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This is right. Source: worked on the FB MySQL team, though it was a long time ago. There is also massive, massive associated caching infra (memcached, Tao). The

This is right. Source: worked on the FB MySQL team, though it was a long time ago. There is also massive, massive associated caching infra (memcached, Tao). There isn't as much hoopla about it but there are some public blog posts. I think it's even more interesting than the backing store. The UDB tier used to use the InnoDB engine; nowadays it's MyRocks: https://research.facebook.com/publications/myrocks-lsm-tree-database-storage-engine-serving-facebooks-social-graph/ https://research.facebook.com/publications/myrocks-lsm-tree-...

tpankaj 4y ago
There are a couple of blog posts and associated papers on TAO: https://engineering.fb.com/2013/06/25/core-data/tao-the-power-of-the-graph/ https://engineering.fb.com/2013/06/25/core-data/tao-the-powe... https://research.facebook.com/publications/flighttracker-consistency-across-read-optimized-online-stores-at-facebook/ https://research.facebook.com/publications/flighttracker-con... https://engineering.fb.com/2021/08/18/core-data/ramp-tao/ https://engineering.fb.com/2021/08/18/core-data/ramp-tao/ https://engineering.fb.com/2022/09/07/open-source/taobench/ https://engineering.fb.com/2022/09/07/open-source/taobench/ I work on TAO consistency at FB and we've put out a bunch more articles/papers in the past couple years. Until 2 years ago, there was just the 2013 paper on TAO itself.