Multiple httpclient sessions and hanging??

[Jan Gonsalves]

I'm seeing a problem where I have two very similar HttpClient apps 
running in different JVMs.  I ran App1 with Beta1 for 20+ ours straight 
and it just chugged along and did it's thing.  I started App2 with 
Alpha3 this morning and the minute it came up, App1 hung.  Definition of 
Hung: "In the middle of downloading information, often from a file on a 
foriegn FTP server using a ZipInputStream, program never returns from 
reading stream. How ever, sometimes it has "hung" when doing a 
ExecuteMethod cal."  We have seen cases where App1 has been hanging and 
we were hoping it was some timeout or something that had been fixed in 
Beta 1.  I changed the second app to use BEta1 and ran them together for 
a 5+ hours and just recently noticed App1 hung again.  It only seems to 
happen when App2 is running on the same machine, I never ran into this 
while in development because App2 was developed on a separate machine. 

The thing that kills me is App2 never has this issue.  Some application 
notes:
Incremental Updates - Both Apps run for a couple minutes and then sleep 
for 10.  While sleeping no connections are kept open.
App1 reads zip files on a FTP server, App2 reads input streams from the 
response body
App1 performs signifigantly less POST/GET calls than App2.  App1 
requests information to be created and then put on the FTP server, Files 
are read from there and not downloaded(Most, not all hangs happen here), 
App2 requests information and it's sent via the response body.

I know this is vague, I'm just wondering if anyone knows of problems 
running multiple HttpClient Apps.  I'm going to run with the log on from 
now on, but it can take so long for the problem to occur it fills up 
disk space pretty rapidly.

Any ideas would be greatly appreciated. 

Jan Gonsalves

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