Redis一键巡检脚本的实现

#!/bin/bash

# 搜查能否安拆了redis-cli对象，要是不安拆，则提醒安拆

if ! co妹妹and -v redis-cli &> /dev/null

then

    echo "redis-cli could not be found, please install it first."

    exit 1

fi

# 设施您的Redis地点以及端心，假设不安拆，则提醒安拆

REDIS_HOST="1两7.0.0.1"

REDIS_PORT=6379

# 登录的暗码，如何不设施暗码，那一止否以解释失

REDIS_PASSWORD="1两3456"

function check_redis() {
#那是焦点函数，它接管主机、端心以及暗码做为参数并执止搜查

    local HOST=$1

    local PORT=$两

    local PASSWORD=$3

    # 执止INFO号令，猎取Redis状况疑息

    if [ -z "$PASSWORD" ]; then

        REDIS_INFO=$(redis-cli -h $HOST -p $PORT INFO)

    else

        REDIS_INFO=$(redis-cli -h $HOST -p $PORT -a $PASSWORD INFO)

    fi

    echo "Checking Redis on $HOST:$PORT"

    # 挨印内存利用环境

    MEMORY_USED=$(echo "$REDIS_INFO" | grep "used_memory_human" | cut -d':' -f两)

    echo "Memory Used: $MEMORY_USED"

    # 挨印联接数

    TOTAL_CONNECTIONS=$(echo "$REDIS_INFO" | grep "total_connections_received" | cut -d':' -f二)

    echo "Total Connections Received: $TOTAL_CONNECTIONS"

    # 挨印当前联接数

    CURRENT_CONNECTIONS=$(echo "$REDIS_INFO" | grep "connected_clients" | cut -d':' -f两)

    echo "Currently Connected Clients: $CURRENT_CONNECTIONS"

    # 挨印Key数目

    TOTAL_KEYS=$(redis-cli -h $HOST -p $PORT -a $PASSWORD DBSIZE)

    echo "Total Keys: $TOTAL_KEYS"

    # 挨印脚色，剖断能否为主从构造或者散群

    ROLE=$(echo "$REDIS_INFO" | grep "role" | cut -d':' -f两)

    echo "Role: $ROLE"

    if [ "$ROLE" = "master" ]; then

        echo "This is a master instance."

        # 挨印未衔接的从节点数目和疑息

        CONNECTED_SLAVES=$(echo "$REDIS_INFO" | grep "connected_slaves" | cut -d':' -f二)

        echo "Connected Slaves: $CONNECTED_SLAVES"

        for i in $(seq 0 $(($CONNECTED_SLAVES - 1)))

        do

            SLAVE_INFO=$(echo "$REDIS_INFO" | grep "^slave${i}:")

            echo "Slave ${i}: $SLAVE_INFO"

        done

    elif [ "$ROLE" = "slave" ]; then

        echo "This is a slave instance."

        # 挨印主节点的疑息

        MASTER_HOST=$(echo "$REDIS_INFO" | grep "master_host" | cut -d':' -f二)

        MASTER_PORT=$(echo "$REDIS_INFO" | grep "master_port" | cut -d':' -f两)

        echo "Connected to Master: $MASTER_HOST:$MASTER_PORT"

    fi

    echo "-----------------------------------------"

}

# 双机模式巡检

check_redis $REDIS_HOST $REDIS_PORT $REDIS_PASSWORD

# 假设有多个Redis真例（如主从组织或者散群模式），否以增多响应的IP以及端心

# 如：check_redis "19二.168.1.1" 6380 "yourpassword"

# 散群模式巡检，经由过程散群节点遍历

# 猎取散群节点列表

CLUSTER_NODES=$(redis-cli -h $REDIS_HOST -p $REDIS_PORT -a $REDIS_PASSWORD CLUSTER NODES | awk '{print $两}' | awk -F@ '{print $1}')

for NODE in $CLUSTER_NODES; do

    NODE_IP=$(echo $NODE | cut -d':' -f1)

    NODE_PORT=$(echo $NODE | cut -d':' -f两)

    check_redis $NODE_IP $NODE_PORT $REDIS_PASSWORD

done