使用工具milvus_backup进行备份迁移milvus

下载milvus-backup

工具地址：https://github.com/zilliztech/milvus-backup/releases

配置操作步骤

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#milvus_backup 配置文件
$ cat old_backup.yaml
milvus:
  address: 1.1.1.1.119
  port: 19530
  username: ""
  password: ""

minio:
  address: 1.1.1.1.119
  port: 9000
  accessKeyID: minioadmin
  secretAccessKey: 123456!
  useSSL: false
  bucketName: a-bucket
  rootPath: files   
  
$ cat new_backup.yaml 
milvus:
  address: 1.1.1.1.202
  port: 31530
  username: ""
  password: ""

minio:
  address: 1.1.1.1.202
  port: 19000
  accessKeyID: minioadmin
  secretAccessKey: "123456!" 
  useSSL: false
  bucketName: milvus-bucket-2
  rootPath: files

#备份旧库，-c 是需要备份集合名
./milvus-backup create -n my_backup_20251218 --config backup.yaml -c dangjian2


#创建别名，准备迁移
mc alias set oldminio http://1.1.1.1.119:9000  minioadmin  '123456!'
mc alias set newminio http://1.1.1.1.202:19000 minioadmin  '123456!'

#迁移旧数据到新的minio存储桶
mc mirror --overwrite \
  oldminio/a-bucket \
  newminio/milvus-bucket-dangjian
  
#恢复数据到新的milvus集合
./milvus-backup restore   --config new_backup.yaml   --name my_backup_20251218   -c dangjian2
  

#使用milvus_cli 连接库，创建索引并加载
milvus_cli > connect -uri http://1.1.1.1.202:31530
milvus_cli > use database --db_name default
Using database default successfully!
milvus_cli > load collection --collection-name old_jihe2
show collection --collection-name dangjian2
+---------------+-----------------------------------------------------------------------+
| Name          | dangjian2                                                             |
+---------------+-----------------------------------------------------------------------+
| Description   | Document collection 'dangjian2' with 'id' as primary key              |
+---------------+-----------------------------------------------------------------------+
| Is Empty      | False                                                                 |
+---------------+-----------------------------------------------------------------------+
| Entities      | 148387                                                                |
+---------------+-----------------------------------------------------------------------+
| Primary Field | id                                                                    |
+---------------+-----------------------------------------------------------------------+
| Schema        | Description: Document collection 'dangjian2' with 'id' as primary key |
|               |                                                                       |
|               | Auto ID: False                                                        |
|               |                                                                       |
|               | Fields(* is the primary field):                                       |
|               |  - *id VARCHAR                                                        |
|               |  - filename VARCHAR                                                   |
|               |  - url VARCHAR                                                        |
|               |  - title VARCHAR                                                      |
|               |  - section VARCHAR                                                    |
|               |  - quality INT16                                                      |
|               |  - category VARCHAR                                                   |
|               |  - sub_category VARCHAR                                               |
|               |  - level INT16                                                        |
|               |  - summary VARCHAR                                                    |
|               |  - text VARCHAR                                                       |
|               |  - vector FLOAT_VECTOR dim: 1024                                      |
+---------------+-----------------------------------------------------------------------+
| Partitions    | - _default                                                            |
+---------------+-----------------------------------------------------------------------+
| Indexes       | -                                                                     |
+---------------+-----------------------------------------------------------------------+

#创建索引，因为milvus_backup工具不备份索引
milvus_cli > create index
Collection name (dangjian2): dangjian2
The name of the field to create an index for (id, filename, url, title, section, quality, category, sub_category, level, summary, text, vector): vector
Index name: 
Index name: 
Index name: dangjian
Index type (FLAT, IVF_FLAT, IVF_SQ8, IVF_PQ, RNSG, HNSW, ANNOY, AUTOINDEX, DISKANN, GPU_IVF_FLAT, GPU_IVF_PQ, SPARSE_INVERTED_INDEX, SPARSE_WAND, SCANN, STL_SORT, Trie, INVERTED, ) []: IVF_FLAT
Vector Index metric type (L2, IP, HAMMING, TANIMOTO, COSINE, ) []: L2
Index params nlist: 1024
Status(code=0, message=)
Create index successfully!
milvus_cli > load collection -c dangjian2
Load collection dangjian2 successfully
使用工具milvus_backup进行备份迁移milvus
http://example.com/2025/12/18/Backup and Restore Milvus with milvus-backup/
作者
种田人
发布于
2025年12月18日
许可协议