add test log

[ascend-direct-dev]

Description

Type of Change

• Types
  • Bug fix
  • New feature
    • Transfer Engine
    • Mooncake Store
    • Mooncake EP
    • Integration
    • P2P Store
    • Python Wheel
  • Breaking change
  • CI/CD
  • Documentation update
  • Other

How Has This Been Tested?

Checklist

• I have performed a self-review of my own code.
• I have updated the documentation.
• I have added tests to prove my changes are effective.

[gemini-code-assist]

Summary of Changes

Hello @ascend-direct-dev, I'm Gemini Code Assist¹! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!

This pull request focuses on improving the observability of the data transfer process by integrating additional informational log statements at critical stages. These new logs will provide clearer insights into when transfer batches are submitted, queued, and executed, which will be invaluable for debugging and monitoring the flow of data within the system.

Highlights

• Enhanced Logging for Transfer Submission: Added an informational log message in mooncake-store/src/transfer_task.cpp to indicate when a transfer batch is being submitted, including the batch ID and the process ID.
• Improved Logging for Transfer Engine Queueing: Introduced a log message in mooncake-transfer-engine/src/transport/ascend_transport/ascend_direct_transport/ascend_direct_transport.cpp when a batch ID is pushed to the slice queue, aiding in tracking transfer progress.
• Detailed Logging for Transfer Connection and Execution: Added two new log messages within mooncake-transfer-engine/src/transport/ascend_transport/ascend_direct_transport/ascend_direct_transport.cpp: one at the start of the connectAndTransfer function to show the target engine and process ID, and another just before calling TransferSync to mark the beginning of the synchronous transfer operation.

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[gemini-code-assist]

Code Review

This pull request adds several LOG(INFO) statements across different files. Based on the PR title 'add test log' and the content of the logs (e.g., including process IDs), these appear to be for debugging purposes. While useful for development, LOG(INFO) statements can create a lot of noise in production logs. It is recommended to convert these to verbose logs using VLOG(1), which is already in use in the codebase. This allows the logs to be enabled for debugging without affecting production environments.

[gemini-code-assist]

This LOG(INFO) statement appears to be for debugging, as suggested by the PR title. To avoid cluttering production logs, it's better to use verbose logging. Consider changing this to VLOG(1), which allows these logs to be enabled only when needed for debugging.

Suggested change

	LOG(INFO) << "Submitting transfer batch " << batch_id
	<< " pid:" << getpid();
	VLOG(1) << "Submitting transfer batch " << batch_id
	<< " pid:" << getpid();

[gemini-code-assist]

This LOG(INFO) statement seems to be for debugging purposes. To prevent noisy logs in production, please use a verbose logging level like VLOG(1). This will allow you to enable these logs on demand for debugging without affecting the default log output.

Suggested change

	LOG(INFO) << "Push batch id:" << batch_id << " to slice queue";
	VLOG(1) << "Push batch id:" << batch_id << " to slice queue";

[gemini-code-assist]

The inclusion of the process ID (pid) in this log message strongly suggests it's intended for debugging. LOG(INFO) should be reserved for information that is generally useful. For debugging-specific logs, please use VLOG(1) to keep production logs clean.

Suggested change

	LOG(INFO) << "Start transfer to " << target_adxl_engine_name
	<< " pid:" << getpid();
	VLOG(1) << "Start transfer to " << target_adxl_engine_name
	<< " pid:" << getpid();

[gemini-code-assist]

This LOG(INFO) statement appears to be a debug log for tracing execution flow. It's recommended to use verbose logging, such as VLOG(1), for this kind of message. This helps in keeping the production logs concise and focused on important events.

Suggested change

	LOG(INFO) << "Start call TransferSync to " << target_adxl_engine_name;
	VLOG(1) << "Start call TransferSync to " << target_adxl_engine_name;