Elastic search version: 2.1
I have an index with below configuration
i.e primary shards 5 and replica per each primary as 2.
Number of nodes in cluser: 3
I have deployed each node on a single machine with 32gb ram and 3 machines to form a cluster.
For elastic process, configured -Xms15G and -XmX15G
I have indexed around 70k documents and pri.store size is 9gb and the store size i.e complete index size is 27gb.
When i search with this configuration, when i search for documents with some criteria on this index, Elastic search takes around 6-9 seconds on an average
Other indices are workfin fine with a searh performance of below 500ms but this index is giving issues.
What are possible options to improve the peformance?
- what should be maximum size of a single document to have optimal search pefromance.
- should the index be split into multiple indices for better perfromance? what should be max index size or no of documents in a index for optimal search performance