I am having problems
getting pg_ctl to detach from the controlling terminal so that it's a proper
daemon. I am running
pg_ctl start -w -s
-l $logfile within a script, which is invoked from an automated test
framework written in python. If the python process is stopped by Ctrl-C,
postgres dies. But the documentation for pg_ctl says "pg_ctl encapsulates tasks
such as redirecting log output and properly detaching from the terminal and
process group" and "if no log file is
chosen, the standard output of pg_ctl should be
redirected to a file or piped to another process such as a log rotating program
like rotatelogs; otherwise postgres will write its output
to the controlling terminal (from the background) and will not leave the shell's
process group." I think I am doing what is necessary here -- you
can see that I am specifying the logfile in the invocation. So why do all the
postmaster processes die when I Ctrl-C the python process? Is there any way to
get insight into what's happening here?
Allan
