Any semi-sync replication support?

[wenerme]

Like this

BinaryLogClient client = new BinaryLogClient("hostname", 3306, "username", "password");
client.registerEventListener(new EventListener() {

    @Override
    public void onEvent(Event event,Acker ack) {
        ...
        ack.ack();// Ack current event
    }
});
client.connect();

is this possible ?

[shyiko]

Could you please elaborate on why you would what something like this? What is it you are trying to solve? Having read #42 I'll assume you have blocking queue where you store events (received from BinaryLogClient) for further processing and you want to acknowledge each one of them once processing is actually done. If that is the case - a pair of <binlogFilename, binlogPosition> (which can be retrieved at any moment from BinaryLogClient instance) along with each event could probably be used to simulate something similar to your example. But more information would be great.

[wenerme]

Sorry, actually I want to ask the semi-sync replication support.I want to keep up the master status,my slow down the master, but more consistency.

[shyiko]

Oh, I see. Unfortunately it's not supported, BUT it should be fairly easy to implement (process is well documented here). I'm busy on other stuff right now so it might be a while before I get my hands on it. PR would be much appreciated 😁