Upgrade storage space for elasticsearch

Elastic Orchestration Elastic Cloud on Kubernetes (ECK)
1

I try to increase the capacity of my persistant volume for elasticsearch.

However this seems to be not so straightforward, as explained in this article:

https://www.elastic.co/guide/en/cloud-on-k8s/current/k8s-orchestration.html#k8s-orchestration-limitations

I'm new to Kubernetes, and I struggle to make sense of this article.

The article suggest to rename NodeSet, but I can't find any resources of type NodeSet in my cluster.
And how can renaming a nodeset create a new StatfulSet with increased storage capacity?

Many thanks!

1 Like
2

I do try this before ...
Modify the Node Set Name and New Size , then reapply the yaml

>     ...
>               nodeSets:
>               #Define the Node nameing and number of size 
>               - name: master-1   # Modify This Name
>                 count: 3  
>                 #Define Using PVC and Size
>                 volumeClaimTemplates:
>                 - metadata:
>                     name: elasticsearch-data
>                   spec:
>                     accessModes:
>                     - ReadWriteOnce
>                     resources:
>                       requests:
>                         storage: 500Gi  #Modify your new size
>                     storageClassName: standard
>                 config:
>                   #Define the role for the node
>                   node.master: true
>         ...
2 Likes
3

I am interested in how to do it as well!

4

The nodeSet in the doc you referenced is an item in the spec.nodeSets part of the Elasticsearch resource. There's an example in the quickstart:
https://www.elastic.co/guide/en/cloud-on-k8s/current/k8s-quickstart.html

1 Like
5

Thank you, this solved my problem!

6

Do Increasing the disk's storage space by this method, takes care of the existing data in ElasticSearch node ?