Implementation:Truera Trulens SnowflakeConnector Server Side

Knowledge Sources	TruLens TruLens Snowflake
Domains	Infrastructure, Snowflake
Last Updated	2026-02-14 08:00 GMT

Overview

Concrete tool for enabling server-side feedback evaluation within Snowflake compute infrastructure, provided by the trulens-connectors-snowflake package.

Description

Server-side evaluation is configured via the init_server_side parameter on SnowflakeConnector. When enabled, TruLens packages feedback functions as Snowpark stored procedures and schedules them as Snowflake tasks, moving evaluation compute from the client to the server.

Usage

Set init_server_side=True when creating a SnowflakeConnector. Optionally use init_server_side_with_staged_packages=True to use pre-staged Python packages.

Code Reference

Source Location

Repository: trulens
File: src/connectors/snowflake/trulens/connectors/snowflake/connector.py
Lines: L72-73 (parameters), L121-131 (initialization logic)

Signature

class SnowflakeConnector(DBConnector):
    def __init__(
        self,
        ...,
        init_server_side: bool = False,
        init_server_side_with_staged_packages: bool = False,
        ...
    ):
        """
        Args:
            init_server_side: Enable server-side feedback evaluation in Snowflake.
                Creates stored procedures and tasks for running feedback functions.
            init_server_side_with_staged_packages: Use pre-staged Python packages
                for server-side evaluation instead of downloading at runtime.
        """

Import

from trulens.connectors.snowflake import SnowflakeConnector

I/O Contract

Inputs

Name	Type	Required	Description
init_server_side	bool	No	Enable server-side evaluation (default: False)
init_server_side_with_staged_packages	bool	No	Use staged packages (default: False)

Outputs

Name	Type	Description
(side effect)	Snowflake Tasks	Stored procedures and scheduled tasks for server-side evaluation

Usage Examples

Enable Server-Side Evaluation

from trulens.connectors.snowflake import SnowflakeConnector
from trulens.core.session import TruSession

connector = SnowflakeConnector(
    account="my_account",
    user="my_user",
    password="my_password",
    database="TRULENS_DB",
    schema="TRULENS_SCHEMA",
    warehouse="COMPUTE_WH",
    init_server_side=True,
)
session = TruSession(connector=connector)

Related Pages

Implements Principle

Principle:Truera_Trulens_Server_Side_Evaluation

Requires Environment

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Principle

Implementation

Heuristic

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