We have a performance issue on our cluster elastic that doesn't succeed ingesting in real time our 3000eps.
The size of our indexes is around 200GB.
We have 8 nodes, and each of our index have 4 shards and 1 replica.
Our heap size on each of our data nodes is 16GB.
We have 32 GB available but reading elastic docs we have seen that lucenes processes need 50% of the RAM.
Does the number of shards impact the indexation process ?
We know that more shards you have more the research process is fast but what about the indexation ?
If we add shards, does the indexation will be faster ?
Thank you for your response