Indexes not migrating from hot to cold

Elastic Stack Elasticsearch
1

Hi. I have a Hot Cold setup (two nodes hot, one node cold). It does not appear any of my indexes in hot ever migrate to cold, given my ILM policy. For example:

Screen Shot 2020-02-25 at 1.44.24 PM
Screen Shot 2020-02-25 at 1.44.24 PM2294×1482 331 KB

Screen Shot 2020-02-25 at 1.44.42 PM
Screen Shot 2020-02-25 at 1.44.42 PM2310×1744 362 KB

But index I expect to be cold by now is still in hot phase:

Screen Shot 2020-02-25 at 1.46.21 PM
Screen Shot 2020-02-25 at 1.46.21 PM1644×1794 225 KB

Is it because index has not resolved or completed rollover phase? How can I force rollover or disable rollover to try to get this index to finally go to cold phase?

2

It turns out I had a couple things going on:

1). Running out of shards per node (1000 shard limit)
2). Not having properly configured write indexes for the rollover steps, preventing rollover from happening