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Java Source Code / Java Documentation » Database JDBC Connection Pool » jTDS » net.sourceforge.jtds.tools 
Source Cross Reference  Class Diagram Java Document (Java Doc) 


net.sourceforge.jtds.tools.TestAllPipeInstancesAreBusy

TestAllPipeInstancesAreBusy
public class TestAllPipeInstancesAreBusy extends TestCase (Code)
JUnit test class to expose the "All pipe instances are busy" error.

Run this class from two or more different computers (Linux and/or Windows) so that multiple requests for the named pipe are hitting the server at the same time. There are many factors that exacerbate the issue, although using SQL Server 6.5, slow (higher latency) TCP/IP connections and adding more computers hitting the server simultaneously seem to be the top three.

See also INF: Multiple Named Pipes Connections May Cause Error 17832 on Microsoft's knowledgebase web site.
author:
   David D. Kilzer
version:
   $Id: TestAllPipeInstancesAreBusy.java,v 1.2 2005/09/06 22:57:08 ddkilzer Exp $




Constructor Summary
public  TestAllPipeInstancesAreBusy(String name)
    

Method Summary
public static  voidmain(String[] args)
    
public  voidtestAllPipeInstancesAreBusy()
     Test method that creates concurrentCount threads, then calls TestAllPipeInstancesAreBusy.connectToDatabaseAndClose() to connect to the database.


Constructor Detail
TestAllPipeInstancesAreBusy
public TestAllPipeInstancesAreBusy(String name)(Code)




Method Detail
main
public static void main(String[] args)(Code)



testAllPipeInstancesAreBusy
public void testAllPipeInstancesAreBusy()(Code)
Test method that creates concurrentCount threads, then calls TestAllPipeInstancesAreBusy.connectToDatabaseAndClose() to connect to the database. This keeps the computer running this method very busy trying to establish connections to the database. One computer is not enough to cause the "All pipe instances are busy" error, though.



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