Insert data with nullable field with grpc-RpcError when running milvus in local (pymilvus version 2.5.6)

[yrom]

Test code:

from pymilvus import DataType, MilvusClient
import random
import os


def test(test_func):
    def wrapper(*args, **kwargs):
        print(f"Running test: {test_func.__name__}\n")
        result = test_func(*args, **kwargs)
        print(f"Test {test_func.__name__} done.\n")
        return result

    return wrapper


DIM = 1024
client: MilvusClient = None


def init_client():
    global client
    # local db
    client = MilvusClient(uri="./test.db", timeout=10) 

    # 创建schema
    schema = client.create_schema(enable_dynamic_field=False, auto_id=True, description="test")
    # 添加主键
    schema.add_field("id", DataType.INT64, is_primary=True)

    schema.add_field("text", DataType.VARCHAR, max_length=2048)
    schema.add_field("meta", DataType.JSON, nullable=True)
    schema.add_field("embeddings", DataType.FLOAT_VECTOR, dim=DIM)

    index_params = client.prepare_index_params()
    index_params.add_index(
        field_name="embeddings",
        index_type="IVF_FLAT",
        index_name="embeddings_index",
        metric_type="L2",
        params={"nlist": 128},
    )
    # index_params.add_index(
    #     field_name="text",
    #     index_type="",
    #     index_name="text_index",
    # )
    client.create_collection(
        "test_collection",
        schema=schema,
        index_params=index_params,
    )

def create_embedding(seed: int = 42):
    random.seed(seed * 3)
    vector = [random.random() for _ in range(DIM)]
    # normalize
    norm = sum(x**2 for x in vector) ** 0.5
    vector = [x / norm for x in vector]
    return vector



def test_insert():
    # test nullable field
    data = [
        {"text": "xxx", "embeddings": create_embedding(0)},
    ]


    client.insert("test_collection", data)

init_client()
test_insert()

test_insert() failed with error:

2025-03-28 13:49:56,067 [ERROR][handler]: grpc RpcError: [insert_rows], <_InactiveRpcError: StatusCode.UNAVAILABLE, Socket closed>, <Time:{'RPC start': '2025-03-28 13:49:55.985987', 'gRPC error': '2025-03-28 13:49:56.067280'}> (decorators.py:151)

[yhmo]

You are using milvus-lite. milvus-lite is a light-weight local milvus.
Now the latest version of milvus-lite is v2.4.12. "Nullable" is a feature of v2.5.x, the v2.5 of milvus-lite is still in progress, not ready yet.