Hi
I am using elasticsearch 0.19.9 for our log realtime analytics. I should
set up log retention period according to the disk usage in the
elasticsearch cluster but how much free space is needed by the percentage?
The reason why I am asking this question is, for cassandra, we need to
leave 50% free disk space for index compaction. Is this necessary for
elasticsearch too? Otherwise, can I keep index until the disk is full by
90%?
Thank you
Best, Jae
--