[Clas_offline] Planned clasdb upgrade

[boiarino at jlab.org]

Dennis,
please let us know as soon as new clasdb is operational, for one more
logbook check. Hopefully it will be during work hours ...
Thanks, Sergey

>
> We are planning an upgrade of the CLASDB server for next week, which will
> be scheduled to coincide with an expected ~12-hour beam downtime on
> Wednesday day shift (8:00 am)
> for beam studies.
>
> The upgrade will migrate the version of the MySql database from 4.0 to
> 5.5. During the upgrade, all connections to CLADB will be disconnected,
> which may impact running farm jobs. To avoid this, prior to the upgrade,
> we will limit job submission reservation times such that all CLAS jobs
> should be completed by the time the upgrade begins.
>
> As a reminder, CLASDB is used for:
> 	- CLAS calibration constant, RUN CONTROL.
> 	- wiki pages
> 	- logbook
>
> A new version of the server already exists, with a copy of all the CLASDB
> tables. The name of the new server is CLASDB-1.
> We invite CLAS users directly involved to test CLASDB-1 so the transition
> will be transparent, and to report any problems.
>
> a1c, gemc, the logbook and the wikis are successfully tested.
>
> At the time of the transition, the old CLASDB will be turned off and
> CLASDB-1 will be renamed CLASDB.
>
>
> Contact persons:
> ungaro at jlab.org
> goetz at jlab.org
> heffner at jlab.org
>
>
>
> --
> Dennis Weygand
> weygand at jlab.org
> (757) 269-5926 (office)
> (757) 870-4844 (cell)
>
>
>
>
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