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FusionCloud 6.3.1.1 Troubleshooting Guide 02

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etcd Pods in CrashLoopBackOff State

etcd Pods in CrashLoopBackOff State

Symptom

When the three nodes of the etcd cluster in the management zone are powered off and then powered on again, two etcd pods are in the CrashLoopBackOff state.

Possible Causes

After the nodes are powered on, the SSH service is still unavailable when the etcd container is started.

Troubleshooting Method

  1. Use PuTTY to log in to the om_core1_ip node.

    The default username is paas, and the default password is QAZ2wsx@123!.

  2. Run the following command to obtain the status of the etcd pods in the management zone and information about related nodes:

    kubectl get pods -nmanage -owide | grep etcd | grep -v "cse\|flow\|backup"

  3. Log in to the nodes where the pods in the CrashLoopBackOff state reside as the paas user.
  4. Run the following command to access the data directories of etcd, etcd-event, and etcd-network where etcd pods are located (etcd is used as an example):

    cd /var/paas/run/etcd

  5. Run the following command to check whether the data directories generated by the etcd pods are empty:

    ls etcd-X (X may be 0, 1, or 2)

    Set X based on the node where the abnormal etcd pods locate.

    If no command output is displayed, run the following command to delete the empty directories:

    rm -r etcd-X

    Run the command in 2 to query whether the etcd pods are normal.

    If the etcd pods are abnormal, contact technical support for assistance.

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Updated: 2019-06-10

Document ID: EDOC1100063248

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