zfs: Log mib when sysctl read fails on FreeBSD
When the zfs collector fails on FreeBSD it doesn't log which `mib` triggered the issue. This makes diagnostics hard. Incompatibilities in the list of supported mibs is not uncommon with major os updates. By adding this change, it'll be easier for users to report the specific mib that is triggering the failure. Related to #2847 Signed-off-by: Daniel Kimsey <90741+dekimsey@users.noreply.github.com>
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@ -273,7 +273,7 @@ func (c *zfsCollector) Update(ch chan<- prometheus.Metric) error {
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v, err := m.Value()
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v, err := m.Value()
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if err != nil {
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if err != nil {
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// debug logging
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// debug logging
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level.Debug(c.logger).Log("name", m.name, "couldn't get sysctl:", err)
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level.Debug(c.logger).Log("name", m.name, "mib", m.mib, "couldn't get sysctl:", err)
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continue
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continue
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}
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}
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