package octez-shell-libs

  1. Overview
  2. Docs
package octez-shell-libs
Legend:
Library
Module
Module type
Parameter
Class
Class type

Bound the valid operations in the mempool by limiting both their cardinal and their total byte size.

type config = {
  1. max_operations : int;
    (*

    Maximal allowed number of valid operations in the mempool.

    *)
  2. max_total_bytes : int;
    (*

    Maximal allowed sum of the byte sizes of all valid operations in the mempool.

    *)
}

Mempool bounds.

They can be retrieved/set using RPCs GET/POST /chains/<chain>/mempool/filter.

val default_max_total_bytes : int

Default max_total_bytes is 10_000_000.

A block can have at most around 700k bytes of operations (see validation_passes in proto_xxx/lib_protocol/main.ml). So with this bound, a mempool can have the content of more than 10 blocks, which is more than enough.

val default_max_operations : int

Default max_operations is 10_000.

The smallest operations are around 140 bytes (e.g. 139 bytes for a (pre)attestation, 146 bytes for a delegation) so a block can have at most around 5_000 operations. But many operations are much larger, so in practice a block contains much less operations, so keeping 10_000 of them in the mempool is enough.

val default_config : config

Default bounds.

Encoding for config.

It is internally an object without any variable field, so it is possible to use it in a Data_encoding.merge_objs.

module type T = sig ... end

Interface of a mempool bounding module.

module Make (Proto : Tezos_protocol_environment.PROTOCOL) : T with type protocol_operation = Proto.operation

Build a mempool bounding module.

module Internal_for_tests : sig ... end
OCaml

Innovation. Community. Security.

GitHub Discord Twitter Peertube RSS
About
Changelog Releases Industrial Users Academic Users Why OCaml
Ecosystem
Packages Community Events OCaml Planet Jobs
Resources
Install OCaml Get Started Platform Tools Language Manual Standard Library API Books Exercises Papers OCaml Playground Logo
Policies
Carbon Footprint Governance Privacy Code of Conduct