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https://issues.apache.org/jira/browse/DIRMINA-532?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Roger Kapsi closed DIRMINA-532.
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Resolution: Invalid
Turns out it was a bad combination of locking, logging and a general slowness
of the small Amazon EC2 instances. I don't know why MINA 1.1.6 and 2 react so
differently but after resolving the issues and giving it a shot on the extra
large boxes everything went very smoothly.
> Slow writing compared to MINA 1.1.x
> -----------------------------------
>
> Key: DIRMINA-532
> URL: https://issues.apache.org/jira/browse/DIRMINA-532
> Project: MINA
> Issue Type: Bug
> Components: Core
> Affects Versions: 2.0.0-M2
> Environment: Linux with 2.6.16-xenU Kernel, Java 1.6.0_02-b05, 18
> small instances on Amazon EC2 (1 Server, 17 clients), 3600 TCP connections to
> the Server
> Reporter: Roger Kapsi
> Attachments: MINA-116-vs-M2.tar.bz2
>
>
> Hi,
> we have a system built on top of MINA. Let's say it's an application server
> built a bit like a P2P system. We're currently focusing on the server side to
> get the most out of it and the client side is experimental (we use something
> else in production which is not based on MINA). From time to time I'm testing
> the latest MINA builds to check if we can start using it. I don't know how
> previous builds of MINA 2 behaved as our client side of the code is
> relatively new but MINA 2 seems to be slower than MINA 1.1.x.
> It seems to have problems with writing the messages as soon as I put some
> load on the Server and the number of Threads from the ExecutorFilter shoots
> through the roof.
> Configuration for MINA 1.1.6 & M2
> ThreadModel: MANUAL
> Send Buffer Size: 256k
> Receive Buffer Size: 256k
> Backlog: 200
> ExecutorFilter's position is right after ProtocolCodecFilter in the
> IoFilterChain.
> I'm going to attach some JMX screenshots. Feel free to make suggestions
> regards the setup and I'll try to test 'em ASAP.
> Thanks
> Roger
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