Zabbix 4 Network Monitoring - Third Edition

Alerting on log data

With the data coming in, let's talk about alerting on it with triggers. There are a few things somewhat different than the thresholds and similar numeric comparisons that we've used in triggers so far.

If we have a log item that's collecting all lines and we want to alert on the lines containing some specific string, there are several trigger functions of potential use:

• str(): This checks for a substring; for example, if we're collecting all values, this function could be used to alert on errors: str(error)
• regexp: Similar to the str() function, this allows us to specify a regular expression to match
• iregexp: This is a case-insensitive version of regexp()

These functions only work on a single line; it's not possible ...