mirror of https://github.com/BOINC/boinc.git
31 lines
868 B
HTML
31 lines
868 B
HTML
<h2>Watchdogs</h2>
|
|
|
|
<p>
|
|
A <b>watchdog</b> is a mechanism for detecting system states
|
|
(e.g. full filesystems, database failures, etc.)
|
|
that require immediate attention by project staff.
|
|
Typically the desired response to such a condition is
|
|
to notify a pager, sending a short text description.
|
|
|
|
<p>
|
|
BOINC provides a framework for defining watchdogs:
|
|
|
|
<ul>
|
|
<li>
|
|
A set of <b>watchdog scripts</b> are run from cron.
|
|
Each script checks for an error condition,
|
|
and present, it appends a descriptive line to an error log file.
|
|
An example is <b>wd_nresults_changing.php</b>,
|
|
which makes sure that the number of results changes.
|
|
|
|
<li>
|
|
The script <b>wd.php</b>, also run from cron,
|
|
scans the error log files.
|
|
If any has been updated since the last run,
|
|
it sends email to a set of recipients,
|
|
containing the last line of the file.
|
|
|
|
</ul>
|
|
|
|
These files are in the sched/ directory.
|