Expose workerCount parameter of Netty NioServerSocketChannelFactory in
Camel-Netty
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Key: CAMEL-4531
URL: https://issues.apache.org/jira/browse/CAMEL-4531
Project: Camel
Issue Type: Improvement
Components: camel-netty
Affects Versions: 2.8.1
Environment: ALL
Reporter: edge wang
Attachments: workerCount.patch
Camel-netty component did not implement oio model of netty, we can only use nio
one, however it uses default workerCount parameter from Netty, which is
cpu_core_threads*2.
This is far from enough when the underlying app is a little bit slow, e.g. a
traditional transactional application. In this situation NioWorker threads
become an obvious bottle neck.
I think that exposing workerCount is a very practical yet effective way for one
to broaden the usage scenario of camel-netty in various network
communication/application environment.
I add a workerCount parameter in the configuration, one can use it in the
Endpoint URL: "netty:tcp://0.0.0.0:1111?...&workerCount=256&...". I leave the
default value to 0 so that one can use Netty default policy by omit the param.
I have tested the patch in a 2 core(4 Threads) machine, using 256 workers, it
significantly improves the performance by 15 times, than the default parameter
of only 8 workers, while CPU usage only increase 5 times.
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