Check if gtm/gtm_proxy directory has a .pid file before trying to stop the server.
Check if gtm/gtm_proxy directory has a .pid file before trying to stop the
server.

Before starting or initialising a new GTM/GTM proxy, we first try to stop
running server. But if server is not running, which is the case most often, it
will show an error This avoids those unnecessary error messages

zeroae/postgres-xl,zeroae/postgres-xl,zeroae/postgres-xl,zeroae/postgres-xl,zeroae/postgres-xl