In Neo we're introducing a system event log to record events that happen across the cluster, see the parent MB, https://issues.couchbase.com/browse/MB-46215 for more details.
For FTS we need to capture the following events.
|Search Service Event||Additional Details Needed|
|FTS Crash||Name of process that crashed
PID of crashed process
|FTS Index Created||UUID of the FTS Index|
|FTS Index Dropped||UUID of the FTS Index|
|FTS Settings Change||Previous Setting and New Setting|