It looks like Marvel create one index per day. Things like
.marvel-es-1-2016.10.04. Can I configure this to be a bigger date range? for example one index per week or per month?
I want to keep a longer history but don't want to have too many indexes like
config/elasticsearch.yml, you can set the time format of the index for the exporters:
This will change the index pattern that it uses when it creates indices, which the UI-side will pick up automatically. This is better documented in 5.x, but it's shown in 2.x docs under the large exporter block.
Curious to know why you don't want too many indices. Is it because it's hard to maintain?
Too many index means too many segments to maintain, which means too many CPU, Ram for elasticsearch to use on those indexes. I would rather put those resource onto my data.
Cause I learned from elasticsearch: we don't want too many shards/segments.