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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Linux 2.6 - man page for isfdtype (linux section 3)

ISFDTYPE(3)						     Linux Programmer's Manual						       ISFDTYPE(3)

isfdtype - test file type of a file descriptor
#include <sys/stat.h> #include <sys/socket.h> int isfdtype(int fd, int fdtype); Feature Test Macro Requirements for glibc (see feature_test_macros(7)): isfdtype(): Since glibc 2.20: _DEFAULT_SOURCE Before glibc 2.20: _BSD_SOURCE || _SVID_SOURCE
The isfdtype() function tests whether the file descriptor fd refers to a file of type fdtype. The fdtype argument specifies one of the S_IF* constants defined in <sys/stat.h> and documented in stat(2) (e.g., S_IFREG).
The isfdtype() function returns 1 if the file descriptor fd is of type fdtype and 0 if it is not. On error, -1 is returned and errno is set to indicate the cause.
The isfdtype() function can fail with any of the same errors as fstat(3).
The isfdtype() function is not specified in any standard, but did appear in the draft POSIX.1g standard. It is present on OpenBSD and Tru64 UNIX (where the required header file in both cases is just <sys/stat.h>, as shown in the POSIX.1g draft), and possibly other systems.
Portable applications should use fstat(3) instead.
fstat(3) Linux 2014-03-13 ISFDTYPE(3)

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