Guys,
Thanks for your help with this issue.
Things I changed to make it work:
1. Changed the executeMethod call to take in a config param:
from: httpclient.executeMethod(post);
to: httpclient.executeMethod(manager.getHostConfiguration(),
post); // ensure we are pointing at the right host
2. changed the isValidConnection test to release instead of close.
from: connection.close()
to: connection.releaseConnection(); // not sure if this makes
any difference
I think this was a logical bug on my part. I think what happened was that
the Authentiaction was being attempted against one host, but the
executeMehtod was against another host. Not exactly sure why the
java.net.BindException: Address already in use: connect exception was raised.
Searching through the logs we found some responses
contained the tomcat 401 error - authentiaction required.
Again, thanks for your help.
Regards,
AA
Ortwin Gl�ck <[EMAIL PROTECTED]>
19/05/2005 10:27
Please respond to "HttpClient Project"
To: HttpClient Project <[email protected]>
cc:
Subject: Re: Attempt to implement HA with HttpClient
Oleg, I guess even Windows provides an API function that allocates a
free local port automatically. I don't think that Java handles the
allocation of the local port number in any way.
Odi
Oleg Kalnichevski wrote:
> Alex,
>
> This is just a guess on my part, so take it for what it is worth. The
> JVM randomly assigns a local port for an outbound connection, if the
> port has not been explicitly given. I assume most JVMs make no
> provisions to ensure that under no circumstances the same number gets
> assigned more than once. When under heavy load it is perfectly feasible
> that, while a connection is being established, the same number gets
> assigned to another connection, thus causing BindException.
>
> Consider the following options:
>
> (1) reuse connections as much as possible to minimize odds of having to
> open new sockets
> (2) implement your own algorithm to assign local ports
> (3) simply retry Socket#bind method in case of BindException
>
> Hope this helps
>
> Oleg
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