12.8. Background tasks

Trisul installs the following background tasks

Task Name	Run Frequency	Description
cronmailreport	15 Mins	Generates scheduled reports and mails them out
tca_dispatch	5 Mins	Summarizes threshold crossing alerts into an email and sends it out
data_refresh	30 Mins	Automatically refresh plugins data (GeoIP, Badfellas blacklists, URLFilter database)
clean_wt_tmp	12:00:00 AM	Removes 7 days older file from webtrisul tmp direcroty
clean_persists	12:00:00 AM	Removes 10% resolved keys from persists key table to retain db size
threshold_update_bands	12:15:00 AM	Updates the trisul training data
summary_counts_update	1:00:00 AM	Updates flow,resource,fts count

12.8.1 View or modify

Trisul uses the regular unix crontab to schedule background tasks.

To view crontab list

crontab -l


##__webtrisul_pdf_report__
*/15 * * * * /usr/local/share/webtrisul/lib/tasks/rbenv_exec.sh /usr/local/share/webtrisul/lib/tasks/cronmailreport.rb 
##__webtrisul_tca_report__
*/5  * * * * /usr/local/share/webtrisul/lib/tasks/rbenv_exec.sh /usr/local/share/webtrisul/lib/tasks/tca_dispatch.rb 
##__data_refresh__
*/30 * * * * /usr/local/share/webtrisul/lib/tasks/rbenv_exec.sh /usr/local/share/webtrisul/lib/tasks/data_refresh.rb 
##__clean_wt_tmp__
0 0 * * * /usr/local/share/webtrisul/lib/tasks/rbenv_exec.sh /usr/local/share/webtrisul/lib/tasks/clean_wt_tmp.rb 
##__clean_persists__
0 0 * * * /usr/local/share/webtrisul/lib/tasks/rbenv_exec.sh /usr/local/share/webtrisul/lib/tasks/clean_persists.rb 
##__threshold_update_bands__
15 0 * * * /usr/local/share/webtrisul/lib/tasks/rbenv_exec.sh /usr/local/share/webtrisul/lib/tasks/threshold_update_bands.rb 
##__summary_counts_update__
0 1 * * * /usr/local/share/webtrisul/lib/tasks/rbenv_exec.sh /usr/local/share/webtrisul/lib/tasks/summary_counts_update.rb

To modify crontab list

crontab -e

12.8.2 Background tasks log files

All the Trisul background tasks send its output to the log file located at
/usr/local/share/webtrisul/logs/back_tasks.log

You can also access these logs from the web interface

Select Webadmin → Manage → Web Server Logs →Background tasks log