Create a cluster node availability check¶

When creating a cluster or adding nodes to an existing cluster, refer to the table below to check the node configuration to avoid cluster creation or expansion failure due to wrong node configuration.

Check Item	Description
OS	Refer to Supported Architectures and Operating Systems
SELinux	Off
Firewall	Off
Architecture Consistency	Consistent CPU architecture between nodes (such as ARM or x86)
Host Time	All hosts are out of sync within 10 seconds.
Network Connectivity	The node and its SSH port can be accessed normally by the platform.
CPU	Available CPU resources are greater than 4 Cores
Memory	Available memory resources are greater than 8 GB

Supported architectures and operating systems¶

Architecture	Operating System	Remarks
ARM	Kylin Linux Advanced Server release V10 (Sword) SP2	Recommended
ARM	UOS Linux
ARM	openEuler
x86	CentOS 7.x	Recommended
x86	Redhat 7.x	Recommended
x86	Redhat 8.x	Recommended
x86	Flatcar Container Linux by Kinvolk
x86	Debian Bullseye, Buster, Jessie, Stretch
x86	Ubuntu 16.04, 18.04, 20.04, 22.04
x86	Fedora 35, 36
x86	Fedora CoreOS
x86	openSUSE Leap 15.x/Tumbleweed
x86	Oracle Linux 7, 8, 9
x86	Alma Linux 8, 9
x86	Rocky Linux 8, 9
x86	Amazon Linux 2
x86	Kylin Linux Advanced Server release V10 (Sword) - SP2 Haiguang
x86	UOS Linux
x86	openEuler