> Now my functions just downloaded the file from S3, if it was newer than the local copy
if you have strong consistency requirements, this doesn't work. synchronizing clocks reliably between different servers is surprisingly hard. you might end up working with stale data. might work for use cases that can accept eventual consistency.
if you have strong consistency requirements, this doesn't work. synchronizing clocks reliably between different servers is surprisingly hard. you might end up working with stale data. might work for use cases that can accept eventual consistency.