Frappe Cloud experienced recurring MariaDB freezes affecting all customer sites on impacted servers, caused by information_schema queries triggering excessive disk I/O when cached table statistics were invalidated. The team debugged using eBPF kernel tracing and built a custom InnoDB parser that safely reads usage metrics with controlled I/O budgeting, eliminating the freeze incidents.
Infrastructure
Diagnosing Random MariaDB Freezes
Frappe Cloud traced MariaDB freeze incidents to information_schema queries invalidating cached table statistics under heavy I/O — debugged via eBPF kernel tracing and fixed with a controlled-budget InnoDB parser.
Monday, April 20, 2026 12:00 PM UTC2 MIN READSOURCE: LobstersBY sys://pipeline
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infrastructure