Hello! I use CentOS 5.4 with LAMP. On the server runs heavy cgi-programs. MySQL use 75% (100% = 8GB) of memory. When cgi programs use more than 25% of memory and all SWAP file (8GB), kernel run OOM-Kiler wich kill mysqld procces.
I use: echo "0" > /proc/sys/vm/swappiness - This allows to reduce using of SWAP. I want to use: echo "-17" > /proc/`pidof mysqld`/oom_adj - This allows save mysqld when run oom-killer. Someone used this option?