Monitoring Cluster-Enabled Quartz Instances

Monitoring Cluster--Enabled Quartz Instances

1. Verify that these lines are in the quartz.properties file. (They are present in new installations, but are not automatically added during upgrades.)

   <syntaxhighlight lang="perl" enclose="div">

org.quartz.scheduler.instanceId = AUTO ... org.quartz.jobStore.misfireThreshold = 60000 ... org.quartz.jobStore.isClustered = true org.quartz.jobStore.clusterCheckinInterval = 20000 </syntaxhighlight>

1. Download the monitor_quartz.pl (Perl) script from the platform downloads area.
2. Modify these values for your installation:

   • $hostname - Server name
   • $mysql_username - Database user name.
   • $mysql_password - Database password.
   • $mysql_host - Name of server the database is running on.

   • $config_file - Absolute path to tomcat/webapps/networking/WEB-INF/web.xml
   • $recipients - Comma-separated list of email addresses who will receive email status messages

   • ... - ...

3. Run the script on your server.

How it Works

The lines in the properties file cause quartz to put an entry into the relationals.QRTZ_SCHEDULER_STATE table in the database. The script checks the timestamp to verify that the last stamp was within 5 minutes. (Quartz should be running once a minute. If it hasn't run in five minutes, it is considered to be down.)