I have been using Opendistro since version 0.9.0, and I am updating the cluster for each new version, but I am encountering a problem with the .kibana indeces.
In each new version, the .kibana of each tenant/user is duplicated, for example, for the admin user I have the following indices:
green open .kibana_92668751_admin_1 YWvTNdScTh26CfqM7FABSA 1 0 3 0 17.2kb 17.2kb
green open .kibana_92668751_admin_3 ELmp_GlxRq6zMAOX8U23LA 1 0 4 0 22.6kb 22.6kb
green open .kibana_92668751_admin_2 1faLD4EPRwajc9--LIBX2A 1 0 3 0 17.2kb 17.2kb
green open .kibana_92668751_admin_4 X7OWpreHRM-1HIMbqrKbvg 1 0 4 0 22.6kb 22.6kb
Can I safely delete _1, _2 and _3? I have seen that there are aliases for the .kibana indices and for example, for the admin user is _4:
.kibana_92668751_admin .kibana_92668751_admin_4
Should I open an issue in Opendistro to remove old indices?
Thanks!