Segments not appearing in local deep-storage (PVC)

[prajapati-rasik]

Deployment : Kubernetes cluster (with zookeeper ) using druid-operator
Metadata store : mysql
Deep storage : Multi-attach PVC
Druid version : 30.0.0

I am running a cluster using tiny-cluster.yaml with addition to 3 middlemanagers node. When i am doing batch ingestion through tasks api, segment creation and publishing is not happing, though the task is showing success. Deepstorage PVC is empty, historical loaddropqueue is also empty and I don't see any errors in logs also.

I am able to create directories in PVC, so don't think its problem with PVC. What am i doing wrong here?

Also I am ingesting a json only using a python library. Is there any guidelines on correct way to format data to pass it in ingestion schema?

In druid-io/druid-operator#277, I see that it is suggested to use hdfs instead of local for clustered environment, is it still the case?

NAME                                                 READY   AGE
statefulset.apps/druid-tiny-cluster-brokers          1/1     9m50s
statefulset.apps/druid-tiny-cluster-coordinators     1/1     9m19s
statefulset.apps/druid-tiny-cluster-historicals      1/1     13m
statefulset.apps/druid-tiny-cluster-middlemanagers   3/3     13m
statefulset.apps/druid-tiny-cluster-routers          1/1     9m18s
statefulset.apps/tiny-cluster-zk                     1/1     3h30m