Orders and OrderLimit

Alexey · May 11, 2023, 4:27am

storj/storj/blob/52ff7a66a07c35103b5730903030005eab0659c2/docs/blueprints/sparse-order-storage.md

# Sparse Order Storage Take 2

This blueprint describes a way to cut down on database traffic due to bandwidth
measurement and tracking enormously. It reduces used serial storage from
terabytes to a single boolean per node per hour.

## Background

Storj needs to measure bandwidth usage in a secure, cryptographic, and
correctly incentivized way to be able to pay storage node operators for the
bandwidth that the system uses from them.

Currently we use a system described in section 4.17 of the Storj V3 whitepaper,
though "bandwidth allocations" have become named "Order Limits" and
"restricted bandwidth allocations" have become named "Orders."

We track Order Limit serial numbers in the database, created at the time a
segment begins upload, and then we use that database for preventing storage
nodes from submitting the same Order more than once.

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And a high level overview: