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

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redis socket file disappears after reboot?

I installed redis and I am setting it to use a socket. It works fine at the beginning but if I reboot the machine (ubuntu 14.04 via vagrant on virtualbox), Redis does not start anymore and displays ...
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35 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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1answer
54 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 ...
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1answer
127 views

Proxy over redis, HAProxy or twemproxy?

The best way to hide switching of master/slave redis servers, is to use a proxy over master server. Among proxy candidates, there is two more important (and used) choices: twemproxy and ...
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55 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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1answer
83 views

FreeRADIUS and Redis Module

I am wanting to use FreeRADIUS with REDIS for authorisation and accounting. I am running FreeRADIUS 3.0.3. I note the rlm_rediswho module, which appears to be used for caching recent accounting ...
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0answers
57 views

Howto prevent ntopng causing out of disk space and inodes?

I've been trying the ntopng software from http://www.ntop.org/get-started/download on a CentOS box at work to monitor what is happening on our network. The problem I'm having is that I can't find any ...
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2answers
352 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 ...
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1answer
20 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
86 views

How can I disable an Azure Redis Cache?

I have been experimenting with the Azure Redis Cache preview, and so far, so good. However, when I am not using it, I would like to disable it so that it is not consuming memory and not accessible. ...
0
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1answer
64 views

Redis security using stunnel and AUTH

Im a redis newbie but want to make sure everything is setup securely as we deal with medical info. I have a few EC2 instances. One of which is a server that runs two redis instances, one for a dev ...
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1answer
1k views

Why isn't systemctl starting redis-server on CentOS 7?

I've installed redis on a new CentOS 7 box but can't start it using systemctl. It was installed like this: rpm -i http://dl.fedoraproject.org/pub/epel/beta/7/x86_64/epel-release-7-0.2.noarch.rpm yum ...
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1answer
152 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
340 views

Using Logstash as shipper?

We are shipping logs from servers and using THE logstash on each server for shipping. So we read logs from the glob "/root/Desktop/Logstash-Input/**/*_log". input { file{ ...
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2answers
164 views

Is installing multiple redis instances on the server a good idea?

As title says. I'm considering creating a state service farm using redis, and I'd like to handle multiple "regions" - that way, if a service goes down only a single region should be affected. This may ...
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1answer
149 views

Bjoern is 4x faster than Nginx - how to tweak Nginx to handle Bjoern proxy_requests without performance loss? [closed]

I was trying to put Bjoern behind Nginx for easy load-balancing and DoS/DDoS attack mitigation. To my dismay I not only discovered that it drops connections like chips (it varies between 20% and 50% ...
3
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1answer
97 views

Installing additional LUA modules into Redis

I'm trying to get Redis to allow EVAL (http://redis.io/commands/EVAL) to make HTTP requests. Two modules: LuaCURL and Luasocket give this ability. The Redis source code has a directory with ...
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91 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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1answer
32 views

Which server should i put my message queue on: my worker server or my application server?

I have two EC2 servers. One is the application server (serving HTTP/S requests) and one is a "worker" server processing jobs. I am wanting to move to use Huey (a task queue) which uses Redis as a ...
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0answers
271 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 ...
5
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1answer
541 views

Redis connection issue

We are currently experiencing a lot of Redis errors with the message Unable to connect: read error on connection, trying next server We run Redis on FreeBSD using PHP Redis and we have a hard ...
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1answer
267 views

Single redis instance with local redis connections via unix socket and remote via tcp. Possible?

I have local Redis instance listening on Unix socket. Is it possible to allow remote connections to this Redis instance via TCP? Any solutions? Maybe some kind of proxying TCP <> Unix socket?
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1answer
136 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 ...
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1answer
537 views

Caching (memcache/redis) and multiple servers - best strategy

We're considering best strategy for using cache (memcache or redis based) in our application (Symfony2). It will be deployed on multiple (so far 3) separate machines with load balancing and separate ...
1
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1answer
114 views

For redis slave's persistence model, is there a better way other than rsync rdb from slave to master?

My redis machine's rdb size is about 1 GB. My app use redis heavily and cannot let the master handle bgsave or else, it will slow down all the system in master's machine down. So, I have to prevent ...
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94 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 ...
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0answers
135 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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1answer
297 views

Can I created nested discovery rules in Zabbix?

I have installed Zabbix for monitoring some machines I'm responsible for. A few hosts in this setup run multiple redis instances running on different ports and each instance has multiple databases. I ...
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0answers
99 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 ...
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2answers
128 views

Can Redis RDB corrupt?

In redis.io site, it states that RDB is less durable than AOF. Does this mean there is some possibility of database corruption, and complete data loss if power is lost during a save operation?
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2answers
336 views

Redis: Configuration Options for limiting key/value sizes?

My boss recently asserted, in conversation, that Redis supports some configuration options for controlling maximum key or key/value sizes ... so we could set some option to prevent our applications ...
6
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2answers
2k 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 ...
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2answers
1k views

How to install Redis with Chef?

I am trying to install Redis with Chef. I would think, it's easy, since I only want to have the default configuration. So, I add to a Berksfile: site :opscode cookbook 'apt' cookbook 'node' ...
0
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1answer
47 views

Redis cluster RTT

We are currently using Redis as our data store. I am making a new section where we need to rank and paginate users. So i am thinking to use Sorted set for keeping rank and userid. And Hash for keeping ...
0
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1answer
121 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 ...
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2answers
299 views

Static master in Redis replication

I'm running replicated Redis that includes a master and just one slave. My goal is to implement a replication (using Redis sentinels) in which the slave becomes master when the master goes down, but ...
0
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1answer
109 views

Redis 2.8 Memory efficiency make test error

I'm attempting to install Redis 2.8 but when I ran make test, it threw out an error for this: * [err]: Memory efficiency with values in range 16384 in tests/unit/memefficiency.tcl Expected ...
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1answer
66 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
42 views

Redis: INFO doesn't report network/bandwidth metrics?

Is there a way to get network/bandwidth metrics from a given Redis process? Something I missed in the output of the INFO command? Some patch or compile time configuration option? Or would I need to ...
3
votes
1answer
936 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
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1answer
281 views

redis: setting 'maxclients' on the fly

How do you set maxclients to X in redis? I know that it should look something like this: config set maxclients X but I keep getting the follow errors (error) ERR Unsupported CONFIG parameter: ...
0
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1answer
173 views

How does LogStash handle Redis input restart?

I have Redis v2.4.5 configured as an input for LogStash v1.2.1 When Redis restarts, LogStash continues to keep an open connection (according to netstat), but no longer reads messages from the list. ...
0
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1answer
546 views

Default Time To Live (TTL) on AWS Elasticache Redis implementation

What is the default Time To Live (TTL) in the AWS Elasticache Redis Implementation? I figured I could get it from the redis-cli, but looks like it doesn't support the CONFIG GET * syntax generally ...
1
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1answer
98 views

What's the default username and password for the VM Depot “Redis Server 2.6.9 Ubuntu 12.04 LTS”?

I've got this server running on a local Hyper-V host, but can't log in because I don't know the username and password for it. http://vmdepot.msopentech.com/Vhd/Show?vhdId=147&version=254 I set ...
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2answers
192 views

Permissions error trying to dump Redis to a Vagrant shared folder

I keep getting a permissions error when trying to dump the Redis .rdb file to my vagrant shared folder. The saves are working fine when going to the default /var/lib/redis location. A few things I've ...
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1answer
340 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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377 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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2answers
909 views

redis “No route to host” when pinging a remote redis host

I'm in the process of setting up a Resque server and am having to setup Redis for the first time. When using redis-cli to ping the remote server I get a "No route to host" error, however when I ...
0
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1answer
112 views

celery tasks from one domain appear on another domain's django admin hosted on the same box

I have a rather funny problem that I didn't manage to find it elsewhere. I have 2 django-celery projects running with redis on 2 different domains, but apparently hosted on the same box. I don't have ...
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1answer
44 views

Redis specific protocol

I was reading the redis documentation: http://redis.io/topics/quickstart And I come across this line "External programs talk to Redis using a TCP socket and a Redis specific protocol." TCP is the ...