At 21:36 -0600 11/5/02, Nicholas Gaugler wrote:
>I want to alleviate some activity from my drives by changing the
>group_home_dir & arch_dir variables for Innodb to a ram disk drive,
>/dev/shm/. Other than loosing all transactions that were taking place
>during a box crash, are there any problems with this? If the box crashes
>(which shouldn't happen) or I reboot the server, I will loose all of these
>files, Innodb should be able to re-create them with ease though, correct?
The logs contain the information necessary to recover from a crash.
If you put them in a RAM disk and you have a crash, you lose the
information necessary to recover from the crash.
InnoDB can create *new* log files after a crash, but I'm not sure your
tables will be in a consistent state. And without the previous logs, it might
be difficult to put them in a consistent state.
>This should help speed transactions up and alleviate some activity on my
>over burden drives, I hope. Does anyone have any valid input or problems
>with this situation?
>Thanks in advance,