vmware/pyvmomi-community-samples

refresh rate for Performance Manager

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#615 opened on Nov 7, 2019

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help wanted

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Description

hi I tried the "vm_perf_example.py" in the pyvmomi-community-samples, and it was okay, but there are two problems: in some time periods it just returns an array of null just like below: (vim.PerformanceManager.EntityMetricBase) [ (vim.PerformanceManager.EntityMetric) { dynamicType = <unset>, dynamicProperty = (vmodl.DynamicProperty) [], entity = 'vim.VirtualMachine:vm-2619', sampleInfo = (vim.PerformanceManager.SampleInfo) [], value = (vim.PerformanceManager.MetricSeries) [] } ] and the other problem, it returns data in periods of 300s (5 minutes)! how can we set refresh rate to something like 30s

Contributor guide

Research direction
Examine the vSphere Performance Manager API documentation and pyVmomi source code to understand why QueryPerf returns empty sampleInfo and value for certain intervals. Look into the 'interval' parameter and how to set it to a custom value (e.g., 30 seconds). Check if the issue is due to insufficient historical data or permission settings.
Tech stack
python
Domain
api
Issue type
Bug
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
2
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
Half day
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
Active
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Mostly clear
Prerequisites
PythonpyVmomivSphere basics
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
60