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How to Questions on Coherence Cache Querying/Indexing/Sorting? (Doc ID 1444068.1)

Last updated on AUGUST 29, 2018

Applies to:

Oracle Coherence - Version 3.6.0 and later
Information in this document applies to any platform.
***Checked for relevance on 04-July-2017***

Goal

Here are answers to some common questions on Coherence cache querying, indexing, and sorting.

  1. Is indexing a one-time execution or should it be performed for every get()/getAll call?
  2. Is indexing applied or updated automatically when a new put() & putAll() call occurs? Or should reindexing be performed?
  3. If any storage node(s) is lost, do the backup nodes, which acquire the role of providing the data, reindex automatically or update the index OR should the index be performed again?
  4. In the event of any lost data, is the index still intact? What's the impact on losing data or storage nodes on the index?
  5. Does indexing happen at Distributed Cache Service level or at Partition level?

Solution

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