lm2

lm2 (listmap2) is an ordered key-value storage library.

It provides

• Ordered key-value data model
• Append-only modifications
• Fully durable, atomic writes
• Cursors with snapshot reads

Because it is append-only, records are never actually deleted. You will have to rewrite a collection to reclaim space.

License

BSD (see LICENSE)

Projects that use lm2

• Transverse uses lm2 to store metadata, and uses lm2 through the Rig for synchronous replication.
• Cistern uses lm2 for storing events.