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Assorted Rants Tagged ‘Server’, page 1:

Experience with development server 7x cheaper than Linode/DO

Preamble As I wrote a few weeks ago, I am currently developing an open-souce ithare::obf library. And apparently, to make sure it works more or less consistently, a Damn Lot(tm) of randomized testing (and preferably under different compilers) is necessary. As a result, last week I found myself in a search for a cheap Linux box […]

OLTP Database Optimization 102 – DIY Heterogeneous Replication (Part II)

Quote: “The point of Super-Replica is that it is a replica Slave DB which is larger than original Master DB”
Another Quote: “this “don’t write some HISTORICAL data to Master DB” approach can easily allow to reduce the load on the Master OLTP DB by a factor of 2x-3x”

OLTP Optimization 102: DYI Heterogeneous Replication. Part I (Basics)

Quote: “there are still several Big Fat Reasons™ to use DIY replicas”
Another Quote: “With the Replication Messages described above, it is ok to apply Replication Messages to Slave DB which is newer than exactly necessary.”

OLTP DB Optimizations 102 – Group Commits

Quote: “if we can commit several transactions at the same time – RDBMS needs to fsync() our DB logs to physical disks only once”
Another Quote: “if going our preferred way of single-writing-DB connection – make sure NOT to use RDBMS-level Group Commit”

DB Execution Plans for C++/Java Developers, and for anybody who has read Knuth

Quote: “If I was a compiler-with-ability-to-create-indexes-as-I-need-it – what would I do to make The Ideal Execution Plan™ for this request?”
Another Quote: “When we have that ideal-execution-plan – we still need to convince our SQL compiler to use it”