ceph-objectstore-tool工具使用示例

先将某个osd down掉，将对应的硬盘挂载到/tmp/data/sdb1。

Must provide --data-path

Allowed options:
--help                      produce help message
--type arg                  Arg is one of [filestore (default), memstore,
keyvaluestore]
--data-path arg             path to object store, mandatory
--journal-path arg          path to journal, mandatory for filestore type
--pgid arg                  PG id, mandatory except for import, list-lost,
fix-lost, list-pgs, set-allow-sharded-objects
--op arg                    Arg is one of [info, log, remove, export, import,
list, list-lost, fix-lost, list-pgs, rm-past-inte
rvals, set-allow-sharded-objects]
--file arg                  path of file to export or import
--format arg (=json-pretty) Output format which may be json, json-pretty,
xml, xml-pretty
--debug                     Enable diagnostic output to stderr
--skip-journal-replay       Disable journal replay
--skip-mount-omap           Disable mounting of omap

Positional syntax:

ceph-objectstore-tool ... <object> (get|set)-bytes [file]
ceph-objectstore-tool ... <object> set-(attr|omap) <key> [file]
ceph-objectstore-tool ... <object> (get|rm)-(attr|omap) <key>
ceph-objectstore-tool ... <object> get-omaphdr
ceph-objectstore-tool ... <object> set-omaphdr [file]
ceph-objectstore-tool ... <object> list-attrs
ceph-objectstore-tool ... <object> list-omap
ceph-objectstore-tool ... <object> remove

ceph-objectstore-tool import-rados <pool> [file]

<object> can be a JSON object description as displayed
by --op list.
<object> can be an object name which will be looked up in all
the OSD's PGs.

The optional [file] argument will read stdin or write stdout
if not specified or if '-' specified.

列出对象：
ceph-objectstore-tool --op list --data-path /tmp/data/sdb1 --journal-path /tmp/data/sdb1/journal

列出pg：
ceph-objectstore-tool --op list-pgs --data-path /tmp/data/sdb1 --journal-path /tmp/data/sdb1/journal

导出pg：
ceph-objectstore-tool --op export --pgid 1.1 --data-path /tmp/data/sdb1 --journal-path /tmp/data/sdb1/journal --file /tmp/export/sdb1/1.1

导入pg：
ceph-objectstore-tool --op import --data-path /var/lib/ceph/osd/ceph-4 --journal-path /var/lib/ceph/osd/ceph-4/journal --file /tmp/export/sdb1/1.1

列出某个pg的信息：
[root@inspur306 sdb1]# ceph-objectstore-tool --op info --pgid 1.1 --data-path /tmp/data/sdb1 --journal-path /tmp/data/sdb1/journal

列出某个对象的信息：
ceph-objectstore-tool --data-path /tmp/data/sdb1 --journal-path /tmp/data/sdb1/journal "["1.33",{"oid":"10000000003.0000000b","key":"","snapid":-2,"hash":
3095299315,"max":0,"pool":1,"namespace":""}]" list-atttrs

将一个对象导出为文件：
ceph-objectstore-tool --data-path /tmp/data/sdb1 --journal-path /tmp/data/sdb1/journal "["1.33",{"oid":"10000000003.0000000b","key":"","snapid":-2,"hash":
3095299315,"max":0,"pool":1,"namespace":""}]" get-bytes /tmp/file

删除一个对象：
ceph-objectstore-tool --data-path /tmp/data/sdb1 --journal-path /tmp/data/sdb1/journal "["1.33",{"oid":"10000000003.0000000b","key":"","snapid":-2,"hash":
3095299315,"max":0,"pool":1,"namespace":""}]" remove