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Merge pull request #10096 from yyforyongyu/increase-gossip-default

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Increase the default outgoing bandwidth
This commit is contained in:
Olaoluwa Osuntokun
2025-07-25 15:34:01 -05:00
committed by GitHub
parent f4173dbb83 d0c07d76d2
commit 2e36f9b8b9
4 changed files with 21 additions and 13 deletions
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4
discovery/sync_manager.go
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@@ -32,12 +32,12 @@ const (
// This is the most that can be sent in a given go. Requests beyond
// this, will block indefinitely. Once tokens (bytes are depleted),
// they'll be refilled at the DefaultMsgBytesPerSecond rate.
DefaultMsgBytesBurst = 2 * 100 * 1_024
DefaultMsgBytesBurst = 2 * 1000 * 1_024
// DefaultMsgBytesPerSecond is the max bytes/s we'll permit for outgoing
// messages. Once tokens (bytes) have been taken from the bucket,
// they'll be refilled at this rate.
DefaultMsgBytesPerSecond = 100 * 1_024
DefaultMsgBytesPerSecond = 1000 * 1_024
// assumedMsgSize is the assumed size of a message if we can't compute
// its serialized size. This comes out to 1 KB.

4
docs/release-notes/release-notes-0.20.0.md
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@@ -74,6 +74,10 @@ circuit. The indices are only available for forwarding events saved after v0.20.
finish under this timeout value. Consider using a larger timeout value if you
have a slow network.
* The default value for `gossip.msg-rate-bytes` has been
[increased](https://github.com/lightningnetwork/lnd/pull/10096) from 100KB to
1MB, and `gossip.msg-burst-bytes` has been increased from 200KB to 2MB.
## lncli Additions

4
lncfg/gossip.go
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@@ -34,9 +34,9 @@ type Gossip struct {
AnnouncementConf uint32 `long:"announcement-conf" description:"The number of confirmations required before processing channel announcements."`
MsgRateBytes uint64 `long:"msg-rate-bytes" description:"The maximum number of bytes of gossip messages that will be sent per second. This is a global limit that applies to all peers."`
MsgRateBytes uint64 `long:"msg-rate-bytes" description:"The total rate of outbound gossip messages, expressed in bytes per second. This setting controls the long-term average speed of gossip traffic sent from your node. The rate limit is applied globally across all peers, not per-peer. If the rate of outgoing messages exceeds this value, lnd will start to queue and delay messages to stay within the limit."`
MsgBurstBytes uint64 `long:"msg-burst-bytes" description:"The maximum number of bytes of gossip messages that will be sent in a burst. This is a global limit that applies to all peers. This value should be set to something greater than 130 KB"`
MsgBurstBytes uint64 `long:"msg-burst-bytes" description:"The maximum burst of outbound gossip data, in bytes, that can be sent at once. This works in conjunction with gossip.msg-rate-bytes as part of a token bucket rate-limiting scheme. This value represents the size of the token bucket. It allows for short, high-speed bursts of traffic, with the long-term rate controlled by gossip.msg-rate-bytes. This value must be larger than the maximum lightning message size (~65KB) to allow sending large gossip messages."`
}
// Parse the pubkeys for the pinned syncers.

22
sample-lnd.conf
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@@ -1763,16 +1763,20 @@
; The number of confirmations required before processing channel announcements.
; gossip.announcement-conf=6
; The allotted bandwidth rate expressed in bytes/second that will be allocated
; towards outbound gossip messages. Realized rates above this value will be
; throttled. This value is shared across all peers.
; gossip.msg-rate-bytes=102400
; The total rate of outbound gossip messages, expressed in bytes per second.
; This setting controls the long-term average speed of gossip traffic sent from
; your node. The rate limit is applied globally across all peers, not per-peer.
; If the rate of outgoing messages exceeds this value, lnd will start to queue
; and delay messages to stay within the limit.
; gossip.msg-rate-bytes=1024000
; The amount of bytes of gossip messages that can be sent at a given time. This
; is used as the amount of tokens in the token bucket algorithm. This value
; MUST be set to something about 65 KB, otherwise a single max sized message
; can never be sent.
; gossip.msg-burst-bytes=204800
; The maximum burst of outbound gossip data, in bytes, that can be sent at once.
; This works in conjunction with `gossip.msg-rate-bytes` as part of a token
; bucket rate-limiting scheme. This value represents the size of the token
; bucket. It allows for short, high-speed bursts of traffic, with the long-term
; rate controlled by `gossip.msg-rate-bytes`. This value must be larger than the
; maximum lightning message size (~65KB) to allow sending large gossip messages.
; gossip.msg-burst-bytes=2048000
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