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
- 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
- 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.