Re: Help with: org.apache.xmlrpc.XmlRpcException: out of threads
Re: Help with: org.apache.xmlrpc.XmlRpcException: out of threads
- Subject: Re: Help with: org.apache.xmlrpc.XmlRpcException: out of threads
- From: Chuck Hill <email@hidden>
- Date: Fri, 17 Feb 2006 13:23:18 -0800
Hi Helen,
On Feb 17, 2006, at 1:04 PM, Helen He wrote:
On Feb 17, 2006, at 1:55 PM, Chuck Hill wrote:
On Feb 17, 2006, at 8:28 AM, Helen He wrote:
In our WO application, we need to call a XML RPC service to get
course data. Since each call will get data only for one course
and we need to update all the courses in our database, so we made
a loop.
What classes are you using to access the course data? Are you
waiting for a reply before sending the next request?
Here is my coding:
ISSOXMLClient server = new ISSOXMLClient( url, userid,
password);// when this constructor is called, a object of
XmlRpcClientLite is instantiated.
It looks as if ISSOXMLClient is unique to PSU. Perhaps you can ask
the people who wrote it to assist you.
int c = courses.count();
System.out.println("There are total " + c + " courses.");
for(int i = 0; i<c; i++)
{
Course aCourse = (Course)courses.objectAtIndex(i);
String semester = "";
String isisAbbrev = aCourse.isisAbbrev().lookupCode();
String isisNum = aCourse.isisCourseNum();
System.out.println("Call " + i);
result = server.selectISSOCourseMaster(semester, isisAbbrev,
isisNum);
//Then result is stored in a array.
}
But when the service was called continuously about 30 times, an
exception org.apache.xmlrpc.XmlRpcException: out of threads was
thrown. We have tried many ways to solve the problem but still no
good. We need help. Any ideas or suggestions are welcome!
Can you reuse the threads from the previous requests? It sounds
like it perhaps has a pool of threads that need to be reused or
the pool size needs to be increased.
How to reuse the pool of threads and to increase the size of pool?
That likely depends on ISSOXMLClient. org.apache.xmlrpc.XmlRpcClient
has methods that handle a set of threads and (apparently) a pool of
workers. org.apache.xmlrpc.XmlRpcServer does as well. The solution
to your problem probably lies in there and their interaction with
ISSOXMLClient.
Chuck
--
Coming in 2006 - an introduction to web applications using WebObjects
and Xcode http://www.global-village.net/wointro
Practical WebObjects - for developers who want to increase their
overall knowledge of WebObjects or who are trying to solve specific
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