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Tune relaying of untrusted proposals & validations:

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In deciding whether to relay a proposal or validation, a server would
consider whether it was issued by a validator on that server's UNL.

While both trusted proposals and validations were always relayed,
the code prioritized relaying of untrusted proposals over untrusted
validations. While not technically incorrect, validations are
generally more "valuable" because they are required during the
consensus process, whereas proposals are not, strictly, required.

The commit introduces two new configuration options, allowing server
operators to fine-tune the relaying behavior:

The `[relay_proposals]` option controls the relaying behavior for
proposals received by this server. It has two settings: "trusted"
and "all" and the default is "trusted".

The `[relay_validations]` options controls the relaying behavior for
validations received by this server. It has two settings: "trusted"
and "all" and the default is "all".

This change does not require an amendment as it does not affect
transaction processing.
This commit is contained in:
Nik Bougalis
2020-05-05 23:40:55 -07:00
committed by manojsdoshi
parent ca664b17d3
commit 268e28a278
19 changed files with 405 additions and 214 deletions
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24
src/ripple/core/impl/Config.cpp
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@@ -397,6 +397,30 @@ Config::loadFromString(std::string const& fileContents)
if (getSingleSection(secConfig, SECTION_SSL_VERIFY, strTemp, j_))
SSL_VERIFY = beast::lexicalCastThrow<bool>(strTemp);
if (getSingleSection(secConfig, SECTION_RELAY_VALIDATIONS, strTemp, j_))
{
if (boost::iequals(strTemp, "all"))
RELAY_UNTRUSTED_VALIDATIONS = true;
else if (boost::iequals(strTemp, "trusted"))
RELAY_UNTRUSTED_VALIDATIONS = false;
else
Throw<std::runtime_error>(
"Invalid value specified in [" SECTION_RELAY_VALIDATIONS
"] section");
}
if (getSingleSection(secConfig, SECTION_RELAY_PROPOSALS, strTemp, j_))
{
if (boost::iequals(strTemp, "all"))
RELAY_UNTRUSTED_PROPOSALS = true;
else if (boost::iequals(strTemp, "trusted"))
RELAY_UNTRUSTED_PROPOSALS = false;
else
Throw<std::runtime_error>(
"Invalid value specified in [" SECTION_RELAY_PROPOSALS
"] section");
}
if (exists(SECTION_VALIDATION_SEED) && exists(SECTION_VALIDATOR_TOKEN))
Throw<std::runtime_error>("Cannot have both [" SECTION_VALIDATION_SEED
"] "