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// test rollback of replica sets
var debugging=0;
w = 0;
function pause(s) {
// for debugging just to keep processes running
print("\nsync1.js: " + s);
if (debugging) {
while (1) {
print("\nsync1.js: " + s);
sleep(4000);
}
}
}
doTest = function (signal) {
var replTest = new ReplSetTest({ name: 'testSet', nodes: 3 });
var nodes = replTest.startSet({ oplogSize: "40" });
sleep(5000);
print("\nsync1.js ********************************************************************** part 0");
replTest.initiate();
// get master
print("\nsync1.js ********************************************************************** part 1");
var master = replTest.getMaster();
print("\nsync1.js ********************************************************************** part 2");
var dbs = [master.getDB("foo")];
for (var i in nodes) {
if (nodes[i] + "" == master + "") {
continue;
}
dbs.push(nodes[i].getDB("foo"));
nodes[i].setSlaveOk();
}
print("\nsync1.js ********************************************************************** part 3");
dbs[0].bar.drop();
print("\nsync1.js ********************************************************************** part 4");
// slow things down a bit
dbs[0].bar.ensureIndex({ x: 1 });
dbs[0].bar.ensureIndex({ y: 1 });
dbs[0].bar.ensureIndex({ z: 1 });
dbs[0].bar.ensureIndex({ w: 1 });
var ok = false;
var inserts = 100000;
print("\nsync1.js ********************************************************************** part 5");
for (var i = 0; i < inserts; i++) {
dbs[0].bar.insert({ x: "foo" + i, y: "bar" + i, z: i, w: "biz baz bar boo" });
}
var status;
do {
sleep(1000);
status = dbs[0].getSisterDB("admin").runCommand({ replSetGetStatus: 1 });
} while (status.members[1].state != 2 && status.members[2].state != 2);
print("\nsync1.js ********************************************************************** part 6");
dbs[0].getSisterDB("admin").runCommand({ replSetTest: 1, blind: true });
print("\nsync1.js ********************************************************************** part 7");
sleep(5000);
var max1;
var max2;
var count = 0;
while (1) {
try {
max1 = dbs[1].bar.find().sort({ z: -1 }).limit(1).next();
max2 = dbs[2].bar.find().sort({ z: -1 }).limit(1).next();
}
catch (e) {
print("\nsync1.js couldn't get max1/max2; retrying " + e);
sleep(2000);
count++;
if (count == 50) {
assert(false, "errored out 50 times");
}
continue;
}
break;
}
// wait for a new master to be elected
sleep(5000);
var newMaster;
print("\nsync1.js ********************************************************************** part 9");
for (var q = 0; q < 10; q++) {
// figure out who is master now
newMaster = replTest.getMaster();
if (newMaster + "" != master + "")
break;
sleep(2000);
if (q > 6) print("sync1.js zzz....");
}
assert(newMaster + "" != master + "", "new master is " + newMaster + ", old master was " + master);
print("\nsync1.js new master is " + newMaster + ", old master was " + master);
print("\nsync1.js ********************************************************************** part 9.1");
count = 0;
countExceptions = 0;
do {
try {
max1 = dbs[1].bar.find().sort({ z: -1 }).limit(1).next();
max2 = dbs[2].bar.find().sort({ z: -1 }).limit(1).next();
}
catch (e) {
if (countExceptions++ > 300) {
print("dbs[1]:");
try {
printjson(dbs[1].isMaster());
printjson(dbs[1].bar.count());
}
catch (e) { print(e); }
print("dbs[2]:");
try {
printjson(dbs[2].isMaster());
printjson(dbs[2].bar.count());
}
catch (e) { print(e); }
assert(false, "sync1.js too many exceptions, failing");
}
print("\nsync1.js: exception querying; will sleep and try again " + e);
sleep(3000);
continue;
}
print("\nsync1.js waiting for match " + count + " " + Date() + " z[1]:" + max1.z + " z[2]:" + max2.z);
// printjson(max1);
// printjson(max2);
sleep(2000);
count++;
if (count == 100) {
pause("fail phase 1");
assert(false, "replsets/\nsync1.js fails timing out");
replTest.stopSet(signal);
return;
}
} while (max1.z != max2.z);
// okay, now they're caught up. We have a max: max1.z
print("\nsync1.js ********************************************************************** part 10");
// now, let's see if rollback works
var result = dbs[0].getSisterDB("admin").runCommand({ replSetTest: 1, blind: false });
dbs[0].getMongo().setSlaveOk();
printjson(result);
sleep(5000);
// now this should resync
print("\nsync1.js ********************************************************************** part 11");
var max0 = null;
count = 0;
do {
try {
max0 = dbs[0].bar.find().sort({ z: -1 }).limit(1).next();
max1 = dbs[1].bar.find().sort({ z: -1 }).limit(1).next();
}
catch (e) {
print("\nsync1.js part 11 exception on bar.find() will sleep and try again " + e);
sleep(2000);
continue;
}
print("part 11");
if (max0) {
print("max0.z:" + max0.z);
print("max1.z:" + max1.z);
}
sleep(2000);
count++;
if (count == 100) {
pause("FAIL part 11");
assert(false, "replsets/\nsync1.js fails timing out");
replTest.stopSet(signal);
return;
}
//print("||||| count:" + count);
//printjson(max0);
} while (!max0 || max0.z != max1.z);
print("\nsync1.js ********************************************************************** part 12");
pause("\nsync1.js success");
replTest.stopSet(signal);
}
if( 1 || debugging ) {
doTest( 15 );
}
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