Per-Table Introspection: Run Count, Page Cache, Memtable Length
An embedded database has no daemon to scrape and no slow query log to tail, so MongrelDB Kit puts the storage engine's own per-table counters directly on the database handle.
Embedded
4 posts filed under embedded.
4
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Sep 2026
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The Single-Binary Economics of a Database
MongrelDB ships as one compiled binary per platform and one shared library per ABI, with cluster and cloud integrations excluded at compile time, and that shape is an economic decision as much as an engineering one.
Multi-Process File Locking for the Embedded Case
A pure embedded engine never has to think about other processes, but MongrelDB is also a server, so it takes an exclusive advisory lock at open, fails fast by default, waits politely when you ask it to, and pushes genuine multi-process access through the daemon instead of through the filesystem.
CDC and Replication in an Embedded Database
MongrelDB reconstructs change events from its own WAL and streams committed records to follower copies, so an embedded database can participate in replication and change data capture without bolting on a separate toolchain.