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ceph-crush map区分ssd和hdd资源池

2022-06-05 23:32:19 作者：互联网

环境

3块SSD

6块HDD

# ceph -s
  cluster:
    id:     b4c125fd-60ab-41ce-b51c-88833089a3ad
    health: HEALTH_OK
 
  services:
    mon: 3 daemons, quorum node1,node2,node3 (age 47m)
    mgr: node1(active, since 56m), standbys: node2, node3
    osd: 9 osds: 9 up (since 44m), 9 in (since 44m)
 
  data:
    pools:   1 pools, 1 pgs
    objects: 0 objects, 0 B
    usage:   9.1 GiB used, 30 TiB / 30 TiB avail
    pgs:     1 active+clean
   
# ceph osd tree
ID  CLASS  WEIGHT    TYPE NAME       STATUS  REWEIGHT  PRI-AFF
-1         29.83720  root default                             
-3          8.73286      host node1                           
 0    hdd   3.63869          osd.0       up   1.00000  1.00000
 1    hdd   3.63869          osd.1       up   1.00000  1.00000
 6    ssd   1.45549          osd.6       up   1.00000  1.00000
-5         12.37148      host node2                           
 2    hdd   5.45799          osd.2       up   1.00000  1.00000
 3    hdd   5.45799          osd.3       up   1.00000  1.00000
 7    ssd   1.45549          osd.7       up   1.00000  1.00000
-7          8.73286      host node3                           
 4    hdd   3.63869          osd.4       up   1.00000  1.00000
 5    hdd   3.63869          osd.5       up   1.00000  1.00000
 8    ssd   1.45549          osd.8       up   1.00000  1.00000

需求

根据crush map将ssd和hdd分为两个资源池，iops高的放在ssd的pool，不高的放在hdd的pool

部署

查看crush map分布：

# ceph osd crush tree
ID  CLASS  WEIGHT    TYPE NAME     
-1         29.83720  root default  
-3          8.73286      host node1
 0    hdd   3.63869          osd.0 
 1    hdd   3.63869          osd.1 
 6    ssd   1.45549          osd.6 
-5         12.37148      host node2
 2    hdd   5.45799          osd.2 
 3    hdd   5.45799          osd.3 
 7    ssd   1.45549          osd.7 
-7          8.73286      host node3
 4    hdd   3.63869          osd.4 
 5    hdd   3.63869          osd.5 
 8    ssd   1.45549          osd.8

查看详细crush规则

# ceph osd crush dump
{
    "devices": [
        {
            "id": 0,
            "name": "osd.0",
            "class": "hdd"
        },
        {
            "id": 1,
            "name": "osd.1",
            "class": "hdd"
        },
        {
            "id": 2,
            "name": "osd.2",
            "class": "hdd"
        },
        {
            "id": 3,
            "name": "osd.3",
            "class": "hdd"
        },
        {
            "id": 4,
            "name": "osd.4",
            "class": "hdd"
        },
        {
            "id": 5,
            "name": "osd.5",
            "class": "hdd"
        },
        {
            "id": 6,
            "name": "osd.6",
            "class": "ssd"
        },
        {
            "id": 7,
            "name": "osd.7",
            "class": "ssd"
        },
        {
            "id": 8,
            "name": "osd.8",
            "class": "ssd"
        }
    ],
    "types": [
        {
            "type_id": 0,
            "name": "osd"
        },
        {
            "type_id": 1,
            "name": "host"
        },
        {
            "type_id": 2,
            "name": "chassis"
        },
        {
            "type_id": 3,
            "name": "rack"
        },
        {
            "type_id": 4,
            "name": "row"
        },
        {
            "type_id": 5,
            "name": "pdu"
        },
        {
            "type_id": 6,
            "name": "pod"
        },
        {
            "type_id": 7,
            "name": "room"
        },
        {
            "type_id": 8,
            "name": "datacenter"
        },
        {
            "type_id": 9,
            "name": "zone"
        },
        {
            "type_id": 10,
            "name": "region"
        },
        {
            "type_id": 11,
            "name": "root"
        }
    ],
    "buckets": [
        {
            "id": -1,
            "name": "default",
            "type_id": 11,
            "type_name": "root",
            "weight": 1955411,
            "alg": "straw2",
            "hash": "rjenkins1",
            "items": [
                {
                    "id": -3,
                    "weight": 572317,
                    "pos": 0
                },
                {
                    "id": -5,
                    "weight": 810777,
                    "pos": 1
                },
                {
                    "id": -7,
                    "weight": 572317,
                    "pos": 2
                }
            ]
        },
        {
            "id": -2,
            "name": "default~hdd",
            "type_id": 11,
            "type_name": "root",
            "weight": 1669250,
            "alg": "straw2",
            "hash": "rjenkins1",
            "items": [
                {
                    "id": -4,
                    "weight": 476930,
                    "pos": 0
                },
                {
                    "id": -6,
                    "weight": 715390,
                    "pos": 1
                },
                {
                    "id": -8,
                    "weight": 476930,
                    "pos": 2
                }
            ]
        },
        {
            "id": -3,
            "name": "node1",
            "type_id": 1,
            "type_name": "host",
            "weight": 572317,
            "alg": "straw2",
            "hash": "rjenkins1",
            "items": [
                {
                    "id": 0,
                    "weight": 238465,
                    "pos": 0
                },
                {
                    "id": 1,
                    "weight": 238465,
                    "pos": 1
                },
                {
                    "id": 6,
                    "weight": 95387,
                    "pos": 2
                }
            ]
        },
        {
            "id": -4,
            "name": "node1~hdd",
            "type_id": 1,
            "type_name": "host",
            "weight": 476930,
            "alg": "straw2",
            "hash": "rjenkins1",
            "items": [
                {
                    "id": 0,
                    "weight": 238465,
                    "pos": 0
                },
                {
                    "id": 1,
                    "weight": 238465,
                    "pos": 1
                }
            ]
        },
        {
            "id": -5,
            "name": "node2",
            "type_id": 1,
            "type_name": "host",
            "weight": 810777,
            "alg": "straw2",
            "hash": "rjenkins1",
            "items": [
                {
                    "id": 2,
                    "weight": 357695,
                    "pos": 0
                },
                {
                    "id": 3,
                    "weight": 357695,
                    "pos": 1
                },
                {
                    "id": 7,
                    "weight": 95387,
                    "pos": 2
                }
            ]
        },
        {
            "id": -6,
            "name": "node2~hdd",
            "type_id": 1,
            "type_name": "host",
            "weight": 715390,
            "alg": "straw2",
            "hash": "rjenkins1",
            "items": [
                {
                    "id": 2,
                    "weight": 357695,
                    "pos": 0
                },
                {
                    "id": 3,
                    "weight": 357695,
                    "pos": 1
                }
            ]
        },
        {
            "id": -7,
            "name": "node3",
            "type_id": 1,
            "type_name": "host",
            "weight": 572317,
            "alg": "straw2",
            "hash": "rjenkins1",
            "items": [
                {
                    "id": 4,
                    "weight": 238465,
                    "pos": 0
                },
                {
                    "id": 5,
                    "weight": 238465,
                    "pos": 1
                },
                {
                    "id": 8,
                    "weight": 95387,
                    "pos": 2
                }
            ]
        },
        {
            "id": -8,
            "name": "node3~hdd",
            "type_id": 1,
            "type_name": "host",
            "weight": 476930,
            "alg": "straw2",
            "hash": "rjenkins1",
            "items": [
                {
                    "id": 4,
                    "weight": 238465,
                    "pos": 0
                },
                {
                    "id": 5,
                    "weight": 238465,
                    "pos": 1
                }
            ]
        },
        {
            "id": -9,
            "name": "node1~ssd",
            "type_id": 1,
            "type_name": "host",
            "weight": 95387,
            "alg": "straw2",
            "hash": "rjenkins1",
            "items": [
                {
                    "id": 6,
                    "weight": 95387,
                    "pos": 0
                }
            ]
        },
        {
            "id": -10,
            "name": "node2~ssd",
            "type_id": 1,
            "type_name": "host",
            "weight": 95387,
            "alg": "straw2",
            "hash": "rjenkins1",
            "items": [
                {
                    "id": 7,
                    "weight": 95387,
                    "pos": 0
                }
            ]
        },
        {
            "id": -11,
            "name": "node3~ssd",
            "type_id": 1,
            "type_name": "host",
            "weight": 95387,
            "alg": "straw2",
            "hash": "rjenkins1",
            "items": [
                {
                    "id": 8,
                    "weight": 95387,
                    "pos": 0
                }
            ]
        },
        {
            "id": -12,
            "name": "default~ssd",
            "type_id": 11,
            "type_name": "root",
            "weight": 286161,
            "alg": "straw2",
            "hash": "rjenkins1",
            "items": [
                {
                    "id": -9,
                    "weight": 95387,
                    "pos": 0
                },
                {
                    "id": -10,
                    "weight": 95387,
                    "pos": 1
                },
                {
                    "id": -11,
                    "weight": 95387,
                    "pos": 2
                }
            ]
        }
    ],
    "rules": [
        {
            "rule_id": 0,
            "rule_name": "replicated_rule",
            "ruleset": 0,
            "type": 1,
            "min_size": 1,
            "max_size": 10,
            "steps": [
                {
                    "op": "take",
                    "item": -1,
                    "item_name": "default"
                },
                {
                    "op": "chooseleaf_firstn",
                    "num": 0,
                    "type": "host"
                },
                {
                    "op": "emit"
                }
            ]
        }
    ],
    "tunables": {
        "choose_local_tries": 0,
        "choose_local_fallback_tries": 0,
        "choose_total_tries": 50,
        "chooseleaf_descend_once": 1,
        "chooseleaf_vary_r": 1,
        "chooseleaf_stable": 1,
        "straw_calc_version": 1,
        "allowed_bucket_algs": 54,
        "profile": "jewel",
        "optimal_tunables": 1,
        "legacy_tunables": 0,
        "minimum_required_version": "jewel",
        "require_feature_tunables": 1,
        "require_feature_tunables2": 1,
        "has_v2_rules": 0,
        "require_feature_tunables3": 1,
        "has_v3_rules": 0,
        "has_v4_buckets": 1,
        "require_feature_tunables5": 1,
        "has_v5_rules": 0
    },
    "choose_args": {}
}

查看当前pool写入osd的规则

# ceph osd crush rule ls
replicated_rule

手动编辑crush规则

导出crushmap规则

# ceph osd getcrushmap -o crushmap20200922.bin
19

编译导出的crushmap文件

# crushtool -d crushmap20200922.bin -o crushmap20200922.txt
[root@node1 ceph]# ll
total 8
-rw-r--r-- 1 root root 1326 Sep 22 23:06 crushmap20200922.bin
-rw-r--r-- 1 root root 1935 Sep 22 23:07 crushmap20200922.txt

修改规则

添加三个buckets来定义ssd host 并且将ssd host从原来的hdd host中删除并且将以前host顺便改名

# 原来的host
...

# buckets  定义osd怎么存放的
host node1 {
	id -3		# do not change unnecessarily
	id -4 class hdd		# do not change unnecessarily
	id -9 class ssd		# do not change unnecessarily
	# weight 8.733
	alg straw2
	hash 0	# rjenkins1
	item osd.0 weight 3.639
	item osd.1 weight 3.639
	item osd.6 weight 1.455
}
host node2 {
	id -5		# do not change unnecessarily
	id -6 class hdd		# do not change unnecessarily
	id -10 class ssd		# do not change unnecessarily
	# weight 12.371
	alg straw2
	hash 0	# rjenkins1
	item osd.2 weight 5.458
	item osd.3 weight 5.458
	item osd.7 weight 1.455
}
host node3 {
	id -7		# do not change unnecessarily
	id -8 class hdd		# do not change unnecessarily
	id -11 class ssd		# do not change unnecessarily
	# weight 8.733
	alg straw2
	hash 0	# rjenkins1
	item osd.4 weight 3.639
	item osd.5 weight 3.639
	item osd.8 weight 1.455
}
...

# 修改后的host
...
# buckets  定义osd怎么存放的
host node1-hdd {
	id -3		# do not change unnecessarily
	id -4 class hdd		# do not change unnecessarily
	# weight 8.733
	alg straw2
	hash 0	# rjenkins1
	item osd.0 weight 3.639
	item osd.1 weight 3.639
}
host node2-hdd {
	id -5		# do not change unnecessarily
	id -6 class hdd		# do not change unnecessarily
	# weight 12.371
	alg straw2
	hash 0	# rjenkins1
	item osd.2 weight 5.458
	item osd.3 weight 5.458
}
host node3-hdd {
	id -7		# do not change unnecessarily
	id -8 class hdd		# do not change unnecessarily
	# weight 8.733
	alg straw2
	hash 0	# rjenkins1
	item osd.4 weight 3.639
	item osd.5 weight 3.639
}
host node1-ssd {
	id -9 class ssd		# do not change unnecessarily
	# weight 8.733
	alg straw2
	hash 0	# rjenkins1
	item osd.6 weight 1.455
}
host node2-ssd {
	id -10 class ssd		# do not change unnecessarily
	# weight 12.371
	alg straw2
	hash 0	# rjenkins1
	item osd.7 weight 1.455
}
host node3-ssd {
	id -11 class ssd		# do not change unnecessarily
	# weight 8.733
	alg straw2
	hash 0	# rjenkins1
	item osd.8 weight 1.455
}
...

定义一个上层规则去调用新加的三个host，并且将以前的root default改为root hdd 并且调节权重，权重就是所有osd容量大小相加，比如单盘1.8TB，系统容量为1.635，权重为1.63539

#之前的default调用
...
root default {
	id -1		# do not change unnecessarily
	id -2 class hdd		# do not change unnecessarily
	id -12 class ssd		# do not change unnecessarily
	# weight 29.837
	alg straw2
	hash 0	# rjenkins1
	item node1 weight 8.733
	item node2 weight 12.371
	item node3 weight 8.733
}
...

#修改后的调用
...
root hdd {
	id -1		# do not change unnecessarily
	id -2 class hdd		# do not change unnecessarily
	# weight 29.837
	alg straw2
	hash 0	# rjenkins1
	item node1-hdd weight 7.278
	item node2-hdd weight 10.916
	item node3-hdd weight 7.278
}
root ssd {
	# weight 29.837
	alg straw2
	hash 0	# rjenkins1
	item node1-ssd weight 1.456
	item node2-ssd weight 1.456
	item node3-ssd weight 1.456
}

...

最后定义一个rule规则关联到上层规则,并且将以前的replicated_rule改为hdd_rule

#之前的rule
...
rule replicated_rule { 
	id 0
	type replicated
	min_size 1
	max_size 10
	step take default
	step chooseleaf firstn 0 type host
	step emit
}
...
#修改后rule
...
rule hdd_rule { 
	id 0
	type replicated
	min_size 1
	max_size 10
	step take hdd
	step chooseleaf firstn 0 type host
	step emit
}
rule ssd_rule { 
	id 1
	type replicated
	min_size 1
	max_size 10
	step take ssd
	step chooseleaf firstn 0 type host
	step emit
}
...

修改完成后的规则

# begin crush map
tunable choose_local_tries 0
tunable choose_local_fallback_tries 0
tunable choose_total_tries 50
tunable chooseleaf_descend_once 1
tunable chooseleaf_vary_r 1
tunable chooseleaf_stable 1
tunable straw_calc_version 1
tunable allowed_bucket_algs 54

# devices 定义osd信息
device 0 osd.0 class hdd
device 1 osd.1 class hdd
device 2 osd.2 class hdd
device 3 osd.3 class hdd
device 4 osd.4 class hdd
device 5 osd.5 class hdd
device 6 osd.6 class ssd
device 7 osd.7 class ssd
device 8 osd.8 class ssd

# types  定义数组组织类型  osd 主机 机柜 机房等等
type 0 osd
type 1 host
type 2 chassis
type 3 rack
type 4 row
type 5 pdu
type 6 pod
type 7 room
type 8 datacenter
type 9 zone
type 10 region
type 11 root

# buckets  定义osd怎么存放的
host node1-hdd {
	id -3		# do not change unnecessarily
	id -4 class hdd		# do not change unnecessarily
	# weight 8.733
	alg straw2
	hash 0	# rjenkins1
	item osd.0 weight 3.639
	item osd.1 weight 3.639
}
host node2-hdd {
	id -5		# do not change unnecessarily
	id -6 class hdd		# do not change unnecessarily
	# weight 12.371
	alg straw2
	hash 0	# rjenkins1
	item osd.2 weight 5.458
	item osd.3 weight 5.458
}
host node3-hdd {
	id -7		# do not change unnecessarily
	id -8 class hdd		# do not change unnecessarily
	# weight 8.733
	alg straw2
	hash 0	# rjenkins1
	item osd.4 weight 3.639
	item osd.5 weight 3.639
}
host node1-ssd {
	id -9 class ssd		# do not change unnecessarily
	# weight 8.733
	alg straw2
	hash 0	# rjenkins1
	item osd.6 weight 1.455
}
host node2-ssd {
	id -10 class ssd		# do not change unnecessarily
	# weight 12.371
	alg straw2
	hash 0	# rjenkins1
	item osd.7 weight 1.455
}
host node3-ssd {
	id -11 class ssd		# do not change unnecessarily
	# weight 8.733
	alg straw2
	hash 0	# rjenkins1
	item osd.8 weight 1.455
}
root hdd {
	id -1		# do not change unnecessarily
	id -2 class hdd		# do not change unnecessarily
	# weight 29.837
	alg straw2
	hash 0	# rjenkins1
	item node1-hdd weight 7.278
	item node2-hdd weight 10.916
	item node3-hdd weight 7.278
}
root ssd {
	# weight 29.837
	alg straw2
	hash 0	# rjenkins1
	item node1-ssd weight 1.456
	item node2-ssd weight 1.456
	item node3-ssd weight 1.456
}

# rules 最终的root规则 pool应用到哪个
rule hdd_rule { 
	id 0
	type replicated
	min_size 1
	max_size 10
	step take hdd
	step chooseleaf firstn 0 type host
	step emit
}
rule ssd_rule { 
	id 1
	type replicated
	min_size 1
	max_size 10
	step take ssd
	step chooseleaf firstn 0 type host
	step emit
}

# end crush map

将修改完的规则编译为bin文件

# crushtool -c crushmap20200922.txt  -o crushmap20200922-new.bin
# ll
total 12
-rw-r--r-- 1 root root 1326 Sep 22 23:06 crushmap20200922.bin
-rw-r--r-- 1 root root 2113 Sep 22 23:33 crushmap20200922-new.bin
-rw-r--r-- 1 root root 2516 Sep 22 23:33 crushmap20200922.txt

应用新的规则

# ceph osd setcrushmap -i crushmap20200922-new.bin 
20

应用后新老规则对比，已经可以区分出ssd和hdd规则

# 应用前
# ceph osd tree
ID  CLASS  WEIGHT    TYPE NAME       STATUS  REWEIGHT  PRI-AFF
-1         29.83720  root default                             
-3          8.73286      host node1                           
 0    hdd   3.63869          osd.0       up   1.00000  1.00000
 1    hdd   3.63869          osd.1       up   1.00000  1.00000
 6    ssd   1.45549          osd.6       up   1.00000  1.00000
-5         12.37148      host node2                           
 2    hdd   5.45799          osd.2       up   1.00000  1.00000
 3    hdd   5.45799          osd.3       up   1.00000  1.00000
 7    ssd   1.45549          osd.7       up   1.00000  1.00000
-7          8.73286      host node3                           
 4    hdd   3.63869          osd.4       up   1.00000  1.00000
 5    hdd   3.63869          osd.5       up   1.00000  1.00000
 8    ssd   1.45549          osd.8       up   1.00000  1.00000
 
 # 应用后 可以看出有两个root规则，分为hdd和ssd
 ceph osd tree
ID   CLASS  WEIGHT    TYPE NAME           STATUS  REWEIGHT  PRI-AFF
-15          4.36798  root ssd                                     
-12          1.45599      host node1-ssd                           
  6    ssd   1.45499          osd.6           up   1.00000  1.00000
-13          1.45599      host node2-ssd                           
  7    ssd   1.45499          osd.7           up   1.00000  1.00000
-14          1.45599      host node3-ssd                           
  8    ssd   1.45499          osd.8           up   1.00000  1.00000
 -1         25.47200  root hdd                                     
 -3          7.27800      host node1-hdd                           
  0    hdd   3.63899          osd.0           up   1.00000  1.00000
  1    hdd   3.63899          osd.1           up   1.00000  1.00000
 -5         10.91600      host node2-hdd                           
  2    hdd   5.45799          osd.2           up   1.00000  1.00000
  3    hdd   5.45799          osd.3           up   1.00000  1.00000
 -7          7.27800      host node3-hdd                           
  4    hdd   3.63899          osd.4           up   1.00000  1.00000
  5    hdd   3.63899          osd.5           up   1.00000  1.00000

验证，将之前的ceph-demo资源池的规则改为ssd的

# ceph osd pool get ceph-demo crush_rule
crush_rule: hdd_rule
# ceph osd pool set ceph-demo crush_rule ssd_rule
set pool 2 crush_rule to ssd_rule
# ceph osd pool get ceph-demo crush_rule
crush_rule: ssd_rule

#创建一个100G的rbd
# rbd create ceph-demo/rbd-demo.img --size 100G
# rbd info ceph-demo/rbd-demo.img
rbd image 'rbd-demo.img':
        size 100 GiB in 25600 objects
        order 22 (4 MiB objects)
        snapshot_count: 0
        id: 39a814402607
        block_name_prefix: rbd_data.39a814402607
        format: 2
        features: layering
        op_features: 
        flags: 
        create_timestamp: Tue Sep 22 23:42:55 2020
        access_timestamp: Tue Sep 22 23:42:55 2020
        modify_timestamp: Tue Sep 22 23:42:55 2020
#将ceph-demo设置为rbd类型：
# ceph osd pool application enable ceph-demo rbd

# 挂载到本地
# rbd map ceph-demo/rbd-demo.img
/dev/rbd0
]# mkfs.xfs /dev/rbd0
meta-data=/dev/rbd0              isize=512    agcount=16, agsize=1638400 blks
         =                       sectsz=512   attr=2, projid32bit=1
         =                       crc=1        finobt=0, sparse=0
data     =                       bsize=4096   blocks=26214400, imaxpct=25
         =                       sunit=1024   swidth=1024 blks
naming   =version 2              bsize=4096   ascii-ci=0 ftype=1
log      =internal log           bsize=4096   blocks=12800, version=2
         =                       sectsz=512   sunit=8 blks, lazy-count=1
realtime =none                   extsz=4096   blocks=0, rtextents=0
[root@node1 ceph]# mkdir /mnt/rdb-demo
[root@node1 ceph]# mount /dev/rbd0 /mnt/rdb-demo

#最后测速测一把 写入1.2G 符合ssd
# time dd if=/dev/zero of=test.dbf bs=8k count=300000
300000+0 records in
300000+0 records out
2457600000 bytes (2.5 GB) copied, 2.06784 s, 1.2 GB/s

real    0m2.072s
user    0m0.318s
sys     0m1.742s

#同时也可以看到文件落在三个ssd上
# ceph osd map ceph-demo rbd-demo.img
osdmap e81 pool 'ceph-demo' (2) object 'rbd-demo.img' -> pg 2.7d92bf55 (2.15) -> up ([6,8,7], p6) acting ([6,8,7], p6)

禁用掉禁用在增加或者修改osd的时候自动分配curshmap，否在在重启服务或者添加osd的时候会有大量的pg迁移。出现事故,在配置文件中添加osd crush update on start = false 添加了这个参数后，后面加了osd后需要手动将osd添加到curshmap规则里重新应用

# vim ceph.conf 
...
[osd]
osd crush update on start = false
...

#推送到其他节点
# ceph-deploy --overwrite-conf config push node1 node2 node3
[ceph_deploy.conf][DEBUG ] found configuration file at: /root/.cephdeploy.conf
[ceph_deploy.cli][INFO  ] Invoked (2.0.1): /usr/bin/ceph-deploy --overwrite-conf config push node1 node2 node3
[ceph_deploy.cli][INFO  ] ceph-deploy options:
[ceph_deploy.cli][INFO  ]  username                      : None
[ceph_deploy.cli][INFO  ]  verbose                       : False
[ceph_deploy.cli][INFO  ]  overwrite_conf                : True
[ceph_deploy.cli][INFO  ]  subcommand                    : push
[ceph_deploy.cli][INFO  ]  quiet                         : False
[ceph_deploy.cli][INFO  ]  cd_conf                       : <ceph_deploy.conf.cephdeploy.Conf instance at 0x7f1e65ed7b00>
[ceph_deploy.cli][INFO  ]  cluster                       : ceph
[ceph_deploy.cli][INFO  ]  client                        : ['node1', 'node2', 'node3']
[ceph_deploy.cli][INFO  ]  func                          : <function config at 0x7f1e667c0c08>
[ceph_deploy.cli][INFO  ]  ceph_conf                     : None
[ceph_deploy.cli][INFO  ]  default_release               : False
[ceph_deploy.config][DEBUG ] Pushing config to node1
[node1][DEBUG ] connected to host: node1 
[node1][DEBUG ] detect platform information from remote host
[node1][DEBUG ] detect machine type
[node1][DEBUG ] write cluster configuration to /etc/ceph/{cluster}.conf
[ceph_deploy.config][DEBUG ] Pushing config to node2
[node2][DEBUG ] connected to host: node2 
[node2][DEBUG ] detect platform information from remote host
[node2][DEBUG ] detect machine type
[node2][DEBUG ] write cluster configuration to /etc/ceph/{cluster}.conf
[ceph_deploy.config][DEBUG ] Pushing config to node3
[node3][DEBUG ] connected to host: node3 
[node3][DEBUG ] detect platform information from remote host
[node3][DEBUG ] detect machine type
[node3][DEBUG ] write cluster configuration to /etc/ceph/{cluster}.conf

#重启osd 三台节点全部重启
# systemctl restart ceph-osd.target

注意事项

在扩容和删除osd还有编辑curshmap的时候最好备份一个
初始化就规划好curshmap的规则，否则应用过程中改变的话，就会有大量的pg迁移
重启服务的时候就会自动修改curshmap，所以需要备份，也可以禁用在增加或者修改osd的时候自动分配curshmap

标签：map,ceph,weight,crush,host,hdd,ssd,type,id
来源： https://www.cnblogs.com/makj/p/16345574.html