Configure Fusion Logging in Fusion 4.0 - Lucidworks documentation

Fusion uses the Apache Log4j 2 logging framework with Jetty to log each of the Fusion components. Logging is configured with an XML configuration file named log4j2.xml. Log levels, frequencies, and log rotation policy can be configured by changing these configuration files:


API service	`https://FUSION_HOST:FUSION_PORT/conf/api-log4j2.xml`
Connectors	`https://FUSION_HOST:FUSION_PORT/conf/connectors-classic-log4j2.xml` `https://FUSION_HOST:FUSION_PORT/conf/connectors-rpc-agent-log4j2.xml` `https://FUSION_HOST:FUSION_PORT/conf/connectors-rpc-log4j2.xml`
Solr	`https://FUSION_HOST:FUSION_PORT/conf/solr-log4j2.xml`
Spark	`https://FUSION_HOST:FUSION_PORT/conf/spark-driver-launcher-log4j2.xml` `https://FUSION_HOST:FUSION_PORT/conf/spark-driver-log4j2.xml` `https://FUSION_HOST:FUSION_PORT/conf/spark-driver-scripted-log4j2.xml` `https://FUSION_HOST:FUSION_PORT/conf/spark-master-agent-log4j2.xml` `https://FUSION_HOST:FUSION_PORT/conf/spark-master-log4j2.xml` `https://FUSION_HOST:FUSION_PORT/conf/spark-worker-agent-log4j2.xml` `https://FUSION_HOST:FUSION_PORT/conf/spark-worker-log4j2.xml`
SQL	`https://FUSION_HOST:FUSION_PORT/conf/sql-agent-log4j2.xml` `https://FUSION_HOST:FUSION_PORT/conf/sql-log4j2.xml`
UI	`https://FUSION_HOST:FUSION_PORT/conf/admin-ui-log4j2.xml`
ZooKeeper	`https://FUSION_HOST:FUSION_PORT/conf/zk-log4j2.xml`
Other Fusion services	`https://FUSION_HOST:FUSION_PORT/conf/proxy-log4j2.xml`

The Log4j2 Configuration guide provides documentation and examples of all logging configuration options.