Troubleshooting Elasticsearch Installation
Liferay and Elasticsearch are complex systems full of configurations. When connecting them, you can run into difficulty along the way. Included below are techniques for troubleshooting.
To learn about some common issues and how to solve them, see
To troubleshoot the sidecar Elasticsearch server bundled with Liferay, see Troubleshooting the Sidecar/Embedded Elasticsearch.
Inspecting the Search Bar’s Elasticsearch Query
Liferay’s search infrastructure generates a large Elasticsearch request whenever users search from the Search Bar widget. To inspect the query sent to Elasticsearch, use the Search Insights widget. For more information see Search Insights.
Inspecting any Liferay-Generated Elasticsearch Query
To inspect any Elasticsearch query generated by Liferay, set the log level for com.liferay.portal.search.elasticsearch7.internal.ElasticsearchIndexSearcher to INFO level using the Server Administration Log Levels UI.
If you are on Liferay 7.1-7.2 and using the default bundled Connector to Elasticsearch 6, change the version number in the package name from 7 to 6.
Enabling Verbose SSL Logging
To troubleshoot encryption related issues, enable verbose SSL logging.
For Liferay, set -Djavax.net.debug=ssl:handshake:verbose in the Application Server’s JVM. In Tomcat the option is added to CATALINA_OPTS in setenv.sh:
CATALINA_OPTS="$CATALINA_OPTS -Djavax.net.debug=ssl:handshake:verbose"
For Elasticsearch, add -Djavax.net.debug=ssl:handshake:verbose to the end of [Elasticsearch Home]/config/jvm.options.