mirror of https://github.com/apache/druid.git
7 lines
698 B
Markdown
7 lines
698 B
Markdown
---
|
|
layout: default
|
|
---
|
|
Druid is a complementary addition to Hadoop. Hadoop is great at storing and making accessible large amounts of individually low-value data. Unfortunately, Hadoop is not great at providing query speed guarantees on top of that data, nor does it have very good operational characteristics for a customer-facing production system. Druid, on the other hand, excels at taking high-value summaries of the low-value data on Hadoop, making it available in a fast and always-on fashion, such that it could be exposed directly to a customer.
|
|
|
|
Druid also requires some infrastructure to exist for “deep storage”. HDFS is one of the implemented options for this “deep storage”.
|