surahman commented on pull request #3725:
URL: https://github.com/apache/incubator-heron/pull/3725#issuecomment-962238294
Thank you @nicknezis that is very helpful info!
I think we can add two selector labels to the PVC:
```yaml
selector:
topology: <topology-name>
onDemand: true
```
Then we can form the `labelSelector` as:
```java
topology=<topology-name>,onDemand=true
```
I think this should be minimally specific enough to act as a candidate key
to select all PVC's associated with a specific topology.
As for the `Claim Name` I think we need something unique enough to not cause
collisions in the cluster:
```java
ondemand-[Topology Name]-[Volume-Name]
```
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