Really?  So if threads 0 thru 9 are running, and 0-8 finish, the remaining 
requests in the queue (is there even a queue?) won't make use of 0-8?

It's fine if they sit there waiting for 9 to finish, but in this case, even 
after 9 finishes, additional requests aren't being executed.  If > 10 requests 
are sent to it, the server throws an exception, and only executes the first 10. 
 Also, sometimes it isn't the 10th request that is the slowest, it's some other 
one (the 2nd or whatever).

Sorry, I'm confused because your answer makes it sound like what I'm seeing 
shouldn't be happening. :/

Thanks,
Diane
________________________________________
From: Ben Craig [[email protected]]
Sent: Friday, April 05, 2013 3:55 PM
To: [email protected]
Subject: Re: Question about Multithreaded Thrift Servers

The threaded server uses one thread per connection.  It does not get a
request, and have an available thread process the request.  This means
that if you send 20 requests, and the 10th request takes a long time to
process, the last ten requests will be stalled.



From:   "Napolitano, Diane" <[email protected]>
To:     "[email protected]" <[email protected]>,
Date:   04/05/2013 02:44 PM
Subject:        Question about Multithreaded Thrift Servers



Hello, I have a Thrift server (just "NameOfServer" here) written in Java
which is initialized with the following inside of an inner class called
ServerThread:

TThreadPoolServer.Args args = new TThreadPoolServer.Args(serverTransport);
args.maxWorkerThreads(10);
args.processor(processor);
TServer server = new TThreadPoolServer(args);
server.serve();

Then NameOfServer has two objects:
public static NameOfServerHandler handler;
public static NameOfServer.Processor processor;

And then a ServerThread object is created in my server's main:
handler = new NameOfServerHandler();
processor = new NameOfServer.Processor(handler);
Runnable r = new ServerThread(processor, portNum);
new Thread(r).start();

My question is: am I doing this right?  Because when I send more than ten
requests to the server, it throws an exception and dies, and all requests
beyond the first 10 are stalled.  Unless I'm misunderstanding threads,
Java, and everything else, aren't these additional requests supposed to be
queued and then served when one of the 10 threads becomes available?

If you need more code/context than this, definitely let me know.

Thanks,
Diane


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