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HBase-Administration-Cookbook PDF 下载
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Everything you need is listed in each recipe.
The basic list of software required for this book are as follows:
f Debian 6.0.1 (squeeze)
f Oracle JDK (Java Development Kit) SE 6
f HBase 0.92.1
f Hadoop 1.0.2
f ZooKeeper 3.4.3
Who this book is for
This book is for HBase administrators, developers, and will even help Hadoop administrators.
You are not required to have HBase experience, but are expected to have a basic
understanding of Hadoop and MapReduce.
Conventions
In this book, you will find a number of styles of text that distinguish between different kinds of
information. Here are some examples of these styles, and an explanation of their meaning.
Code words in text are shown as follows: "HBase can be stopped using its stop-hbase.sh
script."
A block of code is set as follows:
nameserver 10.160.49.250 #private IP of ns
search hbase-admin-cookbook.com #domain name
When we wish to draw your attention to a particular part of a code block, the relevant lines or
items are set in bold:
MAJOR_COMPACTION_KEY = \x00
MAX_SEQ_ID_KEY = 96573
TIMERANGE = 1323026325955....1323026325955
hfile.AVG_KEY_LEN = 31
hfile.AVG_VALUE_LEN = 4
hfile.COMPARATOR = org.apache.hadoop.hbase.KeyValue$KeyComparator
This material is copyright and is licensed for the sole use by Eric Yang on 24th August 2012
-, -, -, -, -
Preface
Any command-line input or output is written as follows:
$ bin/ycsb load hbase -P workloads/workloada -p columnfamily=f1 -p
recordcount=1000000 -p threadcount=4 -s | tee -a workloada.dat
YCSB Client 0.1
Command line: -db com.yahoo.ycsb.db.HBaseClient -P workloads/workloada -p
columnfamily=f1 -p recordcount=1000000 -p threadcount=4 -s -load
Loading workload...
New terms and important words are shown in bold. Words that you see on the screen, in
menus or dialog boxes for example, appear in the text like this: " Verify the startup from AWS
Management Console".
Warnings or important notes appear in a box like this.
Tips and tricks appear like this.
Reader feedback
Feedback from our readers is always welcome. Let us know what you think about this book—
what you liked or may have disliked. Reader feedback is important for us to develop titles that
you really get the most out of.
To send us general feedback, simply send an e-mail to feedback@packtpub.com, and
mention the book title through the subject of your message.
If there is a topic that you have expertise in and you are interested in either writing or
contributing to a book, see our author guide on www.packtpub.com/authors.
Customer support
Now that you are the proud owner of a Packt book, we have a number of things to help you to
get the most from your purchase.
Downloading the example code
You can download the example code files for all Packt books you have purchased from your
account at http://www.packtpub.com. If you purchased this book elsewhere, you can
visit http://www.packtpub.com/support and register to have the files e-mailed directly
to you.
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