fix: mark ipns pubsub router DoNotWaitForStreamingResponses

That means if the DHT has finished searching and no one responded over pubsub *yet*, we will not spend 1 minute searching for no reason.

This also include other error handling bug fixes inside `go-libp2p-routing-helpers`.

Fixes: #9927

config/routing.go

@@ -164,10 +164,11 @@ type ComposableRouterParams struct {
 }
 
 type ConfigRouter struct {
-	RouterName   string
-	Timeout      Duration
-	IgnoreErrors bool
-	ExecuteAfter *OptionalDuration `json:",omitempty"`
+	RouterName                     string
+	Timeout                        Duration
+	IgnoreErrors                   bool
+	DoNotWaitForStreamingResponses bool
+	ExecuteAfter                   *OptionalDuration `json:",omitempty"`
 }
 
 type Method struct {

core/node/libp2p/routing.go

@@ -31,7 +31,8 @@ import (
 type Router struct {
 	routing.Routing
 
-	Priority int // less = more important
+	Priority                       int // less = more important
+	DoNotWaitForStreamingResponses bool
 }
 
 type p2pRouterOut struct {
@@ -197,8 +198,9 @@ func Routing(in p2pOnlineRoutingIn) irouting.ProvideManyRouter {
 	var cRouters []*routinghelpers.ParallelRouter
 	for _, v := range routers {
 		cRouters = append(cRouters, &routinghelpers.ParallelRouter{
-			IgnoreError: true,
-			Router:      v.Routing,
+			IgnoreError:                    true,
+			DoNotWaitForStreamingResponses: v.DoNotWaitForStreamingResponses,
+			Router:                         v.Routing,
 		})
 	}
 
@@ -244,7 +246,8 @@ func PubsubRouter(mctx helpers.MetricsCtx, lc fx.Lifecycle, in p2pPSRoutingIn) (
 					Namespaces: []string{"ipns"},
 				},
 			},
-			Priority: 100,
+			Priority:                       100,
+			DoNotWaitForStreamingResponses: true,
 		},
 	}, psRouter, nil
 }

docs/changelogs/v0.22.md

@@ -7,6 +7,7 @@
 - [Overview](#overview)
 - [🔦 Highlights](#-highlights)
   - [`ipfs name publish` now supports V2 only IPNS records](#ipfs-name-publish-now-supports-v2-only-ipns-records)
+  - [IPNS name resolution has been fixed](#ipns-name-resolution-has-been-fixed)
 - [📝 Changelog](#-changelog)
 - [👨‍👩‍👧‍👦 Contributors](#-contributors)
 
@@ -23,6 +24,15 @@ to V2 only in the future.
 
 **TODO**: add links to IPIP https://github.com/ipfs/specs/issues/376
 
+#### IPNS name resolution has been fixed
+
+IPNS name resolution used to always take 1 minute if the record was not yet cached.
+Even tho the DHT query most often finish in three digits miliseconds to single digits seconds.
+
+This has been fixed, it now takes as long as the DHT will take.
+
+For details see [#9927](https://github.com/ipfs/kubo/issues/9927) and [#10020](https://github.com/ipfs/kubo/pull/10020).
+
 ### 📝 Changelog
 
 ### 👨‍👩‍👧‍👦 Contributors

docs/config.md

@@ -1509,6 +1509,9 @@ Parallel:
     - `Timeout:duration`: Local timeout. It accepts strings compatible with Go `time.ParseDuration(string)` (`10s`, `1m`, `2h`). Time will start counting when this specific router is called, and it will stop when the router returns, or we reach the specified timeout.
     - `ExecuteAfter:duration`: Providing this param will delay the execution of that router at the specified time. It accepts strings compatible with Go `time.ParseDuration(string)` (`10s`, `1m`, `2h`).
     - `IgnoreErrors:bool`: It will specify if that router should be ignored if an error occurred.
+    - `DoNotWaitForStreamingResponses:bool`: Mark a router non blocking for streamin termination.
+      For streaming responses (`SearchValue` used by IPNS and `FindProvidersAsync` used to locate hosts for CIDs in the network), if some answer *has been found already* and all blocking routers are complete then cancel the query on non blocking routers,
+      for example if you have a LanDHT and a WanDHT, you can mark the LanDHT `"DoNotWaitForStreamingResponses": true`, this will make that if the LanDHT takes longer to complete than the WanDHT, the query on the LanDHT will be canceled if WanDHT has found some content.
   - `Timeout:duration`: Global timeout.  It accepts strings compatible with Go `time.ParseDuration(string)` (`10s`, `1m`, `2h`).
 
 Sequential:

docs/examples/kubo-as-a-library/go.mod

@@ -16,6 +16,7 @@ require (
 require (
 	bazil.org/fuse v0.0.0-20200117225306-7b5117fecadc // indirect
 	github.com/AndreasBriese/bbloom v0.0.0-20190825152654-46b345b51c96 // indirect
+	github.com/Jorropo/jsync v1.0.1 // indirect
 	github.com/alecthomas/units v0.0.0-20211218093645-b94a6e3cc137 // indirect
 	github.com/alexbrainman/goissue34681 v0.0.0-20191006012335-3fc7a47baff5 // indirect
 	github.com/benbjohnson/clock v1.3.5 // indirect
@@ -106,7 +107,7 @@ require (
 	github.com/libp2p/go-libp2p-pubsub v0.9.3 // indirect
 	github.com/libp2p/go-libp2p-pubsub-router v0.6.0 // indirect
 	github.com/libp2p/go-libp2p-record v0.2.0 // indirect
-	github.com/libp2p/go-libp2p-routing-helpers v0.7.0 // indirect
+	github.com/libp2p/go-libp2p-routing-helpers v0.7.1-0.20230719022107-fd78e08c072b // indirect
 	github.com/libp2p/go-libp2p-xor v0.1.0 // indirect
 	github.com/libp2p/go-mplex v0.7.0 // indirect
 	github.com/libp2p/go-msgio v0.3.0 // indirect

docs/examples/kubo-as-a-library/go.sum

@@ -45,6 +45,8 @@ github.com/AndreasBriese/bbloom v0.0.0-20190825152654-46b345b51c96 h1:cTp8I5+VIo
 github.com/AndreasBriese/bbloom v0.0.0-20190825152654-46b345b51c96/go.mod h1:bOvUY6CB00SOBii9/FifXqc0awNKxLFCL/+pkDPuyl8=
 github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
 github.com/BurntSushi/xgb v0.0.0-20160522181843-27f122750802/go.mod h1:IVnqGOEym/WlBOVXweHU+Q+/VP0lqqI8lqeDx9IjBqo=
+github.com/Jorropo/jsync v1.0.1 h1:6HgRolFZnsdfzRUj+ImB9og1JYOxQoReSywkHOGSaUU=
+github.com/Jorropo/jsync v1.0.1/go.mod h1:jCOZj3vrBCri3bSU3ErUYvevKlnbssrXeCivybS5ABQ=
 github.com/OneOfOne/xxhash v1.2.2 h1:KMrpdQIwFcEqXDklaen+P1axHaj9BSKzvpUUfnHldSE=
 github.com/OneOfOne/xxhash v1.2.2/go.mod h1:HSdplMjZKSmBqAxg5vPj2TmRDmfkzw+cTzAElWljhcU=
 github.com/aead/siphash v1.0.1/go.mod h1:Nywa3cDsYNNK3gaciGTWPwHt0wlpNV15vwmswBAUSII=
@@ -502,8 +504,8 @@ github.com/libp2p/go-libp2p-pubsub-router v0.6.0 h1:D30iKdlqDt5ZmLEYhHELCMRj8b4s
 github.com/libp2p/go-libp2p-pubsub-router v0.6.0/go.mod h1:FY/q0/RBTKsLA7l4vqC2cbRbOvyDotg8PJQ7j8FDudE=
 github.com/libp2p/go-libp2p-record v0.2.0 h1:oiNUOCWno2BFuxt3my4i1frNrt7PerzB3queqa1NkQ0=
 github.com/libp2p/go-libp2p-record v0.2.0/go.mod h1:I+3zMkvvg5m2OcSdoL0KPljyJyvNDFGKX7QdlpYUcwk=
-github.com/libp2p/go-libp2p-routing-helpers v0.7.0 h1:sirOYVD0wGWjkDwHZvinunIpaqPLBXkcnXApVHwZFGA=
-github.com/libp2p/go-libp2p-routing-helpers v0.7.0/go.mod h1:R289GUxUMzRXIbWGSuUUTPrlVJZ3Y/pPz495+qgXJX8=
+github.com/libp2p/go-libp2p-routing-helpers v0.7.1-0.20230719022107-fd78e08c072b h1:dc7aec2uIUNpzlSksfi3bepZH9OiOS4tPbMzrLqzyLE=
+github.com/libp2p/go-libp2p-routing-helpers v0.7.1-0.20230719022107-fd78e08c072b/go.mod h1:cHStPSRC/wgbfpb5jYdMP7zaSmc2wWcb1mkzNr6AR8o=
 github.com/libp2p/go-libp2p-testing v0.12.0 h1:EPvBb4kKMWO29qP4mZGyhVzUyR25dvfUIK5WDu6iPUA=
 github.com/libp2p/go-libp2p-xor v0.1.0 h1:hhQwT4uGrBcuAkUGXADuPltalOdpf9aag9kaYNT2tLA=
 github.com/libp2p/go-libp2p-xor v0.1.0/go.mod h1:LSTM5yRnjGZbWNTA/hRwq2gGFrvRIbQJscoIL/u6InY=

go.mod

@@ -52,7 +52,7 @@ require (
 	github.com/libp2p/go-libp2p-pubsub v0.9.3
 	github.com/libp2p/go-libp2p-pubsub-router v0.6.0
 	github.com/libp2p/go-libp2p-record v0.2.0
-	github.com/libp2p/go-libp2p-routing-helpers v0.7.0
+	github.com/libp2p/go-libp2p-routing-helpers v0.7.1-0.20230719022107-fd78e08c072b
 	github.com/libp2p/go-libp2p-testing v0.12.0
 	github.com/libp2p/go-socket-activation v0.1.0
 	github.com/mitchellh/go-homedir v1.1.0
@@ -91,6 +91,7 @@ require (
 
 require (
 	github.com/AndreasBriese/bbloom v0.0.0-20190825152654-46b345b51c96 // indirect
+	github.com/Jorropo/jsync v1.0.1 // indirect
 	github.com/Kubuxu/go-os-helper v0.0.1 // indirect
 	github.com/alecthomas/units v0.0.0-20211218093645-b94a6e3cc137 // indirect
 	github.com/alexbrainman/goissue34681 v0.0.0-20191006012335-3fc7a47baff5 // indirect

go.sum

@@ -47,6 +47,8 @@ github.com/AndreasBriese/bbloom v0.0.0-20190825152654-46b345b51c96 h1:cTp8I5+VIo
 github.com/AndreasBriese/bbloom v0.0.0-20190825152654-46b345b51c96/go.mod h1:bOvUY6CB00SOBii9/FifXqc0awNKxLFCL/+pkDPuyl8=
 github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
 github.com/BurntSushi/xgb v0.0.0-20160522181843-27f122750802/go.mod h1:IVnqGOEym/WlBOVXweHU+Q+/VP0lqqI8lqeDx9IjBqo=
+github.com/Jorropo/jsync v1.0.1 h1:6HgRolFZnsdfzRUj+ImB9og1JYOxQoReSywkHOGSaUU=
+github.com/Jorropo/jsync v1.0.1/go.mod h1:jCOZj3vrBCri3bSU3ErUYvevKlnbssrXeCivybS5ABQ=
 github.com/Kubuxu/go-os-helper v0.0.1 h1:EJiD2VUQyh5A9hWJLmc6iWg6yIcJ7jpBcwC8GMGXfDk=
 github.com/Kubuxu/go-os-helper v0.0.1/go.mod h1:N8B+I7vPCT80IcP58r50u4+gEEcsZETFUpAzWW2ep1Y=
 github.com/OneOfOne/xxhash v1.2.2 h1:KMrpdQIwFcEqXDklaen+P1axHaj9BSKzvpUUfnHldSE=
@@ -563,8 +565,8 @@ github.com/libp2p/go-libp2p-pubsub-router v0.6.0 h1:D30iKdlqDt5ZmLEYhHELCMRj8b4s
 github.com/libp2p/go-libp2p-pubsub-router v0.6.0/go.mod h1:FY/q0/RBTKsLA7l4vqC2cbRbOvyDotg8PJQ7j8FDudE=
 github.com/libp2p/go-libp2p-record v0.2.0 h1:oiNUOCWno2BFuxt3my4i1frNrt7PerzB3queqa1NkQ0=
 github.com/libp2p/go-libp2p-record v0.2.0/go.mod h1:I+3zMkvvg5m2OcSdoL0KPljyJyvNDFGKX7QdlpYUcwk=
-github.com/libp2p/go-libp2p-routing-helpers v0.7.0 h1:sirOYVD0wGWjkDwHZvinunIpaqPLBXkcnXApVHwZFGA=
-github.com/libp2p/go-libp2p-routing-helpers v0.7.0/go.mod h1:R289GUxUMzRXIbWGSuUUTPrlVJZ3Y/pPz495+qgXJX8=
+github.com/libp2p/go-libp2p-routing-helpers v0.7.1-0.20230719022107-fd78e08c072b h1:dc7aec2uIUNpzlSksfi3bepZH9OiOS4tPbMzrLqzyLE=
+github.com/libp2p/go-libp2p-routing-helpers v0.7.1-0.20230719022107-fd78e08c072b/go.mod h1:cHStPSRC/wgbfpb5jYdMP7zaSmc2wWcb1mkzNr6AR8o=
 github.com/libp2p/go-libp2p-testing v0.12.0 h1:EPvBb4kKMWO29qP4mZGyhVzUyR25dvfUIK5WDu6iPUA=
 github.com/libp2p/go-libp2p-testing v0.12.0/go.mod h1:KcGDRXyN7sQCllucn1cOOS+Dmm7ujhfEyXQL5lvkcPg=
 github.com/libp2p/go-libp2p-xor v0.1.0 h1:hhQwT4uGrBcuAkUGXADuPltalOdpf9aag9kaYNT2tLA=

routing/delegated.go

@@ -105,10 +105,11 @@ func parse(visited map[string]bool,
 			}
 
 			pr = append(pr, &routinghelpers.ParallelRouter{
-				Router:       ri,
-				IgnoreError:  cr.IgnoreErrors,
-				Timeout:      cr.Timeout.Duration,
-				ExecuteAfter: cr.ExecuteAfter.WithDefault(0),
+				Router:                         ri,
+				IgnoreError:                    cr.IgnoreErrors,
+				DoNotWaitForStreamingResponses: cr.DoNotWaitForStreamingResponses,
+				Timeout:                        cr.Timeout.Duration,
+				ExecuteAfter:                   cr.ExecuteAfter.WithDefault(0),
 			})
 
 		}