June 2018
Intermediate to advanced
408 pages
11h 23m
English
book
Hands-On High Performance with Spring 5
by Chintan Mehta, Subhash Shah, Pritesh Shah, Prashant Goswami, Dinesh Radadiya
Content preview from Hands-On High Performance with Spring 5
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Validate connections
The advantage of setting this configuration is that an invalid connection will never be used, and it helps us to prevent client errors. The disadvantage of this configuration is a small performance penalty because to validate the connection, one round-trip to the database is required to check whether the session is still active. The validation is accomplished via sending a small query to the server, but the cost of this query could be lower.
The configuration parameters for validating connections are as follows:
- testOnBorrow: When the testOnBorrow attribute is defined as true, the connection object is validated before use. If it fails to validate, it will be dropped into the pool, and another connection object will be ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.