Sure thing. Is 0.8.0-snapshot hosted anywhere or is that something that needs 
to be built? Regards Adam

> On Aug 23, 2020, at 12:31 PM, Christofer Dutz <christofer.d...@c-ware.de> 
> wrote:
> 
> Hmm ... 
> 
> Could you possibly give 0.8.0-SNAPSHOT a try? .... or 0.6.x? ... 0.7.0 was 
> the first of the new generation drivers. We're maintaining the 0.6 branch and 
> working hard on making the new generation drivers 100% production ready.
> 
> Chris
> 
> 
> Am 23.08.20, 18:06 schrieb "Adam Rossi" <ac.ro...@gmail.com>:
> 
>    This is the latest 0.7.0 release from Maven. 
> 
> 
>    Regards Adam
> 
>> On Aug 23, 2020, at 11:56 AM, Christofer Dutz <christofer.d...@c-ware.de> 
>> wrote:
>> 
>> Hi Adam,
>> 
>> which version of PLC4X are you using? I know we had similar reports some 
>> time ago, but had thought we had fixed them
>> 
>> Chris
>> 
>> 
>> 
>> Am 23.08.20, 16:40 schrieb "Adam Rossi" <ac.ro...@gmail.com>:
>> 
>>   Howdy. I am seeing a persistent thread being created for every
>>   plcConnection connect which looks like the following:
>> 
>>   Name: nioEventLoopGroup-11-1
>>   State: RUNNABLE
>>   Total blocked: 0  Total waited: 0
>> 
>>   Stack trace:
>>   java.base@13.0.2/sun.nio.ch.EPoll.wait(Native Method)
>>   java.base@13.0.2
>>   /sun.nio.ch.EPollSelectorImpl.doSelect(EPollSelectorImpl.java:120)
>>   java.base@13.0.2
>>   /sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:124)
>>      - locked io.netty.channel.nio.SelectedSelectionKeySet@f6df6b
>>      - locked sun.nio.ch.EPollSelectorImpl@7ffc19
>>   java.base@13.0.2/sun.nio.ch.SelectorImpl.select(SelectorImpl.java:141)
>>   
>> app//io.netty.channel.nio.SelectedSelectionKeySetSelector.select(SelectedSelectionKeySetSelector.java:68)
>>   app//io.netty.channel.nio.NioEventLoop.select(NioEventLoop.java:803)
>>   app//io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:457)
>>   
>> app//io.netty.util.concurrent.SingleThreadEventExecutor$4.run(SingleThreadEventExecutor.java:989)
>>   
>> app//io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74)
>>   
>> app//io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30)
>>   java.base@13.0.2/java.lang.Thread.run(Thread.java:830)
>> 
>> 
>>   This happens both when creating a connection directly or when using the
>>   plc4x connection pool.
>> 
>>   In both cases I am obtaining the connection, reading some modbus values,
>>   and then closing the connection. From the plcConnection metadata the
>>   connection type I am using is:
>> 
>>   org.apache.plc4x.java.spi.connection.DefaultNettyPlcConnection
>> 
>>   Over time thousands of these nioEventLoopGroup threads are created and I
>>   experience an OutOfMemory error in my program.
>> 
>>   Has anyone experienced this problem? Is there a way to force these threads
>>   to close, timeout, or to specify the total thread limit?
>> 
>>   Thanks and Regards, Adam
>> 
> 

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