Troubleshooting and support

If you encounter problems, see the following information about how to troubleshoot a problem with your IBM® software.

About this task

Tools are included on your IBM WebSphere® Application Server Hypervisor Edition virtual images to assist with problem determination. The was_mustgather.sh script helps automate the data collection process for you when troubleshooting a potential issue.

Procedure

  1. Use the was_mustgather.sh script to gather information
    IBM WebSphere Application Server Hypervisor Edition support teams can request the collection of additional documentation to assist with problem determination. The was_mustgather.sh script gathers this additional data. The script gathers information about the application server environment and the operating system and a compressed file is included in /tmp/was_mustgather.zip. To execute the script open a shell and run the was_mustgather.sh script using the following example:
    # /opt/IBM/WebSphere/AppServer/virtual/service/was_mustgather.sh
  2. If you configure APC elasticity while using Dynamic Clusters of ODR servers in an IWD or IPAS deployed cell, the following problems might occur:
    • If an ODR Virtual Machine is cloned, any advanced options associated with the ODR part will be executed again. For example, if you have configured an advanced option such as CPU Overload Protection value = 90% prior to Virtual System deployment, and then changed the value to 85% after deployment, it will be reset to 90% after the ODR VM is cloned.

      If using a Dynamic Cluster of ODR servers with APC elasticity, make sure to plan ahead before creating your pattern. If you are unsure what values you will want in your advanced options on the ODR part, consider changing these settings after deployment.

    • When an emergency fix has been applied after deploying the virtual system, there can be a period of time where requests are not routed to the application server during ODR VM adds.

      If an emergency fix is required for a Virtual System with Dynamic Clusters of ODR servers and APC elasticity, you must clone and extend the image with the emergency fix and redeploy the Virtual System based on the new image.

Results

After successful completion of these steps, you will have gathered the diagnostic information needed to troubleshoot the issue you are experiencing.

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Last updated: January 29, 2018 07:35 AM GMT-06:00
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