We come to decision, we need restart webapp for new results appeared in search. How to this correctly without restarting tomcat?
After long work of tomcat, we have "too many open files" error. May be this is result of restarting of webapp by touch command on web.xml? By now before tomcat starting, we setting "max number open files" parameter to 4096 (1024 by default), but we think it is not right decision.