aba4a3f1a5
This commit renames the 'laborious' package to 'model_manager' across the entire project. This includes renaming directories, modules, references in code, configuration files, and documentation to reflect the new package name. This change improves clarity and consistency within the project.
482 lines
18 KiB
Python
482 lines
18 KiB
Python
"""
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Model Monitoring Repository
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This module contains the ModelMonitoringRepository class,
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which is responsible for handling the communication with the Model Monitoring API.
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It includes the methods that are used to answer ModelMonitoringService
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requests using the Model Monitoring API functions.
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By Monitoring we mean the evaluation of the performance of models, the generation of reports.
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"""
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from datetime import datetime
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import traceback
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import pandas as pd
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import mlflow
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from os import makedirs, path, remove
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from sientia.ModelServing import ModelServing
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from sientia_do.temporal.constants import DATETIME_FORMAT_WITH_TZ
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from sientia_do.observability.logger import Logger
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class MLFlowRepository():
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def __init__(self, host, username, password, logger: Logger):
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self.model_serving = ModelServing(tracking_uri=host,
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username=username, password=password,
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logger=logger)
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self.logger = logger
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def detect_and_parse_datetime_index(self, data: pd.DataFrame, metadata: dict) -> pd.DataFrame:
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"""
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Detect and parse datetime index from data. index must be a timestamp like column.
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This function must detect the timestamp type (pandas Timestamp or datetime) and convert it to DATETIME_FORMAT_WITH_TZ.
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If the index is a string, must be in format DATETIME_FORMAT_WITH_TZ.
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If another type or format, must raise an error.
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"""
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index = data.index
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# Get type of first element of index
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index_type = type(index[0])
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self.logger.custom_info(f"Index type: {index_type}", metadata)
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message = f"Index must be all timestamp like column. Valid formats are: pandas Timestamp, datetime, string in format {DATETIME_FORMAT_WITH_TZ}"
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# Check if all in index are of the same type
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if not all(isinstance(i, index_type) for i in index):
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raise ValueError(
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f"{message}")
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# Check type and converts to DATETIME_FORMAT_WITH_TZ
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if index_type == str:
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# Validate format of string and return error if not valid
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try:
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pd.to_datetime(data.index, format=DATETIME_FORMAT_WITH_TZ)
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except ValueError:
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raise ValueError(
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f"{message}")
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elif index_type == datetime or index_type == pd.Timestamp:
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data.index = data.index.strftime(DATETIME_FORMAT_WITH_TZ)
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else:
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raise ValueError(
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f"{message}")
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return data
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def transform(self, model_name: str, data: pd.DataFrame, model_config: dict, metadata: dict) -> dict:
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"""
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Transform data using a model.
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Parameters:
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- model_name (str): The name of the model to use for transformation.
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- data (pandas.DataFrame): The data to transform.
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- model_retention (int): The number of minutes to keep the model.
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Returns:
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- dict: A dictionary containing the transformed data.
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"""
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try:
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self.logger.custom_debug(
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f"Data received for model transformation: {data.to_csv()}", metadata)
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model_retention = model_config.get('retention_minutes', 0)
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flavor = model_config.get('transform_flavor', 'sklearn')
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compressed = model_config.get('is_compressed', False)
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retention_target = model_config.get('retention_target', 'model')
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transform_keyword = model_config.get(
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'transform_function_keyword', 'predict')
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transformed_data = self.model_serving.get_cached_transform(
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model_name, data, model_retention, flavor,
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compressed, retention_target, transform_keyword
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)
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self.logger.custom_debug(
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f"Data received from model transformation: {transformed_data.to_csv()}", metadata)
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transformed_data = self.detect_and_parse_datetime_index(
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transformed_data, metadata)
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return {
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'success': True,
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'content': transformed_data.to_dict()
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}
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except Exception as e:
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return {
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'success': False,
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'content': {
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'message': str(e),
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'traceback': traceback.format_exc()
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}
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}
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def predict(self, model_name: str, data: pd.DataFrame, model_config: dict, metadata: dict) -> dict:
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"""
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Predict data using a model.
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Parameters:
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- model_name (str): The name of the model to use for prediction.
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- data (pandas.DataFrame): The data to predict.
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- model_retention (int): The number of minutes to keep the model.
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Returns:
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- dict: A dictionary containing the predicted data.
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"""
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try:
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model_retention = model_config.get('retention_minutes', 0)
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flavor = model_config.get('predict_flavor', 'pyfunc')
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compressed = model_config.get('is_compressed', False)
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retention_target = model_config.get('retention_target', 'model')
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input_index = data.index
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start_time = datetime.now()
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self.logger.custom_debug(
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f"Data received for model prediction: {data.to_csv()}", metadata)
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data = self.model_serving.get_cached_predict(
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model_name, data, model_retention, flavor,
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compressed, retention_target
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)
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end_time = datetime.now()
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data = pd.DataFrame(data, columns=['prediction'])
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self.logger.custom_debug(
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f"Data received from model prediction: {data.to_csv()}", metadata)
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data.index = input_index
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data['response_time'] = (end_time - start_time).total_seconds()
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return {
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'success': True,
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'content': data.to_dict()
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}
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except Exception as e:
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return {
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'success': False,
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'content': {
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'message': str(e),
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'traceback': traceback.format_exc()
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}
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}
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def get_experiment_by_run_id(self, run_id: str) -> dict:
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# Get the run information using the run_id
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run = mlflow.get_run(run_id)
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# Extract the experiment ID from the run
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experiment_id = run.info.experiment_id
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# Get the experiment details using the experiment ID
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experiment = mlflow.get_experiment(experiment_id)
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experiment_name = experiment.name
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return experiment_name
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def get_next_run_name(self, model_name: str) -> str:
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"""
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Generate the next run name for a specific MLFlow model.
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This method calculates the next sequential run number for a model
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by searching existing runs and incrementing the count. It ensures
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unique run names for model training and retraining operations.
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Args:
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model_name (str): The name of the MLFlow model
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Returns:
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str: The next run name in format 'model_name-run_number'
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"""
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runs = mlflow.search_runs(
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experiment_names=[model_name], order_by=["start_time desc"])
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next_run_number = len(runs) + 1
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return f"{model_name}-{next_run_number}"
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def create_model_experiment(self, model_name: str, data: pd.DataFrame) -> tuple:
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"""
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Create a new MLFlow experiment for model retraining.
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This method sets up the complete environment for model retraining by:
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1. Loading the current production prediction model
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2. Loading the current production transformation model
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3. Fitting the transformation model with new data
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4. Preparing data for prediction model retraining
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5. Setting up the MLFlow experiment context
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Args:
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model_name (str): Name of the MLFlow model to retrain
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data (pd.DataFrame): Training data for model retraining
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Returns:
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tuple: (prediction_model, data_model, experiment)
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- prediction_model: Loaded prediction model for retraining
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- data_model: Fitted transformation model
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- experiment: MLFlow experiment name
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"""
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# load predictor model
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predictor_uri = f"models:/{model_name}/production"
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# load transform model
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latest_production_id = self.model_serving.get_model_run_id(
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model_name, stage="Production"
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)
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transform_uri = self.model_serving.get_model_uri(
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latest_production_id, prediction=False
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)
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# load
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data_model = mlflow.sklearn.load_model(transform_uri)
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prediction_model = mlflow.sklearn.load_model(predictor_uri)
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data_model = data_model.fit(data)
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treated_data = data_model.predict(data)
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target_name = data_model.target_variable
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y = data[target_name]
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treated_data = pd.merge(
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treated_data, y, left_index=True, right_index=True)
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prediction_model = prediction_model.fit(treated_data)
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experiment = self.get_experiment_by_run_id(latest_production_id)
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mlflow.set_experiment(experiment)
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return prediction_model, data_model, experiment
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def perform_model_retrain(self,
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prediction_model,
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data_model,
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experiment: str,
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model_name: str,
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data: pd.DataFrame):
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"""
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Execute the complete model retraining process in MLFlow.
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This method performs the actual model retraining by:
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1. Starting a new MLFlow run with descriptive metadata
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2. Logging model parameters and hyperparameters
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3. Retraining both prediction and transformation models
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4. Logging training data as artifacts
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5. Saving retrained models to MLFlow registry
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Args:
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prediction_model: MLFlow prediction model to retrain
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data_model: MLFlow transformation model to retrain
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experiment (str): MLFlow experiment name for the retraining
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model_name (str): Name of the model being retrained
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data (pd.DataFrame): Training data used for retraining
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Returns:
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tuple: (status_message, experiment_name)
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- status_message (str): Success confirmation message
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- experiment_name (str): Name of the experiment
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"""
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pred_model_atributes = vars(prediction_model) # load class attributes
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data_model_atributes = vars(data_model) # load class attributes
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experiment_description = f"Retrain model {model_name} with new data"
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current_run_name = self.get_next_run_name(experiment)
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with mlflow.start_run(
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run_name=current_run_name, description=experiment_description
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) as _run:
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# update transfomation model
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# fixed parameters
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for name_atribute, val_atribute in pred_model_atributes.items():
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if name_atribute != "model":
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mlflow.log_param(name_atribute, val_atribute)
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# update prediction model
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for name_atribute, val_atribute in data_model_atributes.items():
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if name_atribute != "model":
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mlflow.log_param(name_atribute, val_atribute)
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# dynamic parameters, including model itself
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mlflow.sklearn.log_model(data_model, "data_model")
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makedirs("temp", exist_ok=True)
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file_path = f"temp/raw_data_{model_name}.csv"
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data.to_csv(file_path, index=True)
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# log the data raw
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mlflow.log_artifact(file_path)
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# dynamic parameters, including model itself
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mlflow.sklearn.log_model(prediction_model, "prediction_model")
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mlflow.log_param("retrain", True)
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# clear temp file
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if path.exists(file_path):
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remove(file_path)
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return "Model retrained successfully", experiment
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def retrain_model(self, data: pd.DataFrame, model_name: str) -> tuple:
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"""
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Orchestrate the complete model retraining workflow.
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This method coordinates the entire model retraining process by:
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1. Creating the MLFlow experiment environment
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2. Loading existing production models
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3. Executing the retraining process
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4. Returning comprehensive retraining results
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Args:
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data (pd.DataFrame): Training data for model retraining
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model_name (str): Name of the MLFlow model to retrain
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Returns:
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tuple: (status_message, experiment_name)
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- status_message (str): Retraining operation status
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- experiment_name (str): MLFlow experiment identifier
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"""
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prediction_model, data_model, experiment = self.create_model_experiment(
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model_name, data)
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retrain_result = self.perform_model_retrain(
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prediction_model, data_model, experiment, model_name, data)
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return retrain_result
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def get_experiment(self, experiment_name: str) -> int:
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"""
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Retrieve MLFlow experiment ID by experiment name.
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This method searches for an MLFlow experiment by name and
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returns its unique identifier. It provides error handling
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for non-existent experiments.
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Args:
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experiment_name (str): Name of the MLFlow experiment
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Returns:
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int: MLFlow experiment ID
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Raises:
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ValueError: If the experiment name is not found
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"""
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experiment = mlflow.get_experiment_by_name(experiment_name)
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if experiment is None:
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raise ValueError(f'Experiment {experiment_name} not found')
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return int(experiment.experiment_id)
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def get_experiment_last_run(self, experiment_id: int) -> str:
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"""
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Retrieve the most recent retraining run ID for an experiment.
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This method searches for the latest run in an MLFlow experiment
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that has been marked as a retraining run. It filters runs by
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the 'retrain' parameter and orders them by completion time.
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Args:
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experiment_id (int): MLFlow experiment ID
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Returns:
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str: MLFlow run ID of the most recent retraining run
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Raises:
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ValueError: If runs data is not in expected DataFrame format
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"""
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runs = mlflow.search_runs(
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experiment_ids=[experiment_id],
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filter_string="", # Sem filtro no MLflow ainda
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output_format="pandas"
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)
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if not isinstance(runs, pd.DataFrame):
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raise ValueError('Runs is not a pandas DataFrame')
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# Filtrar apenas as runs onde params.retrain == True
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filtered_runs = runs[runs["params.retrain"] == 'True']
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# Converter a coluna 'end_time' para datetime
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filtered_runs['end_time'] = pd.to_datetime(filtered_runs['end_time'])
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# Ordenar o DataFrame de forma descendente pela coluna 'end_time'
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filtered_runs = filtered_runs.sort_values(
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by='end_time', ascending=False)
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# Pegar a última run_id do DataFrame filtrado e ordenado
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latest_run_id = filtered_runs.iloc[0]['run_id']
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return latest_run_id
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def update_production_model_by_run_id(self, run_id: str, model_name: str) -> dict:
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"""
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Update production model with a specific MLFlow run.
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This method promotes a model from a specific MLFlow run to
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production stage. It handles model registration, versioning,
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and stage transitions with proper error handling.
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Args:
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run_id (str): MLFlow run ID containing the model to promote
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model_name (str): Name of the MLFlow model
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Returns:
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dict: Model update metadata containing:
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- model_name (str): Name of the updated model
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- version (str): New model version number
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- mlflow_run_id (str): Source run ID
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Update Process:
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1. Registers the model from the specified run
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2. Retrieves the latest model version
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3. Transitions the model to 'Production' stage
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4. Archives existing production versions
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"""
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# Registrar o modelo
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# Aqui estamos assumindo que você já tem um modelo salvo, caso contrário você precisará treiná-lo e salvá-lo primeiro.
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# Se o modelo já está registrado, você pode usar o método register_model() ou pyfunc.load_model() para isso.
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mlflow.register_model(
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f"runs:/{run_id}/prediction_model", model_name)
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# Colocar a versão do modelo em produção
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# Depois de registrar o modelo, precisamos pegar a versão mais recente do modelo e movê-lo para o estágio 'Production'
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client = mlflow.tracking.MlflowClient()
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# Obter a versão mais recente registrada do modelo
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model_versions = client.get_registered_model(
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model_name).latest_versions
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if not isinstance(model_versions, list):
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raise ValueError('Model versions is not a list')
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max_version = max(model_versions, key=lambda x: int(x.version)).version
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# Mover a versão mais recente do modelo para o estágio de 'Production'
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client.transition_model_version_stage(
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name=model_name,
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version=max_version,
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stage="Production",
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archive_existing_versions=True
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)
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return {
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'model_name': model_name,
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'version': max_version,
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'mlflow_run_id': run_id
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}
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def update_production_model(self, experiment: str, model_name: str) -> dict:
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"""
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Update production model using the latest retraining run.
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This method orchestrates the complete production model update
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process by identifying the most recent retraining run and
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promoting it to production stage.
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Args:
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experiment (str): MLFlow experiment name
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model_name (str): Name of the MLFlow model
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Returns:
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dict: Complete model update metadata containing:
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- model_name (str): Name of the updated model
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- version (str): New model version number
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- mlflow_run_id (str): Source run ID
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- mlflow_experiment_id (int): Experiment ID
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"""
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experiment_id = self.get_experiment(experiment)
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run_id = self.get_experiment_last_run(experiment_id)
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metadata = self.update_production_model_by_run_id(run_id, model_name)
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metadata['mlflow_experiment_id'] = experiment_id
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return metadata
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