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[bitnami/elasticsearch] Use 3 master nodes by default (#6587)

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* Default master replicas to 3

* Document default master replicas

* Update chart version. Indicate new feature.

* Link to elasticsearch documentation in README.md
This commit is contained in:
Iaroslav Sheptykin
2021-06-15 10:11:33 +02:00
committed by GitHub
parent c6aeae0a3e
commit 65735b2a8e
3 changed files with 7 additions and 4 deletions
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2
bitnami/elasticsearch/Chart.yaml
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@@ -25,4 +25,4 @@ name: elasticsearch
sources:
- https://github.com/bitnami/bitnami-docker-elasticsearch
- https://www.elastic.co/products/elasticsearch
version: 15.3.1
version: 15.4.0

2
bitnami/elasticsearch/README.md
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@@ -91,7 +91,7 @@ The following table lists the configurable parameters of the Elasticsearch chart
| Parameter | Description | Default |
|---------------------------------------------------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------|--------------------------------------------------------------|
| `master.name` | Master-eligible node pod name | `master` |
| `master.replicas` | Desired number of Elasticsearch master-eligible nodes | `2` |
| `master.replicas` | Desired number of Elasticsearch master-eligible nodes. Consider using an odd number of master nodes to prevent "split brain" situation. See: https://www.elastic.co/guide/en/elasticsearch/reference/7.x/modules-discovery-voting.html#_even_numbers_of_master_eligible_nodes | `3` |
| `master.updateStrategy.type` | Update strategy for Master statefulset | `RollingUpdate` |
| `master.heapSize` | Master-eligible node heap size | `128m` |
| `master.service.type` | Kubernetes Service type (master-eligible nodes) | `ClusterIP` |

7
bitnami/elasticsearch/values.yaml
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@@ -186,9 +186,12 @@ extraEnvVarsSecret:
##
master:
name: master
## Number of master-eligible node(s) replicas to deploy
## Number of master-eligible node(s) replicas to deploy.
## "There should normally be an odd number of master-eligible nodes in a cluster" to address "split brain" scenario.
## https://www.elastic.co/guide/en/elasticsearch/reference/7.x/modules-discovery-voting.html#_even_numbers_of_master_eligible_nodes
## https://www.elastic.co/guide/en/elasticsearch/reference/7.x/modules-discovery-quorums.html#modules-discovery-quorums
##
replicas: 2
replicas: 3
## updateStrategy for ElasticSearch master statefulset
## ref: https://kubernetes.io/docs/concepts/workloads/controllers/statefulset/#update-strategies