4 ms·

Are the twitter guys explaining their solutions to problems anywhere? I recall DHH saying scale is not an RoR issue, but twitter appears to have scaling issues

• mdasen 18y ago
  Scalling an application is easy. You just stick a load balancer in front of more and more webheads. The hard part is scaling a database! Twitter is still running a single master database system and - from what they've put out - only three database servers. They might also have some pretty, but wasteful queries that do a lot of joins. Joins are not good for high-hit applications.
  • j2d2 18y ago
    I thought this also wasn't hard by using horizontal partitioning..? Which, I think, would have to map back into the application too.