I have a common problem with other people about opening file with logstash 5.2. I work on RH 7.1 with rpm packages.
[logstash.inputs.file ] Reached open files limit: 4095, set by the 'max_open_files' option or default, files yet to open: 16655
I don't find the variable to change this. I have put 5 file input in logstash's conf.
In "/etc/logstash/startup.options", i see :
#Open file limit LS_OPEN_FILES=16384
Where growing limit ?
On RH System i test commands :
[root]#ulimit -n 81296 [root]# ulimit unlimited