Logs

Access and manage Redis Enterprise logs on Kubernetes for monitoring and troubleshooting.

Access and manage Redis Enterprise logs on Kubernetes for monitoring, troubleshooting, and debugging your Redis Enterprise deployment. Logs provide valuable insights into cluster operations, database performance, and system health.

Log collection and access

Learn how to collect and access logs from your Redis Enterprise deployment:

• Collect logs - Methods for collecting logs from Redis Enterprise pods and containers

Log storage and access

Each Redis Enterprise container stores its logs under /var/opt/redislabs/log. When using persistent storage, this path is automatically mounted to the redis-enterprise-storage volume, making logs accessible through sidecar containers or external log collection tools.

For example, in the REC (Redis Enterprise Cluster) spec you can add a sidecar container, such as a busybox, and mount the logs to there:

sideContainersSpec:
  - name: busybox
    image: busybox
    args:
      - /bin/sh
      - -c
      - while true; do echo "hello"; sleep 1; done

    volumeMounts:
    - name: redis-enterprise-storage
      mountPath: /home/logs
      subPath: logs

Now the logs can be accessed from in the sidecar. For example by running

kubectl exec -it <pod-name> -c busybox -- tail home/logs/supervisord.log

The sidecar container is user determined and can be used to format, process and share logs in a specified format and protocol.

Check cluster health

Check pod readiness and the cluster status before you collect logs. These checks often show the cause of a problem directly.

Check pod readiness

Run kubectl get pods in your REC namespace. Each pod should show all of its containers ready in the READY column.

Check the cluster status

Run kubectl get rec. A healthy cluster shows these values:

• STATE is Running, or RunningRollingUpdate while a rolling update is in progress.
• SPEC STATUS is Valid. Invalid means the REC specification isn't valid.
• LICENSE STATE is Valid. If it's Expired or LICENSE EXPIRATION DATE is close, update your license.

The license columns are empty unless STATE is Running, RunningRollingUpdate, Initializing, or Upgrade.