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

learn more… | top users | synonyms

3
votes
1answer
3k views

Redis sentinel + HAProxy failover

I am looking to implement a HA redis implementation using Master-Slave redis servers. The web servers will connect to these through an HAProxy instance installed on each box. The situation is easy ...
0
votes
1answer
177 views

Why is Uchiwa not able to monitor the datacenter on CentOS7?

This post combined with Install Sensu using YUM was used in order to install, configure and start Sensu and related services: sudo yum install -y erlang && \ sudo rpm -Uvh http://www.rabbitmq....
23
votes
3answers
20k views

SElinux: allow httpd to connect to a specific port

My system is running CentOS 6.4 with apache2.2.15. SElinux is enforcing and I'm trying to connect to a local instance of redis through my python/wsgi app. I get Error 13, Permission denied. I could ...
6
votes
2answers
10k views

Why does redis report limit of 1024 files even after update to limits.conf?

I see this error at the top of my redis.log file: Current maximum open files is 1024. maxclients has been reduced to 4064 to compensate for low ulimit. I have followed these steps to the ...
2
votes
1answer
627 views

Separate server for Resque workers

I'm trying to segment a few servers for a Rails project and part of that is entertaining the idea of isolating Resque workers to their own box. I already have Redis broken out, but is it common to ...
1
vote
2answers
1k views

Troubleshooting poor disk IO performance

Note that while this question is a little Redis-specific, the main problem is generic: a process takes so much HDD IO write bandwidth that other processes can't write anything. We've got an Ubuntu VM ...
1
vote
0answers
110 views

Problems with the sessions and HAProxy in OpenShift

I have written an application using Kraken and deploy in OpenShift with the option of auto-scaling (use HAProxy) but this has led me two problems: 1) HAProxy constantly sends requests to the ...
1
vote
1answer
272 views

Redis eats up more and more memory

I am running Redis 2.8.17 on Ubuntu 14.04 and yesterday Redis started eating up all the memory until it was killed by OOM. I restarted it multiple times, restarted the server, flushed all the data, ...
1
vote
1answer
2k views

What steps are required to ensure more than 1024 clients can connect to redis?

I require more than 1024 clients to be connected to a single redis instance at once. My redis process runs as user ubuntu. I have edited /etc/security/limits.conf to specify: ubuntu soft nofile 65535 ...
0
votes
1answer
168 views

Debian 8.4 jessie set open files limit for redis user

When starting redis 3.0.6 (installed from jessie-backports) under Debian 8.4 jessie, I get the following warning/error: 18127:M 13 Apr 15:12:38.730 # You requested maxclients of 10000 requiring at ...