November 2018
Beginner to intermediate
260 pages
6h 12m
English
Content preview from Apache Ignite Quick Start Guide
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Retrieving a value
Suppose you have configured playerCache to be created in the soccerRegion data region. When you try to retrieve a player's details from the cache, internally the following steps are executed:
- You call playerCache .get(playerId);.
- Ignite finds the data region associated with playerCache, which is the soccerRegion region. If you don't configure any data regions for your cache, Ignite uses the default data region to store the cache entries.
- Once the data region is found, it needs to find the page where the player entry is stored. Ignite looks up the meta-pages in "soccerRegion" to find the root of the B+ tree associated with"playerCache". The B+ tree stores the indexes of"playerCache" using the hashcode of "playerId" (long ...
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