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percona-toolkit/sandbox/servers/start

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#!/bin/sh
start_ts=$(date +%s)
PIDFILE="/tmp/PORT/data/mysql_sandboxPORT.pid"
SOCKETFILE="/tmp/PORT/mysql_sandboxPORT.sock"
BASEDIR="PERCONA_TOOLKIT_SANDBOX"
sandbox_is_alive() {
# First, all these files must exist.
[ -f $PIDFILE -a -S $SOCKETFILE ] || return 1
# And that PID file must have a PID.
local pid=$(cat /tmp/PORT/data/mysql_sandboxPORT.pid 2>/dev/null)
[ "$pid" ] || return 1
# Second, MySQL is truly alive when it respond to a ping.
# It's not enough that the mysqld process is running because
# InnoDB can take time to create ibdata1, etc. So MySQL is
# only alive when it responds to queries.
$BASEDIR/bin/mysqladmin --defaults-file="/tmp/PORT/my.sandbox.cnf" ping >/dev/null 2>&1
[ $? -eq 0 ] || return 1
return 0
}
_seq() {
local i="$1"
awk "BEGIN { for(i=1; i<=$i; i++) print i; }"
}
# #############################################################################
# Script starts here
# #############################################################################
# If there's a PID or socket file, MySQL may already be alive.
if [ -f "$PIDFILE" -o -S "$SOCKETFILE" ]; then
if sandbox_is_alive; then
echo "MySQL test server on port PORT is running."
exit 0
fi
# Sandbox exists but is not running. Clear it and then start it.
/tmp/PORT/stop >/dev/null 2>&1
fi
echo -n "Starting MySQL test server on port PORT... "
# Start MySQL.
cwd=$PWD
cd $BASEDIR
$BASEDIR/MYSQLD --defaults-file=/tmp/PORT/my.sandbox.cnf > /dev/null 2>&1 &
cd $PWD
# Wait for MySQL to actually be up, i.e. to respond to queries.
for i in $(_seq 60); do
if sandbox_is_alive; then
end_ts=$(date +%s)
t=$((end_ts - start_ts))
echo "OK (${t}s)"
exit 0
fi
sleep 1
done
end_ts=$(date +%s)
t=$((end_ts - start_ts))
echo "FAILED (${t}s)"
exit 1