28 lines
1.4 KiB
Markdown
28 lines
1.4 KiB
Markdown
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## Overview
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scale-test is a collection of developer scripts that are used for scaling a cluster to a certain amount of volumes
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while monitoring the time required to complete these actions.
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`sample.sh` can be used to quickly see how long it takes for the requested amount of volumes to be up and usable.
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`scale-test.py` can be used to create the amount of requested statefulsets based on the `statefulset.yaml` template,
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as well as retrieve detailed timing information per volume.
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### scale-test.py
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scale-test.py watches `pod`, `pvc`, `va` events (ADDED, MODIFIED, DELETED).
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Based on that information we can calculate the time of actions for each individual pod.
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In additional scale-test.py can also be used to create a set of statefulset deployment files.
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based on the `statefulset.yaml` with the following VARIABLES substituted based on the current sts index.
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`@NODE_NAME@` - schedule each sts on a dedicated node
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`@STS_NAME@` - also used for the volume-name
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make sure to set the correct CONSTANT values in scale-test.py before running.
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### sample.sh
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sample.sh can be used to scale to a requested amount of volumes based on the existing statefulsets
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and node count for the current cluster.
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One can pass the requested amount of volumes as well as the node count of the current cluster.
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example for 1000 volumes and 100 nodes: `./sample.sh 1000 100`
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this expects there to be a statefulset deployment for each node.
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