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load("jstests/replsets/rslib.js");
doTest = function( signal ) {
var name = "slaveDelay";
var host = getHostName();
var replTest = new ReplSetTest( {name: name, nodes: 3} );
var nodes = replTest.startSet();
/* set slaveDelay to 30 seconds */
var config = replTest.getReplSetConfig();
config.members[2].priority = 0;
config.members[2].slaveDelay = 10;
replTest.initiate(config);
var master = replTest.getMaster().getDB(name);
var slaveConns = replTest.liveNodes.slaves;
var slave = [];
for (var i in slaveConns) {
var d = slaveConns[i].getDB(name);
d.getMongo().setSlaveOk();
slave.push(d);
}
waitForAllMembers(master);
// insert a record
master.foo.insert({x:1});
master.runCommand({getlasterror:1, w:2});
var doc = master.foo.findOne();
assert.eq(doc.x, 1);
// make sure slave has it
var doc = slave[0].foo.findOne();
assert.eq(doc.x, 1);
// make sure delayed slave doesn't have it
assert.eq(slave[1].foo.findOne(), null);
for (var i=0; i<8; i++) {
assert.eq(slave[1].foo.findOne(), null);
sleep(1000);
}
// now delayed slave should have it
assert.soon(function() {
var z = slave[1].foo.findOne();
return z && z.x == 1;
});
/************* Part 2 *******************/
// how about non-initial sync?
for (var i=0; i<100; i++) {
master.foo.insert({_id : i, "foo" : "bar"});
}
master.runCommand({getlasterror:1,w:2});
assert.eq(master.foo.findOne({_id : 99}).foo, "bar");
assert.eq(slave[0].foo.findOne({_id : 99}).foo, "bar");
assert.eq(slave[1].foo.findOne({_id : 99}), null);
for (var i=0; i<8; i++) {
assert.eq(slave[1].foo.findOne({_id:99}), null);
sleep(1000);
}
assert.soon(function() {
var z = slave[1].foo.findOne({_id : 99});
return z && z.foo == "bar";
});
/************* Part 3 *******************/
// how about if we add a new server? will it sync correctly?
var conn = startMongodTest( 31007 , name+"-part3" , 0 , {useHostname : true, replSet : name} );
config = master.getSisterDB("local").system.replset.findOne();
printjson(config);
config.version++;
config.members.push({_id : 3, host : host+":31007",priority:0, slaveDelay:10});
master = reconfig(replTest, config);
master = master.getSisterDB(name);
// it should be all caught up now
master.foo.insert({_id : 123, "x" : "foo"});
master.runCommand({getlasterror:1,w:2});
conn.setSlaveOk();
for (var i=0; i<8; i++) {
assert.eq(conn.getDB(name).foo.findOne({_id:123}), null);
sleep(1000);
}
assert.soon(function() {
var z = conn.getDB(name).foo.findOne({_id:123});
return z != null && z.x == "foo"
});
/************* Part 4 ******************/
print("reconfigure slavedelay");
config.version++;
config.members[3].slaveDelay = 15;
master = reconfig(replTest, config);
master = master.getSisterDB(name);
assert.soon(function() {
return conn.getDB("local").system.replset.findOne().version == config.version;
});
master.foo.insert({_id : 124, "x" : "foo"});
for (var i=0; i<13; i++) {
assert.eq(conn.getDB(name).foo.findOne({_id:124}), null);
sleep(1000);
}
assert.soon(function() {
var z = conn.getDB(name).foo.findOne({_id:124});
return z != null && z.x == "foo"
});
replTest.stopSet();
}
doTest(15);
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