[Bug]: Unable to connect to PLC #1958
Comments
ottlukas
added
S7
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Tried with Netty/4.1.116.Final (modules:-common,-buffer,-transport,-handler,-codec) and get different results. Now the connection fails and returns immediately. Log output: [2025/01/09 10:06:25] -Dio.netty.noPreferDirect: {} |
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Hi, Please use version 0.13.0-SNAPSHOT, if you use a single CPU it should solve your problem. I'll be looking forward to your comments, |
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I use the maven artifacts so I can wait until 0.13 is released. Trying to debug as well in the mean time. Thanks, |
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The problem with that approach is that we can't 100% guarantee that it's fixed in 0.13.0. If you test it now, we have a chance of fixing it for the next release. Otherwise it will be a while till the next one. Snapshots are also available as maven artifacts. All you need to do is add the apache snapshot repo to your pom. |
What happened?
PlcConnection plcConn = PlcDriverManager.getDefault().getConnectionManager().getConnection("s7://10.48.61.20);
Method never returns. Using WireShark I can see TCP connection was established but no data is transmitted.
Not sure why some output is not in english.
OS : Windows Server 2022
Java : 17
Netty : 4.1.63 (last one that included -all build -- alternative is to include 40+ deps - foobar!)
Here is log output:
[2025/01/06 13:58:48] Instantiating new PLC Driver Manager with class loader {}
[2025/01/06 13:58:48] Registering available drivers...
[2025/01/06 13:58:48] Registering driver for Protocol {} ({})
[2025/01/06 13:58:48] Using SLF4J as the default logging framework
[2025/01/06 13:58:48] Platform: Windows
[2025/01/06 13:58:48] -Dio.netty.noUnsafe: {}
[2025/01/06 13:58:48] sun.misc.Unsafe: unavailable (io.netty.noUnsafe)
[2025/01/06 13:58:48] Java version: {}
[2025/01/06 13:58:48] java.nio.DirectByteBuffer.(long, int): {}
[2025/01/06 13:58:48] maxDirectMemory: {} bytes (maybe)
[2025/01/06 13:58:48] -Dio.netty.tmpdir: {} (java.io.tmpdir)
[2025/01/06 13:58:48] -Dio.netty.bitMode: {} (sun.arch.data.model)
[2025/01/06 13:58:48] -Dio.netty.maxDirectMemory: {} bytes
[2025/01/06 13:58:48] -Dio.netty.uninitializedArrayAllocationThreshold: {}
[2025/01/06 13:58:48] java.nio.ByteBuffer.cleaner(): unavailable
[2025/01/06 13:58:48] java.lang.UnsupportedOperationException: sun.misc.Unsafe unavailable
at io.netty.util.internal.CleanerJava9.(CleanerJava9.java:68)
at io.netty.util.internal.PlatformDependent.(PlatformDependent.java:193)
at io.netty.util.ConstantPool.(ConstantPool.java:32)
at io.netty.util.AttributeKey$1.(AttributeKey.java:27)
at io.netty.util.AttributeKey.(AttributeKey.java:27)
at org.apache.plc4x.java.s7.readwrite.protocol.S7HMuxImpl.(S7HMuxImpl.java:61)
at org.apache.plc4x.java.s7.readwrite.protocol.S7HPlcConnection.(S7HPlcConnection.java:117)
at org.apache.plc4x.java.s7.readwrite.protocol.S7HGeneratedDriverBase.getConnection(S7HGeneratedDriverBase.java:162)
at org.apache.plc4x.java.DefaultPlcDriverManager.getConnection(DefaultPlcDriverManager.java:79)
at javaforce.controls.Controller.connect(Controller.java:101)
at javaforce.controls.ReadTag.main(ReadTag.java:21)
[2025/01/06 13:58:48] -Dio.netty.noPreferDirect: {}
[2025/01/06 13:58:48] -Dio.netty.threadLocalMap.stringBuilder.initialSize: {}
[2025/01/06 13:58:48] -Dio.netty.threadLocalMap.stringBuilder.maxSize: {}
[2025/01/06 13:58:48] -D{}: {}
[2025/01/06 13:58:48] -D{}: {}
[2025/01/06 13:58:48] -Dio.netty.allocator.numHeapArenas: {}
[2025/01/06 13:58:48] -Dio.netty.allocator.numDirectArenas: {}
[2025/01/06 13:58:48] -Dio.netty.allocator.pageSize: {}
[2025/01/06 13:58:48] -Dio.netty.allocator.maxOrder: {}
[2025/01/06 13:58:48] -Dio.netty.allocator.chunkSize: {}
[2025/01/06 13:58:48] -Dio.netty.allocator.smallCacheSize: {}
[2025/01/06 13:58:48] -Dio.netty.allocator.normalCacheSize: {}
[2025/01/06 13:58:48] -Dio.netty.allocator.maxCachedBufferCapacity: {}
[2025/01/06 13:58:48] -Dio.netty.allocator.cacheTrimInterval: {}
[2025/01/06 13:58:48] -Dio.netty.allocator.cacheTrimIntervalMillis: {}
[2025/01/06 13:58:48] -Dio.netty.allocator.useCacheForAllThreads: {}
[2025/01/06 13:58:48] -Dio.netty.allocator.maxCachedByteBuffersPerChunk: {}
[2025/01/06 13:58:48] -Dio.netty.allocator.type: {}
[2025/01/06 13:58:48] -Dio.netty.threadLocalDirectBufferSize: {}
[2025/01/06 13:58:48] -Dio.netty.maxThreadLocalCharBufferSize: {}
[2025/01/06 13:58:48] -Dio.netty.eventLoopThreads: {}
[2025/01/06 13:58:48] -Dio.netty.noKeySetOptimization: {}
[2025/01/06 13:58:48] -Dio.netty.selectorAutoRebuildThreshold: {}
[2025/01/06 13:58:48] org.jctools-core.MpscChunkedArrayQueue: unavailable
[2025/01/06 13:58:49] failed to instrument a special java.util.Set into: {}
[2025/01/06 13:58:49] failed to instrument a special java.util.Set into: {}
[2025/01/06 13:58:49] failed to instrument a special java.util.Set into: {}
[2025/01/06 13:58:49] failed to instrument a special java.util.Set into: {}
[2025/01/06 13:58:49] failed to instrument a special java.util.Set into: {}
[2025/01/06 13:58:49] failed to instrument a special java.util.Set into: {}
[2025/01/06 13:58:49] failed to instrument a special java.util.Set into: {}
[2025/01/06 13:58:49] failed to instrument a special java.util.Set into: {}
[2025/01/06 13:58:49] Configuring Bootstrap with {}
[2025/01/06 13:58:49] -Dio.netty.processId: {} (auto-detected)
[2025/01/06 13:58:49] -Djava.net.preferIPv4Stack: {}
[2025/01/06 13:58:49] -Djava.net.preferIPv6Addresses: {}
[2025/01/06 13:58:49] Loopback interface: {} ({}, {})
[2025/01/06 13:58:49] Failed to get SOMAXCONN from sysctl and file {}. Default: {}
[2025/01/06 13:58:49] -Dio.netty.machineId: {} (auto-detected)
[2025/01/06 13:58:49] [id: 0x53770bd9] REGISTERED
[2025/01/06 13:58:49] [id: 0x53770bd9] CONNECT: /10.48.61.20:102
[2025/01/06 13:58:49] [id: 0x53770bd9, L:/10.48.61.10:49339 - R:/10.48.61.20:102] ACTIVE
[2025/01/06 13:58:49] Channel was created, firing ChannelCreated Event
[2025/01/06 13:58:49] [id: 0xembedded, L:embedded - R:embedded] USER_EVENT: org.apache.plc4x.java.spi.events.ConnectEvent@9f116cc
[2025/01/06 13:58:49] Loaded default ResourceLeakDetector: {}
[2025/01/06 13:58:49] User Event triggered {}
[2025/01/06 13:58:49] S7 Driver running in ACTIVE mode.
[2025/01/06 13:58:49] Sending COTP Connection Request
[2025/01/06 13:58:49] Nombre tuberias: Multiplexor
[2025/01/06 13:58:49] Nombre tuberias: LoggingHandler#0
[2025/01/06 13:58:49] Nombre tuberias: DefaultNettyPlcConnection$1$1#0
[2025/01/06 13:58:49] Nombre tuberias: DefaultNettyPlcConnection$1$2#0
[2025/01/06 13:58:49] Nombre tuberias: CODEC
[2025/01/06 13:58:49] Nombre tuberias: EventListenerMessageCodec#0
[2025/01/06 13:58:49] Nombre tuberias: WRAPPER
[2025/01/06 13:58:49] Nombre tuberias: DefaultChannelPipeline$TailContext#0
[2025/01/06 13:58:49] 13:58:49.182366800 userEventTriggered: Multiplexor Event: org.apache.plc4x.java.spi.events.ConnectEvent@9f116cc
[2025/01/06 13:58:50] *************************************************
INSTAMCIA PRIMARIO : [id: 0x53770bd9, L:/10.48.61.10:49339 - R:/10.48.61.20:102]
ACTIVO PRIMARIO : true
INSTAMCIA SECUNDARIO : NULL
ACTIVO SECUNDARIO : NULL
CANAL CONECTADO? : false
CANAL ESTUVO CONECTADO? : false
CONTADORES : 0 : 0
[2025/01/06 13:58:51] *************************************************
INSTAMCIA PRIMARIO : [id: 0x53770bd9, L:/10.48.61.10:49339 - R:/10.48.61.20:102]
ACTIVO PRIMARIO : true
INSTAMCIA SECUNDARIO : NULL
ACTIVO SECUNDARIO : NULL
CANAL CONECTADO? : false
CANAL ESTUVO CONECTADO? : false
CONTADORES : 0 : 0
[2025/01/06 13:58:52] *************************************************
INSTAMCIA PRIMARIO : [id: 0x53770bd9, L:/10.48.61.10:49339 - R:/10.48.61.20:102]
ACTIVO PRIMARIO : true
INSTAMCIA SECUNDARIO : NULL
ACTIVO SECUNDARIO : NULL
CANAL CONECTADO? : false
CANAL ESTUVO CONECTADO? : false
CONTADORES : 0 : 0
That last message just repeats...
Version
v0.12.0
Programming Languages
Protocols
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