October 2018
Intermediate to advanced
530 pages
14h 25m
English
Content preview from Blockchain across Oracle
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OBCS orderer node
When provisioning an instance of OBCS, you can choose what kind of ordering (orderer) service you want to use. In version one of OBCS, you can choice between SOLO and Kafka. SOLO is mainly used for development and provides a single process, whereas Kafka performs the serialization of transactions and ensures high availability. When using vanilla Fabric 1.0, the Kafka cluster must set the retention period to infinity as it is the single source of truth and an essential part of keeping data integrity.
Oracle developed some enhancements for their orderer node. In OBCS, the orderer node uses the Event Hub Cloud Service (EHCS) as its managed Apache Kafka instance. It's maximum retention time is two weeks. So, instead of keeping ...
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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.