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Beyond-Webscale Databases

by Daniel Knell

Arguing that /dev/null is actually a high performance ACID compliant database.

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No replciation, doesnt scale well, out of order retrieval was a pain\n
Solved out of order retrevial, can replicate, clunky, boring, not shiny any more, not webscale\n
Mongo DB, only option, sql sucks, map reduce\n
Not Enough, Luna/Martian Colonisation, Extreme Latency\n
I think I’ve found the answer, its on every unix machine, its called /dev/null\n
atomicity, consistency, isolation, durability, how databases are measured, one sacrificed for others, problem with nosql\n
run commands, if fail, database in the state it was before it started, success database in the state its intended to be, mysql transactions, commit, rollback\n
data should be the same on all nodes, mysql replication, instant, regardless of network speeds and connectivity\n
data available in previous state until transaction commits, able to access data in the the state it was at any point in history\n
persisting data to disk, mongo wasn’t very good at this, data always in the state it was when you left it, no matter how shutdown\n
we get amazing throughput, no other benchmarks come close.\n
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Beyond-Webscale Databases /dev/null
History
Local Files
RelationalDatabase
Going Webscale
It’s Not Enough!
We Need a Hero!
ACID
Atomicity
Consistency
Isolation
Durability
Benchmarks!
100000750005000025000 0 Mysql Mongo /dev/null Throughput
100000750005000025000 0 Mysql Mongo /dev/null Replication
Convinced?
Thats All Folksemail: contact@danielknell.co.uktwitter: @danielknellwebsite: http://danielknell.co.uk/Any Questions?