Excuse me! I have 2 service in docker container that has different IP. They are use the same redis-server. When I use service1 to create redis cache, then I use service2 to get redis cache. but it can't get the redis cache. So could I use different services to get the same redis cache that use the same redis-server?
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I am using Redis Cluster on 3 Linux servers (CentOS 7). I have standard configuration i.e. 6 nodes, 3 master instances, and 3 slave instances (one master have one slave) distributed on these 3 Linux servers. I am using this setup for my web application for data caching, HTTP response caching. My aim is to read primary and write secondary i.e. Read operation should not fail or delayed.
Now I would like to ask is it necessary to configure any load balancer before by 3 Linux servers so that my web application requests to Redis cluster instances can be distributed properly on these Redis servers? Or Redis cluster itself able to handle the load distribution?
If Yes, then please mention any reference link to configure the same. I have checked official documentation Redis Cluster but it does not specify anything regarding load balancer setup.
If you're running Redis in "Cluster Mode" you don't need a load balancer. Your Redis client (assuming it's any good) should contact Redis for a list of which slots are on which nodes when your application starts up. It will hash keys locally (in your application) and send requests directly to the node which owns the slot for that key (which avoids the extra call to Redis which results in a MOVED response).
You should be able to configure your client to do reads on slave and writes on master - or to do both reads and writes on only masters. In addition to configuring your client, if you want to do reads on slaves, check out the READONLY command: https://redis.io/commands/readonly .
My situation is this:
Site "A" (Romania): multiple apphost (1 per PC) exanging serverevents using Redis Backpane.
Site "B" (Turkey): multiple apphost (1 per PC) exanging serverevents using Redis Backpane.
Now, I need to create on Site "0" (italy) a "collector" of all sites serverevents. How can I do it? Is it possible?
I am using ServiceStack 5.4.0 with MSOpenTech Redis 3.0.
ServiceStack's Redis Server Events lets you connect to a Redis Master instance either directly or via Redis Sentinel but doesn't support having AppHosts connect to the same geographically distributed Redis cluster.
How to get all connected clients of a redis cluster?
I am using AWS elasticCache redis with non cluster mode and redission as my redis client.
My Use Case:
I need to run specific code from only 1 connected redis client.
Thanks
redis has command about client information like CLIENT LIST, check out this page .
you could checkout this page for the command redisson has not supported yet.
I am just starting to use Redis for the first time. I have gone through the documentation and I came to know that Redis can be used in replication mode. But, I have some questions which are still un-answered. Let's have a quick view of use-case
I have a clustered environment of Drupal 7 code base.
There are two web servers web1 and web2 and two DB servers DB1 and DB2
DB1 and DB2 are running in master-slave mode
I have to setup Redis on both web1 and web2, web1 as master and web2 as slave
I need same backend/disk storage for both master and slave
Is it possible to setup same backend/disk storage for both master and slave?
A solution can be that I use Redis on a single server, e.g on web1. In this case requests on web2 uses Redis cache of web1. In this case I will get a delay by network. I want to avoid this situation because I want to utilize full performance of Redis i.e reading from the memory.
Is there any other workaround?
If your master Redis instance is on Web1 then all writes will have to go here. You can however read from the slave instance on Web2 locally.
http://redis.io/topics/replication
The redis cache offered by CloudFoundry has a small capacity, i.e. 16MB.
I know redis has a command "FLUSHALL" which is used to delete all the keys in the cache. How to do the same thing in cloudfoundry?
You can recreate and rebind the service as you wish unless you have any specific configuration that cannot be migrated. (I assume services provisioned by CF.com should be created as the same.)
Also sending FLUSHALL to the redis tunnel should be another option if you have vmc and caldecott gem installed as well as a redis execution locally. Would you mind if you can send the error why you cannot connect to it?