HDDS-12011. Show PID of running service

[sarvekshayr]

What changes were proposed in this pull request?

The check added in HDDS-11727 only shows if the service is running. Show the PID of the process found to be running as well.

What is the link to the Apache JIRA

HDDS-12011

How was this patch tested?

Tested the patch on a docker cluster.

bash-5.1$ ozone repair om fso-tree --db /data/metadata/om.db
ATTENTION: Running as user hadoop. Make sure this is the same user used to run the Ozone process. Are you sure you want to continue (y/N)? y
Run as user: hadoop
Error: OM is currently running on this host with PID 7. Stop the service before running the repair tool.

bash-5.1$ ozone repair om fso-tree --db /data/metadata/om.db --force
ATTENTION: Running as user hadoop. Make sure this is the same user used to run the Ozone process. Are you sure you want to continue (y/N)? y
Run as user: hadoop
Warning: --force flag used. Proceeding despite OM being detected as running with PID 7.
FSO Repair Tool is running in debug mode

[Tejaskriya]

Thanks for the patch @sarvekshayr, LGTM

[nandakumar131]

Thanks @sarvekshayr for the contribution and @Tejaskriya for the review!