【NoSQL数据库】Redis Cluster集群(含redis集群扩容脚本)
#!/bin/bash
# 设置Redis Cluster节点数量
NODES=3
# 设置Redis Cluster每个节点的端口号起始值
PORT_START=7000
# 设置Redis Cluster配置文件的基本路径
CONF_PATH=/path/to/redis-cluster/conf
# 设置Redis Cluster数据文件的基本路径
DATA_PATH=/path/to/redis-cluster/data
# 设置Redis Cluster日志文件的基本路径
LOG_PATH=/path/to/redis-cluster/log
# 创建配置文件和数据目录,并设置权限
for port in `seq $PORT_START $(($PORT_START+$NODES-1))`
do
mkdir -p ${CONF_PATH}/${port}
mkdir -p ${DATA_PATH}/${port}
mkdir -p ${LOG_PATH}/${port}
echo "port ${port}" > ${CONF_PATH}/${port}/redis.conf
echo "dir ${DATA_PATH}/${port}" >> ${CONF_PATH}/${port}/redis.conf
echo "logfile ${LOG_PATH}/${port}/redis.log" >> ${CONF_PATH}/${port}/redis.conf
echo "cluster-enabled yes" >> ${CONF_PATH}/${port}/redis.conf
echo "cluster-config-file nodes-${port}.conf" >> ${CONF_PATH}/${port}/redis.conf
echo "cluster-node-timeout 5000" >> ${CONF_PATH}/${port}/redis.conf
echo "appendonly yes" >> ${CONF_PATH}/${port}/redis.conf
chmod 755 ${CONF_PATH}/${port}
chmod 755 ${DATA_PATH}/${port}
chmod 755 ${LOG_PATH}/${port}
done
# 启动所有Redis实例
for port in `seq $PORT_START $(($PORT_START+$NODES-1))`
do
redis-server ${CONF_PATH}/${port}/redis.conf
done
# 创建Redis Cluster
redis-cli --cluster create 127.0.0.1:7000 127.0.0.1:7001 127.0.0.1:7002 --cluster-replicas 1
这个扩容脚本示例展示了如何为Redis Cluster创建配置文件、目录和日志文件,并设置合适的权限。然后,脚本启动所有Redis实例,并使用redis-cli
命令来创建一个包含三个主节点和一个副本的Redis Cluster。这个例子简洁明了,并且使用了bash脚本的循环和条件语句来自动化这个过程。
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