Uneven distribution of docs across shards, even with auto-generated ids about elasticsearch-net HOT 2 OPEN

Hi @EmilBode and thanks for your interest.

I can't reproduce this myself with pure Elasticsearch: if you don't specify document IDs then Elasticsearch generates them automatically in a manner that distributes documents across shards evenly. Therefore it seems that either there's something about how you're using the client which is causing it to specify document IDs (with a very skewed distribution for some reason) or the client is itself generating those document IDs. I can't tell which without digging into the .NET client code which I'm not set up to do, so I've transferred this to the elasticsearch-net repository for the attention of the .NET client folks.

from elasticsearch-net.

Thanks for looking into this.

For what it's worth, the IDs of the documents look like auto-generated IDs to me: 20 characters of a kind of base64-encoding (I'm seeing A-Z, a-z, 0-9, "-" and sometimes a leading underscore).

from elasticsearch-net.