[infinispan-issues] [JBoss JIRA] (ISPN-4650) MassIndexer should not use UpdateDocument when adding to Lucene

[ https://issues.jboss.org/browse/ISPN-4650?page=com.atlassian.jira.plugin.... ] Gustavo Fernandes updated ISPN-4650: ------------------------------------ Description: The MassIndexer currently issues a Delete plus and Add operation to hibernate search backend. Lucene buffers those deletes queries and during merge it tries to 'apply' those deletes wasting a massive amount of time doing seeks and queries unnecessarily. Since the mass indexer wipes the index at the beginning, it should simply issue an add operation. Performance wise this make a huge difference: * indexing 50k documents brings down the indexing time from 195s to 33s * indexing 200k documents brings down the indexing time from 600s to 55s was: The MassIndexer currently issues an Update operation to hibernate search backend, which in turn becomes a delete plus and add in the index. Lucene buffers those deletes queries and during merge it tries to 'apply' those deletes wasting a massive amount of time doing seeks and queries unnecessarily. Since the mass indexer wipes the index at the beginning, it should simply issue an add operation. Performance wise this make a huge difference: * indexing 50k documents brings down the indexing time from 195s to 33s * indexing 200k documents brings down the indexing time from 600s to 55s -- This message was sent by Atlassian JIRA (v6.2.6#6264)