[[PageOutline(2-5, Table of Contents, floated)]]

= BOA Cron Jobs =

In December 2015 all the [ticket:846#comment:88 root BOA cron tasks were commented out] on PuffinServer, the following [https://penguin.transitionnetwork.org/munin/transitionnetwork.org/puffin.transitionnetwork.org/index.html Munin graphs] illustrate the effect this had. 

The number of `dash` and `bash` processes, which always peaked when the server was killing itself dropped:

[[Image(multips-month.png)]]

This caused the load to go down dramatically:

[[Image(load-month.png)]]

And the load time for pages speeded up in a corresponding manner:

[[Image(http_loadtime-month.png)]]

See also the Munin graphs attached to ticket:893#comment:4 to see what a massive positive effect the commenting out of all the BOA root cron jobs had.

== root crontab ==

The following BOA root cronjobs on PuffinServer were commented out on ticket:846#comment:88 and we did consider if any were worth re-enabling on ticket:893:

{{{
crontab -l -u root
#* * * * * bash /var/xdrago/second.sh >/dev/null 2>&1
#* * * * * bash /var/xdrago/minute.sh >/dev/null 2>&1
#* * * * * bash /var/xdrago/runner.sh >/dev/null 2>&1
#* * * * * bash /var/xdrago/manage_ltd_users.sh >/dev/null 2>&1
#03 * * * * bash /var/xdrago/clear.sh >/dev/null 2>&1
#14 * * * * bash /var/xdrago/purge_binlogs.sh >/dev/null 2>&1
#01 0 * * * bash /var/xdrago/graceful.sh >/dev/null 2>&1
#08 0 * * * bash /var/xdrago/mysql_backup.sh >/dev/null 2>&1
#08 2 * * * bash /opt/local/bin/backboa backup >/dev/null 2>&1
#08 8 * * * bash /opt/local/bin/duobackboa backup >/dev/null 2>&1
#58 2 * * * bash /var/xdrago/daily.sh >/dev/null 2>&1
#58 5 * * * bash /var/xdrago/fetch-remote.sh >/dev/null 2>&1
}}}

=== /var/xdrago/second.sh ===

This script (among other things) deals with "load control", it changing Nginx config and kills services depending on the load. 

=== /var/xdrago/minute.sh === 

This script (among other things) kills PHP-FPM based on the size of the logs.

=== /var/xdrago/runner.sh ===

This script deals with "load control".

=== /var/xdrago/manage_ltd_users.sh ===

This script does various things with user accounts and BOA updates.

=== /var/xdrago/clear.sh ===

This script deal with swap, load and some updates.

=== /var/xdrago/purge_binlogs.sh ===

This script counts the CPUs and does "load control".

=== /var/xdrago/graceful.sh ===

This script deletes log files.

=== /var/xdrago/mysql_backup.sh === 

This script creates a MySQL in `/data/disk/arch/sql` however we are also running backup ninja via `/etc/backup.d/20.mysql` which dumps backups in `/var/backups/mysql/sqldump`.

=== /opt/local/bin/backboa backup ===

This script is for backing the server up to Amazon AWS, which is something which we don't use.

=== /opt/local/bin/duobackboa === 

This script is for backing the server up to Amazon AWS, which is something which we don't use.

=== /var/xdrago/daily.sh ===

This script (among other things) checks Drupal sites and deletes temp files.

=== /var/xdrago/fetch-remote.sh ===

This script doesn't exist.