sorry, find info about it on https://www.elastic.co/guide/en/logstash/current/plugins-inputs-file.html
stop logstash and now i remove sincedb after find it on:
[root@rv03prd reversal]# find / -name .sincedb*
/var/lib/logstash/plugins/inputs/file/.sincedb_79a16c88523e2ae2caee8f60623d8fbc
[root@rv03prd reversal]# sudo rm -f /var/lib/logstash/plugins/inputs/file/.sincedb_79a16c88523e2ae2caee8f60623d8fbc
[root@rv03prd reversal]#
start logstash again but cant find any "logstash*" index