在 CentOS 7.1 上安装分布式存储系统 Ceph
2015年07月31日 | 标签: ceph, storage | 作者：vpsee
关于 Ceph 的介绍网上一大堆，这里就不重复了。Sage Weil 读博士的时候开发了这套牛逼的分布式存储系统，最初是奔着高性能分布式文件系统去的，结果云计算风口一来，Ceph 重心转向了分布式块存储（Block Storage）和分布式对象存储（Object Storage），现在分布式文件系统 CephFS 还停在 beta 阶段。Ceph 现在是云计算、虚拟机部署的最火开源存储解决方案，据说有20%的 OpenStack 部署存储用的都是 Ceph 的 block storage.
Ceph 提供3种存储方式：对象存储，块存储和文件系统，下图很好的展示了 Ceph 存储集群的架构：
我们主要关心的是块存储，将在下半年慢慢把虚拟机后端存储从 SAN 过渡到 Ceph. 虽然还是 0.94 版本，Ceph 现在已经比较成熟了，有个同事已经在生产环境里运行 Ceph 了两年多，他曾遇到很多问题，但最终还是解决了，可见 Ceph 还是非常稳定和可靠的。
硬件环境准备
准备了6台机器，其中3台物理服务器做监控节点（mon: ceph-mon1, ceph-mon2, ceph-mon3），2台物理服务器做存储节点（osd: ceph-osd1, ceph-osd2），1台虚拟机做管理节点（adm: ceph-adm）。
Ceph 要求必须是奇数个监控节点，而且最少3个（自己玩玩的话，1个也是可以的），ceph-adm 是可选的，可以把 ceph-adm 放在 monitor 上，只不过把 ceph-adm 单独拿出来架构上看更清晰一些。当然也可以把 mon 放在 osd 上，生产环境下是不推荐这样做的。
- ADM 服务器硬件配置比较随意，用1台低配置的虚拟机就可以了，只是用来操作和管理 Ceph；
- MON 服务器2块硬盘做成 RAID1，用来安装操作系统；
- OSD 服务器上用10块 4TB 硬盘做 Ceph 存储，每个 osd 对应1块硬盘，每个 osd 需要1个 Journal，所以10块硬盘需要10个 Journal，我们用2块大容量 SSD 硬盘做 journal，每个 SSD 等分成5个区，这样每个区分别对应一个 osd 硬盘的 journal，剩下的2块小容量 SSD 装操作系统，采用 RAID1.
配置列表如下：
| Hostname | IP Address | Role | Hardware Info | |-----------+---------------+-------|---------------------------------------------------------| | ceph-adm | 192.168.2.100 | adm | 2 Cores, 4GB RAM, 20GB DISK | | ceph-mon1 | 192.168.2.101 | mon | 24 Cores，64GB RAM, 2x750GB SAS | | ceph-mon2 | 192.168.2.102 | mon | 24 Cores，64GB RAM, 2x750GB SAS | | ceph-mon3 | 192.168.2.103 | mon | 24 Cores，64GB RAM, 2x750GB SAS | | ceph-osd1 | 192.168.2.121 | osd | 12 Cores，64GB RAM, 10x4TB SAS，2x400GB SSD，2x80GB SSD | | ceph-osd2 | 192.168.2.122 | osd | 12 Cores，64GB RAM, 10x4TB SAS，2x400GB SSD，2x80GB SSD |
软件环境准备
所有 Ceph 集群节点采用 CentOS 7.1 版本（CentOS-7-x86_64-Minimal-1503-01.iso），所有文件系统采用 Ceph 官方推荐的 xfs，所有节点的操作系统都装在 RAID1 上，其他的硬盘单独用，不做任何 RAID.
安装完 CentOS 后我们需要在每个节点上（包括 ceph-adm 哦）做一点基本配置，比如关闭 SELINUX、打开防火墙端口、同步时间等：
关闭 SELINUX # sed -i 's/SELINUX=enforcing/SELINUX=disabled/g' /etc/selinux/config # setenforce 0 打开 Ceph 需要的端口 # firewall-cmd --zone=public --add-port=6789/tcp --permanent # firewall-cmd --zone=public --add-port=6800-7100/tcp --permanent # firewall-cmd --reload 安装 EPEL 软件源： # rpm -Uvh https://dl.fedoraproject.org/pub/epel/7/x86_64/e/epel-release-7-5.noarch.rpm # yum -y update # yum -y upgrade 安装 ntp 同步时间 # yum -y install ntp ntpdate ntp-doc # ntpdate 0.us.pool.ntp.org # hwclock --systohc # systemctl enable ntpd.service # systemctl start ntpd.service
在每台 osd 服务器上我们需要对10块 SAS 硬盘分区、创建 xfs 文件系统；对2块用做 journal 的 SSD 硬盘分5个区，每个区对应一块硬盘，不需要创建文件系统，留给 Ceph 自己处理。
# parted /dev/sda
GNU Parted 3.1
Using /dev/sda
Welcome to GNU Parted! Type 'help' to view a list of commands.
(parted) mklabel gpt
(parted) mkpart primary xfs 0% 100%
(parted) quit
# mkfs.xfs /dev/sda1
meta-data=/dev/sda1 isize=256 agcount=4, agsize=244188544 blks
= sectsz=4096 attr=2, projid32bit=1
= crc=0 finobt=0
data = bsize=4096 blocks=976754176, imaxpct=5
= sunit=0 swidth=0 blks
naming =version 2 bsize=4096 ascii-ci=0 ftype=0
log =internal log bsize=4096 blocks=476930, version=2
= sectsz=4096 sunit=1 blks, lazy-count=1
realtime =none extsz=4096 blocks=0, rtextents=0
...
上面的命令行要对10个硬盘处理，重复的操作太多，以后还会陆续增加服务器，写成脚本 parted.sh 方便操作，其中 /dev/sda|b|d|e|g|h|i|j|k|l 分别是10块硬盘，/dev/sdc 和 /dev/sdf 是用做 journal 的 SSD：
# vi parted.sh
#!/bin/bash
set -e
if [ ! -x "/sbin/parted" ]; then
echo "This script requires /sbin/parted to run!" >&2
exit 1
fi
DISKS="a b d e g h i j k l"
for i in ${DISKS}; do
echo "Creating partitions on /dev/sd${i} ..."
parted -a optimal --script /dev/sd${i} -- mktable gpt
parted -a optimal --script /dev/sd${i} -- mkpart primary xfs 0% 100%
sleep 1
#echo "Formatting /dev/sd${i}1 ..."
mkfs.xfs -f /dev/sd${i}1 &
done
SSDS="c f"
for i in ${SSDS}; do
parted -s /dev/sd${i} mklabel gpt
parted -s /dev/sd${i} mkpart primary 0% 20%
parted -s /dev/sd${i} mkpart primary 21% 40%
parted -s /dev/sd${i} mkpart primary 41% 60%
parted -s /dev/sd${i} mkpart primary 61% 80%
parted -s /dev/sd${i} mkpart primary 81% 100%
done
# sh parted.sh
在 ceph-adm 上运行 ssh-keygen 生成 ssh key 文件，注意 passphrase 是空，把 ssh key 拷贝到每一个 Ceph 节点上：
# ssh-keygen -t rsa Generating public/private rsa key pair. Enter file in which to save the key (/root/.ssh/id_rsa): Enter passphrase (empty for no passphrase): Enter same passphrase again: # ssh-copy-id root@ceph-mon1 # ssh-copy-id root@ceph-mon2 # ssh-copy-id root@ceph-mon3 # ssh-copy-id root@ceph-osd1 # ssh-copy-id root@ceph-osd2
在 ceph-adm 上登陆到每台节点上确认是否都能无密码 ssh 了，确保那个烦人的连接确认不会再出现：
# ssh root@ceph-mon1 The authenticity of host 'ceph-mon1 (192.168.2.101)' can't be established. ECDSA key fingerprint is d7:db:d6:70:ef:2e:56:7c:0d:9c:62:75:b2:47:34:df. Are you sure you want to continue connecting (yes/no)? yes # ssh root@ceph-mon2 # ssh root@ceph-mon3 # ssh root@ceph-osd1 # ssh root@ceph-osd2
Ceph 部署
比起在每个 Ceph 节点上手动安装 Ceph，用 ceph-deploy 工具统一安装要方便得多：
# rpm -Uvh http://ceph.com/rpm-hammer/el7/noarch/ceph-release-1-1.el7.noarch.rpm # yum update -y # yum install ceph-deploy -y
创建一个 ceph 工作目录，以后的操作都在这个目录下面进行：
# mkdir ~/ceph-cluster # cd ~/ceph-cluster
初始化集群，告诉 ceph-deploy 哪些节点是监控节点，命令成功执行后会在 ceph-cluster 目录下生成 ceph.conf, ceph.log, ceph.mon.keyring 等相关文件：
# ceph-deploy new ceph-mon1 ceph-mon2 ceph-mon3
在每个 Ceph 节点上都安装 Ceph：
# ceph-deploy install ceph-adm ceph-mon1 ceph-mon2 ceph-mon3 ceph-osd1 ceph-osd2
初始化监控节点：
# ceph-deploy mon create-initial
查看一下 Ceph 存储节点的硬盘情况：
# ceph-deploy disk list ceph-osd1 # ceph-deploy disk list ceph-osd2
初始化 Ceph 硬盘，然后创建 osd 存储节点，存储节点:单个硬盘:对应的 journal 分区，一一对应：
创建 ceph-osd1 存储节点 # ceph-deploy disk zap ceph-osd1:sda ceph-osd1:sdb ceph-osd1:sdd ceph-osd1:sde ceph-osd1:sdg ceph-osd1:sdh ceph-osd1:sdi ceph-osd1:sdj ceph-osd1:sdk ceph-osd1:sdl # ceph-deploy osd create ceph-osd1:sda:/dev/sdc1 ceph-osd1:sdb:/dev/sdc2 ceph-osd1:sdd:/dev/sdc3 ceph-osd1:sde:/dev/sdc4 ceph-osd1:sdg:/dev/sdc5 ceph-osd1:sdh:/dev/sdf1 ceph-osd1:sdi:/dev/sdf2 ceph-osd1:sdj:/dev/sdf3 ceph-osd1:sdk:/dev/sdf4 ceph-osd1:sdl:/dev/sdf5 创建 ceph-osd2 存储节点 # ceph-deploy disk zap ceph-osd2:sda ceph-osd2:sdb ceph-osd2:sdd ceph-osd2:sde ceph-osd2:sdg ceph-osd2:sdh ceph-osd2:sdi ceph-osd2:sdj ceph-osd2:sdk ceph-osd2:sdl # ceph-deploy osd create ceph-osd2:sda:/dev/sdc1 ceph-osd2:sdb:/dev/sdc2 ceph-osd2:sdd:/dev/sdc3 ceph-osd2:sde:/dev/sdc4 ceph-osd2:sdg:/dev/sdc5 ceph-osd2:sdh:/dev/sdf1 ceph-osd2:sdi:/dev/sdf2 ceph-osd2:sdj:/dev/sdf3 ceph-osd2:sdk:/dev/sdf4 ceph-osd2:sdl:/dev/sdf5
最后，我们把生成的配置文件从 ceph-adm 同步部署到其他几个节点，使得每个节点的 ceph 配置一致：
# ceph-deploy --overwrite-conf admin ceph-adm ceph-mon1 ceph-mon2 ceph-mon3 ceph-osd1 ceph-osd2
测试
看一下配置成功了没？
# ceph health HEALTH_WARN too few PGs per OSD (10 < min 30)
增加 PG 数目，根据 Total PGs = (#OSDs * 100) / pool size 公式来决定 pg_num（pgp_num 应该设成和 pg_num 一样），所以 20*100/2=1000，Ceph 官方推荐取最接近2的指数倍，所以选择 1024。如果顺利的话，就应该可以看到 HEALTH_OK 了：
# ceph osd pool set rbd size 2 set pool 0 size to 2 # ceph osd pool set rbd min_size 2 set pool 0 min_size to 2 # ceph osd pool set rbd pg_num 1024 set pool 0 pg_num to 1024 # ceph osd pool set rbd pgp_num 1024 set pool 0 pgp_num to 1024 # ceph health HEALTH_OK
更详细一点：
# ceph -s
cluster 6349efff-764a-45ec-bfe9-ed8f5fa25186
health HEALTH_OK
monmap e1: 3 mons at {ceph-mon1=192.168.2.101:6789/0,ceph-mon2=192.168.2.102:6789/0,ceph-mon3=192.168.2.103:6789/0}
election epoch 6, quorum 0,1,2 ceph-mon1,ceph-mon2,ceph-mon3
osdmap e107: 20 osds: 20 up, 20 in
pgmap v255: 1024 pgs, 1 pools, 0 bytes data, 0 objects
740 MB used, 74483 GB / 74484 GB avail
1024 active+clean
如果操作没有问题的话记得把上面操作写到 ceph.conf 文件里，并同步部署的各节点：
# vi ceph.conf [global] fsid = 6349efff-764a-45ec-bfe9-ed8f5fa25186 mon_initial_members = ceph-mon1, ceph-mon2, ceph-mon3 mon_host = 192.168.2.101,192.168.2.102,192.168.2.103 auth_cluster_required = cephx auth_service_required = cephx auth_client_required = cephx filestore_xattr_use_omap = true osd pool default size = 2 osd pool default min size = 2 osd pool default pg num = 1024 osd pool default pgp num = 1024 # ceph-deploy admin ceph-adm ceph-mon1 ceph-mon2 ceph-mon3 ceph-osd1 ceph-osd2
如果一切可以从来
部署过程中如果出现任何奇怪的问题无法解决，可以简单的删除一切从头再来：
# ceph-deploy purge ceph-mon1 ceph-mon2 ceph-mon3 ceph-osd1 ceph-osd2 # ceph-deploy purgedata ceph-mon1 ceph-mon2 ceph-mon3 ceph-osd1 ceph-osd2 # ceph-deploy forgetkeys
Troubleshooting
如果出现任何网络问题，首先确认节点可以互相无密码 ssh，各个节点的防火墙已关闭或加入规则：
# ceph health 2015-07-31 14:31:10.545138 7fce64377700 0 -- :/1024052 >> 192.168.2.101:6789/0 pipe(0x7fce60027050 sd=3 :0 s=1 pgs=0 cs=0 l=1 c=0x7fce60023e00).fault HEALTH_OK # ssh ceph-mon1 # firewall-cmd --zone=public --add-port=6789/tcp --permanent # firewall-cmd --zone=public --add-port=6800-7100/tcp --permanent # firewall-cmd --reload # ceph health HEALTH_OK
初次安装 Ceph 会遇到各种各样的问题，总体来说排错还算顺利，随着经验的积累，今年下半年将会逐步把 Ceph 加入到生产环境。
Ceph中国社区QQ群：239404559，谢谢加入。
博主请教一个问题，你之前介绍的freebsd下安装fnmp的环境里面，是如何安装好mysql的php扩展的啊。。。。小白被这个困扰了一天了。
# yum install ceps-deploy -y
这句写错了
[root@mds ceph-cluster]# ceph-deploy osd create osd:xvdb:/dev/xvdb1 osd:xvdc:/dev/xvdc1
[ceph_deploy.conf][DEBUG ] found configuration file at: /root/.cephdeploy.conf
[ceph_deploy.cli][INFO ] Invoked (1.5.28): /usr/bin/ceph-deploy osd create osd:xvdb:/dev/xvdb1 osd:xvdc:/dev/xvdc1
[ceph_deploy.cli][INFO ] ceph-deploy options:
[ceph_deploy.cli][INFO ] username : None
[ceph_deploy.cli][INFO ] disk : [(‘osd’, ‘/dev/xvdb’, ‘/dev/xvdb1’), (‘osd’, ‘/dev/xvdc’, ‘/dev/xvdc1’)]
[ceph_deploy.cli][INFO ] dmcrypt : False
[ceph_deploy.cli][INFO ] verbose : False
[ceph_deploy.cli][INFO ] overwrite_conf : False
[ceph_deploy.cli][INFO ] subcommand : create
[ceph_deploy.cli][INFO ] dmcrypt_key_dir : /etc/ceph/dmcrypt-keys
[ceph_deploy.cli][INFO ] quiet : False
[ceph_deploy.cli][INFO ] cd_conf :
[ceph_deploy.cli][INFO ] cluster : ceph
[ceph_deploy.cli][INFO ] fs_type : xfs
[ceph_deploy.cli][INFO ] func :
[ceph_deploy.cli][INFO ] ceph_conf : None
[ceph_deploy.cli][INFO ] default_release : False
[ceph_deploy.cli][INFO ] zap_disk : False
[ceph_deploy.osd][DEBUG ] Preparing cluster ceph disks osd:/dev/xvdb:/dev/xvdb1 osd:/dev/xvdc:/dev/xvdc1
[osd][DEBUG ] connected to host: osd
[osd][DEBUG ] detect platform information from remote host
[osd][DEBUG ] detect machine type
[osd][DEBUG ] find the location of an executable
[ceph_deploy.osd][INFO ] Distro info: CentOS Linux 7.1.1503 Core
[ceph_deploy.osd][DEBUG ] Deploying osd to osd
[osd][DEBUG ] write cluster configuration to /etc/ceph/{cluster}.conf
[osd][INFO ] Running command: udevadm trigger –subsystem-match=block –action=add
[ceph_deploy.osd][DEBUG ] Preparing host osd disk /dev/xvdb journal /dev/xvdb1 activate True
[osd][INFO ] Running command: ceph-disk -v prepare –cluster ceph –fs-type xfs — /dev/xvdb /dev/xvdb1
[osd][WARNIN] INFO:ceph-disk:Running command: /usr/bin/ceph-osd –cluster=ceph –show-config-value=fsid
[osd][WARNIN] INFO:ceph-disk:Running command: /usr/bin/ceph-conf –cluster=ceph –name=osd. –lookup osd_mkfs_options_xfs
[osd][WARNIN] INFO:ceph-disk:Running command: /usr/bin/ceph-conf –cluster=ceph –name=osd. –lookup osd_fs_mkfs_options_xfs
[osd][WARNIN] INFO:ceph-disk:Running command: /usr/bin/ceph-conf –cluster=ceph –name=osd. –lookup osd_mount_options_xfs
[osd][WARNIN] INFO:ceph-disk:Running command: /usr/bin/ceph-conf –cluster=ceph –name=osd. –lookup osd_fs_mount_options_xfs
[osd][WARNIN] INFO:ceph-disk:Running command: /usr/bin/ceph-osd –cluster=ceph –show-config-value=osd_journal_size
[osd][WARNIN] INFO:ceph-disk:Running command: /usr/bin/ceph-conf –cluster=ceph –name=osd. –lookup osd_cryptsetup_parameters
[osd][WARNIN] INFO:ceph-disk:Running command: /usr/bin/ceph-conf –cluster=ceph –name=osd. –lookup osd_dmcrypt_key_size
[osd][WARNIN] INFO:ceph-disk:Running command: /usr/bin/ceph-conf –cluster=ceph –name=osd. –lookup osd_dmcrypt_type
[osd][WARNIN] DEBUG:ceph-disk:Creating journal file /dev/xvdb1 with size 0 (ceph-osd will resize and allocate)
[osd][WARNIN] DEBUG:ceph-disk:Journal is file /dev/xvdb1
[osd][WARNIN] WARNING:ceph-disk:OSD will not be hot-swappable if journal is not the same device as the osd data
[osd][WARNIN] DEBUG:ceph-disk:Creating osd partition on /dev/xvdb
[osd][WARNIN] INFO:ceph-disk:Running command: /usr/sbin/sgdisk –largest-new=1 –change-name=1:ceph data –partition-guid=1:25963e2b-1d1e-4a5a-82d8-a16c1d47d5a0 –typecode=1:89c57f98-2fe5-4dc0-89c1-f3ad0ceff2be — /dev/xvdb
[osd][DEBUG ] The operation has completed successfully.
[osd][WARNIN] INFO:ceph-disk:calling partx on created device /dev/xvdb
[osd][WARNIN] INFO:ceph-disk:re-reading known partitions will display errors
[osd][WARNIN] INFO:ceph-disk:Running command: /usr/sbin/partx -a /dev/xvdb
[osd][WARNIN] partx: /dev/xvdb: error adding partition 1
[osd][WARNIN] INFO:ceph-disk:Running command: /usr/bin/udevadm settle
[osd][WARNIN] DEBUG:ceph-disk:Creating xfs fs on /dev/xvdb1
[osd][WARNIN] INFO:ceph-disk:Running command: /usr/sbin/mkfs -t xfs -f -i size=2048 — /dev/xvdb1
[osd][WARNIN] can’t get size of data subvolume
[osd][WARNIN] Usage: mkfs.xfs
[osd][WARNIN] /* blocksize */ [-b log=n|size=num]
[osd][WARNIN] /* metadata */ [-m crc=0|1,finobt=0|1]
[osd][WARNIN] /* data subvol */ [-d agcount=n,agsize=n,file,name=xxx,size=num,
[osd][WARNIN] (sunit=value,swidth=value|su=num,sw=num|noalign),
[osd][WARNIN] sectlog=n|sectsize=num
[osd][WARNIN] /* force overwrite */ [-f]
[osd][WARNIN] /* inode size */ [-i log=n|perblock=n|size=num,maxpct=n,attr=0|1|2,
[osd][WARNIN] projid32bit=0|1]
[osd][WARNIN] /* no discard */ [-K]
[osd][WARNIN] /* log subvol */ [-l agnum=n,internal,size=num,logdev=xxx,version=n
[osd][WARNIN] sunit=value|su=num,sectlog=n|sectsize=num,
[osd][WARNIN] lazy-count=0|1]
[osd][WARNIN] /* label */ [-L label (maximum 12 characters)]
[osd][WARNIN] /* naming */ [-n log=n|size=num,version=2|ci,ftype=0|1]
[osd][WARNIN] /* no-op info only */ [-N]
[osd][WARNIN] /* prototype file */ [-p fname]
[osd][WARNIN] /* quiet */ [-q]
[osd][WARNIN] /* realtime subvol */ [-r extsize=num,size=num,rtdev=xxx]
[osd][WARNIN] /* sectorsize */ [-s log=n|size=num]
[osd][WARNIN] /* version */ [-V]
[osd][WARNIN] devicename
[osd][WARNIN] is required unless -d name=xxx is given.
[osd][WARNIN] is xxx (bytes), xxxs (sectors), xxxb (fs blocks), xxxk (xxx KiB),
[osd][WARNIN] xxxm (xxx MiB), xxxg (xxx GiB), xxxt (xxx TiB) or xxxp (xxx PiB).
[osd][WARNIN] is xxx (512 byte blocks).
[osd][WARNIN] ceph-disk: Error: Command ‘[‘/usr/sbin/mkfs’, ‘-t’, ‘xfs’, ‘-f’, ‘-i’, ‘size=2048’, ‘–‘, ‘/dev/xvdb1′]’ returned non-zero exit status 1
[osd][ERROR ] RuntimeError: command returned non-zero exit status: 1
[ceph_deploy.osd][ERROR ] Failed to execute command: ceph-disk -v prepare –cluster ceph –fs-type xfs — /dev/xvdb /dev/xvdb1
[osd][DEBUG ] connected to host: osd
[osd][DEBUG ] detect platform information from remote host
[osd][DEBUG ] detect machine type
[osd][DEBUG ] find the location of an executable
[ceph_deploy.osd][INFO ] Distro info: CentOS Linux 7.1.1503 Core
[ceph_deploy.osd][DEBUG ] Preparing host osd disk /dev/xvdc journal /dev/xvdc1 activate True
[osd][INFO ] Running command: ceph-disk -v prepare –cluster ceph –fs-type xfs — /dev/xvdc /dev/xvdc1
[osd][WARNIN] INFO:ceph-disk:Running command: /usr/bin/ceph-osd –cluster=ceph –show-config-value=fsid
[osd][WARNIN] INFO:ceph-disk:Running command: /usr/bin/ceph-conf –cluster=ceph –name=osd. –lookup osd_mkfs_options_xfs
[osd][WARNIN] INFO:ceph-disk:Running command: /usr/bin/ceph-conf –cluster=ceph –name=osd. –lookup osd_fs_mkfs_options_xfs
[osd][WARNIN] INFO:ceph-disk:Running command: /usr/bin/ceph-conf –cluster=ceph –name=osd. –lookup osd_mount_options_xfs
[osd][WARNIN] INFO:ceph-disk:Running command: /usr/bin/ceph-conf –cluster=ceph –name=osd. –lookup osd_fs_mount_options_xfs
[osd][WARNIN] INFO:ceph-disk:Running command: /usr/bin/ceph-osd –cluster=ceph –show-config-value=osd_journal_size
[osd][WARNIN] INFO:ceph-disk:Running command: /usr/bin/ceph-conf –cluster=ceph –name=osd. –lookup osd_cryptsetup_parameters
[osd][WARNIN] INFO:ceph-disk:Running command: /usr/bin/ceph-conf –cluster=ceph –name=osd. –lookup osd_dmcrypt_key_size
[osd][WARNIN] INFO:ceph-disk:Running command: /usr/bin/ceph-conf –cluster=ceph –name=osd. –lookup osd_dmcrypt_type
[osd][WARNIN] DEBUG:ceph-disk:Creating journal file /dev/xvdc1 with size 0 (ceph-osd will resize and allocate)
[osd][WARNIN] DEBUG:ceph-disk:Journal is file /dev/xvdc1
[osd][WARNIN] WARNING:ceph-disk:OSD will not be hot-swappable if journal is not the same device as the osd data
[osd][WARNIN] DEBUG:ceph-disk:Creating osd partition on /dev/xvdc
[osd][WARNIN] INFO:ceph-disk:Running command: /usr/sbin/sgdisk –largest-new=1 –change-name=1:ceph data –partition-guid=1:84977df7-6e61-4379-8736-7e958060476e –typecode=1:89c57f98-2fe5-4dc0-89c1-f3ad0ceff2be — /dev/xvdc
[osd][DEBUG ] The operation has completed successfully.
[osd][WARNIN] INFO:ceph-disk:calling partx on created device /dev/xvdc
[osd][WARNIN] INFO:ceph-disk:re-reading known partitions will display errors
[osd][WARNIN] INFO:ceph-disk:Running command: /usr/sbin/partx -a /dev/xvdc
[osd][WARNIN] partx: /dev/xvdc: error adding partition 1
[osd][WARNIN] INFO:ceph-disk:Running command: /usr/bin/udevadm settle
[osd][WARNIN] DEBUG:ceph-disk:Creating xfs fs on /dev/xvdc1
[osd][WARNIN] INFO:ceph-disk:Running command: /usr/sbin/mkfs -t xfs -f -i size=2048 — /dev/xvdc1
[osd][WARNIN] can’t get size of data subvolume
[osd][WARNIN] Usage: mkfs.xfs
[osd][WARNIN] /* blocksize */ [-b log=n|size=num]
[osd][WARNIN] /* metadata */ [-m crc=0|1,finobt=0|1]
[osd][WARNIN] /* data subvol */ [-d agcount=n,agsize=n,file,name=xxx,size=num,
[osd][WARNIN] (sunit=value,swidth=value|su=num,sw=num|noalign),
[osd][WARNIN] sectlog=n|sectsize=num
[osd][WARNIN] /* force overwrite */ [-f]
[osd][WARNIN] /* inode size */ [-i log=n|perblock=n|size=num,maxpct=n,attr=0|1|2,
[osd][WARNIN] projid32bit=0|1]
[osd][WARNIN] /* no discard */ [-K]
[osd][WARNIN] /* log subvol */ [-l agnum=n,internal,size=num,logdev=xxx,version=n
[osd][WARNIN] sunit=value|su=num,sectlog=n|sectsize=num,
[osd][WARNIN] lazy-count=0|1]
[osd][WARNIN] /* label */ [-L label (maximum 12 characters)]
[osd][WARNIN] /* naming */ [-n log=n|size=num,version=2|ci,ftype=0|1]
[osd][WARNIN] /* no-op info only */ [-N]
[osd][WARNIN] /* prototype file */ [-p fname]
[osd][WARNIN] /* quiet */ [-q]
[osd][WARNIN] /* realtime subvol */ [-r extsize=num,size=num,rtdev=xxx]
[osd][WARNIN] /* sectorsize */ [-s log=n|size=num]
[osd][WARNIN] /* version */ [-V]
[osd][WARNIN] devicename
[osd][WARNIN] is required unless -d name=xxx is given.
[osd][WARNIN] is xxx (bytes), xxxs (sectors), xxxb (fs blocks), xxxk (xxx KiB),
[osd][WARNIN] xxxm (xxx MiB), xxxg (xxx GiB), xxxt (xxx TiB) or xxxp (xxx PiB).
[osd][WARNIN] is xxx (512 byte blocks).
[osd][WARNIN] ceph-disk: Error: Command ‘[‘/usr/sbin/mkfs’, ‘-t’, ‘xfs’, ‘-f’, ‘-i’, ‘size=2048’, ‘–‘, ‘/dev/xvdc1′]’ returned non-zero exit status 1
[osd][ERROR ] RuntimeError: command returned non-zero exit status: 1
[ceph_deploy.osd][ERROR ] Failed to execute command: ceph-disk -v prepare –cluster ceph –fs-type xfs — /dev/xvdc /dev/xvdc1
[ceph_deploy][ERROR ] GenericError: Failed to create 2 OSDs
你好，我在执行创建存储节点时候，出现以上错误，不知道什么原因？