[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

[LDM #WIW-895985]: pqact errors

Dave,

> Do the errors occur at the same time every day or are they scattered 
> throughout the day?
> 
> If the 6 digits following the “T” in the first field of each ERROR message is 
> the hour, minute, and seconds associated with the message (and the arrival of 
> a product),

They are. The timestamp is an ISO 8601 standard.

> then it looks like errors are being generated anywhere from several per 
> minute to every few minutes, throughout the day.

> I see that the utility /usr/local/bin/STRIP is used. Does it log? If not, can 
> you instrument it?

> STRIP isn’t logging, and I don’t know off-hand how to make it log. (Redirect 
> standard error output to a file in the pqact.conf line that invokes it?) 
> However, as an alternative test, I commented out all but one of the PIPEs in 
> our pqact.conf file that PIPE to STRIP and reread the pqact.conf file. After 
> 15 minutes there have been zero ERROR messages.
> 
> Good call.
> 
> All but one of the products that we PIPE through STRIP are NWS forecast text 
> products from the WMO feed. I don’t think that anyone is using the locally 
> stored versions of those products at SFSU any more, so a brute force tactic 
> for addressing the error messages is simply to stop trying to save these 
> products at all. That doesn’t get to the heart of the problem, an 
> unsatisfying solution in an academic sense (and because I’m curious about 
> it), but it probably won't matter in any practical sense.
> 
> I don’t remember any more where we got the STRIP program. (It’s binary code, 
> but we didn’t compile it locally. It appears that in January of 2017 it 
> replaced a c-shell script consisting of one line: "/usr/bin/tr -d 
> '\001\003\015'  >! $1”)

Interesting. That function (stripping out control characters) can be 
accomplished via the "-strip" option of the FILE and PIPE commands: there's no 
reason to use /usr/local/bin/STRIP.

Regards,
Steve Emmerson

Ticket Details
===================
Ticket ID: WIW-895985
Department: Support LDM
Priority: Normal
Status: Closed
===================
NOTE: All email exchanges with Unidata User Support are recorded in the Unidata 
inquiry tracking system and then made publicly available through the web.  If 
you do not want to have your interactions made available in this way, you must 
let us know in each email you send to us.