这篇文章主要为大家展示了“怎么备份和恢复bucket元数据信息”，内容简而易懂，条理清晰，希望能够帮助大家解决疑惑，下面让小编带领大家一起研究并学习一下“怎么备份和恢复bucket元数据信息”这篇文章吧。
在ceph 10.2.9 下面操作，以修改Object名称为host的content_type属性为例，所有数据操作都有风险，请谨慎操作。
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root@demohost:/home/demouser# radosgw-admin bi list --bucket=test
[
{
"type": "plain",
"idx": "host",
"entry": {
"name": "host", #object名称
"instance": "",
"ver": {
"pool": 60,
"epoch": 1
},
"locator": "",
"exists": "true",
"meta": {
"category": 1,
"size": 254,
"mtime": "2017-08-30 07:46:16.956870Z",
"etag": "99a8629776211452eb4b9c3e6333a426",
"owner": "s3user",
"owner_display_name": "s3user",
"content_type": "text\/plain", #Object对应的content_type属性
"accounted_size": 254
},
"tag": "0a6967a5-2c76-427a-99c6-8a788ca25034.54133.2084",
"flags": 0,
"pending_map": [],
"versioned_epoch": 0
}
}
]root@demohost:/home/demouser# radosgw-admin bi get --bucket=test --object=host
{
"type": "plain",
"idx": "host",
"entry": {
"name": "host",
"instance": "",
"ver": {
"pool": 60,
"epoch": 1
},
"locator": "",
"exists": "true",
"meta": {
"category": 1,
"size": 254,
"mtime": "2017-08-30 07:46:16.956870Z",
"etag": "99a8629776211452eb4b9c3e6333a426",
"owner": "s3user",
"owner_display_name": "s3user",
"content_type": "text\/plain",
"accounted_size": 254
},
"tag": "0a6967a5-2c76-427a-99c6-8a788ca25034.54133.2084",
"flags": 0,
"pending_map": [],
"versioned_epoch": 0
}
}
root@demohost:/home/demouser# radosgw-admin bi get --bucket=test --object=host > host.bi #导出(备份)到本地root@demohost:/home/demouser# cat host.bi
{
"type": "plain",
"idx": "host",
"entry": {
"name": "host",
"instance": "",
"ver": {
"pool": 60,
"epoch": 1
},
"locator": "",
"exists": "true",
"meta": {
"category": 1,
"size": 254,
"mtime": "2017-08-30 07:46:16.956870Z",
"etag": "99a8629776211452eb4b9c3e6333a426",
"owner": "s3user",
"owner_display_name": "s3user",
"content_type": "jpg\/plain", #随便改了个jpg
"accounted_size": 254
},
"tag": "0a6967a5-2c76-427a-99c6-8a788ca25034.54133.2084",
"flags": 0,
"pending_map": [],
"versioned_epoch": 0
}
}
root@demohost:/home/demouser# radosgw-admin bi put --bucket=test --object=host < host.bi #导入修改后的内容(恢复)root@demohost:/home/demouser# radosgw-admin bi get --bucket=test --object=host
{
"type": "plain",
"idx": "host",
"entry": {
"name": "host",
"instance": "",
"ver": {
"pool": 60,
"epoch": 1
},
"locator": "",
"exists": "true",
"meta": {
"category": 1,
"size": 254,
"mtime": "0.000000",
"etag": "99a8629776211452eb4b9c3e6333a426",
"owner": "s3user",
"owner_display_name": "s3user",
"content_type": "jpg\/plain", #修改完成
"accounted_size": 254
},
"tag": "0a6967a5-2c76-427a-99c6-8a788ca25034.54133.2084",
"flags": 0,
"pending_map": [],
"versioned_epoch": 0
}
}
root@demohost:/home/demouser# radosgw-admin bi list --bucket=test
[
{
"type": "plain",
"idx": "host",
"entry": {
"name": "host",
"instance": "",
"ver": {
"pool": 60,
"epoch": 1
},
"locator": "",
"exists": "true",
"meta": {
"category": 1,
"size": 254,
"mtime": "0.000000",
"etag": "99a8629776211452eb4b9c3e6333a426",
"owner": "s3user",
"owner_display_name": "u-n4999",
"content_type": "jpg\/plain", #修改完成
"accounted_size": 254
},
"tag": "0a6967a5-2c76-427a-99c6-8a788ca25034.54133.2084",
"flags": 0,
"pending_map": [],
"versioned_epoch": 0
}
}
]以上是“怎么备份和恢复bucket元数据信息”这篇文章的所有内容，感谢各位的阅读！相信大家都有了一定的了解，希望分享的内容对大家有所帮助，如果还想学习更多知识，欢迎关注亿速云行业资讯频道！
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原文链接：https://my.oschina.net/diluga/blog/4392183
