Updating pod memory

Owned by Yuki Jung
Last updated: Aug 22, 2020
1 min read

Before you begin

  1. Follow the steps in this KB article for connecting to public or private GKE cluster.

  2. Install kubectl and configure kubectl command line access using steps 1 and 2 in Getting thread dump section in the same article (alternatively, see go/cdf-internal-runbook for same instructions in more easily copy-paste-able format).

Updating memory of a pod

  1. Get the name of the pod of interest: kubectl get pods

  2. To check current configuration of pod: kubectl describe pod/<name of pod>

  3. Modify and save the memory in the yaml:  kubectl edit cdapmasters.cdap.cdap.io/<instance-name> -o yaml

  4. Check if the pod restarted successfully: kubectl get pods

For nodes stuck in init:CrashLoopBackoff state

  1. Delete the PV:

    1. Find the name of the PV for the pod we want to restart: kubectl get pvc

    2. Delete the PV: kubectl delete pvc/<pod-pvc-name>

  2. Delete the statefulset:

    1. Find the name of the statefulset for the pod we want to restart: kubectl get statefulset

    2. Delete the statefulset: kubectl delete statefulset/<pod-statefulset-name>

  3. Check if the pod restarted successfully:

    1. kubectl get pods

    2. kubectl describe pod/<updated-pod>

       

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