This is an Enterprise-only feature. Please install KubeDB Enterprise Edition to try this feature.
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This guide will give an overview on how KubeDB Autoscaler operator autoscales the Elasticsearch storage using
The Auto Scaling process consists of the following steps:
At first, a user creates a
Elasticsearch Custom Resource (CR).
KubeDB Community operator watches the
When the operator finds a
Elasticsearch CR, it creates required number of
StatefulSets and related necessary stuff like secrets, services, etc.
Each StatefulSet creates a Persistent Volume according to the Volume Claim Template provided in the statefulset configuration. This Persistent Volume will be expanded by the
KubeDB Enterprise operator.
Then, to set up storage autoscaling of the various nodes (ie. master, data, ingest, etc.) of the
Elasticsearch cluster the user creates a
ElasticsearchAutoscaler CRO with the desired configuration.
KubeDB Autoscaler operator watches the
KubeDB Autoscaler operator continuously watches persistent volumes of the databases to check if it exceeds the specified usage threshold.
If the usage exceeds the specified usage threshold, then
KubeDB Autoscaler operator creates a
ElasticsearchOpsRequest to expand the storage of the database.
KubeDB Enterprise operator watches the
KubeDB Enterprise operator will expand the storage of the database component as specified on the
In the next docs, we are going to show a step by step guide on Autoscaling storage of various Elasticsearch database components using