Transactional databases almost always use checkpointing, and checkpointing is really, really hard to do well. From Postgres to InnoDB to PBXT, the dreaded “checkpoint spike” has caused or continues to cause server stalls. Commercial closed-source databases such as SQL Server have suffered from this problem, too. Come learn how different databases do checkpoints and how to tune yours properly. Learn how you might be able to improve your database’s checkpoint algorithms at the code level to avoid spikes. Share how your database’s algorithms avoid checkpointing or do it in novel ways to avoid spikes and stalls. Learn, share, optimize!
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