February 2015
Beginner to intermediate
178 pages
4h 3m
English
Content preview from Apache Flume: Distributed Log Collection for Hadoop - Second EditionBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Summary
In this chapter, we covered various interceptors shipped with Flume, including:
- Timestamp: These are used to add a timestamp header, possibly overwriting an existing one.
- Host: This is used to add the Flume agent hostname or IP as a header in the event.
- Static: This is used to add static String headers.
- Regular expression filtering: This is used to include or exclude events based on a matched regular expression.
- Regular expression extractor: This is used to create headers from matched regular expressions. It's useful for routing with Channel Selectors.
- Morphline: This is used to delegate transformation to a Morphline command chain.
- Custom: This is used to create any custom transformations you need that you can't find elsewhere.
We also covered ...
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