Errata


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Submit your own errata for this product.


The errata list is a list of errors and their corrections that were found after the product was released. If the error was corrected in a later version or reprint the date of the correction will be displayed in the column titled "Corrected".

The following errata were submitted by our customers and approved as valid errors by the author or editor.


Color Key: Serious Technical Mistake Minor Technical Mistake Language or formatting error Typo Question



Version Location Description Submitted By Corrected
Printed Page 10
paragraph 3

"timem" should be "time"

Chuck Newman 
Printed Page 12
"October 2008" bullet

"per a day" should be either "per day" or "a day"

Chuck Newman 
Printed Page 65
Figure 3-2

The illustration in Figure 3-2 does not match the description given in the sidebox "Network Topology and Hadoop".

1. For d1/r2, the node is mislabelled as n1 (should be n3)
2. For d2, racks are mislabelled as 'r1' and 'rack' (should be 'r3' and 'r4')
3. For d2/r3, the node is mislabelled as n1 (should be n4)

Note from the Author or Editor:
I agree with all the corrections except for 'rack' which is there to indicate that this entity is a rack, so it doesn't need relabelling 'r4' (since r4 is never referred to in the text).

KS Chow 
Printed Page 140
3rd paragraph

Paragraph 3, line 5, word 1:
Reference to 'task_200811201130_0054_m_000000' does not exist, it should refer to 'task200904110811_0003_m_000044'.

Note from the Author or Editor:
It should refer to 'task_200904110811_0003_m_000044'.

kchow8 
Printed Page 181
6th paragraph

At the end of the first sentence in the sidebar: "new users to Hadoop.Almost" there is a missing space after the period.

Tom White
Tom White
O'Reilly Author 
Printed Page 246
"Storage" heading

"41 TB SATA disks" should read "4 x 1TB SATA disks"

Tom White
Tom White
O'Reilly Author 
Printed Page 298
4th paragraph

The directory hierarchy is misaligned.

The line consisting of "/previous/VERSION" should have its first "/" character vertically aligned with the first "/" of "${dfs.name.dir}/current/VERSION".

The first "/" character of each of the following lines ("/edits", "/fsimage", "/fstime") should align with the second "/" of "/previous/VERSION".

Tom White
Tom White
O'Reilly Author 
Printed Page 503
1st paragraph

Sentence ending "Leeds, UK" is missing a period.

Tom White
Tom White
O'Reilly Author