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Questions tagged [redis]

Redis is an open source, highly-scalable key-value store, commonly referred to as a "NoSQL database."

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Is it possible to have a Cloudwatch alarm of the 'free memory' of a ElastiCache Redis cluster?

I'm looking to set up a cloudwatch alarm on a Redis cluster in ElastiCache rather than each individual node. Is this possible in cloudwatch? so far I've only found ways to set alarms on each individual node, however that isn't very scalable if in…
Matthew Bidewell
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Redis Sentinel Systemd services failing to start on Ubuntu 16.04 and CentOS 7

Having trouble getting my Redis sentinel systemd services to start. I can run sentinels manually with success -- e.g.: root@poolwc:/etc/redis# redis-sentinel ./sentinel.conf --sentinel Three redis servers at 10.9.8.1, .2, .3 .2 and .3 are slaves to…
Joenarr Bronarsson
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Redis Client not connecting to Redis server via HAProxy

I'm facing an issue while connecting to Redis server via HAProxy using Jedis as a redis client. Everything works fine when Redis server is directly connected to but, the same is not working via HAProxy. Both HAProxy and Redis services are running on…
Sandeep Singh
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HAProxy for Redis Sentinel: want BACKUP, not DOWN

I configured an HAProxy service for my Redis Cluster installation (3 nodes with Redis Sentinel managing the master delegation) and it works good: clients are redirected only to the master node and whenever a slave node becomes master, HAProxy…
Mat
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Systemd: Redis server wont start when run as a service - too many levels of symbolic links

I have recently ran into the issue from the subject. I have installed Debian 9 as a webserver (with nginx, php7.0-fpm and some other stuff) and I want to use redis with my PHP installation. When installing it from the official repos, the package…
j0hny
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HAProxy health check consecutive counts not resetting

We have two Redis servers behind an HAProxy server. One server is the master, which is up, and the other is the slave, which is down. If the master goes down, the sentinels elect the other server to be the master. That part is working fine. What's…
siride
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Health check to detect redis master from google tcp load balancer

I am trying to setup a google TCP internal Load Balancer. Instance group behind this lb consists of redis-server processes listening on port 6379. Out of these redis instances, only one of them is master. Problem: Add a TCP health check to detect…
Yadvendar
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Connect to private vlan ip address redis cache azure

I have a redis cache with Microsoft Azure and have a Virtual network with IP 172.160.0.99, when I try to connect using these IP this gave me error. I need other additional configuration for meet it?
PMCastle
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OpenVAS on CentOS7 Redis won't start

I am trying to get OpenVAS working per the the article below. https://www.atlantic.net/community/howto/install-openvas-vulnerability-scanner-centos-7 However it isn't working, when I run openvas-check-setup I get this error below and when I check…
Thorin
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Upgrading to a specific redis patch

I'm new to backend development in general and redis in particular. I'm currently trying out redis 2.8.4, but need to upgrade to redis 2.8.9 in order to leverage the lexicographical manipulation commands. How do I upgrade to this redis patch? I…
Hassan Baig
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Is it possible to migrate Memcached cluster data to Redis?

I have searched Google and SO and surprisingly haven't been able to find a very good answer to this. Basically, I want to know if there is any sort of method or best practice for migrating cache data from a Memcached cluster into a Redis cluster. …
jmreicha
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Uninstall Redis CentOs 7

I installed Redis a long time ago on my CentOS 7 DirectAdmin VPS. Now I want to remove the current version (3.0.5) and install the latest Redis 3.2.5. How can I remove the current version? I installed a time ago using the following commands: wget…
JGeer
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nginx redis upstream lots of TIME_WAIT to some servers after adding a new bunch to upstream

I have nginx upstream of redis servers (5 servers with 4 redis instances on every) like following: upstream redis_cluster { server 10.0.1.8:6379 fail_timeout=0; server 10.0.1.8:6380 fail_timeout=0; server 10.0.1.8:6381…
d.ansimov
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Redis cluster master restarting after a time period

I have a Redis cluster with 3 masters and 3 slaves. I can add data to the cluster and get data back, no problems. The issue comes when the data is saved to a master node. After a while the master will restart itself (see output below) and then the…
Interbred Monkey
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phpmyadmin + redis session save compatibility?

I'm facing a strange behavior on phpmyadmin + redis php session cache. Here is my php-fpm pool configuration : php_value[session.save_handler] = redis php_value[session.save_path] = "tcp://127.0.0.1:6379" This configurations works fine for a…
Julien
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