Thread: Failure and Recovery in Symphony DE

Originally Posted by oags15

I know the process to start up the cluster (foundations_sym. pdf ). Does somebody know the process to shut down the cluster? That is not include in the pdf file

soamstartup - starts the cluster
soamshutdown - stops the cluster

Originally Posted by oags15

How much time it takes to restart the system in case of fault?, etc.

In Symphony DE, the SD and RS are not fault tolerent. If these daemons crash or if their host shuts-down - the whole cluster will fail. The SSM and SIM daemons are fault tolerant and will be restarted as soon as the failure is detected. The time to restart should be a few seconds. The only issue is if the host running the SSM/SIM loses power. Then it may take up to 2 minutes to detect a failure.

Your application's service instance (SI) process will be restarted within a few seconds if it fails.

- Ajith