I am getting this error when I configured a job to do stop and start of tomcat server:
Process leaked file descriptors. See http://wiki.jenkins-ci.org/displa
Yes, creating fake BUILD_ID for process tells Jenkins to ignore this process during detection spawned processes, so this process will be not killed after finishing job.
Usage: Enter BUILD_ID=dontKillMe before your command, for example into Execute shell build step:
BUILD_ID=dontKillMe nohup ./yourStartScript.sh &
Note: See also nohup