When processing appears
sluggish or requests fail, use a focused
approach to determine the source of the problem in the environment.
The
approach described is for non-standalone server environments.
Before you begin
You must be logged into the administrative console
of the deployment
manager to perform this task.
Required security role for this task: When
security and role-based authorization are enabled, you must log into
the administrative console as a CellAdmin or DeAdmin to perform this
task.
About this task
Investigate the state of your deployment environment if you
notice
any of the following symptoms:
- Unavailable applications
- Sluggish applications
- Stopped applications
- Decreased
throughput
- Sluggish performance
Procedure
- Display the topology layout that describes this deployment environment
to determine the status of the topology.
- Display
the topology to determine the state of the various roles
in the topology. Note the roles with unexpected states or warning
for further
investigation.
- Locate the nodes that are causing
the error state for each role.
- Make sure all
nodes are synchronized.
On the Nodes page
in the administrative console select any unsynchronized nodes and
click Synchronize.
- Make
sure that the messaging engines associated with all the buses
are running.
If they are not running, stop and start
the messaging
engines.
- Locate the logs associated with
the nodes in error and view the
logs for error messages.
- Take any actions prescribed
by the error messages to affect the
correction.
- Correct any errors and restart
the affected nodes.
Results
The nodes previously
in error start and the status of the topology
becomes
"running."What to do next
Restart any affected applications