Apache Solr Reference Guide Covering Apache Solr 6.0

name=my_core_name
Placement of core.properties
Solr cores are configured by placing a file named core.properties in a sub-directory under solr.home.
There are no a-priori limits to the depth of the tree, nor are there limits to the number of cores that can be
defined. Cores may be anywhere in the tree with the exception that cores may not be defined under an existing
core. That is, the following is not allowed:
./cores/core1/core.properties
./cores/core1/coremore/core5/core.properties
In this example, the enumeration will stop at "core1".
The following is legal:
./cores/somecores/core1/core.properties
./cores/somecores/core2/core.properties
./cores/othercores/core3/core.properties
./cores/extracores/deepertree/core4/core.properties
It is possible to segment Solr into multiple cores, each with its own configuration and indices. Cores may be
dedicated to a single application or to very different ones, but all are administered through a common
administration interface. You can create new Solr cores on the fly, shutdown cores, even replace one running
core with another, all without ever stopping or restarting Solr.
Your core.properties file can be empty if necessary. Suppose core.properties is located in ./cores/c
ore1 (relative to solr_home ) but is empty. In that case, the core name is assumed to be "core1". The
instanceDir will be the folder containing core.properties (i.e., ./cores/core1). The dataDir will be ../cor
es/core1/data, etc.
You can run Solr without configuring any cores.
Defining core.properties Files
The minimal core.properties file is an empty file, in which case all of the properties are defaulted
appropriately.
Java properties files allow the hash ("#") or bang ("!") characters to specify comment-to-end-of-line.
This table defines the recognized properties:
name
Property
Description
The name of the SolrCore. You'll use this name to reference the SolrCore when running
commands with the CoreAdminHandler.
config The configuration file name for a given core. The default is solrconfig.xml.
Apache Solr Reference Guide 6.0
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