Software prerequisites

To install ECE, make sure you prepare your environment with the following software. Pay special attention to what Linux kernel and Docker versions you plan to use and follow our recommendations. Our testing has shown that not all software combinations work well together.

Supported Linux kernel

edit

Elastic Cloud Enterprise requires 3.10.0-1160.31.1 or later on RHEL/CentOS.

We recommend using kernel 4.15.x or later on Ubuntu.

To check your kernel version, run uname -r.

Elastic Cloud Enterprise is not supported on Linux distributions that use cgroups version 2.

Linux distributions with compatible Docker versions

edit

ECE requires one of the following Linux distributions, in combination with the compatible Docker version:

Operating system	Docker
Ubuntu 20.04 LTS (Focal Fossa)	20.10
Red Hat Enterprise Linux 7 (RHEL 7)	20.10
Red Hat Enterprise Linux 8 (RHEL 8)	20.10
CentOS 7	20.10
CentOS 8	20.10
SUSE Linux Enterprise Server (SLES) 12 SP5	docker-19.03.14_ce

Check your operating system:
```
cat /etc/os-release
```
Check whether Docker is installed and its version is compatible with ECE:
```
docker --version
```

Elastic Cloud Enterprise does not support Amazon Linux.

Free RAM

edit

ECE requires at least 8GB of free RAM. Check how much free memory you have:

free -h

XFS

edit

XFS is required if you want to use disk space quotas for Elasticsearch data directories.

Disk space quotas set a limit on the amount of disk space an Elasticsearch cluster node can use. Currently, quotas are calculated by a static ratio of 1:32, which means that for every 1 GB of RAM a cluster is given, a cluster node is allowed to consume 32 GB of disk space.

You must use XFS and have quotas enabled on all allocators, otherwise disk usage won’t display correctly.

On RHEL and CentOS, XFS file systems must be created with the -n ftype=1 option to make sure they can work with the OverlayFS storage driver used by Docker.

« Hardware prerequisites System configuration »