simonsobs / simonsobs/sodetlib

pysmurf issue of epics failed to respond

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Dominant language
Python
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Description

Hello,

We are currently having this issue of running S = cfg.get_smurf_control() in jupyter notebook
Command failed: smurf_server_s2:AMCc:SmurfApplication:EnabledBays, that's related to epics failed to respond
and in ipython it shows

In [1]: CA.Client.Exception...............................................
    Warning: "Virtual circuit disconnect"
    Context: "localhost:5064"
    Source File: ../cac.cpp line 1223
    Current Time: Mon Jul 10 2023 18:06:59.475148447

i think this might be related to issues #353 that happened a month ago, which was fixed by hammering for several times(!!). and it's kind of random. After rerunning S=cfg.get_smurf_control(), it 's back to normal

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First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start by reproducing the failure from a Jupyter notebook at cfg.get_smurf_control(), then compare the behavior with issue #353 and the IPython virtual-circuit warning. Trace the entry point and its connection handling; done means identifying a reliable cause and preventing or clearly reporting the intermittent EPICS response failure.

Written by the indexing model from the issue text.

Assessment

Tech stack
jupyter-notebook, python
Domain
backend
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
25/100

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