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发布于 : Apr 24, 2019
不在本期内容中
这一条目不在当前版本的技术雷达中。如果它出现在最近几期中，那么它很有可能仍然具有相关参考价值。如果这一条目出现在更早的雷达中，那么它很有可能已经不再具有相关性，我们的评估将不再适用于当下。很遗憾我们没有足够的带宽来持续评估以往的雷达内容。
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Apr 2019
试验
Setting up highly available PostgreSQL instances can be tricky, which is why we like Patroni — it helps us speed up the setup of PostgreSQL clusters. Stolon is another tool that we've used successfully to run high-availability (HA) clusters of PostgreSQL instances in production using Kubernetes. Although PostgreSQL supports streaming replication out of the box, the challenge in an HA setup is to assure that the clients always connect to the current master. We like that Stolon enforces the connection to the right PostgreSQL master by actively closing connections to unelected masters and routing requests to the active one.
