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facebook database sharding


facebook database sharding



The entire data set is split into thousands of shards, and every instance holds a group of such shards, each in
its own database schema. A Facebook user’s profile is assigned to a shard when the profile is created and …



Facebook puts an extremely demanding workload on its data backend. …. All objects and associations in the
same shard are stored persistently in the same MySQL database, and are cached on the same set of servers in
 …



7 Aug 2015 … Sharding by region or location is one of the absolute worst ways to shard. There are millions of people in New
York, or Los Angeles but much much smaller populations elsewhere. Sharding by location (by school …



28 Aug 2017 … This post covers 5 different data models for sharding, from sharding by tenant (multi-tenant
data … When it comes to scaling your database, there are challenges but the good news is that you have …



Facebook MySQL tiers. ▫ Over a dozen sharded “tiers”, each with own hostname scheme. ▫ Separate tiers for
user data, timeline data, message data, etc. ▫ Vast majority of our database hosts belong to these tiers.



6 Dec 2011 … Facebook’s MySQL user database is composed of approximately 60 percent hard
disk drives, 20 percent SSDs … This approach to scaling via database sharding continues to show growth.



29 Aug 2017 … On the other hand, NoSQL databases had a programmatic API and conformed to a different
query … While Facebook’s “sharded SQL” solution is built on top of an MySQL, the solution in its totality …



Facebook’s servers directly accessed MySQL to read/write the social graph. … In the multi-region configuration,
there are master-slave regions for each shard and each region has its own followers, leader, and …



Facebook is using LAMP structure. Facebook’s backend services are written in a variety of
different programming languages including C++, Java, Python, and Erlang and they are used according to …



19 May 2015 … The space of objects and associations is divided into shards, each shard is
assigned to a logical MySQL database with a table for objects and a table for associations. Objects of different
types …

By | 2018-08-27T15:03:11+00:00 August 27th, 2018|Uncategorized|Comments Off on facebook database sharding