How to remove Rabbitmq so I can reinstall - rabbitmq

I was having trouble, so I went into the registry and removed the service entry for rabbitmq. Now when I try to reinstall it says it already exists but it doesn't start (since I removed it) and I can do a sc delete rabbitmq. How do I totally remove all traces of it and reinstall from scratch? I guess it exists somewhere and the registry entry is all that is gone and the install program says it us just updating it when I do the rabbitmq-service install. I tried
rabbitmq-service remove but it says it doesn't exist.

I would suggest as follows:
sudo apt-get remove --auto-remove rabbitmq-server
sudo apt-get purge --auto-remove rabbitmq-server
It will uninstall rabbitmq and purge all data (users, vhost..)

RabbitMQ writes the service information into HKEY_LOCAL_MACHINE\SOFTWARE\Ericsson\Erlang\ErlSrv\1.1\RabbitMQ
To remove RabbitMQ manually you have to:
remove the key HKEY_LOCAL_MACHINE\SOFTWARE\Ericsson\Erlang\ErlSrv\1.1\RabbitMQ
remove the directory C:\Users\%USERNAME%\AppData\Roaming\RabbitMQ
remove the installation-folder.
Next time I suggest to use the rabbitmq-service.bat command to install and remove the service.
you have to execute it as administrator

You have to uninstall the Erlang and Rabbitmq both. After you are done with the uninstall, then try to install the Rabbitmq and it will ask you to install Erlang again.

Related

RabbitMQ Boot failed. Getting logger error

I am trying to run rabbitmq server on my mac and i keep getting this error:
Starting broker...Logger - error: {removed_failing_handler,rabbit_log}
BOOT FAILED
I have tried reinstalling it several times and even logged into local host but see the same error.
Managed to fix it. Ran these commands to fully uninstall RabbitMQ (vhosts, users too).
sudo apt-get remove --auto-remove rabbitmq-server
sudo apt-get purge --auto-remove rabbitmq-server
Then after I reinstalled everything worked.
Another possibility is that you are running it on Big Sur- it keeps on giving errors to me that I didn't get previously.
Try pip3 uninstall rabbitmq-server then pip3 install rabbitmq server- that worked for me.

Unable to install latest stable Release of Redis on CentOS 7

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.

Terminal command in fedora

What does the yum and -y means
yum install httpd -y
new to fedora. please guide me.
the above code will install Apache server in fedora
yum is a software package manager that installs, updates, and removes packages on RPM-based systems. It automatically computes dependencies and figures out what things should occur to install packages. yum makes it easier to maintain groups of machines without having to manually update each one using rpm.
-y means that we did't want to gave yes to install any package (here httpd)
httpd installs apache web server
Thanks for Support and advice

how to ask ambari agent not keep quiet when install packages in ubuntu

I'm installing new service in ambari managed cluster. my connection to hortonwork's repo seems too bad, it took lots of time to install ambari-server and ambari-agent it self (onece i almost thought it was dead).
the problem is that when i'm installing new service (e.g zeppelin, it also requires install other dependencies), the progress bar get stuck at 26% percent. it confused me if the installation get stucked or it's just too slow.
the command
ps -ef|grep apt
shows the the install is still there. only can't track the progress via /var/log/apt/term.log like normal apt-get installation (it shows the download progress).
the command shows the apt-get comes with an "-q" options which prevent me from tracking the log file.
so my question is that is there any place i can change the default behavior?
The -q option is added to "apt-get" command based on log level of ambari-agent. I.e. if log level for ambari-agent is set to DEBUG then apt-get without -q option is executed.
You can edit /etc/ambari-agent/conf/logging.conf, in [logger_root] section comment default line level=WARNING and add level=DEBUG. Then retstart ambari-agent. Now if you install any service them apt-get without -q will be executed.
Note:
If /etc/ambari-agent/conf/logging.conf does not exist then copy it from /etc/ambari-agent/conf/logging.conf.sample
Ambari agent specific changed need to be done on all cluster node

How do I revert to original installation of Apache2

Okay so a long time ago I was recklessly changing stuff in my Apache2 folder and now I don't know what's wrong and I don't want to take the time to figure it out. I just want to delete folder and then reinstall it with the factory defaults. Is there a way I can do that without doing a complete backup and then reinstalling OSX?
Completely remove all Apache2 packages with purge option.
apt-get remove --purge apache2 apache2-utils
Then install again
apt-get install apache2
I decide to just backup my hard drive and do a clean install of OSX