installed solr

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+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+
+Default Solr Home Directory
+=============================
+
+This directory is the default Solr home directory which holds
+configuration files and Solr indexes (called cores).
+
+
+Basic Directory Structure
+-------------------------
+
+The Solr Home directory typically contains the following...
+
+* solr.xml *
+
+This is the primary configuration file Solr looks for when starting;
+it specifies high-level configuration options that apply to all
+of your Solr cores, such as cluster-wide SolrCloud settings like
+the ZooKeeper client timeout.
+
+In addition, you can also declare Solr cores in this file, however
+it is recommended to just use automatic core discovery instead of
+listing cores in solr.xml.
+
+If no solr.xml file is found, then Solr assumes that there should be
+a single SolrCore named "collection1" and that the "Instance Directory"
+for collection1 should be the same as the Solr Home Directory.
+
+For more information about solr.xml, please see:
+https://lucene.apache.org/solr/guide/solr-cores-and-solr-xml.html
+
+* Individual SolrCore Instance Directories *
+
+Although solr.xml can be configured to look for SolrCore Instance Directories
+in any path, simple sub-directories of the Solr Home Dir using relative paths
+are common for many installations.
+
+* Core Discovery *
+
+During startup, Solr will scan sub-directories of Solr home looking for
+a specific file named core.properties. If core.properties is found in a
+sub-directory (at any depth), Solr will initialize a core using the properties
+defined in core.properties. For an example of core.properties, please see:
+
+example/solr/collection1/core.properties
+
+For more information about core discovery, please see:
+https://lucene.apache.org/solr/guide/defining-core-properties.html
+
+* A Shared 'lib' Directory *
+
+Although solr.xml can be configured with an optional "sharedLib" attribute
+that can point to any path, it is common to use a "./lib" sub-directory of the
+Solr Home Directory.
+
+* ZooKeeper Files *
+
+When using SolrCloud using the embedded ZooKeeper option for Solr, it is
+common to have a "zoo.cfg" file and "zoo_data" directories in the Solr Home
+Directory.  Please see the SolrCloud documentation for more details.
+
+https://lucene.apache.org/solr/guide/solrcloud.html