Performance-Tuning-Document.md

search
keywords performance performance tuning Document API document

Tuning the Document API

This guide is specific for the Document Database. Please be sure to read the generic guide to the Performance-Tuning.

Massive Insertion

See Generic improvement on massive insertion.

Avoid document creation

You can avoid the creation of a new ODocument for each insertion by using the ODocument.reset() method that clears the instance making it ready for a new insert operation. Bear in mind that you will need to assign the document with the proper class after resetting as it is done in the code below.

NOTE: This trick works ONLY IN NON-TRANSACTIONAL contexts, because during transactions the documents could be kept in memory until commit.

Example:

import com.orientechnologies.orient.core.intent.OIntentMassiveInsert;

db.declareIntent( new OIntentMassiveInsert() );

ODocument doc = new ODocument();
for( int i = 0; i < 1000000; ++i ){
  doc.reset();
  doc.setClassName("Customer");
  doc.field("id", i);
  doc.field("name", "Jason");
  doc.save();
}

db.declareIntent( null );