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Twitter从支撑千万到万亿级索引的有哪些信誉好的足球投注网站引擎架构演化课案
The Road to a
Complete Tweet Index
Outline
1. Current Scale of Twitter Search
2. The History of Twitter Search Infra
3. Complete Tweet Index
4. Search Engine Applications
5. Outlook
The Road to a Complete Tweet Index
@yz
Outline
1. Current Scale of Twitter Search
2. The History of Twitter Search Infra
3. Complete Tweet Index
4. Search Engine Applications
5. Outlook
The Road to a Complete Tweet Index
@yz
More than 2 billion search queries per day.
@yz
The Road to a Complete Tweet Index
Current Scale of Twitter Search
Hundreds of million Tweets are indexed per day.
@yz
The Road to a Complete Tweet Index
Current Scale of Twitter Search
@yz
The Road to a Complete Tweet Index
Current Scale of Twitter Search
Hundreds of billions of Tweets have been
sent since company founding in 2006.
@yz
The Road to a Complete Tweet Index
Current Scale of Twitter Search
Our Complete Tweet Index is served by
thousands of instances, each with 256GB
RAM and 2TB SSD.
@yz
The Road to a Complete Tweet Index
Current Scale of Twitter Search
But …
our search infrastructure is currently
supported by only a small number of
engineers and SREs.
We are hiring!
Outline
1. Current Scale of Twitter Search
2. The History of Twitter Search Infra
3. Complete Tweet Index
4. Search Engine Applications
5. Outlook
The Road to a Complete Tweet Index
@yz
@yz
The Road to a Complete Tweet Index
2010
Realtime Search Powered by replicated
MySQL instances and MySQL text
matching.
@yz
The Road to a Complete Tweet Index
2010
Realtime Search Powered by MySQL.
Hundreds of Tweets per second.
A few thousand of queries per second.
Basic text search: no fancy tokenization, no
search assistance, slow geo search etc.
Many incidents and down times.
MySQL master/slave dying was
particularly problematic.
@yz
The Road to a Complete Tweet Index
2011
Launched Lucene-based search engine:
Earlybird*.
Lucene API, but custom data structures
optimized for in-memory operations and
Realtime search.
Novel concurrent a
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