write-behind vs write-through cache scheme

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Write-behind and write-through are caching schemes used to improve performance and data consistency.

Write-behind cache scheme delays the write operation to the main storage until it is necessary, improving write performance.
Write-through cache scheme writes data to both the cache and the main storage simultaneously, ensuring data consistency.
Write-behind is suitable for scenarios where write performance is critical, but data consistency can be compromised temporarily.
Write-through is suitable for scenarios where data consistency is crucial, but write performance can be sacrificed.
Examples of write-behind cache include Apache Ignite and Hazelcast.
Examples of write-through cache include Ehcache and Memcached.

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