Error: No stonith agents available. Do you have fence agents installed? (fence_aws aws_fence)

[edgarbrignoni]

I install fence_aws (aws_fence) on both ec2-instances...previous to that I manage to setup two nodes clusters using EBS multi-attach setup, but before creating the GFS2 volume, I need to setup a fence. Since it is AWS, I install the latest fence-agents-aws, but when trying to setup fencing, I get the error.

sudo yum install fence-agents-aws.x86_64 -y

Package fence-agents-aws-4.2.1-24.amzn2.0.3.x86_64 already installed and latest version Nothing to do

sudo pcs stonith list

Error: No stonith agents available. Do you have fence agents installed?

Can someone assist?

Kind Regards,

Edgar Brignoni

[oalbrigt]

This sounds like the agent might be installed in non-standard location. pcs stonith list usually looks for fence_* in /usr/sbin/.

Try running rpm -ql fence-agents-aws and see where it's located. You can also try running it manually fence_aws -o metadata to see if there's any errors or it outputs metadata like it should.

You should report it to the distro you're running, so they can fix it.

[edgarbrignoni]

Thanks @oalbrigt for your support on this issue. You were able to guide me in the right direction. Here are some of the results after running the commands.

[ec2-user@ma-host-1 html]$ rpm -ql fence-agents-aws
/usr/sbin/fence_aws
/usr/share/man/man8/fence_aws.8.gz
[ec2-user@ma-host-1 html]$ fence_aws -o metadata
Traceback (most recent call last):
  File "/usr/sbin/fence_aws", line 10, in <module>
    import boto3
ImportError: No module named boto3

I then proceeded to install boto3 on the Amazon Linux 2 instances, but first I needed pip.

sudo yum -y install python-pip
...
sudo pip install boto3
...
[root@ma-host-2 /]# sudo pcs stonith list
fence_aws - Fence agent for AWS (Amazon Web Services)

I try using python3.X to install boto3 with pip3 install boto3 but unfortunately that did not work. Still, I was able to do what I needed to do, then I worry about using pip3 since I believe pytho2.X is no longer going to be supported.

Thanks again,

Edgar Brignoni

Just wanted to add the reason why I wanted this working.

https://github.com/aws-samples/clustered-storage-gfs2

[oalbrigt]

It might be available as python3-boto3, but it's a bit strange that it doesnt depend on it.