Cloud Pak for Data Group

CP4D 4.0 Installation Troubleshooting Tips

By Yun Dai posted Wed September 01, 2021 05:55 AM

  

CP4D 4.0 Installation Troubleshooting Tips

 
Author:  Jia Hong Wei, Dai Yun

The purpose of this article to give you some tips and tricks based on support experience when installing CP4D 4.0.

 

·      Docker pull rate limit issue

Symptom

Error: Error initializing source docker://registry:2.6: Error reading manifest 2.6 in docker.io/library/registry: toomanyrequests: You have reached your pull rate limit. You may increase the limit by authenticating and upgrading: https://www.docker.com/increase-rate-limit

Resolution  

The issue would be gone after you login with your docker account:

 

[root@jhw-downloadserver1 ~]# docker login docker.io -u <Your Docker Account>
Emulate Docker CLI using podman. Create /etc/containers/nodocker to quiet msg.
Password:
Login Succeeded!

 

·      IBM Common Service Operator fails to initialize resources

Symptom

When running the command,  see the following error messages:

oc api-resources --api-group operator.ibm.com

E0618 13:13:29.959214       1 main.go:136] InitResources failed: unable to retrieve the complete list of server APIs: webhook.certmanager.k8s.io/v1beta1: the server is currently unable to handle the request

 Solution

https://www.ibm.com/docs/en/cpfs?topic=issues-foundational-service-operator-fails-initialize-resources

 

·      Operator stuck in upgrade-pending status

There must be one OperatorGroups existing in the namespace in which you are to create the operators. There can be only one OperatorGroups existing in the namespace in which you are to create the operators.

Check the logs of pod catalog-operator and olm-operator in openshift-operator-lifecycle-manager namespace, usually it will provide some hints.

 

oc logs olm-operator-xxxxxxx -n openshift-operator-lifecycle-manager

oc logs catalog-operator-xxxxxxx -n openshift-operator-lifecycle-manager

 

·      OpenShift Console for the troubleshooting

Check the Known issues and Troubleshooting sections in the Knowledge Center when encountering problems. 

 

·      OperandRequest stuck in Installing

Check the logs of the pod operand-deployment-lifecycle-manager-xxx in ibm-common-services

An example:
1. Found the CCS OperandRequest stuck in Installing status for about 2 hours when running the following command:
oc get OperandRequest -A

2. Check  the logs of the pod operand-deployment-lifecycle-manager-xxx in ibm-common-services and see the following error message:  
E0803 10:54:32.663352       1 reconcile_operand.go:133] the ClusterServiceVersion of Subscription cpd-operators/ibm-cpd-ccs-operator is not Ready

3. Return the installation of the Catalog Source command for fixing this problem


·      How to restart the installation of a service with clean log message

An example:

1. When installing WSL, the output of the following command is 'Failed'

oc get WS ws-cr -o jsonpath='{.status.wsStatus} {"\n"}'

2. Then we can restart the  ibm-cpd-ws-operator-6f8dfd566b-x7phv pod for restarting the installation.

oc delete pod ibm-cpd-ws-operator-6f8dfd566b-x7phv -n <your operator namespace>

·      How to verify and check logs during the service installation

1. Foundational services

(1) Verify the status of the common service operators by running the following commands to verify the status of ibm-common-service-operator:

oc --namespace ibm-common-services get csv

 If you installed IBM Cloud Pak foundational services in a different project, replace ibm-common-services with the correct project name. The command should return output with the following format:

NAME                                          DISPLAY                                       VERSION   REPLACES                                      PHASE
ibm-common-service-operator.v3.8              IBM Cloud Pak foundational services           3.8       ibm-common-service-operator.v3.7.0            Succeeded

 
(2) Verify that the custom resource definitions were created:

oc get crd | grep operandrequest

 The command should return output with the following format:

NAME                               CREATED AT
operandrequests.operator.ibm.com   2021-06-23T10:10:22Z


2. Cloud Pak for Data Platfrom service

Check the logs of cpd-platform-operator
oc logs $(oc get po -n cpd-operators| grep cpd-platform-operator-manager | awk '{print $1}')  -n cpd-operators

Note: replace the cpd-operators with your operator namespace

3. WSL service

Check the logs of ibm-cpd-ws-operator

oc logs $(oc get po -n cpd-operators| grep ibm-cpd-ws-operator | awk '{print $1}')  -n cpd-operators
Note: replace the cpd-operators with your operator namespace

4. WML service

Check the logs of ibm-cpd-wml-operator

oc logs $(oc get po -n cpd-operators| grep ibm-cpd-wml-operator | awk '{print $1}')  -n cpd-operators

Note: replace the cpd-operators with your operator namespace


5. WKC service

Check the logs of

ibm-cpd-wkc-operatoroc logs $(oc get po -n cpd-operators| grep ibm-cpd-wkc-operator | awk '{print $1}')  -n cpd-operators

Note: replace the cpd-operators with your operator namespace


6. Db2WH service

Check the logs of ibm-db2wh-cp4d-operator-controller-manager

oc logs $(oc get po -n cpd-operators| grep ibm-db2wh-cp4d-operator-controller-manager| awk '{print $1}')  -n cpd-operators

Note: replace the cpd-operators with your operator namespace


7.DMC service

Check the logs of ibm-dmc-controller-manager

oc logs $(oc get po -n cpd-operators| grep ibm-dmc-controller-manager| awk '{print $1}')  -n cpd-operators

·      How to search for the image in your image repository 
An example:
podman image search --list-tags 9.115.72.27:5002/custom-redhat-operators --authfile=/run/user/1000/containers/auth.json --tls-verify=false
 

·      How to run db2 commands in db2u operator
An example:

oc rsh c-db2oltp-iis-db2u-0
ksh
db2 list active databases









 

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