September 2014
Intermediate to advanced
298 pages
6h 13m
English
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Tests and issues
Galera Cluster is a great and powerful solution. However, issues could happen and we're going to see here how to resolve them.
First of all, and as always, look at the logs (syslog by default); important information is written there and most of the time the problem will be explicit!
Paused replication
Sometimes, during a very high load write demand, the Cluster may stop replicating during this phase. Generally, this is not a good situation and you should avoid this kind of query as much as possible.
One solution can be to use an intermediate software layer to avoid it, for example, a Advanced Message Queuing Protocol (AMQP) software such as RabbitMQ or ZeroMQ. The setup of this kind of tool is out of the scope of this book.
To detect ...
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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.