I have a cluster with 2 nodes. Each node has 2248 (1124 * 2) shards.
When I check cluster health using head plugin on one server (node) I see that indexing is going on and number of shards is increasing.
On another cluster using head plugin also I see that number of shards is stuck somewhere in the middle.
Another thing to notice is that on a "good" node when all shards are processed the cluster gets the green state, which is ok. My concerns is another node with stuck index. is it ok? Should the number of shards be equal on all nodes throughout the cluster?