Troubleshooting for Watson Studio

Resolving the problem

1. Log in to the OpenShift cluster.
2. Restart the pods for redis by using the following command:

   oc delete po -n <project> | oc get po -n <project> -l component=redis -o jsonpath="{.items[*].metadata.name}"
   

Cause

The default environment runtimes use the time zone where the runtimes are created, which is UTC time.

Resolving the problem

If you want to use your local time, you need to download and modify the runtime configuration file to use your time zone. You don't need to make any changes to the runtime image. After you upload the configuration file again, the runtime will use the time you set in the configuration file.

Required role: You must be a cluster administrator to change the configuration file of a runtime.

To change the time zone:

1. Download the configuration file of the runtime that you are using. Follow the steps in Downloading the runtime configuration.

2. Update the runtime definition JSON file and extend the environment variable section to include your time zone, for example, for Europe/Viena use:

   {
     "name": "TZ",
     "value": "Europe/Vienna"
   }
   

3. Upload the changed JSON file to the IBM Software Hub cluster. You can use the IBM Software Hub Platform API.

   1. Upload the JSON file:

      Note:

      To run this script, you must generate and export the token as the ${MY_TOKEN} environment variable. For details, see Generating an API authorization token.

      curl -X PUT \
        'https://${HOSTNAME}/zen-data/v1/volumes/files/%2F_global_%2Fconfig%2F.runtime-definitions%2Fibm' \
      -H 'Authorization: ZenApiKey ${MY_TOKEN}' \
      -H 'content-type: multipart/form-data' \
      -F upFile=@/path/to/runtime/def/<custom-def-name>-server.json
      

      Important: Change the name of the modified JSON file. The file name must end with server.json and the same file name must be used across all clusters to enable exporting and importing projects across cluster boundaries.

      If the changed JSON file was uploaded successfully, you will see the following response:

      {
        "_messageCode_": "Success",
        "message": "Successfully uploaded file and created the necessary directory structure"
      }
      

4. Restart the notebook runtime.

Resolving the problem

To enable RStudio to start, clear your browser cache or open RStudio in a browser with incognito mode enabled.

Resolving the problem

After launching the RStudio IDE, at the stage when you select the RStudio environment, select Reset the workspace. RStudio is started using the default settings with a clean RStudio workspace.

Resolving the problem

To enforce memory limits, a Cloud Pak for Data Administrator must patch the RStudio CR with using this code:

For RStudio Server Runtimes 24.1:

oc patch rstudioaddon ibm-cpd-rstudio-241 \
--namespace=${PROJECT_CPD_INST_OPERANDS} \
--type=merge \
--patch='{"spec": {"useRStudioDataLimits"=true}}'

For RStudio Server Runtimes 23.1:

oc patch rstudioaddon ibm-cpd-rstudio-231 \
--namespace=${PROJECT_CPD_INST_OPERANDS} \
--type=merge \
--patch='{"spec": {"useRStudioDataLimits"=true}}'