Redis is an open source, highly-scalable key-value store, commonly referred to as a "NoSQL database."
Questions tagged [redis]
441 questions
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Is it better to have a centralized [redis] caching instance or per instance?
I have a VPC in AWS that contains a public and private subnet. In the private subnet, I have two load balanced EC2 app servers, and an EC2 Database/Cache server.
The two app servers connect to the Database/Cache server for database queries, but…

Barry Chapman
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Redis-cli --cluster create command is not working?
I have redis-server package through standard apt command, but when I'm trying to run redis-cli --cluster create its not working. I'm getting "Unrecognized option or bad number of args for: '--cluster'". Please help me to fix it.

John The Hacker
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Rspamd with Redis and security on a shared server
I'm considering switching from SpamAssassin to Rspamd as everybody raves about it. The feature set like improved bayes filtering and easy greylisting sounds interesting. There's a catch though: Rspamd requires Redis for all of this to work. And this…

ygoe
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Redis issue showing me `moved` while configuring redis in laravel app
I have two servers containing the same laravel application and both are connected with a load balancer. Everything works well with the same RDS. To make the site faster I have created a Redis cluster on Elasticache and added the endpoint on the…

MD Nasirul Islam
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Best practice in Redis is to rename the command 'FLUSHDB'. But now I get an error with Laravel when I want to clear the cache
In Laravel, you can set the cache to Redis. However, when I clear the cache with php artisan cache:clear, I get the error: ERR unknown command 'FLUSHDB'
I know what the problem is because I have disabled the command as one should do for best…

Philipp Mochine
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How to estimate the max number of connection an AWS ElasticCache Redis cluster can support?
Is there any formula or "rule of thumb" I can apply to make an estimate of maximum number of connections a redis cluster hosted on AWS ElasticCache can support?
My cluster currently has 3 shards and 1 replica per shard. The node type is…

Anthony Kong
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does running redis-cli with --rdb block the redis instance?
i have a couple of redis instances which are running RDB mode.
currently if i want to backup my instances i run BGSAVE command and copy the rdb file.
i want to get the rdb file on a remote machine so i searched for a solution and saw that redis-cli…

moses
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Docker fails external connectivity for Redis
I have tried all the possible solutions available on either StackOverflow or other forums, that I could find. I begin installing redis with docker by actual instructions available on Hub Docker. But I was not able to connect to Redis outside…

nix
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One process in my server using 100% cpu
Please check below
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
2561 redis 20 0 2761160 2.3g 1028 S 200.0 30.0 58:33.49 sysupdate
2576 redis 30 10 577576 61120 540 S 194.7 0.8 54:20.02…

ANIK ISLAM SHOJIB
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I used elk+redis+filebeat to build the logging platform, and now after redis is replaced by codis, logstash reports???
I used elk+redis+filebeat to build the logging platform, and now after redis is replaced by codis, logstash reports:
# [2020-06-18T11:20:54,146][WARN ][logstash.inputs.redis] Redis connection problem {:exception=>#

鸿钧老祖
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Redis Server Exploit for command execution
I am new to this forum and looking for some help to understand this exploit. I am trying to check command execution on a vulnerable Redis server.
Following this document, I am able to exploit a Redis server but I am not able to type in any commands…

Sunny
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New and Unknown Netstat Entries
OS = Debian 10.
When I run netstat -natp, I have two unidentified entries which are concerning.
tcp 0 0 127.0.0.1:6379 0.0.0.0:* LISTEN 24310/redis-server
tcp6 0 0 :::4949 :::* …

branch.lizard
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ssh connection timed out, why sudo service sshd restart resolves it?
I have a little tricky behavior I can't explain. I have a virtual machine running Ubuntu 20.04, docker 19.03.6and arediscontainer. Hosted on aWindows 2019` Hyper-V machine.
There's a second virtual machine (same network but different physical…

Max Favilli
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What's so good about having a job queue?
I am currently building an API that sends transactional emails to users. I do this with a job queue, bull in particular. During development, something crossed my mind; where are these jobs actually executed? Currently, I send these jobs through bull…

Jonathan van de Groep
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new email server configured, Postfix, Dovecot, MariaDB, Rspamd and Redis the main components, on Arch, can't send or receive mail
Dovecot reports logins when trying to send (via T'bird). One of the online email testing sites reported:
Server 'HELO' line: 220-mail.mydomain.tld ESMTP Postfix so we know the SMTP service is ready, but follows with this:
Warning: Expected on…

Mike
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