s3-lambda vs Vespa: What are the differences?
s3-lambda: Lambda functions over S3 objects: each, map, reduce, filter. s3-lambda enables you to run lambda functions over a context of S3 objects. It has a stateless architecture with concurrency control, allowing you to process a large number of files very quickly. This is useful for quickly prototyping complex data jobs without an infrastructure like Hadoop or Spark; Vespa: Store, search, rank and organize big data. Vespa is an engine for low-latency computation over large data sets. It stores and indexes your data such that queries, selection and processing over the data can be performed at serving time.
s3-lambda and Vespa belong to "Big Data Tools" category of the tech stack.
s3-lambda and Vespa are both open source tools. It seems that Vespa with 2.85K GitHub stars and 339 forks on GitHub has more adoption than s3-lambda with 1.06K GitHub stars and 43 GitHub forks.