Logo 
Search:

Java Forum

Ask Question   UnAnswered
Home » Forum » Java       RSS Feeds

CORBA slow at startup

  Asked By: Jeff    Date: Jan 09    Category: Java    Views: 911
  

I have a CORBA client running under Linux and a CORBA server running
on Win2k. Both systems have SUN's Java 1.4.2_03 on them. The server
is persistant and it is registered and started using servertool. The
problem that I am having is that the client seems to pause for a long
time(5 - 10 sec) when it calls orb.string_to_object(). ie.

Client:

// Create and initialize the ORB.
ORB orb = ORB.init(args, null);


logger.info("Retrieving ORB instance.");


org.omg.CORBA.Object obj = orb.string_to_object(corbaUrl);


logger.info("Narrowing...");
Orange impl = OrangeHelper.narrow(obj);

where:

args = "-ORBInitialPort 2250 -ORBInitialHost 192.168.1.112"
corbaUrl = "corbaname::192.168.1.112:2249#Orange"

I start the client and it prints "Retrieving ORB instance." and then
pauses for about 10 seconds. After it gets past that point the actual
ORB function calls are relatively quick. I hope this is not a Windows
problem.

Share: 

 

1 Answer Found

 
Answer #1    Answered By: Landra Schmidt     Answered On: Jan 09

Well I guess I will answer my own question since I figured it out this
morning. :)

Turns out that the Win2k box that was running  the CORBA orbd server
also has a DNS running on it. And when the DNS was unable to do a
reverse lookup on the CORBA client  PC it hung. After adding a reverse
lookup for the client PC into the Win2k DNS the string_to_object()
returned instantly everytime. The string_to_object() must be forcing
a reverse lookup on the client that is connecting to it.

 
Didn't find what you were looking for? Find more on CORBA slow at startup Or get search suggestion and latest updates.




Tagged: