Changes between Version 4 and Version 5 of WatchDog

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Author:
davea (IP: 128.32.18.181)
Timestamp:
02/11/08 10:05:43 (2 years ago)
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  • WatchDog

    v4 v5  
    33[[T(DesignDocument)]] 
    44 
    5 A '''watchdog''' 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. 
     5A '''watchdog''' is a mechanism for detecting system states 
     6(e.g. full filesystems, database failures, etc.) 
     7that require immediate attention by project staff. 
     8Typically the desired response to such a condition is to notify a pager, 
     9sending a short text description. 
    610 
    711BOINC provides a framework for defining watchdogs: 
    812 
    9  * A set of '''watchdog scripts''' 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 '''wd_nresults_changing.php''', which makes sure that the number of results changes. 
    10  * The script '''wd.php''', 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. 
     13 * A set of '''watchdog scripts''' are run as periodic tasks. Each script checks for an error condition, and present, it appends a descriptive line to an error log file. An example is '''wd_nresults_changing.php''', which makes sure that the number of results changes. 
     14 * The script '''watchdogs.php''', also run as a periodic task, scans the error log file. If it has been updated since the last run, it sends email to a set of recipients, containing the last line of the file. 
    1115 
    12 These files are in the sched/ directory. 
     16These files are in the html_ops/ directory. 
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