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by phamilton
1346 days ago
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We try to upgrade at least once a year, during our slow season (ed-tech, so summer time is < 1/10th peak traffic). We use AWS Aurora with Postgres and we autoscale our cluster. Because most upgrades have a few perf improvements we have found that we save a bit of money every time we upgrade, either in reduced CPU (which translates to running fewer instances) or in better memory efficiency (which boosts buffer_cache_hit_ratio and therefore reduces IO). |
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