Initialize "crit" threshold to avoid crash in the case device doesn't provide a baseline #747
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… provide a baseline, in the "liebert_pump" plugin.
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General information
Extremely simple one-line fix to prevent the liebert_pump plugin from crashing due to "crit" being uninitialized, if the device does not have a threshold OID (as some in our environment do not).
Bug reports
To reproduce, add a Liebert CRAC that reports pump hours over SNMP but does not provide a critical threshold over SNMP. This will cause the plugin to crash. The attached CRAC2.txt is an SNMP walk that simulates one such device.
Proposed changes
This plugin should, at the very least, initialize the crit variable, which will be used later (but has a possibility to not be set in the following loop).