* uuid command handling in agent not as expected

[EMPreethi]

I want to change UUID in agent by sending * uuid command from the adapter as a part of SHDR stream.
PreserveUUID is set to false.

I observed in REST output that UUID is changing, but none of the data items for the device is not getting recognized as below

024-03-06T09:30:53.442189Z (0x00007fccfd8b9b38) [trace] Connector::reader->Connector::parseSocketBuffer->Connector::processLine->ShdrAdapter::processData->DataItemMapper.ShdrTokenMapper.operator->DataItemMapper.ShdrTokenMapper.mapTokensToDataItem: Could not find data item: y1_abs 
2024-03-06T09:30:53.442200Z (0x00007fccfd8b9b38) [trace] Connector::reader->Connector::parseSocketBuffer->Connector::processLine->ShdrAdapter::processData->DataItemMapper.ShdrTokenMapper.operator->DataItemMapper.ShdrTokenMapper.mapTokensToDataItem: Could not find data item: 0.000000 
2024-03-06T09:30:53.442211Z (0x00007fccfd8b9b38) [trace] Connector::reader->Connector::parseSocketBuffer->Connector::processLine->ShdrAdapter::processData->DataItemMapper.ShdrTokenMapper.operator->DataItemMapper.ShdrTokenMapper.mapTokensToDataItem: Could not find data item: y1_axis_interlock

I also observed that UUID is changed for first * uuid command. Any repeated command with different UUID did not reflect in REST output.
Agent configuration as below

Devices = devices.xml
 ServerIP = 0.0.0.0
 Port = 5000
 AllowPut = false
 AllowPutFrom = localhost
 ReconnectInterval = 1000
 WorkerThreads = 2
 BufferSize = 17
 MaxAssets = 8096
 IgnoreTimestamps = true
 SchemaVersion = 2.0
 ShdrVersion = 2.0 # Set Default on all Adapters
 JsonVerson = 2.0
 SuppressIPAddress = true
 MonitorConfigFiles = true
 ConversionRequired = false
 UpcaseDataItemValue = true
 EnableSourceDeviceModels = false
 VersionDeviceXml = false
 Pretty = true
 Adapters {
    Saw {
      RealTime = false
      Protocol = shdr
      Host = 192.168.88.105
      Port = 9800
      PreserveUUID = false
   }
}

I expected to change UUID based on the machine connected to. Adapter streams the uuid command whenever there is change in machine and UUID of that machine is reflected in REST output of agent.

Is this a issue or expected behaviour?

Thanks

[wsobel]

Can you send me the updated device XML file. It should have been rewritten. Thanks W

[EMPreethi]

I observed that Device XML file is not rewritten instead i saw changes only in REST output.

[wsobel]

Set VersionDeviceXml = true. That will update the device xml.

[EMPreethi]

Set VersionDeviceXml = true. That will update the device xml.

if VersionDeviceXml = true, I see UUID is overwritten in device XML file along with that i am sending SHDR data for all data items but status is shown as UNAVAILABLE.

When I refer to agent logs, looks like it is not able to identify data items but it is already defined in XML file.

device XML :

<?xml version="1.0" encoding="UTF-8"?> 
<?xml-stylesheet type="text/xsl" href="/styles/styles.xsl"?> 
<MTConnectDevices xmlns:m="urn:mtconnect.org:MTConnectDevices:2.0" xmlns="urn:mtconnect.org:MTConnectDevices:2.0" xmlns:xsi="
[http://www.w3.org/2001/XMLSchema-instance"](http://www.w3.org/2001/XMLSchema-instance%22)
xsi:schemaLocation="urn:mtconnect.org:MTConnectDevices:2.0 /schemas/MTConnectDevices_2.0.xsd"> 
<Header creationTime="2024-03-07T04:30:27Z" sender="e2c573fd5e38" instanceId="0" version="2.3.0.2" deviceModelChangeTime="2024-03-07T04:30:26.367824Z" assetBufferSize="0" assetCount="0" bufferSize="0"/> 
<Devices> 
<Device id="saw" name="Saw" uuid="smartAdapter_9845"> 
<Description manufacturer="omron">SmartSaw</Description> 
<Configuration> 
<CoordinateSystems> 
<CoordinateSystem id="world_coordinates" type="WORLD"> 
<Transformation>

Why agent is not able to identify SHDR data items when UUID changes ?

[wsobel]

Please attach or upload the Device xml. I want to see if the original ids are being serialized.

[wsobel]

Can you also attach or paste the shdr from the adapter. I want to see or check what's happening in the two.

[EMPreethi]

Attached a devices XML file :
devices.txt

adapter SHDR :
adapter_test.txt

Thanks

[wsobel]

I'll test this, not sure what is going wrong.

[EMPreethi]

Few of the observation I found:

1. Looks like after handling UUID command, agent does not updates to new UUID value even though it is changing in REST output.
   Default UUID defined in XML File : smart_9845
   command sent is * uuid : smart_9845_new

2024-03-11T06:53:14.697026Z (0x00007f047f4ebb38) [error] Connector::reader->Connector::parseSocketBuffer->Connector::processLine->ShdrAdapter::processData->ShdrAdapter::protocolCommand: _1a67104bd6:Received protocol command 'description' for device 'smart_9845', but the device could not be found 
2024-03-11T06:53:14.697043Z (0x00007f047f4ebb38) [debug] Connector::reader->Connector::parseSocketBuffer->Connector::processLine->ShdrAdapter::processData->ShdrAdapter::protocolCommand: Processing command: manufacturer: omron 
2024-03-11T06:53:14.697051Z (0x00007f047f4ebb38) [warning] Connector::reader->Connector::parseSocketBuffer->Connector::processLine->ShdrAdapter::processData->ShdrAdapter::protocolCommand: _1a67104bd6: Cannot find device for name smart_9845 
2024-03-11T06:53:14.697059Z (0x00007f047f4ebb38) [error] Connector::reader->Connector::parseSocketBuffer->Connector::processLine->ShdrAdapter::processData->ShdrAdapter::protocolCommand: _1a67104bd6:Received protocol command 'manufacturer' for device 'smart_9845', but the device could not be found

2.Adding Device configuration within Adapter block results in agent identifying every data item and handling command properly.

Adapters {
    Saw {
      Device = Saw
      RealTime = false
      Protocol = shdr
      Host = 192.168.88.105
      Port = 9800
      PreserveUUID = false
   }
}

If above Device config is not added, then streaming * device: Saw command from Adapter will also results in agent identifying every data items.

Thank you

[wsobel]

I'll check in the protocol comment for * uuid. I think I have enough to reproduce the issue.

Thanks

• W