Kelola Alias

Milvus menyediakan kemampuan manajemen alias. Halaman ini mendemonstrasikan prosedur untuk membuat, mendaftarkan, mengubah, dan menghapus alias.

Gambaran Umum

Anda dapat membuat alias untuk koleksi Anda. Sebuah koleksi dapat memiliki beberapa alias, namun koleksi tidak dapat berbagi alias.

Setelah menerima permintaan terhadap sebuah koleksi, Milvus akan mencari lokasi koleksi berdasarkan nama yang diberikan. Jika koleksi dengan nama yang diberikan tidak ada, Milvus akan terus mencari nama yang diberikan sebagai nama alias. Anda dapat menggunakan alias koleksi untuk menyesuaikan kode Anda dengan skenario yang berbeda.

Membuat Alias

Cuplikan kode berikut ini mendemonstrasikan cara membuat alias untuk sebuah koleksi.

from pymilvus import MilvusClient

client = MilvusClient(
    uri="http://localhost:19530",
    token="root:Milvus"
)

# 9. Manage aliases
# 9.1. Create aliases
client.create_alias(
    collection_name="customized_setup_2",
    alias="bob"
)

client.create_alias(
    collection_name="customized_setup_2",
    alias="alice"
)

import io.milvus.v2.service.utility.request.CreateAliasReq;
import io.milvus.v2.client.ConnectConfig;
import io.milvus.v2.client.MilvusClientV2;

String CLUSTER_ENDPOINT = "http://localhost:19530";
String TOKEN = "root:Milvus";

// 1. Connect to Milvus server
ConnectConfig connectConfig = ConnectConfig.builder()
        .uri(CLUSTER_ENDPOINT)
        .token(TOKEN)
        .build();

MilvusClientV2 client = new MilvusClientV2(connectConfig);

// 9. Manage aliases

// 9.1 Create alias
CreateAliasReq createAliasReq = CreateAliasReq.builder()
        .collectionName("customized_setup_2")
        .alias("bob")
        .build();

client.createAlias(createAliasReq);

createAliasReq = CreateAliasReq.builder()
        .collectionName("customized_setup_2")
        .alias("alice")
        .build();

client.createAlias(createAliasReq);

import { MilvusClient, DataType } from "@zilliz/milvus2-sdk-node";

const address = "http://localhost:19530";
const token = "root:Milvus";
const client = new MilvusClient({address, token});

// 9. Manage aliases
// 9.1 Create aliases
res = await client.createAlias({
    collection_name: "customized_setup_2",
    alias: "bob"
})

console.log(res.error_code)

// Output
// 
// Success
// 

res = await client.createAlias({
    collection_name: "customized_setup_2",
    alias: "alice"
})

console.log(res.error_code)

// Output
// 
// Success
// 

// Go 缺失

export CLUSTER_ENDPOINT="http://localhost:19530"
export TOKEN="root:Milvus"

curl --request POST \
--url "${CLUSTER_ENDPOINT}/v2/vectordb/aliases/create" \
--header "Authorization: Bearer ${TOKEN}" \
--header "Content-Type: application/json" \
-d '{
    "aliasName": "bob",
    "collectionName": "customized_setup_2"
}'

# {
#     "code": 0,
#     "data": {}
# }

curl --request POST \
--url "${CLUSTER_ENDPOINT}/v2/vectordb/aliases/create" \
--header "Authorization: Bearer ${TOKEN}" \
--header "Content-Type: application/json" \
-d '{
    "aliasName": "alice",
    "collectionName": "customized_setup_2"
}'

# {
#     "code": 0,
#     "data": {}
# }

Membuat Daftar Alias

Cuplikan kode berikut ini mendemonstrasikan prosedur untuk membuat daftar alias yang dialokasikan ke koleksi tertentu.

# 9.2. List aliases
res = client.list_aliases(
    collection_name="customized_setup_2"
)

print(res)

# Output
#
# {
#     "aliases": [
#         "bob",
#         "alice"
#     ],
#     "collection_name": "customized_setup_2",
#     "db_name": "default"
# }

import io.milvus.v2.service.utility.request.ListAliasesReq;
import io.milvus.v2.service.utility.response.ListAliasResp;

// 9.2 List alises
ListAliasesReq listAliasesReq = ListAliasesReq.builder()
    .collectionName("customized_setup_2")
    .build();

ListAliasResp listAliasRes = client.listAliases(listAliasesReq);

System.out.println(listAliasRes.getAlias());

// Output:
// [bob, alice]

// 9.2 List aliases
res = await client.listAliases({
    collection_name: "customized_setup_2"
})

console.log(res.aliases)

// Output
// 
// [ 'bob', 'alice' ]
// 

// Go 缺失

export CLUSTER_ENDPOINT="http://localhost:19530"
export TOKEN="root:Milvus"

curl --request POST \
--url "${CLUSTER_ENDPOINT}/v2/vectordb/aliases/list" \
--header "Authorization: Bearer ${TOKEN}" \
--header "Content-Type: application/json" \
-d '{}'

# {
#     "code": 0,
#     "data": [
#         "bob",
#         "alice"
#     ]
# }

Mendeskripsikan Alias

Potongan kode berikut ini mendeskripsikan alias tertentu secara detail, termasuk nama koleksi yang telah dialokasikan.

# 9.3. Describe aliases
res = client.describe_alias(
    alias="bob"
)

print(res)

# Output
#
# {
#     "alias": "bob",
#     "collection_name": "customized_setup_2",
#     "db_name": "default"
# }

import io.milvus.v2.service.utility.request.DescribeAliasReq;
import io.milvus.v2.service.utility.response.DescribeAliasResp;

// 9.3 Describe alias
DescribeAliasReq describeAliasReq = DescribeAliasReq.builder()
    .alias("bob")
    .build();

DescribeAliasResp describeAliasRes = client.describeAlias(describeAliasReq);

System.out.println(describeAliasRes);

// Output:
// DescribeAliasResp(collectionName=customized_setup_2, alias=bob)

// 9.3 Describe aliases
res = await client.describeAlias({
    collection_name: "customized_setup_2",
    alias: "bob"
})

console.log(res)

// Output
// 
// {
//   status: {
//     extra_info: {},
//     error_code: 'Success',
//     reason: '',
//     code: 0,
//     retriable: false,
//     detail: ''
//   },
//   db_name: 'default',
//   alias: 'bob',
//   collection: 'customized_setup_2'
// }
// 

// Go 缺失

export CLUSTER_ENDPOINT="http://localhost:19530"
export TOKEN="root:Milvus"

curl --request POST \
--url "${CLUSTER_ENDPOINT}/v2/vectordb/aliases/describe" \
--header "Authorization: Bearer ${TOKEN}" \
--header "Content-Type: application/json" \
-d '{
    "aliasName": "bob"
}'

# {
#     "code": 0,
#     "data": {
#         "aliasName": "bob",
#         "collectionName": "customized_setup_2",
#         "dbName": "default"
#     }
# }

Mengubah Alias

Anda dapat mengalokasikan ulang alias yang telah dialokasikan ke koleksi tertentu ke koleksi lain.

# 9.4 Reassign aliases to other collections
client.alter_alias(
    collection_name="customized_setup_1",
    alias="alice"
)

res = client.list_aliases(
    collection_name="customized_setup_1"
)

print(res)

# Output
#
# {
#     "aliases": [
#         "alice"
#     ],
#     "collection_name": "customized_setup_1",
#     "db_name": "default"
# }

res = client.list_aliases(
    collection_name="customized_setup_2"
)

print(res)

# Output
#
# {
#     "aliases": [
#         "bob"
#     ],
#     "collection_name": "customized_setup_2",
#     "db_name": "default"
# }

import io.milvus.v2.service.utility.request.AlterAliasReq;

// 9.4 Reassign alias to other collections
AlterAliasReq alterAliasReq = AlterAliasReq.builder()
        .collectionName("customized_setup_1")
        .alias("alice")
        .build();

client.alterAlias(alterAliasReq);

ListAliasesReq listAliasesReq = ListAliasesReq.builder()
        .collectionName("customized_setup_1")
        .build();

ListAliasResp listAliasRes = client.listAliases(listAliasesReq);

System.out.println(listAliasRes.getAlias());

listAliasesReq = ListAliasesReq.builder()
        .collectionName("customized_setup_2")
        .build();

listAliasRes = client.listAliases(listAliasesReq);

System.out.println(listAliasRes.getAlias());

// Output:
// [bob]

// 9.4 Reassign aliases to other collections
res = await client.alterAlias({
    collection_name: "customized_setup_1",
    alias: "alice"
})

console.log(res.error_code)

// Output
// 
// Success
// 

res = await client.listAliases({
    collection_name: "customized_setup_1"
})

console.log(res.aliases)

// Output
// 
// [ 'alice' ]
// 

res = await client.listAliases({
    collection_name: "customized_setup_2"
})

console.log(res.aliases)

// Output
// 
// [ 'bob' ]
// 

// Go 缺失

export CLUSTER_ENDPOINT="http://localhost:19530"
export TOKEN="root:Milvus"

curl --request POST \
--url "${CLUSTER_ENDPOINT}/v2/vectordb/aliases/alter" \
--header "Authorization: Bearer ${TOKEN}" \
--header "Content-Type: application/json" \
-d '{
    "aliasName": "alice",
    "collectionName": "customized_setup_1"
}'

# {
#     "code": 0,
#     "data": {}
# }

curl --request POST \
--url "${CLUSTER_ENDPOINT}/v2/vectordb/aliases/describe" \
--header "Authorization: Bearer ${TOKEN}" \
--header "Content-Type: application/json" \
-d '{
    "aliasName": "bob"
}'

# {
#     "code": 0,
#     "data": {
#         "aliasName": "bob",
#         "collectionName": "customized_setup_2",
#         "dbName": "default"
#     }
# }

curl --request POST \
--url "${CLUSTER_ENDPOINT}/v2/vectordb/aliases/describe" \
--header "Authorization: Bearer ${TOKEN}" \
--header "Content-Type: application/json" \
-d '{
    "aliasName": "alice"
}'

# {
#     "code": 0,
#     "data": {
#         "aliasName": "alice",
#         "collectionName": "customized_setup_1",
#         "dbName": "default"
#     }
# }