milvus/docs/user_guides/collection_ttl.md

Illustration

Collection TTL(Time to Live ) is the expiration time attribute on the collection. The expired data will not be queried or searched and clean up with the GC mechanism.

Manipulation

We provide a property of collection level to config TTL: collection.ttl.seconds. There is a priority for the collection TTL configuration, attempting to get the collection.ttl.seconds from the collection properties first . If the configuration does not exist within the properties, then read common.entityExpiration from milvus.yaml, the collection TTL will not be set when the above steps fail.

Set TTL for a new collection

The following example is set TTL to 15 seconds:

collection = Collection(name=name,vschema=schema,properties={"collection.ttl.seconds": 15})

Set TTL for an old collection

The following example is modifying TTL to 1800 seconds:

collection.set_properties(properties={"collection.ttl.seconds": 1800})

The above examples use Python SDK . If you want to know more details, please refer to example.py.