public void run() {
try {
proxy.slowPing(true); // this would hang until two fast pings happened
done = true;
} catch (IOException e) {
assertTrue("SlowRPC ping exception " + e, false);
}
}
public void testSlowRpc() throws Exception {
System.out.println("Testing Slow RPC");
// create a server with two handlers
Server server = RPC.getServer(new TestImpl(), ADDRESS, 0, 2, false, conf);
TestProtocol proxy = null;
try {
server.start();
InetSocketAddress addr = NetUtils.getConnectAddress(server);
// create a client
proxy = (TestProtocol) RPC.getProxy(TestProtocol.class, TestProtocol.versionID, addr, conf);
SlowRPC slowrpc = new SlowRPC(proxy);
Thread thread = new Thread(slowrpc, "SlowRPC");
thread.start(); // send a slow RPC, which won't return until two fast pings
assertTrue("Slow RPC should not have finished1.", !slowrpc.isDone());
proxy.slowPing(false); // first fast ping
// verify that the first RPC is still stuck
assertTrue("Slow RPC should not have finished2.", !slowrpc.isDone());
proxy.slowPing(false); // second fast ping
// Now the slow ping should be able to be executed
while (!slowrpc.isDone()) {
System.out.println("Waiting for slow RPC to get done.");
try {
Thread.sleep(1000);
} catch (InterruptedException e) {
}
}
} finally {
server.stop();
if (proxy != null) {
RPC.stopProxy(proxy);
}
System.out.println("Down slow rpc testing");
}
}
