# Clickhouse

We repurposed a hashtable to make ClickHouse significantly faster for analytical queries

Finding a needle in a haystack is really difficult. Why make it harder than it needs to be?

Sentry’s growth led to increased write and read load on our databases, and, even after countless rounds of query and index optimizations, we felt that our databases were always a hair’s breadth from the next performan...

For most of 2018, we worked on an overhaul of our underlying event storage system. We’d like to introduce you to the result of this work — Snuba, the primary storage and query service for event data that powers Sentry...