Questions tagged [redis-sentinel]

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Redis Sentinel backward compatibility
I have 4 KVM hosts (2 with Debian 8 and 2 with Debian 9) that are running a few virtual machines. On those virtual machines I'm running Redis 3....
asked 4 months ago
0 votes
1 replies
sentinel - prevent specific slaves being promoted
I have a setup: 3 sentinels, 1 redis master M1, 2 redis slave S1, S2. I don't want S2 being promoted to master when M1 down. How can I do it?...
asked 6 months ago
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Redis reaching max clients immediately on startup
We're having an issue hitting the max number of clients immediately after starting redis. When issuing a MONITOR command, we see thousands of INF...
asked 6 months ago
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1 replies
What is the expected behavior of Redis Sentinel if you accidentally write to a slave
I'm trying to figure out what the expected behavior is in a Redis Sentinel setup (NOT Redis Cluster) if you accidentally issue a write command (s...
asked 8 months ago
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Redis Sentinels can not connect to slaves
I have 1 master and 2 slave redis servers. I configured sentinel.conf in all the 3 servers as same(sentinel port-26379). When I start the Sentin...
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Memorystore vs Redis Sentinel
If I've already implemented Redis Sentinel to handle failover, are there any real advantages to switching to Google Cloud Platform's Memorystore?...
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How we could switch from redis sentinel to redis cluster to be used on AWS ElastiCache? (PHP, Symfony 2.8)
I'm new on AWS ElastiCache and redis, we have a symfony project, who use Redis Sentinel, but now we have to switch to RedisCluster on AWS ElastiC...
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Redis Sentinel Readonly Slave with no Auth
Setup: I have three machines with co-located Sentinel/Redis, exactly as in example-2, configured with sentinel auth-pass, masterauth, requirepass...
asked 7 months ago
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sentinel config-epoch and sentinel leader-epoch are the same
Figured out that sentinel config-epoch value and sentinel leader-epoch value are set to the same no on redis master in /etc/redis/sentinel.conf....
asked 7 months ago
0 votes
1 replies
Jedis behave unexpectedly with multiple sentinel in redis
I am using Spring 2.1.1 and Redis 4.0.1. I have configured two node computers one with IP:192.168.20.40 with master configuration and other with...
asked 8 months ago
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2 replies
Spring Redisson Sentinel Error - At least two sentinels are required
I am using Sentinel mode for Redis. I am using Redisson Client version 3.9.1 <dependencies> <dependency> <groupId>...
2 votes
0 replies
Setup Redis Sentinel with Multiple Hosts
I'm trying to connect my app to a redis sentinel but I noticed that it is possible to have multiple hosts for your sentinels. Does it mean that m...
asked 3 months ago
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Can I run 1 redis sentinel to monitor 3 redis servers
I have 3 redis servers running with 3 sentinels on each host 3 redis-3 sentinels(total 3 hosts) Can I run sentinel on a separate host or it sho...
asked 3 months ago
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Redis advantages of Sentinel and Cluster
I'm planning to create a high available Redis Cluster. After reading many articles about building Redis cluster i'm confused. So what exactly are...
asked 3 months ago
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Configuration Redis Sentinel
I have a master and a slave set up, I wish with sentinel to realize that when the teacher fails, the slave takes his place, that is to say become...
asked 3 months ago
4 votes
3 replies
How to connect to redis deployed on Google Cloud?
Case Basics: Deployed a redis instance (single instance) in Google Cloud. Using NodeJS based server and redis-sentinel library to connect to the...
6 votes
0 replies
Redis HA setup on AWS with sentinels - redis-nodes seen by different sentinels end up on endless loop
Our setup 3x redis sentinels one on each AWS Sydney AZ 2 to 500 redis nodes with a master and a multiple slaves that scales horizontally automa...
8 votes
1 replies
Redis sentinel docker image / Dockerfile
I'm looking to deploy high availability Redis on a coreOS cluster, and I need a Redis Sentinel docker image (i.e. Dockerfile) that works. I've ga...
asked 5 years ago
4 votes
0 replies
Redis services loses connection every day in same time
We use a Redis (version 2.8) with Windows in our production servers. And have next "master-slave"configuration: 3 services in separate servers...
7 votes
1 replies
Cant connect to Sentinel with redis-cli on UbuntuBash
I have installed Ubuntu Bash on Windows 10 PC. After that installed Redis using apt-get install command I could connect to redis using redis-cli...
asked 2 years ago
5 votes
2 replies
Redis sentinel local cluster setup in windows
I'm trying to set up a redis-sentinel cluster locally. I'm running Redis-64.2.8.4 on windows . I'd like to set up a master with 2 slaves as that...
asked 5 years ago