i was looking over the IngestTask code and i see, that finished segments are pushed and at the end announced.
I was wondering, what about existing segments? Who takes care of them? Do i have to unnannounce them and delete them, before i create new segments?
For example, the realtime node creates for an hour 2 segments, one for each shard. On re-index i know, that i can stuff everything into 1 shard. So, when i upload/announce segments, how will the old shards be treated?