9.8 ${solr.data.dir:} ${solr.lock.type:native} ${solr.ulog.dir:} ${solr.ulog.numVersionBuckets:65536} ${solr.autoCommit.maxTime:15000} false ${solr.autoSoftCommit.maxTime:-1} ${solr.max.booleanClauses:1024} true 20 200 false explicit 10 explicit json true _text_