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This article mainly explains "the method of building ceph cluster". The content of the article is simple and clear, and it is easy to learn and understand. Please follow the editor's train of thought to study and learn "the method of building ceph cluster".

1. Add epel-release extension source

Yum install-- nogpgcheck-y epel-release

Rpm--import / etc/pki/rpm-gpg/RPM-GPG-KEY-EPEL-7

two。 Add ceph Feed

Vi / etc/yum.repos.d/ceph.repo

[Ceph]

Name=Ceph packages for $basearch

Baseurl= http://mirrors.aliyun.com/ceph/rpm-jewel/el7/$basearch

Enabled=1

Gpgcheck=1

Type=rpm-md

Gpgkey= https://mirrors.aliyun.com/ceph/keys/release.asc

Priority=1

[Ceph-noarch]

Name=Ceph noarch packages

Baseurl= http://mirrors.aliyun.com/ceph/rpm-jewel/el7/noarch

Enabled=1

Gpgcheck=1

Type=rpm-md

Gpgkey= https://mirrors.aliyun.com/ceph/keys/release.asc

Priority=1

[ceph-source]

Name=Ceph source packages

Baseurl= http://mirrors.aliyun.com/ceph/rpm-jewel/el7/SRPMS

Enabled=1

Gpgcheck=1

Type=rpm-md

Gpgkey= https://mirrors.aliyun.com/ceph/keys/release.asc

Priority=1

3. Prepare to install ceph

Update the host library file: yum update-y

Download ceph-deploy:yum install ceph-deploy-y

Download and install the ntp service: yum install ntp ntpdate ntp-doc openssh-server yum-plugin-priorities-y

Modify the / etc/hosts file to add IP- hostname mapping, for example: 192.168.1.111 node1

Create a directory to place the files after ceph installation and enter it into the directory: mkdir my-cluster; cd my-cluster

Create a new cluster using ceph-deploy: ceph-deploy new node1 (finally, hostname)

Modify the ceph.conf configuration file to add the following

Osd pool default size = 3 # create 3 copies

Public_network = 192.168.1.0 Compact 24 # Public Network

Cluster_network = 192.1681.0 Compact 24 # Cluster Network

4.ceph-deploy download and install ceph program: ceph-deploy install node1

5. Divide three equal-sized partitions, all larger than 10GB: example fdisk / dev/sdb

Ceph-deploy mon create-initial

Ceph-deploy admin node1

Chmod + r / etc/ceph/ceph.client.admin.keyring

Ceph-disk prepare-cluster node1-cluster-uuid f453a207-a05c-475b-971d-91ff6c1f6f48-fs-type xfs / dev/sdb1

The remaining two partition commands are the same, only need to modify / dev/sdb*

The above uuid can be viewed using ceph-s, which is the string of characters after the first line cluster, which can be modified in the configuration file.

Ceph-disk activate / dev/sdb1

Ceph osd getcrushmap-o a.map

Crushtool-d a.map-o a

Vi a

Rule replicated_ruleset {

Ruleset 0

Type replicated

Min_size 1

Max_size 10

Step take default

Step chooseleaf firstn 0 type osd # defaults to host and modified to osd

Step emit

Crushtool-c a-o b.map

Ceph osd setcrushmap-I b.map

Ceph osd tree

Ceph-s

Thank you for your reading. the above is the content of "how to build ceph Cluster". After the study of this article, I believe you have a deeper understanding of the method of building ceph cluster, and the specific use needs to be verified in practice. Here is, the editor will push for you more related knowledge points of the article, welcome to follow!

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