Alex Mitelman Personal website
Posts with the tag step functions:

System Design Weekly 018: August 2021

Highlights Logging at Twitter: Updated Centralized logging at Twitter was limited by low ingestion capacity and query capabilities which resulted in poor adoption. The previous solution ingested around 600K events per second per data center. However, only around 10% of the logs were submitted, with the remaining 90% discarded by the rate limiter. To address this, Twitter adopted Splunk Enterprise and migrated centralized logging to it. Now it ingests 4 times more logging data and has a better query engine and better user adoption.

System Design Weekly 010: May 2021

Highlights AWS: Diving Deep on S3 Consistency Werner Vogels, CTO at Amazon, shares the journey of building strong consistency for AWS S3. When S3 was launched 15 years ago in 2006, it was simple storage for files, backups, etc. The eventual consistency model was more than enough for such purposes. This means that sometimes API would return an older version of the object that was not yet propagated through the nodes.