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Published 20 hours ago • verified publisher icon apache

[Flaky-Test]: A test in the java OPC-UA driver is continuously breaking builds.

Open chrisdutz opened this issue 1 year ago • 4 comments

What happened?

The test OpcuaPlcDriverTest.multipleThreads in the java opc-ua driver testsuite is regularly failing the CI/CD builds ... re-runing them usually resolves the issue, however we can't have test break the builds at random.

Version

v0.13.0-SNAPSHOT

Programming Languages

  • [X] plc4j
  • [ ] plc4go
  • [ ] plc4c
  • [ ] plc4net

Protocols

  • [ ] AB-Ethernet
  • [ ] ADS /AMS
  • [ ] BACnet/IP
  • [ ] CANopen
  • [ ] DeltaV
  • [ ] DF1
  • [ ] EtherNet/IP
  • [ ] Firmata
  • [ ] KNXnet/IP
  • [ ] Modbus
  • [X] OPC-UA
  • [ ] S7

chrisdutz avatar Sep 16 '24 07:09 chrisdutz

I'll take a look on these and the end of week or early next. I hoped that testcontainers would help us a bit with this issue, but there still seem to be a problem.

splatch avatar Sep 16 '24 10:09 splatch

Admittedly I think the issue lies with milo and it therefore doesn't really matter how you start it ... but admittedly I didn't look too deep into the issue.

chrisdutz avatar Sep 16 '24 10:09 chrisdutz

org.apache.plc4x.java.opcua.protocol.chunk.ChunkFactoryTest also seems to continuously break builds (all values seem to be off by 1)

chrisdutz avatar Sep 30 '24 10:09 chrisdutz

For now I've changed assertion in ChunkTest to see if we have this +1 offset only for one field or for many. I am not entirely sure why it happens. I had a look and there is fairly basic math which is static.

Lets keep this issue open to track this test and others, if they keep failing randomly.

splatch avatar Oct 22 '24 23:10 splatch