June 2019
Beginner to intermediate
360 pages
10h 55m
English
Content preview from Big Data Simplified
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184 | Big Data Simplied
• Start Node, End Node and Error Node fall under this category of nodes.
• Start Node designates the start of the workflow job.
• End Node signals the end of the job.
• Error Node designates the occurrence of an error and the corresponding error message to be
printed.
7.6 LUCENE AND SOLR
It is simply put that Lucene (full text search engine) is an open source technology for building
up full text indexes on databases. The wrapper on top of that is called Solr, which really provides
high-level indexing services. Interestingly, the creator of Lucene and Hadoop are the same person
Figure 7.5 Oozie workflow
Start ...
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