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https://github.com/equelin/vsanmetrics
Export VMware vSAN metrics to InfluxDB
https://github.com/equelin/vsanmetrics
influxdb vmware vsan
Last synced: 3 months ago
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Export VMware vSAN metrics to InfluxDB
- Host: GitHub
- URL: https://github.com/equelin/vsanmetrics
- Owner: equelin
- License: apache-2.0
- Created: 2018-05-04T07:58:23.000Z (over 6 years ago)
- Default Branch: master
- Last Pushed: 2020-12-26T23:08:43.000Z (almost 4 years ago)
- Last Synced: 2024-05-01T05:31:53.928Z (7 months ago)
- Topics: influxdb, vmware, vsan
- Language: Python
- Homepage:
- Size: 60.5 KB
- Stars: 15
- Watchers: 6
- Forks: 8
- Open Issues: 5
-
Metadata Files:
- Readme: README.md
- License: LICENSE
Awesome Lists containing this project
- awesome-vsan - vsanmetrics
README
# vsanmetrics
vsanmetrics is a tool written in Python for collecting usage and performance metrics and health status from a VMware vSAN cluster and translating them in [InfluxDB's line protocol](https://github.com/influxdata/telegraf/blob/master/docs/DATA_FORMATS_INPUT.md).
It can be useful to send metrics in a time-serie database like [InfluxDB](https://www.influxdata.com/) or [Graphite](https://graphiteapp.org/) with the help of [Telegraf](https://www.influxdata.com/time-series-platform/telegraf/) and then display metrics in [Grafana](https://grafana.com/).
A detailed list of all entities types and metrics is available [here](entities.md)
## Prerequisites
- Python 3 (This script has been tested with python 3.6.7)
- [Pyvmomi](https://github.com/vmware/pyvmomi#installing) python's librairy
> You can install the librairies with pip -> `pip install -r requirements.txt`
- [VMware vSAN Management SDK for python](https://code.vmware.com/web/sdk/6.7.0/vsan-python)
> To use the vSAN Python bindings, download the SDK and place `vsanmgmtObjects.py` and `vsanapiutis.py` on a path where your Python applications can import library or in the same folder than `vsanmetrics.py`.
## Installation
- Download the script `vsanmetrics.py`
- On linux box, make the script executable
```bash
% chmod +x ./vsanmetrics
```
- Run the script with the -h parameter to check if it works
```bash
% ./vsanmetrics -h
usage: vsanmetrics.py [-h] -s VCENTER [-o PORT] -u USER [-p PASSWORD] -c
CLUSTERNAME [--performance] [--capacity] [--health]
[--skipentitytypes SKIPENTITYTYPES]
Export vSAN cluster performance and storage usage statistics to InfluxDB line
protocol
optional arguments:
-h, --help show this help message and exit
-s VCENTER, --vcenter VCENTER
Remote vcenter to connect to
-o PORT, --port PORT Port to connect on
-u USER, --user USER User name to use when connecting to vcenter
-p PASSWORD, --password PASSWORD
Password to use when connecting to vcenter
-c CLUSTERNAME, --cluster_name CLUSTERNAME
Cluster Name
--performance Output performance metrics
--capacity Output storage usage metrics
--health Output cluster health status
--skipentitytypes SKIPENTITYTYPES
List of entity types to skip. Separated by a comma
--cachefolder CACHEFOLDER
Folder where the cache files are stored
--cacheTTL CACHETTL TTL of the object inventory cache
```
## Usage
Run the script against a vSAN cluster to gather the storage usage statistics.
```bash
% ./vsanmetrics.py -s vcenter.example.com -u [email protected] -p MyAwesomePassword -c VSAN-CLUSTER --capacity
capacity_global,scope=global,vcenter=vcenter.example.com,cluster=VSAN-CLUSTER totalCapacityB=7200999211008,freeCapacityB=1683354550260 1525422314084382976
capacity_summary,scope=summary,vcenter=vcenter.example.com,cluster=VSAN-CLUSTER temporaryOverheadB=0,physicalUsedB=2636212338688,primaryCapacityB=2688980877312,usedB=5380734189568,reservedCapacityB=3607749040540,overReservedB=2744521850880,provisionCapacityB=6986210377728,overheadB=2828663783436 1525422314084382976
capacity_vmswap,scope=vmswap,vcenter=vcenter.example.com,cluster=VSAN-CLUSTER temporaryOverheadB=0,physicalUsedB=8422162432,primaryCapacityB=177330978816,usedB=355240771584,reservedCapacityB=355089776640,overReservedB=346818609152,overheadB=177909792768 1525422314084382976
capacity_checksumOverhead,scope=checksumOverhead,vcenter=vcenter.example.com,cluster=VSAN-CLUSTER temporaryOverheadB=0,physicalUsedB=0,primaryCapacityB=0,usedB=8858370048,reservedCapacityB=0,overReservedB=0,overheadB=8858370048 1525422314084382976
```
Run the script against a vSAN cluster to gather performance statistics.
```bash
% ./vsanmetrics.py -s vcenter.example.com -u [email protected] -p MyAwesomePassword -c VSAN-CLUSTER --performance
cluster-domclient,cluster=VSAN-CLUSTER,vcenter=vcenter.example.com,uuid=52b29fa6-9cb9-6d67-31ed-4bf8f2dd9294 oio=7.0,throughputRead=40883.0,latencyAvgWrite=11218.0,latencyAvgRead=985.0,iopsRead=1.0,throughputWrite=2819.0,congestion=0.0,iopsWrite=0.0 1525462200000000000
cluster-domcompmgr,cluster=VSAN-CLUSTER,vcenter=vcenter.example.com,uuid=52b29fa6-9cb9-6d67-31ed-4bf8f2dd9294 oio=6.0,throughputRecWrite=0.0,latencyAvgRecWrite=0.0,throughputRead=45309.0,latencyAvgWrite=1335.0,tputResyncRead=0.0,latencyAvgRead=935.0,iopsRead=1.0,throughputWrite=14476.0,latAvgResyncRead=0.0,iopsResyncRead=0.0,iopsRecWrite=0.0,iopsWrite=2.0,congestion=0.0 1525462200000000000
host-domclient,cluster=VSAN-CLUSTER,vcenter=vcenter.example.com,hostname=esx01.example.com,uuid=5ae60a2b-fe13-25dd-1f19-005056a3a442 oio=1.0,throughputRead=95.0,latencyAvgWrite=0.0,latencyAvgRead=340.0,iopsRead=0.0,clientCacheHitRate=0.0,throughputWrite=0.0,congestion=0.0,iopsWrite=0.0,clientCacheHits=0.0 1525462200000000000
host-domclient,cluster=VSAN-CLUSTER,vcenter=vcenter.example.com,hostname=esx03.example.com,uuid=5ae750e2-bc6d-487b-1283-005056a38be2 oio=6.0,throughputRead=40788.0,latencyAvgWrite=11218.0,latencyAvgRead=1000.0,iopsRead=1.0,clientCacheHitRate=0.0,throughputWrite=2819.0,congestion=0.0,iopsWrite=0.0,clientCacheHits=0.0 1525462200000000000
host-domclient,cluster=VSAN-CLUSTER,vcenter=vcenter.example.com,hostname=esx02.example.com,uuid=5ae7229f-771d-1091-ffe7-005056a35f01 oio=0.0,throughputRead=0.0,latencyAvgWrite=0.0,latencyAvgRead=0.0,iopsRead=0.0,clientCacheHitRate=0.0,throughputWrite=0.0,congestion=0.0,iopsWrite=0.0,clientCacheHits=0.0 1525462200000000000
```
Run the script against a vSAN cluster to gather performance statistics and skip some entity types like virtual machines or VSCSI entities:
```bash
% ./vsanmetrics.py -s vcenter.example.com -u [email protected] -p MyAwesomePassword -c VSAN-CLUSTER --performance --skipentitytypes virtual-machine,vscsi
cluster-domclient,cluster=VSAN-CLUSTER,vcenter=vcenter.example.com,uuid=52b29fa6-9cb9-6d67-31ed-4bf8f2dd9294 oio=7.0,throughputRead=40883.0,latencyAvgWrite=11218.0,latencyAvgRead=985.0,iopsRead=1.0,throughputWrite=2819.0,congestion=0.0,iopsWrite=0.0 1525462200000000000
cluster-domcompmgr,cluster=VSAN-CLUSTER,vcenter=vcenter.example.com,uuid=52b29fa6-9cb9-6d67-31ed-4bf8f2dd9294 oio=6.0,throughputRecWrite=0.0,latencyAvgRecWrite=0.0,throughputRead=45309.0,latencyAvgWrite=1335.0,tputResyncRead=0.0,latencyAvgRead=935.0,iopsRead=1.0,throughputWrite=14476.0,latAvgResyncRead=0.0,iopsResyncRead=0.0,iopsRecWrite=0.0,iopsWrite=2.0,congestion=0.0 1525462200000000000
host-domclient,cluster=VSAN-CLUSTER,vcenter=vcenter.example.com,hostname=esx01.example.com,uuid=5ae60a2b-fe13-25dd-1f19-005056a3a442 oio=1.0,throughputRead=95.0,latencyAvgWrite=0.0,latencyAvgRead=340.0,iopsRead=0.0,clientCacheHitRate=0.0,throughputWrite=0.0,congestion=0.0,iopsWrite=0.0,clientCacheHits=0.0 1525462200000000000
host-domclient,cluster=VSAN-CLUSTER,vcenter=vcenter.example.com,hostname=esx03.example.com,uuid=5ae750e2-bc6d-487b-1283-005056a38be2 oio=6.0,throughputRead=40788.0,latencyAvgWrite=11218.0,latencyAvgRead=1000.0,iopsRead=1.0,clientCacheHitRate=0.0,throughputWrite=2819.0,congestion=0.0,iopsWrite=0.0,clientCacheHits=0.0 1525462200000000000
host-domclient,cluster=VSAN-CLUSTER,vcenter=vcenter.example.com,hostname=esx02.example.com,uuid=5ae7229f-771d-1091-ffe7-005056a35f01 oio=0.0,throughputRead=0.0,latencyAvgWrite=0.0,latencyAvgRead=0.0,iopsRead=0.0,clientCacheHitRate=0.0,throughputWrite=0.0,congestion=0.0,iopsWrite=0.0,clientCacheHits=0.0 1525462200000000000
```
## Cache
The script will try to maintain an inventory of the vSAN infrastructure in a cache. There are two major benefits:
- Reducing the global execution time of the script for larger environnement
- Avoid errors when a host is disconnected wilhe the script is executing
By default cache validity duration is 60 minutes. You can choose your own duration with the parameter `--cacheTTL`. Cache files are stored where the script is executed, you can modify this behavior with parameter `--cachefolder`.
```bash
% ./vsanmetrics.py -s vcenter.example.com -u [email protected] -p MyAwesomePassword -c VSAN-CLUSTER --performance --cacheTTL 300 --cachefolder /tmp
```
## List of available entities types
A more detailed list of entities and metrics is available [here](entities.md)
|Name|Description|
|---|---|
|cluster-domclient|Metrics about clusters in the perspective of VM consumption.|
|cluster-domcompmgr|Metrics about clusters in the perspective of vSAN backend.|
|host-domclient|Metrics about hosts in the perspective of VM consumption|
|host-domcompmgr|Metrics about hosts in the perspective of vSAN backend.|
|cache-disk|Metrics about Cache-tier disks|
|capacity-disk|Metrics about Capacity-tier disks|
|disk-group|Metrics about disk groups.|
|vscsi|Metrics for Virtual SCSI of virtual machines|
|virtual-machine|Metrics for virtual machines|
|virtual-disk|Metrics for virtual disks.|
|vsan-vnic-net|Metrics for vSAN VMkernel Network Adapter.|
|vsan-host-net|Metrics for vSAN Host Network.|
|vsan-pnic-net|Metrics for vSAN physical NIC.|
|vsan-iscsi-host|Metrics for all vSAN iSCSI targets on this ESXi host.|
|vsan-iscsi-target|Metrics for all LUNs on a vSAN iSCSI target.|
|vsan-iscsi-lun|Metrics for a vSAN iSCSI LUN.|
## Using vsanmetrics with Telegraf
The `exec` input plugin of Telegraf executes the `commands` on every interval and parses metrics from their output in any one of the accepted [Input Data Formats](https://github.com/influxdata/telegraf/blob/master/docs/DATA_FORMATS_INPUT.md).
> Don't forget to configure Telegraf to output data to a [time series database](https://docs.influxdata.com/telegraf/v1.6/concepts/data_formats_output/) !
`vsanmetrics` output the metrics in InfluxDB's line protocol. Telegraf will parse them and send them to any data format configured in the [outputs plugins](https://docs.influxdata.com/telegraf/v1.6/plugins/outputs/).
`vsanmetrics` and and the Python's librairies should be available by the user who run the Telegraf service. (typically root on Linux boxes...).
> TIP: On Linux, install the librairies with the command `sudo -H pip install -r requirements.txt` to make it available to the root user.
Here is an example of a working telegraf's config file:
```Toml
###############################################################################
# INPUT PLUGINS #
###############################################################################
[[inputs.exec]]
# Shell/commands array
# Full command line to executable with parameters, or a glob pattern to run all matching files.
commands = ["/path/to/script/vsanmetrics.py -s vcenter01.example.com -u [email protected] -p MyAwesomePassword -c VSAN-CLUSTER --performance --capacity --health"]
# Timeout for each command to complete.
timeout = "60s"
# Data format to consume.
# NOTE json only reads numerical measurements, strings and booleans are ignored.
data_format = "influx"
interval = "300s"
```
If needed, you can specify more than one input plugin. It might be useful if you want to gather different statistics with different intervals or if you want to query different vSAN clusters.
```Toml
###############################################################################
# INPUT PLUGINS #
###############################################################################
[[inputs.exec]]
# Shell/commands array
# Full command line to executable with parameters, or a glob pattern to run all matching files.
commands = ["/path/to/script/vsanmetrics.py -s vcenter01.example.com -u [email protected] -p MyAwesomePassword -c VSAN-CLUSTER --performance --capacity --health"]
# Timeout for each command to complete.
timeout = "60s"
# Data format to consume.
# NOTE json only reads numerical measurements, strings and booleans are ignored.
data_format = "influx"
interval = "300s"
[[inputs.exec]]
# Shell/commands array
# Full command line to executable with parameters, or a glob pattern to run all matching files.
commands = ["/path/to/script/vsanmetrics.py -s vcenter02.example.com -u [email protected] -p MyAwesomePassword -c VSAN-CLUSTER --performance --capacity --health"]
# Timeout for each command to complete.
timeout = "60s"
# Data format to consume.
# NOTE json only reads numerical measurements, strings and booleans are ignored.
data_format = "influx"
interval = "300s"
```
# Author
**Erwan Quélin**
-
-
# License
Copyright 2018 Erwan Quelin and the community.
Licensed under the Apache License 2.0.