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

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67 views

Strange CPU Loading peaks on web server

I have strange, very strange peaks of CPU loading on my website. normal loading about 2-3, when i have this peaks it is about 100-150 peaks may be in any time. not depends my normal loading ...
2
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1answer
417 views

Resque(Redis) On EC2 Micro Replciated to 3 availability zones

I'm going to build a failover setup for my resque jobs system wich uses Redis as a queue. The idea is to put 3 redises in different availability zones on micro instances and replicate them. Also would ...
1
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1answer
224 views

Redis server Memory Increased to 22GB and Crashed (OOM)

A redis server v2.8.4 is running on a Ubuntu 14.04 VPS with 8 GB RAM and 16 GB swap space (on SSDs). However htop shows that redis alone is taking up 22.4 G of memory! I do not think the redis ...
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1answer
520 views

Setting up multiple redis masters

In recent study, I was led to the belief that it is not possible for redis to be setup with multiple masters with each master having 2 slaves. ...
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1answer
238 views

How to check if redis master is OK?

On the documentation, they advice the monitor command. But it has a 50% performance penalty for the whole system, and how should I do that ? Whatching the ouput using SSH until I don't see anything ? ...
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1answer
353 views

Not able to setup juggernaut push notification server on ubuntu

I am developing a ruby on rails application to implement chat. I am not able to setup juggernaut server in production mode. I followed this guide to setup redis. and its working perfectly fine. Then ...
0
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1answer
41 views

Is it possible to force a specific program to use virtual memory?

Let say I have 1GB RAM Ubuntu, I need to run both memcached and redis on the same machine The usage of memcached is quite heavy (e.g. 1K read per second) and redis is less heavy (but still 10 read ...
0
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1answer
220 views

starting redis as a service fails on redhat 6.1

I have installed redis on a redhat 6.1 linux machine. I used the commands make make install cd utils ./install_server I used all default settings so I can start the server with the redis-server ...
0
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1answer
29 views

Way to test (dry-run) redis-server config

With nginx you can start the server, change the config file, and then run: nginx -t Which will tell you if the config file is valid or not before you try to restart nginx. Is there similar ...
0
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1answer
180 views

forward Redis requests across AWS regions

I have a Redis instance running on AWS Elasticache in US-East. I have VPN servers running in Tokyo and US-East. The problem: How to allow Redis connections while VPNd to the Tokyo VPN? You can only ...
0
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1answer
142 views

My redis' fork time is slow and impact query performance a little. What should I do to check?

I used redis with RDB option only. It used 2GB of memory. When it forked, it used about 10 seconds to completely save the file. When I check up with redis.io site, I found this latency stat: - Linux ...
0
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1answer
137 views

Nginx configure to handle request from Redis

I'm trying to configure handle request direct from nginx using redis cache, cache already added to redis the problem is to configure nginx get the cache from redis URL is like ...
0
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1answer
75 views

Why redis instance is dropping keys

Here is my Redis graph from graphite for the past 72 hours displaying current_keys. as you may notice one instance ( green ) is dropping keys regularly, while other one is ok.. Both of them were ...
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1answer
462 views

Redis error on start: invalid bind address

I am seeing in the following in my redis log: [1398] 17 Jun 22:55:53.467 # Opening port 6379: invalid bind address When trying to start redis with service redis start. However, I confirmed that is ...
0
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1answer
634 views

Production redis server has 100% cpu usage

My production redis server has gone mad and has been hogging up 100% of CPU usage. I have done everything that I can from upgrading redis server to restarting the machine. I can't figure out what's ...
0
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1answer
391 views

Allowing access to redis port for only specific servers with ufw

I've installed ufw on my Ubuntu 10.04 server. The only thing running on that server is going to be ElasticSearch and Redis. Redis uses port 6379. I only want two different IPs to be able to access the ...
0
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1answer
546 views

fsockopen(): unable to connect to 127.0.0.1:6379

Im running centOs 6.3, I installed redis-server via remi repository on my local machine. I can run the redis cli. But when I try to connect via php script I get fsockopen(): unable to connect to ...
0
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1answer
187 views

Moving Redis persistence to a slave

Redis' background AOF rewrites are killing performance of our service. The general consensus is to move AOF persistence to a slave in a separate VM and disable it on master. There is a problem with ...
0
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1answer
775 views

Keepalived not honoring nopreempt

I'm using Keepalived to manage two Redis instances in a master/slave configuration. I'm experiencing a situation where, if Keepalived is terminated on the Master box (the one with the higher ...
0
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1answer
506 views

Monitoring queue depth of resque/resque-scheduler

I'm looking for a way to monitor the "queue depth" of my resque and resque-scheduler redis instances. Currently I am using god to ensure the resque and resque-scheduler tasks are running, and I use ...
0
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1answer
745 views

How to send task to celery using redis pubsub with postgresql?

How do you send task to celery through redis pubsub once a new record has been inserted into a postgresql table? My problem here is to get redis to listen for inserts in my postgresql table, and when ...
0
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1answer
627 views

Deploying Memcached as 32bit or 64bit?

I'm curious about how people deploy memcached on 64 bit machines. Do you compile a 64bit (standard) memcached binary and run that, or do people compile it in 32bit mode and run N instances (where N = ...
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1answer
2k views

Booting the server redis no errors

The redis but usually begins with the following errors: tyler @ tyler-vortex: ~ / pens $. / src / redis-server [3690] Dec 01 10:56:05 # Warning: the specified config file, using the default config. ...
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0answers
144 views

Putting a NetScaler infront of Redis master failover

I have a redis-sentinel solution for master failover, I just need to setup a vserver with all the master services in the pool. Only one master can act as the master at a time, the rest are slaves ...
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0answers
16 views

Redis Time() command returns an empty result

Our Redis server behaves strangely under high load. When calling the Time() command it will occasionally return an empty result (not an Exception, just empty result). Is this an expected behavior ...
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0answers
143 views

Why bgsave on redis make data read slower?

Bgsave command is a command to fork redis a new process and do background saving on a new core of processor. However, my 2GB data on redis (about 1 GB for RDB after save) is slowdown my data transfer ...
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474 views

Copied redis dump.rdb server to new server, only loads < 5 MB into memory instead of ~1 GB from previous server

I am migrating redis servers (from 2.2 to 2.6, if that's relevant), and after I do a "SAVE" on the old box and copy the file to the new box, I put it in the same location from /etc/redis/redis.conf as ...
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0answers
190 views

Trying to compile phpredis on a mac using phpize54

I installed php 5.4 using mac port. I then git cloned the phpredis repository ( https://github.com/nicolasff/phpredis ). Then, I execute these commands: phpize54 ./configure make && make ...
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0answers
165 views

Large scale custom domain support for a hosted web service

I am running a hosted platform for publishing Markdown documents. Currently I offer a subdomain per user, but the number one request right now is custom domains. My server stack is NGINX and uWSGI ...
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0answers
4 views

Nginx directive for redis_connect_timeout doesn't work as expected

I'm using the Nginx HttpRedis, HttpRedis2, and HttpSRCache modules so that I can use Redis for caching. This works well, but I have problems when my Redis server is unavailable. If the host itself ...
0
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0answers
29 views

Access ElasticCache Redis instance within VPC from a classic instance

I have an existing AWS EC2-Classic deployment that I am seeking to add a small Redis instance to. As this only needs to be a tiny Redis instance I elected to use the t2.small size. I've since found ...
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0answers
52 views

Updating openssl to fix heartbleed bug tries to remove redis-server

I am trying to fix openssl heartbleed bug on my server. I read that I can update the openssl version with the following command: sudo apt-get install openssl libssl1.0.0 But when i try to run this ...
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79 views

debian redis update-rc.d errors - there is a loop between redis and nginx

I tried to install redis as a service in debian 7 wheezy(redis version 7) by following the instructions from http://redis.io/topics/quickstart but after running sudo update-rc.d redis_6379 defaults ...
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0answers
112 views

Maintaining a progress counter across multiple PHP worker threads using Gearman

I've set up an Amazon EC2 instance running Gearman and 10 worker threads written in PHP. I'm also utilising MySQL and Redis. For each user that signs up to my website up to 1,000 Gearman jobs are ...
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0answers
326 views

Restarting redis after installing with Ansible hangs

I'm using the following playbook albeit slightly modified with a newer version of Redis: https://github.com/Kami/ansible-redis I removed the Disable obsolete init.d service and generate upstart ...
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0answers
123 views

How to use Redis as a cache backend for uwsgi_cache in Nginx

I'm using Nginx with HttpUwsgiModule and i want to perform caching. I know that there is a uwsgi_cache which can be used to cache pages on the local file system. But i want to use Redis to cache pages ...
0
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0answers
111 views

Performance drop after hours of runtime - how to detecting bottleneck

I am running a local database server for 1 client machine. My DB server runs redis (version 2.6.13) and mysql (5.5.31-30.3-log Percona Server (GPL), Release 30.3). I have 1 Client machine that runs a ...