/**
* Try to establish a connection to server with id sid.
*
* @param sid server id
*/
synchronized void connectOne(long sid) {
if (senderWorkerMap.get(sid) == null) {
InetSocketAddress electionAddr;
if (self.quorumPeers.containsKey(sid)) {
electionAddr = self.quorumPeers.get(sid).electionAddr;
} else {
LOG.warn("Invalid server id: " + sid);
return;
}
try {
if (LOG.isDebugEnabled()) {
LOG.debug("Opening channel to server " + sid);
}
Socket sock = new Socket();
setSockOpts(sock);
sock.connect(self.getView().get(sid).electionAddr, cnxTO);
if (LOG.isDebugEnabled()) {
LOG.debug("Connected to server " + sid);
}
initiateConnection(sock, sid);
} catch (UnresolvedAddressException e) {
// Sun doesn't include the address that causes this
// exception to be thrown, also UAE cannot be wrapped cleanly
// so we log the exception in order to capture this critical
// detail.
LOG.warn("Cannot open channel to " + sid + " at election address " + electionAddr, e);
throw e;
} catch (IOException e) {
LOG.warn("Cannot open channel to " + sid + " at election address " + electionAddr, e);
}
} else {
LOG.debug("There is a connection already for server " + sid);
}
}
/**
* Invokes initiateConnection for testing purposes
*
* @param sid
*/
public void testInitiateConnection(long sid) throws Exception {
if (LOG.isDebugEnabled()) {
LOG.debug("Opening channel to server " + sid);
}
Socket sock = new Socket();
setSockOpts(sock);
sock.connect(self.getVotingView().get(sid).electionAddr, cnxTO);
initiateConnection(sock, sid);
}