[Halld-offline] bad f250 pulse data

[Shepherd, Matthew]

I was on shift when runs 50920 and 21 were taken.  I am certain we were looking at rootspy plots to verify data quality.  However, I do remember the rootspy processes dying frequently and having to restart them using the GUI.    It is a little unfortunate the data is unrecoverable.  :(

There were some DAQ issues. We noticed erratic live time with no explanation for the reason.  The relevant shift summary entry is here:

https://logbooks.jlab.org/entry/3608369

Matt

> On Nov 13, 2018, at 9:48 AM, Naomi Jarvis <nsj at cmu.edu> wrote:
> 
> 
> Just FYI this affects runs 50920 to 50926.  The runs either side of those look ok.
> 
> On Fri, Nov 9, 2018 at 2:27 PM Naomi Jarvis <nsj at cmu.edu> wrote:
> 
> PlotBrowser incoming data is completely blank (not even an empty histogram) for 50924 and a few other runs.  That could be a clue. 
> 
> On Fri, Nov 9, 2018 at 2:10 PM Sean Dobbs <sdobbs at fsu.edu> wrote:
> Hi Naomi,
> 
> It does indeed looks like there's possibly some corrupted data in there.  
> We don't have any automatic monitoring that checks for something like this at the moment.
> 
> Usually this is noted as we go through the runs and look at monitoring/etc. results.
> 
> Cheers,
> Sean
> 
> On Fri, Nov 9, 2018 at 1:53 PM Mark Ito <marki at jlab.org> wrote:
> Naomi,
> 
> I opened an issue on this on GitHub, for the halld_recon repository, so it does not get lost.
> 
>   -- Mark
> 
> On 11/09/2018 01:45 PM, Naomi Jarvis wrote:
>> Hi,
>> 
>> I have run into a problem with the evio files in run 50924 - hd_root finds a bad f250 pulse and then throws an JException and crashes.  Files 000 and 001 crash instantly, file 002 proceeds for 2.1k events and then crashes.  I'm using halld_recon version 3.2.0. 
>> 
>> Does anyone know which runs do and don't have these errors in them?   
>> 
>> Was this already found by the automatic monitoring software?   (if not, why not?)
>> 
>> Naomi.
>> 
>> 
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> 
> -- 
> Mark Ito, 
> marki at jlab.org, (757)269-5295
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