I had an issue where the disk that Elasticsearch was writing to was getting full.
I spotted that there were messages in elasticsearch logfile warning that the file system it was using was 90% full. (high disk watermark exceeded on ...) So I have moved /var/lib/elasicsearch to another partition with more space. I have restarted both elasticsearch and logstash but not seeing any more recent data. Do I have to do anything else to get it back working again?
Is there an easy way to tell if logstash and elasticsearch are collecting and storing data ok?