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Full Query Logging

Learn how to enable full query logging in Cassandra and how to read the logs with fqltool


Cassandra 4.x full query logging enables you to get the exact CQL query strings used by your client applications. This information can be used for:

  • Analyzing poorly performing queries
  • Debugging queries that are producing incorrect results
  • Live traffic capture and replay
  • Troubleshooting/Debugging

In this scenario you will:

  • Enable and disable full query logging statically (in cassandra.yaml) and dynamically (using nodetool).
  • Learn features of the full query logging tool fqltool
  • Read and interpret full query logs

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