xrpl::PeerFinder::Tuning Namespace Reference

Heuristically tuned constants. More...

Functions
static std::chrono::seconds const	kBootcacheCooldownTime (60)
constexpr std::chrono::seconds	kSecondsPerMessage (151)
constexpr std::chrono::seconds	kLiveCacheSecondsToLive (30)
constexpr std::chrono::seconds	kRecentAttemptDuration (60)

Variables
static constexpr auto	kSecondsPerConnect = 10
	Time to wait between making batches of connection attempts.
static constexpr auto	kMaxConnectAttempts = 20
	Maximum number of simultaneous connection attempts.
static constexpr auto	kOutPercent = 15
	The percentage of total peer slots that are outbound.
static constexpr auto	kMinOutCount = 10
	A hard minimum on the number of outgoing connections.
static constexpr auto	kDefaultMaxPeers = 21
	The default value of Config::maxPeers.
static constexpr auto	kMaxRedirects = 30
	Max redirects we will accept from one connection.
static std::array< int, 10 > const	kConnectionBackoff {{1, 1, 2, 3, 5, 8, 13, 21, 34, 55}}
static constexpr auto	kBootcacheSize = 1000
static constexpr auto	kBootcachePrunePercent = 10
constexpr std::uint32_t	kMaxHops = 6
constexpr std::uint32_t	kNumberOfEndpoints = 2 * kMaxHops
constexpr std::uint32_t	kNumberOfEndpointsMax
constexpr std::uint32_t	kRedirectEndpointCount = 10

Detailed Description

Heuristically tuned constants.

Function Documentation

kBootcacheCooldownTime()

std::chrono::seconds const xrpl::PeerFinder::Tuning::kBootcacheCooldownTime ( 60 )

static

kSecondsPerMessage()

std::chrono::seconds xrpl::PeerFinder::Tuning::kSecondsPerMessage ( 151 )

constexpr

kLiveCacheSecondsToLive()

std::chrono::seconds xrpl::PeerFinder::Tuning::kLiveCacheSecondsToLive ( 30 )

constexpr

kRecentAttemptDuration()

std::chrono::seconds xrpl::PeerFinder::Tuning::kRecentAttemptDuration ( 60 )

constexpr

Variable Documentation

kSecondsPerConnect

auto xrpl::PeerFinder::Tuning::kSecondsPerConnect = 10

staticconstexpr

Time to wait between making batches of connection attempts.

Definition at line 16 of file src/xrpld/peerfinder/detail/Tuning.h.

kMaxConnectAttempts

auto xrpl::PeerFinder::Tuning::kMaxConnectAttempts = 20

staticconstexpr

Maximum number of simultaneous connection attempts.

Definition at line 19 of file src/xrpld/peerfinder/detail/Tuning.h.

kOutPercent

auto xrpl::PeerFinder::Tuning::kOutPercent = 15

staticconstexpr

The percentage of total peer slots that are outbound.

The number of outbound peers will be the larger of the minOutCount and outPercent * Config::maxPeers specially rounded.

Definition at line 26 of file src/xrpld/peerfinder/detail/Tuning.h.

kMinOutCount

auto xrpl::PeerFinder::Tuning::kMinOutCount = 10

staticconstexpr

A hard minimum on the number of outgoing connections.

This is enforced outside the Logic, so that the unit test can use any settings it wants.

Definition at line 32 of file src/xrpld/peerfinder/detail/Tuning.h.

kDefaultMaxPeers

auto xrpl::PeerFinder::Tuning::kDefaultMaxPeers = 21

staticconstexpr

The default value of Config::maxPeers.

Definition at line 35 of file src/xrpld/peerfinder/detail/Tuning.h.

kMaxRedirects

auto xrpl::PeerFinder::Tuning::kMaxRedirects = 30

staticconstexpr

Max redirects we will accept from one connection.

Redirects are limited for security purposes, to prevent the address caches from getting flooded.

Definition at line 41 of file src/xrpld/peerfinder/detail/Tuning.h.

kConnectionBackoff

std::array<int, 10> const xrpl::PeerFinder::Tuning::kConnectionBackoff {{1, 1, 2, 3, 5, 8, 13, 21, 34, 55}}

static

Definition at line 49 of file src/xrpld/peerfinder/detail/Tuning.h.

kBootcacheSize

auto xrpl::PeerFinder::Tuning::kBootcacheSize = 1000

staticconstexpr

Definition at line 58 of file src/xrpld/peerfinder/detail/Tuning.h.

kBootcachePrunePercent

auto xrpl::PeerFinder::Tuning::kBootcachePrunePercent = 10

staticconstexpr

Definition at line 61 of file src/xrpld/peerfinder/detail/Tuning.h.

kMaxHops

std::uint32_t xrpl::PeerFinder::Tuning::kMaxHops = 6

constexpr

Definition at line 76 of file src/xrpld/peerfinder/detail/Tuning.h.

kNumberOfEndpoints

std::uint32_t xrpl::PeerFinder::Tuning::kNumberOfEndpoints = 2 * kMaxHops

constexpr

Definition at line 79 of file src/xrpld/peerfinder/detail/Tuning.h.

kNumberOfEndpointsMax

std::uint32_t xrpl::PeerFinder::Tuning::kNumberOfEndpointsMax

constexpr

Initial value:

                                          =
std::max<decltype(kNumberOfEndpoints)>(kNumberOfEndpoints * 2, 64)

Definition at line 82 of file src/xrpld/peerfinder/detail/Tuning.h.

kRedirectEndpointCount

std::uint32_t xrpl::PeerFinder::Tuning::kRedirectEndpointCount = 10

constexpr

Definition at line 86 of file src/xrpld/peerfinder/detail/Tuning.h.