Jens Vagts created PLC4X-172:
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Summary: ADS driver does not shutdown all threads (hangs) after
closing connection
Key: PLC4X-172
URL: https://issues.apache.org/jira/browse/PLC4X-172
Project: Apache PLC4X
Issue Type: Bug
Components: Driver-ADS
Affects Versions: 0.7.0
Reporter: Jens Vagts
Attachments: Plc4xAdsTestInitial.java,
image-2020-02-04-11-58-40-364.png
I'm starting to use the ADS protocol support of the PLC4X project. I succeeded
to read out single values but always struggle with a hanging application
process due to remaning threads of {{nioEventLoopGroup}} and {{pool-1}}.
Attached are the simple java test method and the trace log.
I build the library version 0.7-SN from source.
After 30 seconds warnings get logged regarding timeouts but the thread keep
running:
{noformat}
11:52:03.492 [pool-1-thread-1] WARN
o.a.p.j.b.p.SingleItemToSingleRequestProtocol - container
PlcRequestContainer{request=org.apache.plc4x.java.base.messages.DefaultPlcProprietaryRequest@c1b47e3}
timed out:HashedWheelTimer$HashedWheelTimeout(deadline: 101966500 ns ago,
task:
org.apache.plc4x.java.base.protocol.SingleItemToSingleRequestProtocol$$Lambda$99/0x0000000800237440@353dfda9)
11:52:08.791 [pool-1-thread-1] WARN
o.a.p.j.b.p.SingleItemToSingleRequestProtocol - container
PlcRequestContainer{request=org.apache.plc4x.java.base.messages.DefaultPlcProprietaryRequest@3220d517}
timed out:HashedWheelTimer$HashedWheelTimeout(deadline: 9469900 ns ago, task:
org.apache.plc4x.java.base.protocol.SingleItemToSingleRequestProtocol$$Lambda$99/0x0000000800237440@3fc596d9)
{noformat}
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