【转载】执行sql文件限制频率避免流控

awk '1;NR%1000==0{print "select sleep(1);"}' xxx.sql > xxx_dba.sql

mysqldump --skip-extended-insert

FLAT_FILE="/tmp/big_file.txt"
FIFO_PATH="${FLAT_FILE}.fifo"
LOAD_FILE="${FLAT_FILE}.load"
CHUNK_SIZE=1000
 
# Split the file
pt-fifo-split --force --lines ${CHUNK_SIZE} ${FLAT_FILE} --fifo ${FIFO_PATH} &
# Sleep 10 seconds to assure ${FIFO_PATH} exists before entering loop
sleep 10
while [ -e ${FIFO_PATH} ]
do
  # Write chunk to disk
  cat ${FIFO_PATH} > ${LOAD_FILE}
  # Load chunk into table
  mysql --database=test \
   --show-warnings \
   -vv < ${LOAD_FILE}
  sleep 1
done