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archiver-appliance / epicsarchiverap

This is an implementation of an archiver for EPICS control systems that aims to archive millions of PVs.
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PV shows that the connection is normal, but in fact it is not connected #103

Open HongYi-Shern opened 4 years ago

HongYi-Shern commented 4 years ago

Some PV connection status shows that the connection is normal, but the Last event column shows never.In fact, the PV release is normal, but the archiver appliance is not connected.Please check the picture below for details.

conn

RuizheIsaf commented 2 years ago

hi, @HongYi-Shern do you resolve your question? i met the same question...

slacmshankar commented 2 days ago

See if pause/resume reconnects and gets data. If it still doesn't, pause and then check the PVDetails and see if there are any Channels still hanging around Finally, see if a restart fixes the issue.

jacomago commented 1 hour ago

Note (to my recollection) that the Last Event is the last event since the last reboot. It does not represent the last event ever.

So if you have some PVs that change infrequently this is a common problem.