Added MetricLookback setting#9045
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sspaink merged 5 commits intoinfluxdata:masterfrom Apr 13, 2021
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ivorybilled
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sspaink
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reimda
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Apr 28, 2021
* Added MetricLookback setting * Fixed go mod issue (cherry picked from commit 5f26582)
arstercz
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* Added MetricLookback setting * Fixed go mod issue (cherry picked from commit 5f26582)
arstercz
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Aug 28, 2025
* Added MetricLookback setting * Fixed go mod issue
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Resolved issues
#8316
Description
In versions 6.7 and 7.0 of vCenter, certain metrics can be have significant reporting delays in some cases. By default, the vSphere plugin looks three collection cycles back for delayed metrics. Since non-realtime metrics are collected at a 5 minute cycle, this translates to 15 minutes. However, we've seen metrics delayed as much as 40 minutes, so looking back only 15 minutes caused all the samples to be missed.
To mitigate this, we made the lookback period configurable. The
metric_lookbacksetting determines how many vCenter collection periods (5 minutes) to look back. We've tested setting it to 8, which allowed us to collect all metrics.Since a very long lookback could cause performance issues, this setting should be used with caution. Currently, we believe that, if you are experiencing issues with missing metrics, setting it to 8 should be sufficient.