Hi,

we have got a problem for some months now that we can’t find a solution for. 

The situation: We have an application that is running on four different 
application servers (with quite some instances on each server, servers running 
on linux) controlled by monitors running on two of those servers (each monitor 
is responsible for 2 servers). The wotaskd is running on each server as well. 
Finally we got two web servers (Apache 2.0.49). We use Java 1.4.2, WebObjects 
5.2.3.

The problem: Several times a day on each of the instances we got session 
timeouts (SessionRestorationErrors). But the sessions don’t time out, the 
requests are placed on the wrong instances. Of course, the session ids are not 
known on those wrong instances so the SessionRestorationErrors take place. 
What we have done so far: we tried setting send timeout, receive timeout and 
connect timeout in “Load Balancing and Adaptor Settings” to values of one 
minute and above without any success. We are logging the woadaptor now. It 
seems we have got some kind of connection trouble:

Error: couldn't connect to 10.0.0.40 (1085): Operation now in progress
Error: Error connecting to server 10.0.0.40
Warn: Unable to find instance 55. Attempting to select another.
Warn: Unable to find instance 55. Attempting to select another.
Warn: Unable to find instance 60. Attempting to select another.

But 10.0.0.40:1085 is up and running. This error message is just been thrown 
about every 10 or 20 minutes and not all the time. 
We found some similar problems in mailing lists but none was helpful so far. 
Any suggestions how we can get rid of this problem? Thanks in advance.

Ingo
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