基于Fluentd的模型日志收集系统配置
环境准备
首先安装Fluentd:
sudo apt-get install -y td-agent
核心配置文件
在/etc/td-agent/td-agent.conf中添加以下配置:
# 模型推理日志收集
<source>
@type tail
path /var/log/model/inference.log
pos_file /var/log/td-agent/inference.pos
tag model.inference
read_from_head true
format json
</source>
# 模型训练日志收集
<source>
@type tail
path /var/log/model/training.log
pos_file /var/log/td-agent/training.pos
tag model.training
read_from_head true
format json
</source>
# 性能监控指标
<source>
@type monitor_agent
tag model.metrics
interval 30s
</source>
# 输出到Elasticsearch
<match model.**>
@type elasticsearch
host localhost
port 9200
logstash_format true
logstash_prefix model
</match>
关键监控指标
- 推理延迟:
response_time> 500ms 告警 - 模型准确率:
accuracy< 0.85 告警 - 内存使用率:
memory_usage> 85% 告警 - CPU使用率:
cpu_usage> 90% 告警
告警配置
创建告警规则文件/etc/td-agent/alert_rules.conf:
# 推理延迟告警
<filter model.inference>
@type grep
<regexp>
key response_time
pattern /^\d+$/
</regexp>
</filter>
# 性能异常检测
<filter model.training>
@type record_transformer
<record>
alert_level ${if (record['accuracy'] < 0.85) "HIGH" else "NORMAL"}
</record>
</filter>
验证配置
重启服务并测试:
sudo systemctl restart td-agent
sudo systemctl status td-agent
通过Kibana验证日志是否正常收集。

讨论