Hi Gregory
We are currently using the Synapse 1.0 release. Our Synapse Machine's
OS is Windows Server 2003 R2 (Enterprise Edition) SP1 with a JDK
1.6.0_02-b06.
We haven't tested NIO code with JDK 1.6.x but only with 1.5.x.. from
testing carried out by me on Windows environments, the NIO
implementation on Windows has some issues, and I would strongly suggest
using Linux as an alternative. You could also perform some of the tuning
suggested in http://wso2.org/library/1721 at the bottom.
Both Tomcat Servers run on a Windows 2000 (5.00.2195) OS with JDK
1.5.0_06-b05 and JDK 1.5.0_07-b03. The version of Axis2 is 1.1.1 and
of Tomcat is 5.5.20. As you already could have guessed, these servers
run on different physical machines, but they are directly connected to
each other (our Synapse server machine has multiple network cards).
You do not state your client environment, I am specifically interested
to see if it sends HTTP 1.0 or 1.1 requests to Synapse, and if
Keepalives are used
We performed the new requested tests (simple message forwarding to one
of our Tomcat machines). We noticed the same disturbing behaviour
(even with a dropped load - our Tomcat server couldn't cope with the
same throughput as with the other tests). The client made 607
invocations and only received 304 correct answers returned to the client.
So are you saying that a direct client to Tomcat test has issues?
We are going to test our Synapse broker on a Linux machine (I've read
somewhere that there might be some concurrency related problems with
Windows and Java's NIO). I let you know what the outcome is.
This is great and I will look forward to your results. Meanwhile, if you
can help me reproduce this test with the Apache Bench Java clone (that
supports chunking, SSL etc - check the link I gave earlier for this) and
Synapse, I can help you find the issue. You may send any confidential
information privately to me if you please
asankha
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