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Hi,
- S3 supports strong read-after-write consistency: https://aws.amazon.com/blogs/aws/amazon-s3-update-strong-read-after-write-consistency/
- based on 1., yes
- No. Elasticache is to be used more when very low-latency is expected: elasticache reads from RAM while S3 from disk
- No. Elasticache does not provide read after write consistency "out of the box": see question "
How does ElastiCache keep my read replica up-to-date with its primary node ?
" of https://aws.amazon.com/elasticache/faqs/ Best,
Didier
- So in elastiCache we will the face the issue as discussed above of getting the older version. Is there any solution for that in cache? Is reading from primary only will help ?