ceph osd set noscrub
时间: 2024-01-09 20:20:01 浏览: 270
ceph osd set noscrub是一个命令,用于设置指定的OSD不进行scrub操作。scrub是Ceph中一种用于检查和修复数据的操作,它会扫描存储池中的对象并检查它们的校验和,以确保数据的完整性。但是,scrub操作会占用大量的系统资源,因此在某些情况下,可能需要暂时禁用scrub操作以避免对系统性能造成影响。
具体来说,ceph osd set noscrub命令可以用于设置指定的OSD不进行scrub操作。例如,可以使用以下命令将OSD 0设置为不进行scrub操作:
```
ceph osd set noscrub 0
```
需要注意的是,这只是一个临时配置,如果需要永久禁用scrub操作,需要修改Ceph配置文件。
相关问题
ceph osd set noout ceph osd set noscrub ceph osd set nodeep-scrub 这三条命令啥意思
这三条命令都是用来控制Ceph中OSD(Object Storage Daemon)的行为的。
- ceph osd set noout:这个命令会设置Ceph集群中的所有OSD处于“noout”模式,也就是不会再进行任何的迁移操作。这通常用于在进行维护或者升级时防止OSD在迁移数据时造成额外的负载。
- ceph osd set noscrub:这个命令会关闭Ceph集群中所有OSD的“scrub”功能,也就是不会再进行数据一致性的检查。这通常用于在进行维护或者升级时防止OSD在执行scrub操作时造成额外的负载。
- ceph osd set nodeep-scrub:这个命令会关闭Ceph集群中所有OSD的“deep-scrub”功能,也就是不会再进行更深入的数据一致性检查。这通常用于在进行维护或者升级时防止OSD在执行deep-scrub操作时造成额外的负载。
需要注意的是,这些命令会影响Ceph集群的数据一致性和性能,因此在使用前需要仔细考虑和评估风险。同时,如果使用了这些命令,在操作完成后需要及时取消相应的设置,以保障集群的正常运行。
ceph osd metadata
根据Ceph官方文档的描述,每个OSD都有一些元数据,这些元数据中包括存储池和对象的信息,以及在集群中该OSD所处的位置。可以使用以下命令来查看某个OSD的元数据信息:
```bash
ceph osd metadata <osd-id>
```
其中,<osd-id>是指要查询元数据的OSD的ID。该命令的输出将会显示出该OSD的各种元数据信息,例如它所在的主机、位置、状态等等。以下是一个输出示例:
```bash
root@ceph01:~# ceph osd metadata 0
{
"id": 0,
"arch": "x86_64",
"back_addr": "192.168.100.201:6801/1172126629",
"back_iface": "enp0s8",
"backend_filestore_dev_node": "",
"backend_filestore_fs_uuid": "",
"backend_filestore_nodeid": "",
"backend_filestore_partition_path": "",
"backend_filestore_type": "btrfs",
"backend_filestore_version": "",
"backend_osd_mkfs": "",
"backend_store_node": "",
"backend_store_type": "",
"backend_store_version": "",
"backend_vdo_dev": "",
"backend_vdo_slug": "",
"backend_vdo_ver": "",
"bluefs_db_size": 4194304,
"bluefs_wal_size": 1048576,
"ceph_version": "ceph version 14.2.0-457-g70e0d3a9fb (70e0d3a9fb735b8f05f2e5b4af57b7d84e74527b) nautilus (dev)",
"cpu": "Intel(R) Core(TM) i7-7700HQ CPU @ 2.80GHz",
"default_device_class": "",
"device_class": "",
"distro": "Ubuntu 18.04.5 LTS",
"distro_description": "Ubuntu 18.04.5 LTS",
"distro_version": "bionic",
"front_addr": "192.168.100.201:6800/1172126629",
"front_iface": "enp0s8",
"hb_back_addr": "192.168.100.201:6898/1172126629",
"hb_front_addr": "192.168.100.201:6899/1172126629",
"hostname": "ceph01",
"journal_rotational": 1,
"journal_size": 5120,
"journal_ssd": 0,
"kb_avail": 4210921016,
"kb_total": 4390736064,
"kb_used": 189815048,
"mem_kb": 32822348,
"nearfull_ratio": 0.85,
"numpg": 128,
"objectstore": "filestore",
"osd_data": "/var/lib/ceph/osd/ceph-0",
"osd_objectstore": "/var/lib/ceph/osd/ceph-0/current",
"osd_scratch": "/var/lib/ceph/osd/ceph-0/tmp",
"public_addr": "192.168.100.201:6800/1172126629",
"rotational": 1,
"rss_kb": 238000,
"uuid": "33f5e969-6f86-4dbe-9ddf-1e18bcf5f2fe",
"vdo_compress_mode": "",
"vdo_use_compression": "0",
"vdo_version": "",
"weight": 1.0
}
```
这里展示了ID为0的OSD的元数据信息。请注意,您需要将0替换为要查询元数据的OSD的实际ID。
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