[Halld-offline] problems with reading recent data with many threads

[David Lawrence]

Hi Sean,

  Nathan pointed me to this earlier this morning but I haven’t had a chance to track it down.
It looks to be only an infrequent event. Most likely something that was added in sync 
events. I do not believe there is any corruption of the data overall. I will take a look at this
this evening to see if I can track it down.

Regards,
-David


> On Dec 16, 2016, at 6:08 PM, Sean Dobbs <s-dobbs at northwestern.edu> wrote:
> 
> Hi Offliners,
> 
> I've run into some crashes reading some of the raw data files taken last night.  I've been analyzing run 21943 with the latest sim-recon, and have noticed this problem with files hd_rawdata_021943_001.evio and hd_rawdata_021943_002.evio
> 
> Strangely the crashes seem to occur when I run with many (>20) threads.  I tried recreating the problem in single threaded mode, but it did not occur.  I haven't done a scan to see at which point the problem happens, but it does some to consistently occur at larger thread count.  A snippet containing the error is below.  Has anyone else seen anything like this?
> 
> Cheers,
> Sean
> 
> libraries/DAQ/HDEVIO.cc:873 Uknown tag: 4144ad)  1.5kHz  (avg.: 1.6kHz)       
> libraries/DAQ/HDEVIO.cc:873 Uknown tag: 41b
> libraries/DAQ/HDEVIO.cc:873 Uknown tag: 98eb
> libraries/DAQ/HDEVIO.cc:873 Uknown tag: 0
> libraries/DAQ/HDEVIO.cc:873 Uknown tag: 8bc0
> JANA ERROR>>
> JANA ERROR>>?JException:    code = 0    text = EVIO bank length word is zero in swap_bank!
> JANA ERROR>>
> JANA ERROR>>File: libraries/DAQ/swap_bank.cc,   Line: 35
> JANA ERROR>>nts processed  (531.6k events read)  480.0Hz  (avg.: 1.6kHz)     
> JANA ERROR>>?JException:    code = 0    text = EVIO bank length word is zero in swap_bank!
> JANA ERROR>>
> JANA ERROR>>File: libraries/DAQ/swap_bank.cc,   Line: 35
> JANA ERROR>>nts processed  (531.7k events read)  0.0Hz  (avg.: 1.6kHz)       
> JANA ERROR>>?JException:    code = 0    text = WARNING: unknown bank type (0x43)
> JANA ERROR>>
> JANA ERROR>>File: libraries/DAQ/swap_bank.cc,   Line: 91
> JANA ERROR>> didn't sleep  (531.7k events read)  0.0Hz  (avg.: 1.6kHz)     
> 
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