Home

Awesome

Log-based Anomaly Detection with Deep Learning: How Far Are We?

Under extension. Please refer the dev branch.

Abstract: Software-intensive systems produce logs for troubleshooting purposes. Recently, many deep learning models have been proposed to automatically detect system anomalies based on log data. These models typically claim very high detection accuracy. For example, most models report an F-measure greater than 0.9 on the commonly-used HDFS dataset. To achieve a profound understanding of how far we are from solving the problem of log-based anomaly detection, in this paper, we conduct an in-depth analysis of five state-of-the-art deep learning-based models for detecting system anomalies on four public log datasets. Our experiments focus on several aspects of model evaluation, including training data selection, data grouping, class distribution, data noise, and early detection ability. Our results point out that all these aspects have significant impact on the evaluation, and that all the studied models do not always work well. The problem of log-based anomaly detection has not been solved yet. Based on our findings, we also suggest possible future work. This repository provides the implementation of recent log-based anomaly detection methods.

Studied Models

ModelPaper
DeepLogDeepLog: Anomaly Detection and Diagnosis from System Logs through Deep Learning
LogAnomalyLogAnomaly: Unsupervised Detection of Sequential and Quantitative Anomalies in Unstructured Logs
PLELogSemi-Supervised Log-Based Anomaly Detection via Probabilistic Label Estimation
LogRobustRobust log-based anomaly detection on unstable log data
CNNDetecting Anomaly in Big Data System Logs Using Convolutional Neural Network

Requirements

The required packages are listed in requirements.txt. Install:

pip install -r requirements.txt

Demo

python main_run.py --folder=bgl/ --log_file=BGL.log --dataset_name=bgl --model_name=deeplog --window_type=sliding
 --sample=sliding_window --is_logkey --train_size=0.8 --train_ratio=1 --valid_ratio=0.1 --test_ratio=1 --max_epoch=100
 --n_warm_up_epoch=0 --n_epochs_stop=10 --batch_size=1024 --num_candidates=150 --history_size=10 --lr=0.001
 --accumulation_step=5 --session_level=hour --window_size=60 --step_size=60 --output_dir=experimental_results/demo
/random/ --is_process
python main_run.py --help

Citation

If you find the code and models useful for your research, please cite the following paper:

@inproceedings{le2022log,
  title={Log-based Anomaly Detection with Deep Learning: How Far Are We?},
  author={Le, Van-Hoang and Zhang, Hongyu},
  booktitle={2022 IEEE/ACM 43rd International Conference on Software Engineering (ICSE)},
  year={2022}
}