/**
* Starts communication.
*
* @throws IgniteCheckedException If failed.
*/
public void start() throws IgniteCheckedException {
try {
locHost = U.getLocalHost();
} catch (IOException e) {
throw new IgniteCheckedException("Failed to initialize local address.", e);
}
try {
shmemSrv = resetShmemServer();
} catch (IgniteCheckedException e) {
U.warn(log, "Failed to start shared memory communication server.", e);
}
try {
// This method potentially resets local port to the value
// local node was bound to.
nioSrvr = resetNioServer();
} catch (IgniteCheckedException e) {
throw new IgniteCheckedException("Failed to initialize TCP server: " + locHost, e);
}
locProcDesc.address(locHost.getHostAddress());
locProcDesc.sharedMemoryPort(boundTcpShmemPort);
locProcDesc.tcpPort(boundTcpPort);
locIdMsg = new ProcessHandshakeMessage(locProcDesc);
if (shmemSrv != null) {
shmemAcceptWorker = new ShmemAcceptWorker(shmemSrv);
new IgniteThread(shmemAcceptWorker).start();
}
nioSrvr.start();
}
/**
* @param desc Process descriptor.
* @return Client.
* @throws IgniteCheckedException If failed.
*/
@Nullable
protected HadoopCommunicationClient createNioClient(HadoopProcessDescriptor desc)
throws IgniteCheckedException {
assert desc != null;
int shmemPort = desc.sharedMemoryPort();
// If remote node has shared memory server enabled and has the same set of MACs
// then we are likely to run on the same host and shared memory communication could be tried.
if (shmemPort != -1 && locProcDesc.parentNodeId().equals(desc.parentNodeId())) {
try {
return createShmemClient(desc, shmemPort);
} catch (IgniteCheckedException e) {
if (e.hasCause(IpcOutOfSystemResourcesException.class))
// Has cause or is itself the IpcOutOfSystemResourcesException.
LT.warn(log, null, OUT_OF_RESOURCES_TCP_MSG);
else if (log.isDebugEnabled())
log.debug(
"Failed to establish shared memory connection with local hadoop process: " + desc);
}
}
return createTcpClient(desc);
}
