We are running Sonaqube 8.3.1.
We are experiencing error due to low space on disk for the search engine elastic base :
2020.08.06 11:13:32 INFO es[o.e.c.r.a.DiskThresholdMonitor] low disk watermark [85%] exceeded on [zKwFyDNtT4GiOkoHjmtnrQ][sonarqube][/opt/sonarqube-8.3.1/data/es6/nodes/0] free: 223.8mb[10.9%], replicas will not be assigned to this node
We are going to change our filesystem management to avoid this problem. How can we estimate the size needed for the elastic base ?
As this action is not going to be fast, is there a way to recover quickly some space by clearing some data in base (old ones for example) in order to allow our users not to be blocked ?