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Qisutu is an open-source, self-hosted ticketing and service desk system built with Perl/CGI and MariaDB, featuring agent/customer portals, email processing, and REST API, with version 1.0.2 now stable for production use.
Lobste.rs has migrated its database from MariaDB to SQLite, resulting in lower CPU and memory usage, reduced costs, and improved site performance. The migration process and background are detailed.
Frappe Cloud investigated recurring database freezes affecting thousands of hosted sites by using eBPF tracing to monitor disk I/O at the kernel level, discovering a suspicious query pattern that triggered the incidents.