("Waiting for 'newlyAdded' field to be removed");
rst.waitForState(secondary, ReplSetTest.State.SECONDARY);
waitForNewlyAddedRemovalForNodeToBeCommitted(primary, 1);
assertVoteCount(primary, {
votingMembersCount: 2,
majorityVoteCount: 2,
writableVotingMembersCount: 2,
writeMajorityCount: 2,
totalMembersCount: 3,
});
jsTestLog("Making sure we can see the results of the user reconfig");
const modifiedConfig = rst.getReplSetConfigFromNode();
assert.eq(3, modifiedConfig.members.length, () => [tojson(baseConfig), tojson(modifiedConfig)]);
assert.eq("abcde:12345",
modifiedConfig.members[2].host,
() => [tojson(baseConfig), tojson(modifiedConfig)]);
jsTestLog("Making sure set can accept w:2 writes");
assert.commandWorked(primaryColl.insert({"steady": "state"}, {writeConcern: {w: 2}}));
rst.awaitReplication();
rst.stopSet();
})();
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