The online memory has been eaten up too much recently, and then adjust the log level of solr and only print error. I talked about the deployment of solr earlier, so I won't repeat it here. tomcat-solr/webapps/solr/WEB-INF/classes/log4j.properties.
Open log4j.properties and change the INFO in the original log4j.rootLogger= INFO, file, CONSOLE to error. Restart solr's tomcat, the original solr print information has been filtered out, only the error log will be printed