More info :
- When it's stuck, I get 5 connections who are in CLOSE_WAIT state,
the other TCP connections are ETABLISHED
- I'm looking at the WOAdaptor page, and the stuck instance has 14 to
18 active requests, and the other instances don't have any active ones.
Since we upgraded our firewall and we moved two XServes on a
private LAN (the firewall is doing the NAT translation, before it
was a public DMZ), we got instances who hangs for 5 or 10 minutes,
with no reason. The only thing that I found is :
[2007-10-22 10:24:58 EDT] <WorkerThread1> <WOWorkerThread id=1
socket=Socket[addr=/192.168.10.201,port=64467,localport=2001]>
Exception while sending response: java.net.SocketException:
Connection reset
[2007-10-22 11:51:12 EDT] <WorkerThread9> <WOWorkerThread id=9
socket=Socket[addr=/192.168.10.201,port=58180,localport=2001]>
Exception while sending response: java.net.SocketException: Broken
pipe
[2007-10-22 11:51:12 EDT] <WorkerThread10> <WOWorkerThread id=10
socket=Socket[addr=/192.168.10.201,port=58190,localport=2001]>
Exception while sending response: java.net.SocketException: Broken
pipe
[2007-10-22 11:51:12 EDT] <WorkerThread11> <WOWorkerThread id=11
socket=Socket[addr=/192.168.10.201,port=58218,localport=2001]>
Exception while sending response: java.net.SocketException: Broken
pipe
[2007-10-22 11:51:12 EDT] <WorkerThread13> <WOWorkerThread id=13
socket=Socket[addr=/192.168.10.201,port=58237,localport=2001]>
Exception while sending response: java.net.SocketException: Broken
pipe
It's never the same application or the same instance who's hanging,
it's completly random :-/ But it's always the same pattern, no
response from the instance for 5 or 10 minutes, and it start
working again without having to do anything.
We looked at the firewall and the switch logs, and we don't find
any errors. Anyone got this problem.
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