I have a database with 800k objects and I defined about 13 shard servers to access the data quickly. I assigned a letter to each object for use in the sharding process, for example, shards: 'a' for the first object, shards: 'b' for the second object, and so on. I created a shard key using the shards field within each object and wanted to distribute the objects as evenly as possible across the 13 shard servers. I used "hashed" as the shard key for the shards field. I evenly distributed the letters to all objects, for example, 50k objects had shards: 'a' and 50k objects had shards: 'b', and so on. I used "sh.shardCollection("test.testCollection", { "shards": "hashed" } ) to shard the collection, but the data only went to two of the 13 shard servers. The distribution was not even among the two servers, with a distribution of approximately 72% to one server and 28% to the other. I want the data to be evenly distributed among all 13 shard servers. Can you help me with this?
