public NodesFaultDetection(
Settings settings, ThreadPool threadPool, TransportService transportService) {
super(settings);
this.threadPool = threadPool;
this.transportService = transportService;
this.connectOnNetworkDisconnect =
componentSettings.getAsBoolean("connect_on_network_disconnect", true);
this.pingInterval = componentSettings.getAsTime("ping_interval", timeValueSeconds(1));
this.pingRetryTimeout = componentSettings.getAsTime("ping_timeout", timeValueSeconds(30));
this.pingRetryCount = componentSettings.getAsInt("ping_retries", 3);
this.registerConnectionListener =
componentSettings.getAsBoolean("register_connection_listener", true);
logger.debug(
"[node ] uses ping_interval [{}], ping_timeout [{}], ping_retries [{}]",
pingInterval,
pingRetryTimeout,
pingRetryCount);
transportService.registerHandler(PingRequestHandler.ACTION, new PingRequestHandler());
this.connectionListener = new FDConnectionListener();
if (registerConnectionListener) {
transportService.addConnectionListener(connectionListener);
}
}
private void handleTransportDisconnect(DiscoveryNode node) {
if (!latestNodes.nodeExists(node.id())) {
return;
}
NodeFD nodeFD = nodesFD.remove(node);
if (nodeFD == null) {
return;
}
if (!running) {
return;
}
nodeFD.running = false;
if (connectOnNetworkDisconnect) {
try {
transportService.connectToNode(node);
nodesFD.put(node, new NodeFD());
threadPool.schedule(pingInterval, ThreadPool.Names.SAME, new SendPingRequest(node));
} catch (Exception e) {
logger.trace("[node ] [{}] transport disconnected (with verified connect)", node);
notifyNodeFailure(node, "transport disconnected (with verified connect)");
}
} else {
logger.trace("[node ] [{}] transport disconnected", node);
notifyNodeFailure(node, "transport disconnected");
}
}
private void handleTransportDisconnect(DiscoveryNode node) {
synchronized (masterNodeMutex) {
if (!node.equals(this.masterNode)) {
return;
}
if (connectOnNetworkDisconnect) {
try {
transportService.connectToNode(node);
} catch (Exception e) {
logger.trace("[master] [{}] transport disconnected (with verified connect)", masterNode);
notifyMasterFailure(masterNode, "transport disconnected (with verified connect)");
}
} else {
logger.trace("[master] [{}] transport disconnected", node);
notifyMasterFailure(node, "transport disconnected");
}
}
}
private void innerStart(final DiscoveryNode masterNode) {
this.masterNode = masterNode;
this.retryCount = 0;
this.notifiedMasterFailure.set(false);
// try and connect to make sure we are connected
try {
transportService.connectToNode(masterNode);
} catch (final Exception e) {
// notify master failure (which stops also) and bail..
notifyMasterFailure(masterNode, "failed to perform initial connect [" + e.getMessage() + "]");
return;
}
if (masterPinger != null) {
masterPinger.stop();
}
this.masterPinger = new MasterPinger();
// start the ping process
threadPool.schedule(masterPinger, pingInterval);
}
public void close() {
stop();
transportService.removeHandler(PingRequestHandler.ACTION);
transportService.removeConnectionListener(connectionListener);
}
public void close() {
stop("closing");
this.listeners.clear();
transportService.removeConnectionListener(connectionListener);
transportService.removeHandler(MasterPingRequestHandler.ACTION);
}