7.9. BlueFS DB 장치 확장
ceph-bluestore 도구를 사용하여 ceph-volume 생성 OSD의 RocksDB 데이터인 BlueStore 파일 시스템(BlueFS) 데이터의 스토리지를 확장할 수 있습니다.
사전 요구 사항
- 실행 중인 Red Hat Ceph Storage 클러스터.
-
Ceph OSD는
ceph-volume유틸리티를 통해 준비합니다. - 볼륨 그룹과 논리 볼륨이 생성됩니다.
참고
OSD가 배포된 호스트에서 다음 단계를 실행합니다.
프로세스
선택 사항:
cephadm쉘 외에도 Red Hat Ceph Storage 클러스터의 장치를 나열합니다.예제
[ceph: root@host01 /]# ceph-volume lvm list ====== osd.3 ======= [db] /dev/db-test/db1 block device /dev/test/lv1 block uuid N5zoix-FePe-uExe-UngY-D9YG-BMs0-1tTDyB cephx lockbox secret cluster fsid 1a6112da-ed05-11ee-bacd-525400565cda cluster name ceph crush device class db device /dev/db-test/db1 db uuid 1TUaDY-3mEt-fReP-cyB2-JyZ1-oUPa-hKPfo6 encrypted 0 osd fsid 94ff742c-7bfd-4fb5-8dc4-843d10ac6731 osd id 3 osdspec affinity None type db vdo 0 devices /dev/vdh [block] /dev/test/lv1 block device /dev/test/lv1 block uuid N5zoix-FePe-uExe-UngY-D9YG-BMs0-1tTDyB cephx lockbox secret cluster fsid 1a6112da-ed05-11ee-bacd-525400565cda cluster name ceph crush device class db device /dev/db-test/db1 db uuid 1TUaDY-3mEt-fReP-cyB2-JyZ1-oUPa-hKPfo6 encrypted 0 osd fsid 94ff742c-7bfd-4fb5-8dc4-843d10ac6731 osd id 3 osdspec affinity None type block vdo 0 devices /dev/vdg볼륨 그룹 정보를 가져옵니다.
예제
[root@host01 ~]# vgs VG #PV #LV #SN Attr VSize VFree db-test 1 1 0 wz--n- <200.00g <160.00g test 1 1 0 wz--n- <200.00g <170.00g
Ceph OSD 서비스를 중지합니다.
예제
[root@host01 ~]# systemctl stop host01a6112da-ed05-11ee-bacd-525400565cda@osd.3.service
논리 볼륨의 크기를 조정, 축소 및 확장합니다.
예제
[root@host01 ~]# lvresize -l 100%FREE /dev/db-test/db1 Size of logical volume db-test/db1 changed from 40.00 GiB (10240 extents) to <160.00 GiB (40959 extents). Logical volume db-test/db1 successfully resized.
cephadm쉘을 시작합니다.구문
cephadm shell -m /var/lib/ceph/CLUSTER_FSID/osd.OSD_ID:/var/lib/ceph/osd/ceph-OSD_ID:z
예제
[root@host01 ~]# cephadm shell -m /var/lib/ceph/1a6112da-ed05-11ee-bacd-525400565cda/osd.3:/var/lib/ceph/osd/ceph-3:z
ceph-bluestore-tool은cephadm쉘 컨테이너 내에서 BlueStore 데이터에 액세스해야 하므로 바인딩 마운트해야 합니다. BlueStore 데이터를 사용하려면-m옵션을 사용합니다.확장 전에 Rocks DB의 크기를 확인하십시오.
구문
ceph-bluestore-tool show-label --path OSD_DIRECTORY_PATH예제
[ceph: root@host01 /]# ceph-bluestore-tool show-label --path /var/lib/ceph/osd/ceph-3/ inferring bluefs devices from bluestore path { "/var/lib/ceph/osd/ceph-3/block": { "osd_uuid": "94ff742c-7bfd-4fb5-8dc4-843d10ac6731", "size": 32212254720, "btime": "2024-04-03T08:34:12.742848+0000", "description": "main", "bfm_blocks": "7864320", "bfm_blocks_per_key": "128", "bfm_bytes_per_block": "4096", "bfm_size": "32212254720", "bluefs": "1", "ceph_fsid": "1a6112da-ed05-11ee-bacd-525400565cda", "ceph_version_when_created": "ceph version 19.0.0-2493-gd82c9aa1 (d82c9aa17f09785fe698d262f9601d87bb79f962) squid (dev)", "created_at": "2024-04-03T08:34:15.637253Z", "elastic_shared_blobs": "1", "kv_backend": "rocksdb", "magic": "ceph osd volume v026", "mkfs_done": "yes", "osd_key": "AQCEFA1m9xuwABAAwKEHkASVbgB1GVt5jYC2Sg==", "osdspec_affinity": "None", "ready": "ready", "require_osd_release": "19", "whoami": "3" }, "/var/lib/ceph/osd/ceph-3/block.db": { "osd_uuid": "94ff742c-7bfd-4fb5-8dc4-843d10ac6731", "size": 40794497536, "btime": "2024-04-03T08:34:12.748816+0000", "description": "bluefs db" } }BlueStore 장치를 확장합니다.
구문
ceph-bluestore-tool bluefs-bdev-expand --path OSD_DIRECTORY_PATH예제
[ceph: root@host01 /]# ceph-bluestore-tool bluefs-bdev-expand --path /var/lib/ceph/osd/ceph-3/ inferring bluefs devices from bluestore path 1 : device size 0x27ffbfe000 : using 0x2300000(35 MiB) 2 : device size 0x780000000 : using 0x52000(328 KiB) Expanding DB/WAL... 1 : expanding to 0x171794497536 1 : size label updated to 171794497536
block.db가 확장되었는지 확인합니다.구문
ceph-bluestore-tool show-label --path OSD_DIRECTORY_PATH예제
[ceph: root@host01 /]# ceph-bluestore-tool show-label --path /var/lib/ceph/osd/ceph-3/ inferring bluefs devices from bluestore path { "/var/lib/ceph/osd/ceph-3/block": { "osd_uuid": "94ff742c-7bfd-4fb5-8dc4-843d10ac6731", "size": 32212254720, "btime": "2024-04-03T08:34:12.742848+0000", "description": "main", "bfm_blocks": "7864320", "bfm_blocks_per_key": "128", "bfm_bytes_per_block": "4096", "bfm_size": "32212254720", "bluefs": "1", "ceph_fsid": "1a6112da-ed05-11ee-bacd-525400565cda", "ceph_version_when_created": "ceph version 19.0.0-2493-gd82c9aa1 (d82c9aa17f09785fe698d262f9601d87bb79f962) squid (dev)", "created_at": "2024-04-03T08:34:15.637253Z", "elastic_shared_blobs": "1", "kv_backend": "rocksdb", "magic": "ceph osd volume v026", "mkfs_done": "yes", "osd_key": "AQCEFA1m9xuwABAAwKEHkASVbgB1GVt5jYC2Sg==", "osdspec_affinity": "None", "ready": "ready", "require_osd_release": "19", "whoami": "3" }, "/var/lib/ceph/osd/ceph-3/block.db": { "osd_uuid": "94ff742c-7bfd-4fb5-8dc4-843d10ac6731", "size": 171794497536, "btime": "2024-04-03T08:34:12.748816+0000", "description": "bluefs db" } }쉘을 종료하고 OSD를 다시 시작합니다.
예제
[root@host01 ~]# systemctl start host01a6112da-ed05-11ee-bacd-525400565cda@osd.3.service osd.3 host01 running (15s) 0s ago 13m 46.9M 4096M 19.0.0-2493-gd82c9aa1 3714003597ec 02150b3b6877
