CentOS 7 x64 Installing Ceph

CentOS 7 x64 Installing Ceph

Second, the experimental environment

Node IP host Name System

MON 172.24.0.13 ceph-mon0 CentOS 7 X64

MDS 172.24.0.13 ceph-mds0 CentOS 7 X64

OSD0 172.24.0.14 ceph-osd0 CentOS 7 X64

OSD1 172.24.0.14 CEPH-OSD1 CentOS 7 X64

Client

Third, installation steps

1, first establish the Machine SSH trust relationship

Generate key

Ssh-keygen-t Rsa-p '

Ssh-keygen-t rsa-f. Ssh/id_rsa-p "

Copy to an authorized host

Ssh-copy-id-i. ssh/id_rsa.pub [email protected] Host

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Ssh-copy-id-i. ssh/id_rsa.pub [Email protected]

Ssh-copy-id-i. ssh/id_rsa.pub [Email protected]

--------------------------------------------------------

Configure all host time synchronization

Installing Ntpdate

Yum-y Install Ntpdate

Start Sync Time

Ntpdate time.windows.com

Modify the host name (hostname) for each machine (Mon,mds,osd,client must be set)

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echo 172.24.0.13 ceph-mon0 >>/etc/hosts

echo 172.24.0.13 ceph-mds0 >>/etc/hosts

echo 172.24.0.14 ceph-osd0 >>/etc/hosts

echo 172.24.0.14 CEPH-OSD1 >>/etc/hosts

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Yum update, installing dependent packages (for MON,MDS,OSD)

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RPM--import ' Https://ceph.com/git/?p=ceph.git;a=blob_plain;f=keys/release.asc '

RPM-UVH http://mirrors.yun-idc.com/epel/7/x86_64/e/epel-release-7-5.noarch.rpm

Yum Install snappy leveldb gdisk python-argparse gperftools-libs-y

RPM-UVH http://ceph.com/rpm-dumpling/el7/noarch/ceph-release-1-0.el7.centos.noarch.rpm

Yum Install Ceph-deploy-y

Yum Install Ceph-y

Yum Install Btrfs-progs (for all OSD)

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Configuration/etc/ceph/ceph.conf, (for MON,MDS,OSD)

Vi/etc/ceph/ceph.conf

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[Global]

Public network = 172.24.0.0/24

PID file =/var/run/ceph/$name. pid

Auth Cluster required = None

Auth service required = None

Auth Client required = None

Keyring =/etc/ceph/keyring. $name

OSD Pool Default size = 1

OSD Pool default min size = 1

OSD Pool default Crush rule = 0

OSD Crush Chooseleaf type = 1

[Mon]

Mon data =/var/lib/ceph/mon/$name

Mon clock Drift allowed =. 15

Keyring =/etc/ceph/keyring. $name

[mon.0]

Host = Ceph-mon0

Mon addr = 172.24.0.13:6789

[MDS]

Keyring =/etc/ceph/keyring. $name

[mds.0]

Host = Ceph-mds0

[OSD]

OSD data =/mnt/osd$id

OSD Recovery Max active = 5

OSD MKFS type = XFS

OSD Journal =/mnt/osd$id/journal

OSD Journal size = 1000

Keyring =/etc/ceph/keyring. $name

[osd.0]

Host = Ceph-osd0

Devs =/dev/mapper/centos-osd0

[Osd.1]

Host = CEPH-OSD1

Devs =/DEV/MAPPER/CENTOS-OSD1

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Create directory (OSD)

Mkdir/mnt/osd0

Mkdir/mnt/osd1

Start Ceph (executed on Mon)

Initialization

Mkcephfs-a-c/etc/ceph/ceph.conf

/etc/init.d/ceph-a start

(#遇到 Error enoent:osd.0 does not exist. Create it before updating the crush map) executes the following code:

Ceph OSD Create

And then in the execution/etc/init.d/ceph-a start can both be completed

Perform a health check

Ceph Health #也可以使用ceph-S command to view the status (if HEALTH_OK is returned, it is successful!) )

Mount Ceph (172.24.0.15 for client)

Mon recommended there are at least 3, if hung off one, the service can also be used normally

Client0 CentOS7 Default does not open CEPH_FS kernel, need to change the kernel, here directly with Yum Update (can be compiled manually)

Using the Elrepo provided, the already compiled kernel

RPM--import https://www.elrepo.org/RPM-GPG-KEY-elrepo.org

RPM-UVH http://www.elrepo.org/elrepo-release-7.0-2.el7.elrepo.noarch.rpm

Yum Install-y Yum-plugin-fastestmirror

Yum--enablerepo=elrepo-kernel Install kernel-ml kernel-ml-devel

Grub2-set-default 0

Reboot restarting the server

Mkdir/opt/ceph

1. Ceph-fuse-m 172.24.0.13:6789/opt/ceph

2. Mount-t Ceph 172.24.0.13:6789//opt/ceph

#这里的密钥, is the content in Mon/etc/ceph/keyring.client.admin.

Multiple Mon can be used, separate numbers such as: Ceph-fuse-m 172.24.0.13:6789,172.24.0.14:6789,172.24.0.15:6789/opt/ceph

CentOS 7 x64 Installing Ceph