package octez-shell-libs

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Octez shell libraries

Install 

dune-project
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Authors

  1. T
    Tezos devteam

Maintainers

  1. C
    contact@tezos.com

Sources

tezos-18.1.tar.gz
sha256=aa2f5bc99cc4ca2217c52a1af2a2cdfd3b383208cb859ca2e79ca0903396ca1d
sha512=d68bb3eb615e3dcccc845fddfc9901c95b3c6dc8e105e39522ce97637b1308a7fa7aa1d271351d5933febd7476b2819e1694f31198f1f0919681f1f9cc97cb3a

doc/octez-shell-libs.shell/Tezos_shell/Prevalidator_bounding/index.html

Module Tezos_shell.Prevalidator_boundingSource

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

Sourcetype 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.

Sourceval 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.

Sourceval 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.

Sourceval default_config : config

Default bounds.

Sourceval config_encoding : config Tezos_base.TzPervasives.Data_encoding.t

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.

Sourcemodule type T = sig ... end

Interface of a mempool bounding module.

Build a mempool bounding module.

Sourcemodule Internal_for_tests : sig ... end