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function myprint( x ) {
print( "chaining output: " + x );
}
var replTest = new ReplSetTest({name: 'testSet', nodes: 3});
var nodes = replTest.startSet();
var hostnames = replTest.nodeList();
replTest.initiate(
{
"_id" : "testSet",
"members" : [
{"_id" : 0, "host" : hostnames[0], "priority" : 2},
{"_id" : 1, "host" : hostnames[1]},
{"_id" : 2, "host" : hostnames[2]}
],
"settings" : {
"chainingAllowed" : false
}
}
);
var master = replTest.getMaster();
replTest.awaitReplication();
var breakNetwork = function() {
replTest.bridge();
replTest.partition(0, 2);
master = replTest.getMaster();
};
var checkNoChaining = function() {
master.getDB("test").foo.insert({x:1});
assert.soon(
function() {
return nodes[1].getDB("test").foo.findOne() != null;
}
);
var endTime = (new Date()).getTime()+10000;
while ((new Date()).getTime() < endTime) {
assert(nodes[2].getDB("test").foo.findOne() == null,
'Check that 2 does not catch up');
}
};
var forceSync = function() {
assert.soon(
function() {
var config = nodes[2].getDB("local").system.replset.findOne();
var targetHost = config.members[1].host;
printjson(nodes[2].getDB("admin").runCommand({replSetSyncFrom : targetHost}));
return nodes[2].getDB("test").foo.findOne() != null;
},
'Check force sync still works'
);
};
if (!_isWindows()) {
print("break the network so that node 2 cannot replicate");
breakNetwork();
print("make sure chaining is not happening");
checkNoChaining();
print("check that forcing sync target still works");
forceSync();
var config = master.getDB("local").system.replset.findOne();
assert.eq(false, config.settings.chainingAllowed, tojson(config));
}
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