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Add config options for Cassandra (#1887)

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Miouge1
2017-09-17 12:04:34 +02:00
committed by Reinhard Nägele
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commit bf31aa96aa
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incubator/cassandra/README.md
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@@ -20,7 +20,7 @@ helm delete --purge "cassandra"
```
## Persist data
You need to create `StorageClass` before able to persist data in persistent volume.
You need to create `StorageClass` before able to persist data in persistent volume.
To create a `StorageClass` on Google Cloud, run the following
```bash
@@ -66,6 +66,33 @@ nodes:
cloud.google.com/gke-nodepool: pool-db
```
## Configuration
The following tables lists the configurable parameters of the PostgresSQL chart and their default values.
| Parameter | Description | Default |
| ----------------------- | --------------------------------------------- | ---------------------------------------------------------- |
| `image.repo` | `cassandra` image repository | `cassandra` |
| `image.tag` | `cassandra` image tag | `3` |
| `image.pullPolicy` | Image pull policy | `Always` if `imageTag` is `latest`, else `IfNotPresent` |
| `config.cluster_name` | Username of new user to create. | `cassandra` |
| `config.cluster_size` | Password for the new user. | `3` |
| `config.seed_size` | Name for new database to create. | `2` |
| `config.num_tokens` | Initdb Arguments | `256` |
| `config.dc_name` | Initdb Arguments | `DC1` |
| `config.rack_name` | Initdb Arguments | `RAC1` |
| `config.endpoint_snitch` | Initdb Arguments | `SimpleSnitch` |
| `config.max_heap_size` | Initdb Arguments | `2048M` |
| `config.heap_new_size` | Initdb Arguments | `512M` |
| `config.ports.cql` | Initdb Arguments | `9042` |
| `config.ports.thrift` | Initdb Arguments | `9160` |
| `persistence.enabled` | Use a PVC to persist data | `true` |
| `persistence.storageClass` | Storage class of backing PVC | `nil` (uses alpha storage class annotation) |
| `persistence.accessMode` | Use volume as ReadOnly or ReadWrite | `ReadWriteOnce` |
| `persistence.size` | Size of data volume | `10Gi` |
| `resources` | CPU/Memory resource requests/limits | Memory: `4Gi`, CPU: `2` |
| `service.type` | k8s service type exposing ports, e.g. `NodePort`| `ClusterIP` |
## Scale cassandra
When you want to change the cluster size of your cassandra, you can use the helm upgrade command.