But that's not the way you handle logging.

Logging frameworks are built to allow analysis and turn on and off this parts 
interesting to me as a user. The way you define what you want is by configuring 
the logging.

Staying by your car example:
Probably you didn't leave the volume of the stereo at the factory setting ;-) 
so that's what we/you have to do to.

Chris

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________________________________
From: Julian Feinauer <j.feina...@pragmaticminds.de>
Sent: Friday, April 12, 2019 11:06:31 AM
To: dev@plc4x.apache.org
Subject: Re: [Netty / S7] Many log messages although everything works

Hi Chris,

well.. thats like the handling procedure if you have an unknown noise in your 
car... turn the radio louder __
In this case, I wanted to delete the curse not mute the logs... as It sounds 
for me this is a issue to be addressed.

Julian

Am 12.04.19, 11:01 schrieb "Christofer Dutz" <christofer.d...@c-ware.de>:

    You could increase the log-level ... should reduce the amount of logging 
drastically.

    Chris

    Am 12.04.19, 10:56 schrieb "Julian Feinauer" <j.feina...@pragmaticminds.de>:

        Hi all,

        as many of you may know, we use PLC4X pretty heavily in Prod.
        We recently checked our logs and found a lot of entries from PLC4X 
which are thrown although everything is working.
        This is something I want to fix (if theres no issue then be silent).
        We use the S7 driver, but I think this is a general Netty (tcp?) topic.

        The mostly logged issue is thrown logged by 
io.netty.channel.DefaultChannelPipeline and is

        ```
        An exceptionCaught() event was fired, and it reached at the tail of the 
pipeline. It usually means the last handler in the pipeline did not handle the 
exception. java.io.IOException: Die Verbindung wurde vom Kommunikationspartner 
zurückgesetzt at sun.nio.ch.FileDispatcherImpl.read0(Native Method) 
~[?:1.8.0_161] at sun.nio.ch.SocketDispatcher.read(SocketDispatcher.java:39) 
~[?:1.8.0_161] at sun.nio.ch.IOUtil.readIntoNativeBuffer(IOUtil.java:223) 
~[?:1.8.0_161] at sun.nio.ch.IOUtil.read(IOUtil.java:192) ~[?:1.8.0_161] at 
sun.nio.ch.SocketChannelImpl.read(SocketChannelImpl.java:380) ~[?:1.8.0_161] at 
io.netty.buffer.PooledUnsafeDirectByteBuf.setBytes(PooledUnsafeDirectByteBuf.java:288)
 ~[netty-buffer-4.1.23.Final.jar!/:4.1.23.Final] at 
io.netty.buffer.AbstractByteBuf.writeBytes(AbstractByteBuf.java:1108) 
~[netty-buffer-4.1.23.Final.jar!/:4.1.23.Final] at 
io.netty.channel.socket.nio.NioSocketChannel.doReadBytes(NioSocketChannel.java:345)
 ~[netty-transport-4.1.23.Final.jar!/:4.1.23.Final] at 
io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(AbstractNioByteChannel.java:148)
 [netty-transport-4.1.23.Final.jar!/:4.1.23.Final] at 
io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:645) 
[netty-transport-4.1.23.Final.jar!/:4.1.23.Final] at 
io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:580)
 [netty-transport-4.1.23.Final.jar!/:4.1.23.Final] at 
io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:497) 
[netty-transport-4.1.23.Final.jar!/:4.1.23.Final] at 
io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:459) 
[netty-transport-4.1.23.Final.jar!/:4.1.23.Final] at 
io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:886)
 [netty-common-4.1.23.Final.jar!/:4.1.23.Final] at 
io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30)
 [netty-common-4.1.23.Final.jar!/:4.1.23.Final] at 
java.lang.Thread.run(Thread.java:748) [?:1.8.0_161]
        ```

        Could anyone comment on that, what this means or what we can / should 
do to handle this?
        We get this entry nearly 100 times a hour (for multiple hundreds 
requests).




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