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tango-controls / pytango

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http://pytango.rtfd.io
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no database -nodb option #353

Closed dschick closed 4 years ago

dschick commented 4 years ago

Hi,

I am currently developing a DS on a raspi and would like to test it without the need for a connection to a Tango-DB on a remote host. I found the -nodb option in the TANGO documentation. But when I start my DS with the following command: ./plasma-debris-protector.py raspi -nodb -dlist id12/motor/1 I do get the following error:

Missing ORB endPoint specification
usage :  PlasmaDebrisProtector instance_name [-v[trace level]] [-file=<file_name> | -nodb [-dlist <device name list>] ]

Otherwise the DS works fine in connection with the Tango DB. I am using PyTango 9.2.5 from the raspi repos.

Best

Daniel

dschick commented 4 years ago

okay, found the answer to my own question. It was obviously not a pytango but a tango issue. The documenation was a bit thin at that point. By adding -ORBendPoint giop:tcp::10000 to the command for starting the DS it is working.

ajoubertza commented 4 years ago

Hi @dschick

Glad you got it sorted out. Another convenient method to do this is the using the DeviceTestContext, which we normally use to launch device servers during automated tests. It can be used from the command line, something like this:

python -m tango.test_context plasma-debris-protector.PlasmaDebrisProtector --host 127.0.0.1

A full example here.

And the command line arguments for v9.2.5 can be seen here.

dschick commented 4 years ago

great, that is even more convinient. Maybe it it worth putting this a bit more prominant into the docs?

many thanks!

andygotz commented 4 years ago

I agree this should be made visible in the documentation. I have also created an issue #354 to improve the command line options and help

dschick commented 4 years ago

great! I guess this will help many users.

Many thanks for the prompt replies