August 2019
Intermediate to advanced
256 pages
6h 43m
English
book
Hands-On Enterprise Java Microservices with Eclipse MicroProfile
by Cesar Saavedra, Heiko W. Rupp, Jeff Mesnil, Pavol Loffay, Antoine Sabot-Durand, Scott Stark
Content preview from Hands-On Enterprise Java Microservices with Eclipse MicroProfile
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Change for counters – introducing ConcurrentGauge
Counters in Metrics 1.x had two functions:
- To provide a measure for the number of concurrent invocations
- As a metric that can count up to the number of transactions committed, for example
Unfortunately, the first way was the default when using the annotation without specifying the monotonic keyword, which is unexpected and was confusing a lot of users. The second version of this also had its issues, as a counter value could also decrease at will, which violates the understanding that a counter is a monotonically increasing metric.
For this reason, the Metrics working group has decided to change the behavior of counters so they only work as monotonically increasing metrics and to defer the ...
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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.