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https://issues.apache.org/jira/browse/SYNAPSE-287?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12594639#action_12594639
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Paul Fremantle commented on SYNAPSE-287:
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I use TCPView on Windows which gives me a graphical view of how many
connections are open:
http://technet.microsoft.com/en-us/sysinternals/bb897437.aspx
> Bad performances
> ----------------
>
> Key: SYNAPSE-287
> URL: https://issues.apache.org/jira/browse/SYNAPSE-287
> Project: Synapse
> Issue Type: Bug
> Components: Transports
> Affects Versions: 1.1.1
> Environment: Windows XP SP2, JDK SUN 1.5.0_15
> Ubuntu Server 6.10, JDK SUN 1.5.0_15
> Reporter: Nicolas KOHUT
> Assignee: Asankha C. Perera
> Priority: Critical
>
> Synapse has some networks problems.
> When it is stressed, is freeze synapse in transport http.
> This behavior is obtained by influencing 2 parameters:
> - the number of competitors access (number of thread).
> - the size of messages sent.
>
> More generally, the higher the speed is high (combination of 2 parameters
> above) synapse freezes more quickly.
> A simple test case (using JMeter):
> - Install distribution synapse-1.1.1 default.
> - Setting up a proxy with sequences in and out empty.
> - Launch a thread (1 single thread is sufficient ...) which calls the proxy
> with a message 6Ko infinite loop. The thread sits 100 ms between each call.
> Synapse must freeze (random) after about 2 000 calls (5 max 000).
> The freeze takes place at a rate of 7 messages (6Ko) per second ...
>
> The only configuration synapse that I could find is the file in the folder
> synapse.properties Conf of synapse.
> This file can affect a pool of thread used by synapse. Increase the various
> parameters of the pool has no impact and does not correct the problem.
> Listed JVM, jconsole indicates that there is no leakage and no memory thread
> in deadlock.
> Finally, the synapse approved http requests with nio-http (I do not know
> more).
> Conclusion:
> The simple test presented above is surprising. Synapse seems not to hold a
> charge very light.
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