Events From different AWS Services

• Refer Here for the documentation

CloudWatch Logs

• Log can be defined as documentation of the event.
• To be able to monitor and draw insights from data, we need to collect the insights, aggregate and make it meaningful
• Life cycle of a log:
  • Collection/Extraction:
    • Logs need to be collected from source to the central location which will be responsible for storing the data.
    • The Collection of logs is done using a log Agent which is a daemon process that helps to extract logs from a specific location.
    • Amazon CloudWatch has an agent which can be installed on multiple OS (Linux or Windows) and it can send them over to CloudWatch for Storage
  • Storage:
    • Once the logs are collected, they need to be stored in particular location (database, filesystem, storage service)
    • The data that is collected is going to be large, so storage needs to be realiable, scalable and highly available.
    • CloudWatch logs is a solution that meedts all the requirements for storing data & more.
    • When you use CloudWatch to store your infra & application logs, you do not have to worry anout the capacity of storage & availability of storage service.
    • Cloud Watch logs also have sum extra features such as log retention policy.
    • CloudWatch logs have a feature of archiving logs to S3 or Glacier.
  • Analytics:
    • Analyzing logs is all about to make sense of the data which we have collected.
    • Cloud Watch Logs have the query feature
    • Cloud Watch helps in doing aggregations on the log data collected