Bug #4794
closed
Need more than 3 values to unpack error during data collection
Added by Ed Eng over 8 years ago.
Updated almost 8 years ago.
Affected Version:
Appion/Leginon 2.2.0
Description
2017/02/28
Collecting at -30 degree tilt
Session: 17feb28b
Priyamvada encountered a few errors:
- preset request to "hln" failed, waiting 60 seconds to try again
- Move to target failed: unable to set instrument
- need more than 3 values to unpack
No errors within Leginon clients. Sequenced paused within K1n_Z_Focus sequence at hln step.
Restarted Leginon and continuing data collection.
Files
- Status changed from New to Assigned
lost communication to scope. may need to add a retry.
unpack error may be in pyscope/tecnai.py _setStagePosition function unpacking exc. Need to check on scope
- Project changed from 138 to Leginon
- Subject changed from Leginon error during Krios1 tilt data collection to Need more than 3 values to unpack error during data collection
- Affected Version set to Appion/Leginon 2.2.0
The root problem is lost of communication to COM, resulting a COMError. The exception raised do not seem to have a fixed format or has been changed since the pyscope code handling it was written.
I can confirm that for the past 3-4 months this error has been showing up during tilt-series collection on Krios1 and has increased with time. I don't think I've seen it on Krios2, and I'm pretty sure I haven't seen it on non-Krios scopes. When Krios1 gets a PM this should be brought up.
2017/03/08
Occurred multiple times during session for rhite during alpha tilt.
I will make more permanent log on position where this happens on the scope computer.
- Related to Bug #4951: Access Denied ComError in stage movement on Krios added
- Status changed from Assigned to Closed
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