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Added support for arbitrary URLs and some error checking #290

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merged 2 commits into from
May 24, 2024
Merged

Added support for arbitrary URLs and some error checking #290

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8f03c0e
Added support for arbitrary URLs and some error checking
kolbe May 23, 2024
dddbfb0
Error handling in replication deployment
kolbe May 23, 2024
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43 changes: 30 additions & 13 deletions scripts/manual_install.sh
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Original file line number Diff line number Diff line change
Expand Up @@ -9,8 +9,6 @@
# - deploy_replication <num_nodes> <base_port>: deploy a replication setup
# - exec_mysql_sock <name> <query>: execute a query on a MySQL server

set -xe

setup() {
local cmd=()
if (( UID != 0 ))
Expand All @@ -25,6 +23,9 @@ setup() {
ca-certificates
libaio1
libnuma1
libncurses5
libncurses6
netcat
wget
sudo
xz-utils
Expand Down Expand Up @@ -55,18 +56,23 @@ activate() {
return 1
fi

minor_version="${version%.*}"

printf -v filename "mysql-%s-linux-glibc2.28-x86_64.tar.xz" "$version"
printf -v url "https://dev.mysql.com/get/Downloads/MySQL-%s/%s" "$minor_version" "$filename"
dirname="${filename%.tar.xz}"
if [[ $version = http* ]]; then
url=$version
filename="${url##*/}"
dirname="${filename%.tar.xz}"
else
minor_version="${version%.*}"
printf -v filename "mysql-%s-linux-glibc2.28-x86_64.tar.xz" "$version"
printf -v url "https://dev.mysql.com/get/Downloads/MySQL-%s/%s" "$minor_version" "$filename"
dirname="${filename%.tar.xz}"
fi

if [[ -d $dirname ]]; then
pushd "$dirname"
return
fi
if [[ ! -f $filename ]]; then
wget "$url"
wget "$url" || return
fi
tar -xf "$filename"
pushd "$dirname"
Expand Down Expand Up @@ -97,6 +103,8 @@ start_mysql() {
server_id=$3
fi

check_port "$port" || return

"${mysql_cmd[@]}" --datadir="$datadir" --port="$port" --server-id="$server_id" &

pid=$!
Expand Down Expand Up @@ -135,7 +143,7 @@ deploy_replication() {
fi

initialize_mysql primary
start_mysql primary "$base_port"
start_mysql primary "$base_port" || return

exec_mysql_sock primary "CREATE USER 'repl'@'%' IDENTIFIED BY 'replica'"
exec_mysql_sock primary "GRANT REPLICATION SLAVE ON *.* TO 'repl'@'%'"
Expand All @@ -147,18 +155,27 @@ deploy_replication() {
do
name="replica$i"
port=$((base_port + i))
initialize_mysql "$name"
start_mysql "$name" "$port" "$(( 100 + i ))"
initialize_mysql "$name" || continue
start_mysql "$name" "$port" "$(( 100 + i ))" || continue
exec_mysql_sock "$name" "CHANGE REPLICATION SOURCE TO SOURCE_HOST='127.0.0.1', SOURCE_PORT=$base_port, GET_SOURCE_PUBLIC_KEY=1"
exec_mysql_sock "$name" "START REPLICA USER='repl' PASSWORD='replica'"
done
}

exec_mysql_sock() {
local datadir=data
if [[ $1 ]]; then
if [[ $2 ]]; then
datadir="data-$1"
shift
fi
./bin/mysql -u root -S "$datadir/mysql.sock" -e "$2"

./bin/mysql -u root -S "$datadir/mysql.sock" -e "$1"
}

check_port() {
local port=$1
if nc -w0 -z localhost "$port" </dev/null >/dev/null; then
printf %s\\n "Port $port is in use" >&2
return 1
fi
}
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