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Annotation of loncom/html/adm/help/tex/Domain_Crontab_Entries.tex, revision 1.4

1.4     ! raeburn     1: \label{Domain_Crontab_Entries}
1.1       raeburn     2: When LON-CAPA is installed a file named loncapa is written to /etc/cron.d.
                      3: The frequency and timing of execution of scripts included in this
                      4: loncapa crontab file can be modified to suit the needs of your domain.
                      5: The scripts, which are all run as the user 'www', are as follows: 
                      6: 
                      7: \begin{itemize}
1.2       raeburn     8: \item \emph{/home/httpd/perl/loncron} run daily at 5.10 am This updates
                      9: the list of servers in the LON-CAPA cluster to which your domain belongs.
                     10: All servers in this list should be contactable, and will have the
                     11: ability to host user sessions for users in the domain, as well as
                     12: being available, if designated as library servers, to return responses
                     13: to remote searches for files housed there which have been contributed
                     14: to the LON-CAPA content repository. Connections to all servers are
                     15: re-evaluated by loncron, in case some machines had become unavailable
                     16: within the last 24 hours, and had therefore been flagged as temporarily
                     17: offline.
                     18: \item \emph{/usr/local/loncapa/bin/CHECKRPMS} runs every other day at 3.10
                     19: am. This file automates the process of checking for available updates
                     20: to LON-CAPA systems. The distprobe script, installed as a part of
                     21: LON-CAPA, is used to determine the Linux distribution installed on
                     22: the server, which in turn dictates which utility (yum, up2date, you
                     23: or rug) is called to perform the package check.
                     24: \item \emph{/home/httpd/perl/searchcat.pl} run every other day at 1.10 am
1.3       raeburn    25: traverses the LON-CAPA resource directory in a domain and gathers
                     26: metadata which are entered into a SQL database. The script will repopulate
                     27: and refresh the metadata database used for the searching the resource
                     28: catalog. The script also refreshes and repopulates database tables
                     29: used to store metadata for publicly accessible portfolio files, and
                     30: user information needed for user searches in a LON-CAPA domain. 
1.2       raeburn    31: \item \emph{/home/httpd/perl/cleanup\_database.pl} run daily at 2.13 am
1.1       raeburn    32: drops tables from the LON-CAPA MySQL database if their comment is
1.2       raeburn    33: 'temporary' and they have not been modified in a given time (default
1.1       raeburn    34: is 2 days).
1.2       raeburn    35: \item \emph{/home/httpd/perl/cleanup\_file\_caches.pl} run daily at 1.05
                     36: am removes temporary files from the LON-CAPA print spool, the multidownload
                     37: zip spool, and userfiles cache.
                     38: \item \emph{/home/httpd/perl/Autoenroll.pl} run daily at 1.30 am updates
                     39: classlists for any LON-CAPA courses for which auto-enrollment is active,
                     40: if enabled in the domain. A conduit needs to have been established
                     41: to institutional course roster information. 
                     42: \item \emph{/home/httpd/perl/Autoupdate.pl} run daily at 3.30 am can reconcile
                     43: first name, last name etc. information stored in LON-CAPA with authoritative
                     44: data available from an institutional directory. A conduit needs to
                     45: have been established to the institutional data source. 
1.1       raeburn    46: \end{itemize}
1.3       raeburn    47: