May 24, 2012

Post: Shard-Query EC2 images available

TABLE IF EXISTS `dim_airport`; CREATE TABLE `dim_…parse time). $ echo “select count(*) from ontime_fact;” …results cd shard-query/ $ ./run_query < queries.sql | tee raw |./pivot_resultsname-resolve sort-buffer-size=512K sql-mode=STRICT_TRANS_TABLES symbolic-links table-definition-cache=16384 table

Post: Living with backups

…and this is especially true for MyISAM tables which have dedicated buffers only to store…copy operation from MySQL data directory will result in a total disaster after MySQL stops…name of the new scheduler: # for device in `ls /sys/block` ; do if [ -f /sys/block/$device/queue/scheduler ] ; then \ echo