Managing large sharded MySQL topologies with Jetpants - Percona

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Reusable code library Scriptable and pluggable manipulation of DBs • Custom scripts: shard an unsharded table, merge pools, defragment pools • Pluggable: backups, monitoring, query killers, etc • Generic enough to be useful for other companies Managing large sharded topologies with Jetpants
Implementation • Ruby objects representing hosts, MySQL instances, pools, shards, and the topology as a whole • Methods implementing state discovery, topology changes, etc • Command suite is a separate executable, using Jetpants as a library Takes user input and just calls these library methods as needed All domain knowledge is in the library, not the command suite So every command suite action is also scriptable via the library Managing large sharded topologies with Jetpants
Page 1 and 2: Managing Large Sharded Topologies w
Page 3 and 4: Motivations for Jetpants 1. Split r
Page 5 and 6: Shard split automation prereqs •
Page 7 and 8: Tumblr’s Scale, Oct 2012 • 103
Page 9: This means three things 1. We're hi
Page 13 and 14: How Jetpants exports data • Creat
Page 15 and 16: Import/export use cases • Defragm
Page 17 and 18: Redundant writes • Make your app
Page 19 and 20: Future Cutover • Always deploy cu
Page 21 and 22: Standby Slave, Standby Slave, blogs
Page 29 and 30: Why this matters "Resharding - I do
Page 31 and 32: Merging pools How to merge pool A i
Page 33 and 34: Map/Reduce in MySQL? Not exactly, b
Page 35 and 36: Plugin system • Built using Ruby
Page 37 and 38: Plugins: asset tracker • Jetpants
Page 39 and 40: Jetpants Roadmap • Nonstandard po

Managing large sharded MySQL topologies with Jetpants - Percona

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