I am on CentOS 7 and I uninstall Redis by doing yum remove redis.
How can I be sure that the memory is cleared?
Before un-installing redis. Clear all keys from redis and shutdown redis-server using redis-cli:
redis-cli> FLUSHALL
redis-cli> SHUTDOWN
https://redis.io/commands/flushall
This will clean up all data from redis to release the memory
You can uninstall redis once cleanup is done and the redis process is stopped:
yum remove redis
Related
I want to give a try to the create-cluster script given in the redis documentation.
I did as the documentation indicates:
./create-cluster start
./create-cluster create
After the ./create-cluster create command, my computer CPU is going indefinitely to 100% of usage.
./create-cluster stop
When stopping the cluster instances, the CPU usage is back to normal usage.
What is going on? What can I do in the configuration to solve this?
My operating system is a Windows 10 version 21H2.
I installed the WSL Ubuntu 20.04 and run redis on it.
I installed the apt-get redis-server package.
didi#CHOUCHOU:~$ redis-server --version
Redis server v=6.2.6 sha=00000000:0 malloc=jemalloc-5.1.0 bits=64 build=9c9e426e2f96cc51
didi#CHOUCHOU:~$ redis-cli --version
redis-cli 6.2.6
I downloaded from github the create-cluster script.
https://raw.githubusercontent.com/redis/redis/6.2/utils/create-cluster/create-cluster
I am new to redis and I've just installed it using snap craft. All tutorials say that i can start redis server by typing redis-server in terminal. But for me it says that Command 'redis-server' not found. Is the process different if installed from snap?
Start Redis server:
sudo snap start redis
To run redis-cli copy it to /usr/local/bin/:
sudo cp /snap/redis/138/usr/bin/redis-cli
redis-cli
Ubuntu 18.04
My Redis-Server Version:
Redis server v=5.0.5 sha=00000000:0 malloc=jemalloc-5.1.0 bits=64 build=71f661bb00c4db91
My Redis-Cli Version:
redis-cli 5.0.5
However, my redis is running on 4.0.9, so please let me know how can I change the configure and make my redis running on 5.0. Thank you.
127.0.0.1:6379> info
# Server
redis_version:4.0.9
I found there are two versions of Redis-server in my environment, and after uninstalling the unmatched running version, it works properly.
I followed below steps to install Redis on CentOS. But Redis 3.2.x version got downloaded, I want more recent version (i.e 4.0.11 or 5.0.x) to be downloaded.
I need steps how to upgrade the Redis current installation? I used below steps while installation
We can use yum to install EPEL:
sudo yum install epel-release
As soon as we finish installing EPEL, we can use yum once again to install Redis:
sudo yum install redis
After a few minutes this installation will be completed and then you can start the Redis service:
sudo systemctl start redis.service
There is always the chance for Redis to start on boot, all you have to do is enable it through the enable command:
sudo systemctl enable redis
If you want to check Redis`s status you should run the following:
sudo systemctl status redis.service
I have found the Remi repository keeps up with the latest binaries. While you can add them to your repos (see https://rpms.remirepo.net), you can just point yum directly at the rpm file there as well (e.g. yum install -y http://rpms.remirepo.net/enterprise/7/remi/x86_64/redis-5.0.0-1.el7.remi.x86_64.rpm).
Edit: Regarding an upgrade, I assumed you don't have any data at this point, so I would suggest a quick yum uninstall redis before installing the latest. If you really need to upgrade with data and all, you need to just be sure to preserve your persistent data files and replace them before starting the new version.
I have just installed redis on MacOS. I'm following through the standard intro process. It says that in order start the DB I should call
$ redis-server
It also says that in order to confirm the server is running I should do the following:
$ redis-cli ping
PONG
I notice that I can ping the redis-cli as above and still get PONG back, even if I haven't executed redis-server. Does this mean that redis is running even if I don't exec redis-server?
If that is the case, how do I start and stop the local db?
Though you did not say, I guess you installed Redis using homebrew.
You can check what services you have started with homebrew using:
brew services list
Then you can use:
brew services start redis
and:
brew services stop redis