redis sentinel喷出大量垃圾信息sentinel-address-switch

Posted 2021-06-30 QQ_851228082

现象

redis的sentinel日志文件中，一直重复输出日志

2633:X 02 Apr 08:39:03.126 * +sentinel-address-switch master mymaster53 172.17.30.54 6000 ip 172.17.30.94 port 26378 for mkj7yhvd47i9n4f1251juht56789bfnbg6y8cd43
2633:X 02 Apr 08:39:04.281 * +sentinel-address-switch master mymaster53 172.17.30.54 6000 ip 172.17.30.94 port 26379 for gy7hb865dswem9612515d93117yhjgvc5floxd8b
2633:X 02 Apr 08:39:04.487 * +sentinel-address-switch master mymaster53 172.17.30.54 6000 ip 172.17.30.53 port 26378 for mkj7yhvd47i9n4f1251juht56789bfnbg6y8cd43
2633:X 02 Apr 08:39:04.999 * +sentinel-address-switch master mymaster53 172.17.30.54 6000 ip 172.17.30.53 port 26379 for gy7hb865dswem9612515d93117yhjgvc5floxd8b
2633:X 02 Apr 08:39:05.198 * +sentinel-address-switch master mymaster53 172.17.30.54 6000 ip 172.17.30.94 port 26378 for mkj7yhvd47i9n4f1251juht56789bfnbg6y8cd43
2633:X 02 Apr 08:39:06.323 * +sentinel-address-switch master mymaster53 172.17.30.54 6000 ip 172.17.30.94 port 26379 for gy7hb865dswem9612515d93117yhjgvc5floxd8b

原因

是因为172.17.30.53和172.17.30.94两台服务器分别有两个哨兵，哨兵配置了相同的myid，gy7hb865dswem9612515d93117yhjgvc5floxd8b、mkj7yhvd47i9n4f1251juht56789bfnbg6y8cd43，所以53和94
在竞争同一个myid。

sentine.conf中，26378端口和26379端口配置重复

port 26378
# Note: master name should not include special characters or spaces.
# The valid charset is A-z 0-9 and the three characters ".-_".
sentinel myid mkj7yhvd47i9n4f1251juht56789bfnbg6y8cd43

port 26379
# Note: master name should not include special characters or spaces.
# The valid charset is A-z 0-9 and the three characters ".-_".
sentinel myid gy7hb865dswem9612515d93117yhjgvc5floxd8b

解决

myid改为不同就可以了。

总结

这个问题通常是因为复制了相同的哨兵配置引起，修改myid为不同即可解决。

参考

What is the importance of event +sentinel-address-switch in Redis Sentinel log file