How do you maximize Elasticsearch indexing performance?
On this page
- Use bulk requests.
- Use multiple workers/threads to send data to Elasticsearch.
- Unset or increase the refresh interval.
- Disable replicas for initial loads.
- Give memory to the filesystem cache.
- Use auto-generated ids.
- Use faster hardware.
- Indexing buffer size.
How big can an Elasticsearch index be?
max_content_length is set to 100MB, Elasticsearch will refuse to index any document that is larger than that. You might decide to increase that particular setting, but Lucene still has a limit of about 2GB. Even without considering hard limits, large documents are usually not practical.
How many rows can Elasticsearch handle?
1 Answer. Show activity on this post. Every Elasticsearch index made up of one or more shards which are internally Lucene index which has a hard limit of ~2 billion(precisely equal to INT_MAX value-128) on maximum no of the document as explained in this link and this link.
What is the difference between index and indices in Elasticsearch?
Index is a collection of documents and indices is a document id. In Elastic Search,to search one document, we will use index id or indices id & name .
What is bulk indexing Elasticsearch?
Bulk APIedit. Performs multiple indexing or delete operations in a single API call. This reduces overhead and can greatly increase indexing speed.
How do I increase index size in Elasticsearch?
Sizing considerationsedit
- Searches run on a single thread per shardedit.
- Each index and shard has overheadedit.
- Elasticsearch automatically balances shards within a data tieredit.
- Delete indices, not documentsedit.
- Use data streams and ILM for time series dataedit.
- Aim for shard sizes between 10GB and 50GBedit.
How many shards do I need Elasticsearch?
A good rule-of-thumb is to ensure you keep the number of shards per node below 20 per GB heap it has configured. A node with a 30GB heap should therefore have a maximum of 600 shards, but the further below this limit you can keep it the better. This will generally help the cluster stay in good health.