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Version: User Guides (Cloud)

Quickstart to On-Demand Search
On-Demand Only

Zilliz Cloud provides on-demand compute resources, allowing you to run similarity searches and queries on demand. As shown in the figure below, compute resources automatically suspend when no requests arrive, and suspended compute resources do not incur charges.

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Step 1: Connect to a project endpoint.​

Before working on a database, connect to the project endpoint. You can obtain the project endpoint on the quickstart page after enabling on-demand compute on the Zilliz Cloud console.

📘Notes

  • Managed collection operations require an API key for authentication. This flow does not support username:password authentication.

  • Managed collections in databases for on-demand compute do not require load operations.

# connect to database
client = MilvusClient(
    # a project-specific on-demand compute endpoint
    uri="https://{project-id}.{region}.api.zillizcloud.com",
    token="YOUR_API_KEY"
)

Step 2: (Optional) Create a database.​

Zilliz Cloud ships with a default database. If you choose that, skip this step. You can also create a database as follows.

client.create_database(
    db_name="my_database"
)

Step 3: Create a managed collection.​

Once the database is ready, you can create managed collections in it. Unlike an external collection that maps collection columns to external data files, a managed collection asks you to import data for significant performance gains.

The following example demonstrates how to set up the collection schema and create a collection.

from pymilvus import MilvusClient, DataType

schema = MilvusClient.create_schema()

schema.add_field(
    field_name="product_id",
    datatype=DataType.INT64,
    is_primary=True
)

schema.add_field(
    field_name="product_name",
    datatype=DataType.VARCHAR,
    max_length=512
)

schema.add_field(
    field_name="embedding",
    datatype=DataType.FLOAT_VECTOR,
    dim=768
)

Then you can create a collection with the above schema. If you decide to use the default database, you can safely skip the db_name parameter.

client.use_database(
    db_name="my_database"
)

# create the collection
client.create_collection(
    collection_name="prod_collection",
    schema=schema
)

Step 4: Create indexes.​

You need to create indexes for all vector fields and, optionally, for selected scalar fields.

index_params = client.prepare_index_params()

# Add indexes
index_params.add_index(
    field_name="embedding",
    index_type="AUTOINDEX",
    metric_type="COSINE"
)

index_params.add_index(
    field_name="product_name", 
    index_type="AUTOINDEX"
)

client.create_index(
    db_name="my_database",
    collection_name="prod_collection",
    index_params=index_params
)

Step 5: Import data.​

Once everything is set up, you can import the processed data. The following example assumes that you have stored the processed data in an external storage bucket.

For the data format in your bucket or storage integrations, refer to Format Options.

from pymilvus.bulk_writer import bulk_import

# The path should be relative to the root 
# of a zilliz cloud volume or an external storage
OBJECT_URLS = [[                                                                                                             
    "https://s3.us-west-2.amazonaws.com/your-bucket/path/in/external/storage.json"                                           
]]                                                                                                                                                                                                                                                     
ACCESS_KEY = "YOUR_STORAGE_ACCESS_KEY"                                                                                       
SECRET_KEY = "YOUR_STORAGE_SECRET_KEY"

res = bulk_import(
    api_key="YOUR_ZILLIZ_API_KEY",
    url="https://api.cloud.zilliz.com",
    project_id="proj-xxxxxxxxxxxxxxxxxxx",
    region_id="aws-us-west-2",
    db_name="my_database",
    collection_name="prod_collection",
    object_url=OBJECT_URLS,
    access_key=ACCESS_KEY,
    secret_key=SECRET_KEY
)

# job-xxxxxxxxxxxxxxxxxxxxx

With the returned job ID, you can monitor its progress.

import json
from pymilvus.bulk_writer import get_import_progress

# Get bulk-insert job progress
resp = get_import_progress(
    api_key="YOUR_ZILLIZ_API_KEY",
    url="https://api.cloud.zilliz.com",
    cluster_id="inxx-xxxxxxxxxxxxxxxxxxx",
    job_id="job-xxxxxxxxxxxxxxxxxxxxx",
)

print(json.dumps(resp.json(), indent=4))

Step 6: Create an on-demand cluster​

Once your collection is ready, you need to attach it to an on-demand cluster for on-demand searches. The following command creates a cluster and returns its ID.

export CONTROL_PLANE_ENDPOINT="https://api.cloud.zilliz.com"

curl --request POST \
--url "${CONTROL_PLANE_ENDPOINT}/v2/clusters/createOnDemandCluster" \
--header "Authorization: Bearer ${TOKEN}" \
--header "Content-Type: application/json" \
-d '{
    "projectId": "proj-xxxxxxxxxxxxxxxxxxx",
    "regionId": "aws-us-west-2",
    "clusterName": "my-on-demand",
    "cuSize": 8,
    "autoSuspend": 60
}'

# inxx-xxxxxxxxxxxxx

By default, the cluster automatically suspends for 60 seconds after the last request, and you can set it to a value that suits your use cases.

Step 7: Conduct searches.​

When you need to conduct searches, queries, or hybrid searches, you can attach to the on-demand cluster created in the previous step through a session.

from pymilvus import MilvusClient                         
                                                                                                                               
client = MilvusClient(                                                                                                       
    uri="https://{project-id}.{region}.api.zillizcloud.com",                                                                 
    token="YOUR_API_KEY"                                                                                                     
)                                                                                                                            
                                                                                                                               
session = client.session(cluster_id="inxx-xxxxxxxxxxxxxxx")                                                                  
                                                                                                                               
# Must match collection vector dimension (example: 768)                                                                      
query_vector = [0.3580376395471989, -0.6023495712049978, 0.18414012509913835, -0.26286205330961354, ..., 0.9029438446296592]                                
                                                                                                                               
res = session.search(                                                                                                        
    db_name="my_database",                                                                                                   
    collection_name="prod_collection",                                                                                       
    anns_field="embedding",                                                                                                  
    data=[query_vector],                                                                                                     
    limit=3,                                                                                                                 
    output_fields=["product_id", "product_name"]                                                                                
)

Then, you can explore your data and find the most valuable subset. Then you can connect to a serving cluster, import the data into it, and serve it for production.