This directory contains an instance of the Jetty Servlet container setup to run Solr.
To run Solr:
cd $SOLR_INSTALL bin/solr start
where $SOLR_INSTALL is the location where you extracted the Solr installation bundle.
server/contexts
  This directory contains the Jetty Web application deployment descriptor for the Solr Web app.
server/etc
  Jetty configuration and example SSL keystore
server/lib
  Jetty and other 3rd party libraries
server/logs
  Solr log files
server/resources
  Contains configuration files, such as the Log4j configuration (log4j2.xml) for configuring Solr loggers.
server/scripts/cloud-scripts
  Command-line utility for working with ZooKeeper when running in SolrCloud mode, see zkcli.sh / .cmd for
  usage information.
server/solr
  Default solr.solr.home directory where Solr will create core directories; must contain solr.xml
server/solr/configsets
  Directories containing different configuration options for running Solr.
    _default                    : Bare minimum configurations with field-guessing and managed schema turned
                                  on by default, so as to start indexing data in Solr without having to design
                                  a schema upfront. You can use the REST API to manage your schema as you refine your index
                                  requirements. You can turn off the field (for a collection, say mycollection) guessing by:
                                  curl http://host:8983/solr/mycollection/config -d '{"set-user-property": {"update.autoCreateFields":"false"}}'
    sample_techproducts_configs : Comprehensive example configuration that demonstrates many of the powerful
                                  features of Solr, based on the use case of building a search solution for
                                  tech products.
server/solr-webapp
  Contains files used by the Solr server; do not edit files in this directory (Solr is not a Java Web application).
By default, start.jar starts Solr in Jetty using the default Solr Home directory of “./solr/” (relative to the working directory of the servlet container).
Various example SolrHome dirs contained in this directory may use “” statements in the solrconfig.xml file to reference plugin jars outside of this directory for loading “contrib” plugins via relative paths.
If you make a copy of this example server and wish to use the ExtractingRequestHandler (SolrCell), DataImportHandler (DIH), the clustering component, or any other modules in “contrib”, you will need to copy the required jars or update the paths to those jars in your solrconfig.xml.
By default, Jetty & Solr will log to the console and logs/solr.log. This can be convenient when first getting started, but eventually you will want to log just to a file. To configure logging, edit the log4j2.xml file in “resources”.
It is also possible to setup log4j or other popular logging frameworks.