Amazon CloudWatch Logs Insights introduces JOIN and sub-query commands to the Logs Insights query language to accelerate log analysis. Customers who need to analyze logs across multiple log groups or correlate data from different sources no longer need to run multiple queries and manually combine the results.
With JOIN and sub-query commands, you can accelerate troubleshooting across scenarios such as correlating application and infrastructure errors across different services and log groups, analyzing security events across multiple services, or tracking user sessions across distributed systems. For example, you can use a sub-query to identify services with more than 20 errors in the last day, then use JOIN to correlate those results with performance data from a different log group to calculate average response times, helping you prioritize which high-error services also have the worst performance impact — all in a single query.
JOIN and sub-query commands are available today in all commercial AWS Regions. To learn more, see the Amazon CloudWatch Logs documentation.
Categories: marketing:marchitecture/management-and-governance,general:products/amazon-cloudwatch-logs,general:products/amazon-cloudwatch
Source: Amazon Web Services
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