What is the SOLR database for?

Apache Solr is integrated into the Check Point SmartEvent and Log Server architecture specifically to provide full-text search and indexing; it enables powerful query matching and filtering across large volumes of log records, but does not act as the primary database for writing log data - that responsibility belongs to a separate backend database component.

SOLR does not write log data to the database - log ingestion and writing are handled by a separate component (such as the DLE or SQLite layer); SOLR only indexes data for search purposes.

Serving GUI requests and proxying them to the DLE server is the role of the web/API server layer in the SmartEvent architecture, not SOLR, which is a backend indexing and search service.

While SOLR does enable powerful matching, it does not write data to the database; combining both functions misrepresents its role, which is limited to search and indexing.