November 2018
Beginner to intermediate
260 pages
6h 12m
English
Content preview from Apache Ignite Quick Start Guide
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Preventing OOM
Apache Ignite can be configured to persist entries (native or third-party) by enabling the persistence flag, or it may not persist data at all. When native persistence is turned on, then Ignite stores entries in memory and on disk. When native persistence is turned off (either using a third-party persistence store or no persistence), then Ignite uses the off-heap memory to store the entries and allocates new pages in RAM when required. We know that Ignite's durable memory has a maximum limit (20% of RAM or an overridden value); when that limit is reached and Ignite cannot allocate a page, it purges some of the data to prevent OOM errors. This purging technique is known as eviction, and Ignite provides APIs to configure 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.