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redis哨兵常用命令和監(jiān)控示例詳解

更新時(shí)間：2021年05月26日 16:54:20 作者：knowledge-is-power

哨兵模式是一種特殊的模式，首先Redis提供了哨兵的命令，哨兵是一個(gè)獨(dú)立的進(jìn)程，作為進(jìn)程，它會(huì)獨(dú)立運(yùn)行，接下來(lái)通過(guò)本文給大家講解redis哨兵常用命令和監(jiān)控知識(shí)，感興趣的朋友一起學(xué)習(xí)吧

sentinel monitor advertise 192.168.0.5 28001 2
sentinel set advertise client-reconfig-script /etc/redis/reconfig.sh
sentinel flushconfig

sentinel啟動(dòng)后需要手動(dòng)將配置文件對(duì)應(yīng)的調(diào)整為sentinel deny-scripts-reconfig no,否則不支持命令行runtime修改client-reconfig-script
# SECURITY
#
# By default SENTINEL SET will not be able to change the notification-script
# and client-reconfig-script at runtime. This avoids a trivial security issue
# where clients can set the script to anything and trigger a failover in order
# to get the program executed.

#sentinel deny-scripts-reconfig yes

role命令
查看sentinel monitor的master names名字

sentinel masters
查看所有監(jiān)控master及其配置信息

sentinel master monitor_name
查看指定監(jiān)控master及其配置信息

sentinel failover monitor_name
手動(dòng)進(jìn)行swithover切換主從，如果有多個(gè)slave會(huì)選擇哪個(gè)slave做為新的master，待測(cè)試？

sentinel moniotr <name> <ip> <port> <quorum>
添加監(jiān)視的master

sentinel remove monitor_name
將監(jiān)視的為name的master移除監(jiān)視

sentinel set <mastername> [<option> <value>]
修改監(jiān)視的master的一些屬性
down-after-milliseconds 過(guò)了這個(gè)時(shí)間考慮master go down
failover-timeout 刷新故障轉(zhuǎn)移狀態(tài)的最大時(shí)間
parallel-syncs slave同時(shí)reconfigure的個(gè)數(shù)
notification-script 設(shè)置通知腳本
client-reconfig-script 設(shè)置通知腳本
auth-pass 執(zhí)行auth的密碼
quorum 修改master的quorum

sentinel flushconfig

將sentinel信息寫入到配置文件中

sentinel配置文件示例：

daemonize yes
pidfile "/home/redis/sentinel/25000/redis.pid"
loglevel notice
protected-mode yes
bind 192.168.100.5
logfile "/home/redis/sentinel/25000/redis.log"
port 25000
dir "/home/redis/sentinel/25000"
# Generated by CONFIG REWRITE
sentinel myid 0338c4ceb7cf39a8037a22fa17d0f7a76923b5a0
sentinel deny-scripts-reconfig no
sentinel monitor advertise 192.168.100.5 28001 2
sentinel client-reconfig-script advertise /etc/redis/reconfig.sh
sentinel config-epoch advertise 4
sentinel leader-epoch advertise 4
sentinel known-replica advertise 192.168.100.6 28001
sentinel known-sentinel advertise 192.168.100.7 25000 06f937e1d35496dc66d2899e3b25e286ff91d658
sentinel known-sentinel advertise 192.168.100.6 25000 ede86ac0b7d2ff7b532d0e5352ba6e33dd36670e
 
sentinel monitor mymaster1 192.168.100.6 28002 2
sentinel client-reconfig-script mymaster1 /etc/redis/reconfig.sh
sentinel config-epoch mymaster1 5
sentinel leader-epoch mymaster1 1
sentinel known-replica mymaster1 192.168.100.5 28002
sentinel known-sentinel mymaster1 192.168.100.7 25000 06f937e1d35496dc66d2899e3b25e286ff91d658
sentinel known-sentinel mymaster1 192.168.100.6 25000 ede86ac0b7d2ff7b532d0e5352ba6e33dd36670e
sentinel current-epoch 5

sentinel client-reconfig-script腳本示例

#!/bin/bash
 
check_time=$(date +"%F-%T")
master_name="$1"
from_ip="$4"
from_port="$5"
to_ip="$6"
to_port="$7"
 
 
#填寫自己正確的機(jī)器人鏈接
curl 'https://qyapi.weixin.qq.com/cgi-bin/webhook/send?key=xxxx' \
   -H 'Content-Type: application/json' \
   -d '
   {
        "msgtype": "text",
        "text": {
            "content": "【'$check_time' '$master_name' redis failover】\nfrom\n'$from_ip:$from_port'\nto\n'$to_ip:$to_port'",
            "mentioned_list":["xiaodongl"]
        }
   }'

以上就是redis哨兵常用命令和監(jiān)控的詳細(xì)內(nèi)容，更多關(guān)于redis哨兵常用命令的資料請(qǐng)關(guān)注腳本之家其它相關(guān)文章！

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