Today (Saturday) We will make some minor tuning adjustments to MySQL.

You may experience 2 up to 10 seconds "glitch time" when we restart MySQL. We expect to make these adjustments around 1AM Eastern Daylight Saving Time (EDT) US.

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FreeBSD 11.0 - man page for getsid (freebsd section 2)

GETSID(2)						      BSD System Calls Manual							 GETSID(2)

NAME
getsid -- get process session
LIBRARY
Standard C Library (libc, -lc)
SYNOPSIS
#include <unistd.h> pid_t getsid(pid_t pid);
DESCRIPTION
The session ID of the process identified by pid is returned by getsid(). If pid is zero, getsid() returns the session ID of the current process.
RETURN VALUES
Upon successful completion, the getsid() system call returns the session ID of the specified process; otherwise, it returns a value of -1 and sets errno to indicate an error.
ERRORS
The getsid() system call will succeed unless: [ESRCH] if there is no process with a process ID equal to pid. Note that an implementation may restrict this system call to processes within the same session ID as the calling process.
SEE ALSO
getpgid(2), getpgrp(2), setpgid(2), setsid(2), termios(4)
HISTORY
The getsid() system call appeared in FreeBSD 3.0. The getsid() system call is derived from its usage in AT&T System V UNIX.
BSD
August 19, 1997 BSD

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