Month: July 2019

How to Log Cassandra Queries in Java Spring

Nick Russler

To enable logging for cassandra queries with Spring Data and the datastax driver you first need to register a QueryLogger instance with your cluster:

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QueryLogger queryLogger = QueryLogger.builder().build();
cluster.register(queryLogger);

You also need to specify the log levels for the QueryLogger in your properties:

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logging.level.com.datastax.driver.core.QueryLogger.NORMAL=DEBUG
logging.level.com.datastax.driver.core.QueryLogger.SLOW=DEBUG
logging.level.com.datastax.driver.core.QueryLogger.ERROR=DEBUG

While you might not always to turn logging on for NORMAL or even SLOW it can ease debugging a lot.