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You're reading from  Advanced Elasticsearch 7.0

Product typeBook
Published inAug 2019
Reading LevelBeginner
PublisherPackt
ISBN-139781789957754
Edition1st Edition
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Author (1)
Wai Tak Wong
Wai Tak Wong
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Wai Tak Wong

Wai Tak Wong is a faculty member in the Department of Computer Science at Kean University, NJ, USA. He has more than 15 years professional experience in cloud software design and development. His PhD in computer science was obtained at NJIT, NJ, USA. Wai Tak has served as an associate professor in the Information Management Department of Chung Hua University, Taiwan. A co-founder of Shanghai Shellshellfish Information Technology, Wai Tak acted as the Chief Scientist of the R&D team, and he has published more than a dozen algorithms in prestigious journals and conferences. Wai Tak began his search and analytics technology career with Elasticsearch in the real estate market and later applied this to data management and FinTech data services.
Read more about Wai Tak Wong

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Migration from a multiple mapping types index

Mapping type will be deprecated in version 7.0.0 and will be removed in 8.0. Instead, only the default _doc mapping type is used. If you have an index with multiple mapping types for logical grouping documents, the reindex operation must be performed in order for each document to have no mapping type. Recall that Elasticsearch 7.0 does not launch on nodes with an index created prior to 6.0. Therefore, you must first upgrade the old version to 6.x first.

You may perform the reindex operation to remove multiple mapping types in 6.x. Then, you can upgrade to 7.0. Assume that there is one cf_etf index with three mapping types including nyse, nasdaq, and cboe. To remove the mapping types, you may create a new index for each mapping type. Let's use the same name of the mapping type to create the corresponding index. After the indices...

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Advanced Elasticsearch 7.0
Published in: Aug 2019Publisher: PacktISBN-13: 9781789957754

Author (1)

author image
Wai Tak Wong

Wai Tak Wong is a faculty member in the Department of Computer Science at Kean University, NJ, USA. He has more than 15 years professional experience in cloud software design and development. His PhD in computer science was obtained at NJIT, NJ, USA. Wai Tak has served as an associate professor in the Information Management Department of Chung Hua University, Taiwan. A co-founder of Shanghai Shellshellfish Information Technology, Wai Tak acted as the Chief Scientist of the R&D team, and he has published more than a dozen algorithms in prestigious journals and conferences. Wai Tak began his search and analytics technology career with Elasticsearch in the real estate market and later applied this to data management and FinTech data services.
Read more about Wai Tak Wong