Wez Furlong
2c396abcd2
When hooks were developed, they were essentially "forked" from the log file implementation and the back_pressure setting and semantics were carried over from there. Those semantics were to put an upper bound on the number of log records that could be submitted to the logger, causing the submitter to block until the logger could catch up and reducing system pressure overall by slowing things down. With log hooks we're spawning a parallel task in the tail end which meant that the back pressure was only partially effective: it didn't apply to the end-to-end processing of a log hook. This commit addresses that issue by introducing a semaphore that permits up to the configured back_pressure number of concurrent log hook tasks to be running at once, slowing things down when that limit is reached.
KumoMTA
KumoMTA is an open-source Message Transfer Agent (MTA) designed for high-performance outbound email functionality, similar to commercial enterprise MTAs such as Momentum, PowerMTA, and Halon.
The KumoMTA project was founded by a group of email industry veterans with decades of experience building and managing high-performance On-Prem MTAs and is supported by a community of some of the largest senders in the world.
Because it is designed for high-performance sending environments, KumoMTA is for experienced email operations professionals who are accustomed to high-performance sending environments and familiar with DevOps practices.
Learn more in our FAQ and at https://kumomta.com/.
Documentation
You can learn more about KumoMTA from the Documentation.
Community
Real-time discussion is available on Our Discord.
Developers
If you are interested in contributing/extending KumoMTA, take a look at DEVELOPERS.md. The #devel channel on Our Discord is for contributors to discuss KumoMTA development.
Reporting Bugs
See How to Report Bugs.
Getting Help
See How to Get Help. For paid support see https://kumomta.com/support.
Getting Updates
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We're available to talk about the project, book us at https://cal.com/team/kumomta/talk-with-kumomta.