[Halld-offline] Changing the default CCDB source on the farm

[Mark Ito]

FYI, the change was made just now.

On 10/18/19 12:28 PM, Mark Ito wrote:
>
> The change described below should be transparent to users, and its 
> effect will only be felt by some jobs running on the JLab farm. It is 
> going into effect sometime this afternoon. If you are interested in 
> the details, read on...
>
> For those of you who use gxenv (aka gluex_env_jlab.(c)sh) the source 
> of your CCDB information is set by the script 
> $BUILD_SCRIPTS/calib_url_chooser.sh. On the farm, you get one of 100 
> copies of the SQLite version of the CCDB, chosen randomly, otherwise 
> you use our standard database server, hallddb.jlab.org, to get CCDB 
> constants. This scheme was described in a previous email 
> <https://mailman.jlab.org/pipermail/halld-offline/2019-April/003613.html>. 
>
>
> This behavior is going to change this afternoon.
>
> To move traffic to the new mysql server, hallddb-farm.jlab.org, it 
> will now be chosen to serve CCDB constants when on the farm. Non-farm 
> jobs will be directed to hallddb.jlab.org as before. The new server 
> was described in another previous email 
> <https://mailman.jlab.org/pipermail/halld-offline/2019-September/003758.html>.
>
> If you don't use gxenv or calib_url_chooser.sh, then this change does 
> not affect you.
>
> If you would like to use the random SQL file scheme (the previous 
> default on the farm), you can give an option to the chooser script:
>
>    export JANA_CALIB_URL=`$BUILD_SCRIPTS/calib_url_chooser.sh sqlite`
>
> This choice will be honored whether you are on the farm or not.
>
> Finally, note that if we run into trouble with this change, it is easy 
> to reverse.
>
>
> _______________________________________________
> Halld-offline mailing list
> Halld-offline at jlab.org
> https://mailman.jlab.org/mailman/listinfo/halld-offline
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://mailman.jlab.org/pipermail/halld-offline/attachments/20191018/ebd1a4f5/attachment-0002.html>