Some threads blocked on java.net.SocketInputStream.socketRead0

[Oscar]

hi all,

There was a wried thing happened  every other day in one of our
production environment, async-rpc was blocked on socketWrite0  and
never return.
Sally, we can't reproduce the wried thing.

Anybody met this bug before?（we use the TThreadPoolServer in the  server-side)

Today, I did another test. I found some threads of the server blocked
on soketRead0 this time.

1. run the tutorial java server using TThreadPoolServer mode.
2.  java client as follows:
                long start = System.currentTimeMillis();
                final int iteration = 500;
                for (int i = 0; i < iteration; ++i) {
                        try {
                                TSocket s = new TSocket("192.168.120.130", 
9090);
                                s.open();
                        } catch (TException e) {
                                // TODO Auto-generated catch block
                                e.printStackTrace();
                        }
                }
                
System.out.println((System.currentTimeMillis()-start)*1000/iteration);

3.  Run java server on the Linux box.
4. Run java client on Windows XP continuously.

Client process was finished, however, there were 94 established
connection in the server-side.
Jstack result was attached.

Any suggestions?


Thanks,
Oscar