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View Code? Open in Web Editor NEWBoost Bulk Insert Performance using Boot
Boost Bulk Insert Performance using Boot
Greetings!
Just thought I should mention one JPA-trick you didn't try according to your medium-article.
We have a similar setup on the project I'm working on, and our benchmark without batching was 17 seconds.
With batching this was reduced to 9 seconds. However, almost 7 of these 9 seconds was just hibernate asking the database to generate new ids with SELECT nextval('sequence name')
. With allocationSize = 50 on @SequenceGenerator, and telling the sequence to increment by 50 instead of 1, we inserted the same amount of rows in 2 seconds.
ALTER SEQUENCE <sequence name> INCREMENT BY 50;
Just keep in mind this will result in gaps in your auto-incrementing id column.
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