zoukankan      html  css  js  c++  java
  • [AWS DA] AWS Monitoring & Audit: CloudWatch, X-Ray and CloudTrail

    CloudWatch

    CloudWath Metrics

    • Default every 5 mins

    EC2 Detailed monitoring

    • Get data every 1 mins
    • Free Tier allow to have 10 details monitoring metrics

    [Note]: EC2 Memory usage is by default not pushed (if must be pushed, from inside the instance as a csutom metric)

    Custom Metrics

    • Possibility to define and send your own custom metrics to CloudWatch
    • Metric resolution:
      • Standard: 1 min
      • High Resolution: up to 1 second
      • StorageResolution API paramter
    • Use API call PutMetricData
    • Use Exponential back off in case of throttle errors

     

    CloudWatch Alarms

    • Alarms are used to trigger notifications for any metric
    • Alarms can go to Auto Scaling, EC2 Actions, SNS notifications
    • Alarms States: OK, INSUFFICIENT_DATA, ALARM
    • Period: High Resolution custom metrics: can only choose 10 sec or 30 sec

     

    CloudWatch Logs

    • Can define log expiration policies (by default never expire, 30 days ...)
    • Make sure IAM permissions are correct
    • Security, encrypted by KMS at the group level
    • You are able to do search for logs
    • Other actions can do

    EventBridge

    X-Ray

    Compatibility

    • Lambda
    • Elastic Beanstalk
    • ECS
    • ELB
    • API Gateway
    • EC2 Instances or any applciation server
    • ...

    Enable X-Ray

    Enabled X-Ray in ElasticBeanstalk

    Concepts

    • Segments: each application / service will send the them
    • Subsegments: if you need more details in your segment
    • Trace: segments collected together to form an end-to-end trace
    • Sampling: decrease the amount of requests send to X-Ray, reduce costs
    • Annotations: Key Value pairs, used to index / search traces and use with filter
    • Metadata: Key Value paris, not indexed, not used for searching

    • PutTraceSegements: most important one, enable x-ray send data to server
    • PutTelemetryRecords
    • GetSamplingRules: also write to x-ray
    • GetSamplingStaticSummaries
    • GetSamplingTargets

    There are two ways to run X-Ray on ECS instances.

    1. Well-known one is deploy X-Ray daemon on an own docker container pre EC2 instance

    2. "Side Car", deploy X-Ray daemon container along side Application container, each app with one x-ray daemon.

    3. For Fargate, use side car approach

    On ECS, main thing to remember for Exam is that

    • You need to map x-ray port: 2000
    • and protocal: udp

  • 相关阅读:
    第八章 采样
    第七章 优化算法
    第六章 概率图模型
    第五章 非监督学习
    第四章 降维
    第三章 经典算法
    第二章 模型评估
    第一章 特征工程-------------《百面机器学习》
    中等-102,107-二叉树的层序遍历
    字符串单模式匹配 暴力+哈希
  • 原文地址:https://www.cnblogs.com/Answer1215/p/14839578.html
Copyright © 2011-2022 走看看