I assume that means it should make tools-login more stable as well, since the crontab will auto adapt crontab entries to use jsub and not login.
On Mar 24, 2014, at 4:43 PM, Marc A. Pelletier <[email protected]> wrote: > Hey all, > > We've had difficulty in the past with cron jobs not running for a number > of reasons (the primary being an overloaded bastion because of bots > running on it), so I made a few changes to how cron is to be used in the > future to vastly improve reliability: > > a) cron for tools will now be executed from a different, dedicated > server that serves only that purpose. This will insulate the bastions > from running cron jobs, and vice-versa. > > b) the 'crontab' executable will edit the crontabs /on that host/ > directly (so there will be no need to change how you're doing thing); > regardless of which bastion you run it from. (So, from tools-login or > tools-dev, crontab will access the same schedule). > > c) crontabs will be automatically edited to add a prefix to send your > jobs to the grid with reasonable default values unless the entry already > invokes jsub, jstart or qsub. If the crontab program does that, it will > tell you so that you can inspect and edit the entries and adapt them to > your needs. > > Those three measures will result in considerably more reliable execution > of scheduled jobs, as well as improved performance on the bastion hosts. > > FOR THE NEXT WEEK OR SO: both systems will be available at the same > time. You can use the new system on the submit host by using 'xcrontab' > rather than 'crontab' to set or edit your crontab. Be aware that /both/ > schedules will be executed unless you also remove your bastion crontab. > > AT THE END OF THAT WEEK: any crontabs you may have had on tools-login > or tools-bastion will be moved to the new server, and 'crontab' will be > made to use the new system exclusively. You have no intervention to > make; this will be done automatically. > > -- Marc > > _______________________________________________ > Labs-l mailing list > [email protected] > https://lists.wikimedia.org/mailman/listinfo/labs-l _______________________________________________ Labs-l mailing list [email protected] https://lists.wikimedia.org/mailman/listinfo/labs-l
