March 2015
Intermediate to advanced
192 pages
4h 32m
English
Content preview from Neo4j High PerformanceBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Transactions
Transactions are an integral part of the Neo4j ecosystem and primarily dominated by the use of two major components—the Write-Ahead Log (WAL) and the Wait-For Graph (WFG) for detection of deadlocks prior to their occurrence.
The Write Ahead log
The WAL in the Neo4j transaction system ensures atomicity and durability in transactions. Every change during a transaction persists on disk as and when the request for the change is received, without modifying the database content. When the transaction is committed, the changes are made to the data store and subsequently removed from the disk. So, when the system fails during a commit, the transactions can be read back and database changes can be ensured. This guarantees atomic changes and durability ...
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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.