Twitter replicates twice in data centre move

 

Two-stage migration.

Twitter has completed a major migration of its infrastructure into a new data centre, shifting 20TB of tweets and much of its backend gear twice in the process.

The company's engineering team said the migration process began last September to increase resilience and reduce downtime for the microblogging service.

Engineers started by extending Twitter's systems to replicate tweets to multiple data centres – allowing the service to operate throughout the migration.

Some hardware and "non-runtime systems" were shifted from the old primary facility to a secondary data centre, which also acted as a "staging laboratory" to test Twitter's replication and migration strategy.

Engineers started serving live traffic from the secondary data centre for test purposes "and to continue to shed load from our primary data centre".

At the same time, engineers prepared a third location which was to become Twitter's new home.

Once the migration strategy from primary to secondary was proven, engineers shifted "all of Twitter from the first and second data centres to the final nesting grounds" - the new third data centre.

"This essentially required us to move much of Twitter two times," engineers said.

Copyright © iTnews.com.au . All rights reserved.


Twitter replicates twice in data centre move
 
 
 
Top Stories
Content, cost & constant innovation: How Foxtel plans to take on Netflix
Nell Payne inhabits the “brave new world of blue strings and networking”. Just don't ask her to put a TV screen on your microwave.
 
Sending in the drones
Margins are getting tighter in the industrial services industry, so Transfield Services' Stephen Phillips looks offshore - and to the skies - for the solutions he needs to keep pace.
 
Westpac fires starting pistol on core banking upgrade
St George readies itself for move to Celeriti.
 
 
Sign up to receive iTnews email bulletins
   FOLLOW US...
Latest Comments
Polls
Should Optus make a bid for iiNet?

   |   View results
Yes
  44%
 
No
  56%
TOTAL VOTES: 524

Vote