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Chris MacNaughton currently works on the OpenStack Engineering team at Canonical Ltd, focused on increasing testing through functional and unit test improvements, as well as novel hypervisors Nova LXD and distributed storage Ceph and Gluster. While I accept that talking about how Nutch stores its crawl data is necessary, do we really need an introduction on how to install MySql and Apache Acumulo?
It is even less compelling when most of the part about installing Acumulo is copied directly from the referenced blog post. The authors have, however, gone through the trouble of compiling information scattered through the documentation and various blog posts into one book. I would like it if the book were better organized though. It feels jumpy, repetitive, and unstructured. It jumps back and forth between Nutch 1. It would probably have made more sense for the authors to split it into 2 books, one dedicated to each version that try to mash them together so haphazardly.
In addition to their propensity for changing versions without warning, the examples regularly use different versions of software for different things. For example, the first section of the book touches on installing Apache Solr with version 3. Sometimes, it seems that the authors formatted the Nutch documentation instead of writing their own content.
I get the feeling that the authors felt like they did not have a long enough book so they decided to repeat themselves a lot. They talk about what you will learn in the upcoming chapter, they talk about it in the chapter, they review it at the end of the chapter, and then they remind you that they talked about it in following chapters!
As we progress into talking about Hadoop, the author describes the cluster they are going to demonstrate as having six systems, one master node and 5 slaves. After we get through the initial master configuration we never even touch on how to setup the slaves except for a note that you will need a system like Chef or distributed SSH to manage the many nodes. While the book claims that it will help you integrate Nutch with Hadoop, it only ever touches on Nutch 1.
Your email address will not be published. TLDR: Almost1 all of the actual charm tests have been removed from Zaza and moved to a new package in the openstack-charmers namespace: zaza-openstack-tests In this post, we will take a charm written with Amulet tests and Gitlab has added support for dependency scanning to their CI system. The recommended method for enabling this support is to enable their CI step that detects Chris' Playground About Toggle Menu.
Structure It jumps back and forth between Nutch 1. Leave a Comment Your email address will not be published. Website optional. Not used. Leave blank if you are a human. Submit Comment. You May Also Enjoy Namespacing Zaza 3 minute read TLDR: Almost1 all of the actual charm tests have been removed from Zaza and moved to a new package in the openstack-charmers namespace: zaza-openstack-tests Security Scanning Rust Dependencies less than 1 minute read Gitlab has added support for dependency scanning to their CI system.
Book Review: Web Crawling and Data Mining with Apache Nutch
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Web Crawling and Data Mining with Apache Nutch.
Comment 0. The first quarter of the book is largely introductory. For me, the book got a bit more interesting when it covered the Nutch Plugin architecture. The book then covers deployment and scaling. This includes detailed instructions on Hadoop installation and configuration. This is followed by a chapter on persistence mechanisms, which uses Gora to abstract away the actual storage.