${host:}
${jetty.port:8983}
${hostContext:solr}
${genericCoreNodeNames:true}
${zkClientTimeout:30000}
${distribUpdateSoTimeout:600000}
${distribUpdateConnTimeout:60000}
${zkCredentialsProvider:org.apache.solr.common.cloud.DefaultZkCredentialsProvider}
${zkACLProvider:org.apache.solr.common.cloud.DefaultZkACLProvider}
${socketTimeout:600000}
${connTimeout:60000}