@BeforeClass
public static void initialization() {
boolean enableSslLbPort = false;
boolean terminateTLSTraffic = true;
// start lb
balancer = new BalancerRunner();
balancer.start(ConfigInit.getLbSpliterProperties(enableSslLbPort, terminateTLSTraffic));
// start servers
serverArray = new DefaultSmppServer[serverNumbers];
serverHandlerArray = new DefaultSmppServerHandler[serverNumbers];
for (int i = 0; i < serverNumbers; i++) {
serverHandlerArray[i] = new DefaultSmppServerHandler();
serverArray[i] =
new DefaultSmppServer(
ConfigInit.getSmppServerConfiguration(i, false),
serverHandlerArray[i],
executor,
monitorExecutor);
logger.info("Starting SMPP server...");
try {
serverArray[i].start();
} catch (SmppChannelException e) {
logger.info("SMPP server does not started");
e.printStackTrace();
}
logger.info("SMPP server started");
}
try {
Thread.sleep(2000);
} catch (InterruptedException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
@Test
public void serverNotEnoughWorkerThreadsCausesBindTimerToCloseChannel() throws Exception {
BlockThreadSmppServerHandler serverHandler0 = new BlockThreadSmppServerHandler();
SmppServerConfiguration configuration = createSmppServerConfiguration();
// permit up to 0.5 seconds to bind
configuration.setBindTimeout(500);
DefaultSmppServer server0 = new DefaultSmppServer(configuration, serverHandler0);
server0.start();
try {
// there is an issue without telling the server how many worker threads
// to create beforehand with starvation only Runtime.getRuntime().availableProcessors()
// worker threads are created by default!!! (yikes)
int workersToStarveWith = Runtime.getRuntime().availableProcessors();
// initiate bind requests on all sessions we care about -- this should
// technicaly "starve" the server of worker threads since they'll all
// be blocked in a Thread.sleep
for (int i = 0; i < workersToStarveWith; i++) {
DefaultSmppClient client0 = new DefaultSmppClient();
SmppSessionConfiguration sessionConfig0 = createDefaultConfiguration();
sessionConfig0.setName("WorkerTest.Session." + i);
// don't use default method of binding, connect the socket first
DefaultSmppSession session0 =
client0.doOpen(sessionConfig0, new DefaultSmppSessionHandler());
// try to bind and execute a bind request and wait for a bind response
BaseBind bindRequest = client0.createBindRequest(sessionConfig0);
try {
// just send the request without caring if it succeeds
session0.sendRequestPdu(bindRequest, 2000, false);
} catch (SmppChannelException e) {
System.out.println(e.getMessage());
}
}
// now try to bind normally -- since all previous workers are "starved"
// this should fail to bind and the socket closed by the "BindTimer"
DefaultSmppClient client0 = new DefaultSmppClient();
SmppSessionConfiguration sessionConfig0 = createDefaultConfiguration();
sessionConfig0.setName("WorkerTestChannelClosed.Session");
sessionConfig0.setBindTimeout(750);
try {
client0.bind(sessionConfig0);
Assert.fail();
} catch (SmppTimeoutException e) {
// the BindTimer should end up closing the connection since the
// worker thread were "starved"
logger.debug("Correctly received SmppChannelException during bind");
}
} finally {
Thread.sleep(10500);
Assert.assertEquals(0, server0.getChannels().size());
Assert.assertEquals(3, server0.getCounters().getBindTimeouts());
server0.destroy();
}
}
