1. 背景：生產(chǎn)測試后redis中產(chǎn)生大量數(shù)據(jù)
生產(chǎn)前需要清理reids集群中的數(shù)據(jù)。、
你看有很多key呢：
使用工具
使用命令，查看是否有數(shù)據(jù)：
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keys * |
2. 清理步驟
2.1 任意登錄一臺redis機(jī)器
執(zhí)行下面腳本：
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clear_redis_cluster.sh 10.1.33.101:8001 redis |
執(zhí)行日志如下：
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clearing 10.1.33.112:8028 ...background append only file rewriting startedreadonly you can't write against a read only replica. clearing 10.1.33.110:8026 ...background append only file rewriting startedreadonly you can't write against a read only replica. clearing 10.1.33.111:8027 ...background append only file rewriting startedreadonly you can't write against a read only replica. clearing 10.1.33.107:8007 ...background append only file rewriting startedokclearing 10.1.33.108:8024 ...background append only file rewriting startedreadonly you can't write against a read only replica. clearing 10.1.33.104:8020 ...background append only file rewriting startedreadonly you can't write against a read only replica. clearing 10.1.33.114:8014 ...background append only file rewriting startedokclearing 10.1.33.109:8025 ...background append only file rewriting startedreadonly you can't write against a read only replica. clearing 10.1.33.105:8005 ...background append only file rewriting startedokclearing 10.1.33.108:8008 ...background append only file rewriting startedok |
2.2 clear_redis_cluster.sh內(nèi)容
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#!/bin/bash# writed by yijian on 2018/8/20# batch to clear all nodes using flushall command# 用來清空一個redis集群中的所有數(shù)據(jù)，要求 flushall 命令可用，# 如果在 redis.conf 中使用 rename 改名了 flushall，則不能執(zhí)行本腳本。# 可帶兩個參數(shù)：# 1）參數(shù)1 集群中的任一可用節(jié)點(diǎn)（必須）# 2）連接redis的密碼（設(shè)置了密碼才需要）redis_cli=${redis_cli:-redis-cli}redis_ip=${redis_ip:-127.0.0.1}redis_port=${redis_port:-6379}# 顯示用法函數(shù)function usage(){ echo "usage: clear_redis_cluster.sh a_redis_node_of_cluster redis_password" echo "example1: clear_redis_cluster.sh '127.0.0.1:6379'" echo "example2: clear_redis_cluster.sh '127.0.0.1:6379' '123456'"}# 檢查參數(shù)個數(shù)if test $# -lt 1 -o $# -gt 2; then usage exit 1fi# 第一個參數(shù)為集群中的節(jié)點(diǎn)，redis_node="$1"# 第二個參數(shù)為密碼redis_password=""if test $# -ge 2; then redis_password="$2"fi# 取得ip和端口eval $(echo "$redis_node" | awk -f[\:] '{ printf("redis_ip=%s\nredis_port=%s\n",$1,$2) }')if test -z "$redis_ip" -o -z "$redis_port"; then echo "parameter error: \`$redis_node\`." usage exit 1fi# 確保redis-cli可用echo "checking \`redis-cli\` ..."which "$redis_cli" > /dev/null 2>&1if test $? -ne 0; then echo "command \`redis-cli\` is not exists or not executable." echo "you can set environment variable \`redis_cli\` to point to the redis-cli." echo "example: export redis_cli=/usr/local/bin/redis-cli" exit 1fiif test -z "$redis_password"; then redis_nodes=`redis-cli -h $redis_ip -p $redis_port cluster nodes | awk -f[\ \:\@] '!/err/{ printf("%s:%s\n",$2,$3); }'`else redis_nodes=`redis-cli --no-auth-warning -a "$redis_password" -h $redis_ip -p $redis_port cluster nodes | awk -f[\ \:\@] '!/err/{ printf("%s:%s\n",$2,$3); }'`fiif test -z "$redis_nodes"; then # standlone（非集群） if test -z "$redis_password"; then $redis_cli -h $redis_ip -p $redis_port flushall async $redis_cli -h $redis_ip -p $redis_port bgrewriteaof else $redis_cli --no-auth-warning -a "$redis_password" -h $redis_ip -p $redis_port flushall async $redis_cli --no-auth-warning -a "$redis_password" -h $redis_ip -p $redis_port bgrewriteaof fielse # cluster（集群） for redis_node in $redis_nodes; do if test ! -z "$redis_node"; then eval $(echo "$redis_node" | awk -f[\:] '{ printf("redis_node_ip=%s\nredis_node_port=%s\n",$1,$2) }') if test ! -z "$redis_node_ip" -a ! -z "$redis_node_port"; then # clear echo -e "clearing \033[1;33m${redis_node_ip}:${redis_node_port}\033[m ..." if test -z "$redis_password"; then result=`$redis_cli -h $redis_node_ip -p $redis_node_port flushall async` $redis_cli -h $redis_node_ip -p $redis_node_port bgrewriteaof else result=`$redis_cli --no-auth-warning -a "$redis_password" -h $redis_node_ip -p $redis_node_port flushall async` $redis_cli --no-auth-warning -a "$redis_password" -h $redis_node_ip -p $redis_node_port bgrewriteaof fi if test ! -z "$result"; then # success if test "$result" = "ok"; then echo -e "\033[0;32;32m$result\033[m" else echo -e "\033[0;32;31m$result\033[m" fi fi fi fi donefi |
這位仁兄的腳本寫的特別好。直接執(zhí)行即可。
2.3 確認(rèn)刪除成功
使用redis工具查看：
3.清理單機(jī)redis
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flushall |
4.總結(jié)
使用腳本刪除redis集群中的數(shù)據(jù)。
記得地址哦：https://github.com/eyjian/redis-tools/blob/master/clear_redis_cluster.sh
到此這篇關(guān)于詳解如何清理redis集群的所有數(shù)據(jù)的文章就介紹到這了,更多相關(guān)清理redis集群數(shù)據(jù)內(nèi)容請搜索服務(wù)器之家以前的文章或繼續(xù)瀏覽下面的相關(guān)文章希望大家以后多多支持服務(wù)器之家！
原文鏈接：https://blog.csdn.net/fsjwin/article/details/111300274
