The database file was locked when the orientdb cluster was created on k8s

[xiashengjie]

I am using fluid and juicefilesystem on k8s to separate storage and storage of distributed orientdb cluster. Now three databases of orientdb Pods are using the same PVC. After starting one pod, the remaining pods cannot be started, indicating that the database files are locked.
How should I configure to be able to use the same PVC?

[xiashengjie]

My yaml file is as follows
apiVersion: apps/v1
kind: StatefulSet
metadata:
name: orientdb
namespace: default
labels:
app: orientdb
spec:
selector:
matchLabels:
app: orientdb
replicas: 3
serviceName: orientdb
template:
metadata:
labels:
app: orientdb
orientdb-cluster-member: "true"
spec:
serviceAccountName: hazelcast-k8s
terminationGracePeriodSeconds: 30
containers:
- name: orientdb
command: ["sh", "-c", "rm /dev/random; mknod /dev/random c 1 9; dserver.sh -DkubernetesNamespace=default;cp -r /opt/fluid_jfs_orientdb/orientdbconfig/* /orientdb/config/"]
image: orientdb:3.2.15
imagePullPolicy: Always
env:
- name: ORIENTDB_NODE_NAME
value: orientdb
ports:
- containerPort: 2480
protocol: TCP
- containerPort: 2424
protocol: TCP
- containerPort: 2434
protocol: TCP
livenessProbe:
tcpSocket:
port: 2424
initialDelaySeconds: 15
periodSeconds: 20
failureThreshold: 5
readinessProbe:
tcpSocket:
port: 2424
initialDelaySeconds: 10
periodSeconds: 20
failureThreshold: 5
volumeMounts:
- name: jfs-orientdb
mountPath: /orientdb/databases
- name: config
mountPath: /orientdb/config
initContainers:
- name: copy-configs
image: busybox:1.31
command: ['sh', '-c']
args:
- cp -r /opt/fluid_jfs_orientdb/orientdbconfig/* /orientdb/config/
volumeMounts:
- name: config
mountPath: /orientdb/config/
- name: orientdb-config-cm-vol
mountPath: /opt/fluid_jfs_orientdb/orientdbconfig/
volumes:
- name: jfs-orientdb
persistentVolumeClaim:
claimName: jfs-orientdb
- name: config
emptyDir: {}
- name: orientdb-config-cm-vol
hostPath:
path: /opt/fluid_jfs_orientdb/orientdbconfig/

[andrii0lomakin]

Hi,
You can not use several instances of DB running inside the same file path. Is that what you are doing? I am not a k8s expert, unfortunately.
If your file systems,in reality, are separated, then you can disable file locking by providing a flag.
Please let me know if you need detailed instructions on how to set up this flag.