The REPL: Issue 97 - September 2022
Signing Git Commits with Your SSH Key
SSH keys are more common than GPG keys, by far. I don’t know many developers that have GPG keys, but all of them have SSH keys, if only to use GitHub. However, the support for the signatures seems a bit rough at the moment.
Transactionally Staged Job Drains in Postgres
The article explains well how background jobs that run outside of a db transaction can have several categories or problems. However, job queues driven by relational databases sometimes don’t scale well, when compared to other queues. For example see
Sidekiq. The article presents a pattern that keeps the transactionality, but regains much of the performance by using a staging table for jobs, which drains into the actual job queue that will do the work.
Understanding GenStage back-pressure mechanism
Really concise explanation of what the concept of back-pressure means in Elixir, and how it can prevent overflow and the capacity of the system being exceeded.
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