Annotation of loncom/html/adm/help/tex/Domain_Crontab_Entries.tex, revision 1.6
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).
1.6 ! raeburn 35: \item \emph{/home/httpd/perl/refresh\_courseids\_db.pl} run daily at 2.50 am
1.5 raeburn 36: refreshes the database file (stored on a library server) queried when a
37: fast lookup is needed for information about courses housed on the server. Course information includes the minimum LON-CAPA version needed to support the resourcs and/or settings used in the course.
1.2 raeburn 38: \item \emph{/home/httpd/perl/cleanup\_file\_caches.pl} run daily at 1.05
39: am removes temporary files from the LON-CAPA print spool, the multidownload
40: zip spool, and userfiles cache.
41: \item \emph{/home/httpd/perl/Autoenroll.pl} run daily at 1.30 am updates
42: classlists for any LON-CAPA courses for which auto-enrollment is active,
43: if enabled in the domain. A conduit needs to have been established
44: to institutional course roster information.
45: \item \emph{/home/httpd/perl/Autoupdate.pl} run daily at 3.30 am can reconcile
46: first name, last name etc. information stored in LON-CAPA with authoritative
47: data available from an institutional directory. A conduit needs to
1.5 raeburn 48: have been established to the institutional data source.
49: \item \emph{/home/httpd/perl/Autocreate.pl} run daily at 2.30 am, checks for requests for creation of official courses, queued pending validation of instructor of record status. Also creates any pending course requests made
50: using legacy web forms which store XML-based course descriptions in a ``pending'' directory.
51:
1.1 raeburn 52: \end{itemize}
1.3 raeburn 53:
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