Helper shell script for running the gh-ost tool

run_ghost.sh

#!/bin/bash

function usage {
  echo "Use ./run_ghost.sh table_name 'alter_command' [other_ghost_args]"
  exit 1
}

database="MY_DATABASE_NAME"

table=$1
shift

if [ "$table" == "" ]; then
  usage
fi

alter=$1
shift

if [ "$alter" == "" ]; then
  usage
fi

cut_over_file=/root/bin/gh-ost-cut-over.txt
touch $cut_over_file

./gh-ost --host=localhost --conf=/root/.my-ghost.cnf --database=$database \
         --table=$table \
         --alter="$alter" \
         --chunk-size=2000 --max-load=Threads_connected=50 \
         --allow-on-master --ssl --ssl-allow-insecure --exact-rowcount \
         --initially-drop-ghost-table --initially-drop-socket-file \
         --postpone-cut-over-flag-file=$cut_over_file \
         --verbose $*

This likely won't make much sense without reading the accompanying arcticle at dev.to.