public EpochSSRecovery(SnapshotProvider snapshotProvider, String logPath) throws IOException {
epochFile = new SingleNumberWriter(logPath, EPOCH_FILE_NAME);
localId = ProcessDescriptor.getInstance().localId;
numReplicas = ProcessDescriptor.getInstance().numReplicas;
storage = createStorage();
paxos = createPaxos(snapshotProvider, storage);
dispatcher = paxos.getDispatcher();
}
// Get all instances before <code>nextId</code>
private void startCatchup(final int nextId) {
new RecoveryCatchUp(paxos.getCatchup(), storage)
.recover(
nextId,
new Runnable() {
public void run() {
onRecoveryFinished();
}
});
}
public void run() {
// do not execute recovery mechanism on first run
localEpochNumber = storage.getEpoch()[localId];
if (localEpochNumber == 1) {
onRecoveryFinished();
return;
}
retransmitter = new ActiveRetransmitter(paxos.getNetwork());
logger.info("Sending recovery message");
Network.addMessageListener(MessageType.RecoveryAnswer, new RecoveryAnswerListener());
recoveryRetransmitter = retransmitter.startTransmitting(new Recovery(-1, localEpochNumber));
}