i setup dynamodb in aws. know throughput impact of choosing consistent reads
strongly consistent reads use more throughput consistent reads or other way around?
eventually consistent reads
when read data (getitem, batchgetitem, query or scan operations), response might not reflect results of completed write operation (putitem, updateitem or deleteitem). response might include stale data. consistency across copies of data reached within second; if repeat read request after short time, response returns latest data. default, query , getitem operations perform consistent reads, can optionally request consistent reads. batchgetitem operations consistent default, can specify consistent on per-table basis. scan operations consistent default.
strongly consistent reads
when issue consistent read request, dynamodb returns response up-to-date data reflects updates prior related write operations dynamodb returned successful response. a consistent read might less available in case of network delay or outage. getitem, query or scan operations, can request consistent read result specifying optional parameters in request.
you can find here
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