Release a Collection

This topic describes how to release a collection from memory after a search or a query to reduce memory usage.

from pymilvus import Collection
collection = Collection("book")      # Get an existing collection.
collection.release()

await milvusClient.collectionManager.releaseCollection({
  collection_name: "book",
});

err := milvusClient.ReleaseCollection(
  context.Background(),                            // ctx
  "book",                                          // CollectionName
)
if err != nil {
  log.Fatal("failed to release collection:", err.Error())
}

milvusClient.releaseCollection(
  ReleaseCollectionParam.newBuilder()
    .withCollectionName("book")
    .build()
);

release -c book

Constraints

• Releasing the collection that is successfully loaded is allowed.
• Releasing the collection is allowed when its partition(s) are loaded.
• Error will be returned at the attempt to release partition(s) when the parent collection is already loaded. Future releases will support releasing partitions from a loaded collection, and loading the collection when its partition(s) are released.

What’s next

• Learn more basic operations of Milvus:
  • Insert data into Milvus
  • Create a partition
  • Build an index for vectors
  • Conduct a vector search
  • Conduct a hybrid search