Architecting Distributed Databases with Fangjin Yang
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“The more you’re comfortable with this idea that everything is going to fail, the more you realize that it’s a natural process of distributed systems, and it helps you write and architect better code.”
Druid is a column-oriented distributed database that excels as a data warehousing solution for fast queries on large data sets.
Fangjin Yang is a core contributor to Druid, and is currently co-founder and CEO of Imply, which helps build interactive analytics powered by Druid.
Questions
- Why is it helpful for developers to acknowledge up front that “everything is going to fail”?
- How often does a single server fail in cloud and distributed environments?
- Can you describe a simple failure scenario where replication allows for recovery?
- How do you implement fast recovery?
- What is a hedged request?
- What are some other strategies for minimizing variability among nodes?
- What are some macroscopic lessons you learned about distributed systems while you were building Druid?
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