Cluster operation

HBase installations can be configured with different cluster operations like pausing reconciliation or stopping the cluster. See cluster operations for more details.

HBCK2

HBCK2 is the repair tool for Apache HBase clusters. It is contained in the hbase-operator-tools. The hbase-operator-tools are installed in the Docker image provided by Stackable in the directory /stackable/hbase-operator-tools/. HBCK2 can be easily executed via the wrapper script hbck2.

For instance, if you followed the First steps then you have a cluster called simple-hbase running. Let us assume that the HBase user interface reports unknown RegionServers, then you can schedule the ServerCrashProcedure for these RegionServers by applying the following Job:

---
apiVersion: batch/v1
kind: Job
metadata:
  name: hbck2-recover-unknown
spec:
  template:
    spec:
      containers:
      - name: hbck2
        image: docker.stackable.tech/stackable/hbase:2.4.17-stackable0.0.0-dev
        imagePullPolicy: IfNotPresent
        env:
        - name: HBASE_CONF_DIR
          value: /stackable/conf
        - name: HADOOP_CONF_DIR
          value: /stackable/conf
        volumeMounts:
        - name: hbase-config
          mountPath: /stackable/conf
        command:
        - hbck2
        args:
        - recoverUnknown
      volumes:
      - name: hbase-config
        projected:
          sources:
          - configMap:
              name: simple-hdfs
          - configMap:
              name: simple-hbase-master-default
      restartPolicy: Never