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Werk #5445: apc_symmetra_output: Fixed exception 'could not convert string to float' during discovery

Component Checks & agents
Title apc_symmetra_output: Fixed exception 'could not convert string to float' during discovery
Date Nov 13, 2017
Level Trivial Change
Class Bug Fix
Compatibility Compatible - no manual interaction needed
Checkmk versions & editions
1.5.0i1 Checkmk Community, Checkmk Pro, Checkmk Ultimate MT
1.4.0p19 Checkmk Community, Checkmk Pro, Checkmk Ultimate MT

Some devices do not provide all values for 'voltage', 'current' or 'output load' and might be empty strings. This caused above exception during discovery. Fixed that.

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