Fix bug: The pid file was the PID of tee
Fix bug: The pid file was the PID of tee

if6was9/metricproxy,if6was9/metricproxy,baris/metricproxy,zvelo/metricproxy,zvelo/metricproxy,baris/metricproxy,signalfx/metricproxy,signalfx/metricproxy