kill-shard.sh

pkill -2 mongos && sudo pkill -2 mongod

start-shard.sh

#!/usr/bin/env bash

# Remember to change password in script

shards=$1
wkdir=/data
logpath=/data/log
mongopath="" # /apps/mongodb/bin/current/
mongos_port=32001
config_port=32002
mongod_port=32100

memtotal=$(grep MemTotal /proc/meminfo | awk '{printf "%.f",$2 / 1024 / 1024}')
cache_size=$(((memtotal / shards) / 2)) # GB, Per instance
create_user='db.createUser({user: "clusterAdmin",pwd:"PASSWORD_IS_HERE",roles:[{role:"clusterAdmin",db:"admin"},{role:"userAdminAnyDatabase",db:"admin"}]});'

# Création du dossier du server de config (si besoin)
mkdir -p ${wkdir}/config
mkdir -p ${logpath}/config

# Démarrage du ConfigServer
${mongopath}mongod -f /data/mongo-common.conf --configsvr --replSet configReplSet \
    --bind_ip config.edouard.m1by1.local --port ${config_port} --dbpath ${wkdir}/config --directoryperdb \
    --nounixsocket --logpath ${logpath}/config-server.log --oplogSize 16 --wiredTigerCacheSizeGB 0.25 --fork --quiet

# Init du replicaSet
${mongopath}mongo --quiet --port ${config_port} admin > /dev/null <<EOF
rs.initiate();
while (db.isMaster()['ismaster'] !== true){sleep(200);}
${create_user}
EOF

# Démarrage du MongoS
${mongopath}mongos -f /data/mongo-common.conf --configdb configReplSet/config.edouard.m1by1.local:${config_port} --nounixsocket --logpath ${logpath}/mongos.log \
    --bind_ip_all --port ${mongos_port} --setParameter diagnosticDataCollectionEnabled=false --fork --quiet

# Lancement de chaque shard
for (( s=1; s<=$shards; s++ ))
do
    # Création des dossiers pour les shards
    sn=$(printf "%02d" ${s})
    dd=${wkdir}/shards/${sn}
    prt=$((${mongod_port}+${s}))
    mkdir -p ${dd}
    host=mongod-${sn}.edouard.m1by1.local

    # Démarrage du daemon mongod
    ${mongopath}mongod -f /data/mongo-common.conf --shardsvr --replSet shard-local-rs${sn} --bind_ip ${host} \
         --port ${prt} --dbpath ${dd} --nounixsocket --logpath ${logpath}/mongod-${sn}.log --oplogSize 128 --wiredTigerCacheSizeGB ${cache_size} --fork

    # Init du replicaset
    ${mongopath}mongo --host ${host} --port ${prt} admin > /dev/null <<EOF
rs.initiate();
while (db.isMaster()['ismaster'] !== true){sleep(200);}
${create_user}
EOF

    # Ajout du shard au cluster
    ${mongopath}mongo --host mongos.edouard.m1by1.local --port ${mongos_port} --username clusterAdmin \
         --password PASSWORD_IS_HERE --authenticationDatabase=admin admin > /dev/null <<EOF
sh.addShard("shard-local-rs${sn}/${host}:${prt}");
${create_user}
EOF

done

terminate-shard.sh

pkill -2 mongos && sudo pkill -2 mongod
rm -rf /data/{config,log,shards}