improve 04-channel logging (backport #692)

CHANGELOG.md

@@ -34,6 +34,12 @@ Ref: https://keepachangelog.com/en/1.0.0/
 
 # Changelog
 
+## [v1.2.6](https://github.com/cosmos/ibc-go/releases/tag/v1.2.6) - 2021-01-12
+
+### Improvements
+
+* (channel) [\#692](https://github.com/cosmos/ibc-go/pull/692) Minimize channel logging by only emitting the packet sequence, source port/channel, destination port/channel upon packet receives, acknowledgements and timeouts.
+
 ## [v1.2.5](https://github.com/cosmos/ibc-go/releases/tag/v1.2.5) - 2021-12-15
 
 ### Dependencies
@@ -91,6 +97,12 @@ Ref: https://keepachangelog.com/en/1.0.0/
 
 * [\#386](https://github.com/cosmos/ibc-go/pull/386) Bump [tendermint](github.com/tendermint/tendermint) from v0.34.12 to v0.34.13.
 
+## [v1.1.6](https://github.com/cosmos/ibc-go/releases/tag/v1.1.6) - 2021-01-12
+
+### Improvements
+
+* (channel) [\#692](https://github.com/cosmos/ibc-go/pull/692) Minimize channel logging by only emitting the packet sequence, source port/channel, destination port/channel upon packet receives, acknowledgements and timeouts.
+
 ## [v1.1.5](https://github.com/cosmos/ibc-go/releases/tag/v1.1.5) - 2021-12-15
 
 ### Dependencies

docs/ibc/relayer.md

@@ -14,7 +14,7 @@ order: 4
 Events are emitted for every transaction processed by the base application to indicate the execution
 of some logic clients may want to be aware of. This is extremely useful when relaying IBC packets.
 Any message that uses IBC will emit events for the corresponding TAO logic executed as defined in
-the [IBC events spec](https://github.com/cosmos/ibc-go/blob/main/modules/core/spec/06_events.md).
+the [IBC events spec](../../modules/core/spec/06_events.md).
 
 In the SDK, it can be assumed that for every message there is an event emitted with the type `message`,
 attribute key `action`, and an attribute value representing the type of message sent 

modules/core/04-channel/keeper/packet.go

@@ -2,7 +2,6 @@ package keeper
 
 import (
 	"bytes"
-	"fmt"
 	"time"
 
 	sdk "github.com/cosmos/cosmos-sdk/types"
@@ -135,6 +134,7 @@ func (k Keeper) SendPacket(
 		"dst_port", packet.GetDestPort(),
 		"dst_channel", packet.GetDestChannel(),
 	)
+
 	return nil
 }
 
@@ -281,7 +281,14 @@ func (k Keeper) RecvPacket(
 	}
 
 	// log that a packet has been received & executed
-	k.Logger(ctx).Info("packet received", "packet", fmt.Sprintf("%v", packet))
+	k.Logger(ctx).Info(
+		"packet received",
+		"sequence", packet.GetSequence(),
+		"src_port", packet.GetSourcePort(),
+		"src_channel", packet.GetSourceChannel(),
+		"dst_port", packet.GetDestPort(),
+		"dst_channel", packet.GetDestChannel(),
+	)
 
 	// emit an event that the relayer can query for
 	EmitRecvPacketEvent(ctx, packet, channel)
@@ -345,7 +352,14 @@ func (k Keeper) WriteAcknowledgement(
 	)
 
 	// log that a packet acknowledgement has been written
-	k.Logger(ctx).Info("acknowledged written", "packet", fmt.Sprintf("%v", packet))
+	k.Logger(ctx).Info(
+		"acknowledgement written",
+		"sequence", packet.GetSequence,
+		"src_port", packet.GetSourcePort(),
+		"src_channel", packet.GetSourceChannel(),
+		"dst_port", packet.GetDestPort(),
+		"dst_channel", packet.GetDestChannel(),
+	)
 
 	EmitWriteAcknowledgementEvent(ctx, packet, channel, acknowledgement)
 
@@ -472,7 +486,14 @@ func (k Keeper) AcknowledgePacket(
 	k.deletePacketCommitment(ctx, packet.GetSourcePort(), packet.GetSourceChannel(), packet.GetSequence())
 
 	// log that a packet has been acknowledged
-	k.Logger(ctx).Info("packet acknowledged", "packet", fmt.Sprintf("%v", packet))
+	k.Logger(ctx).Info(
+		"packet acknowledged",
+		"sequence", packet.GetSequence,
+		"src_port", packet.GetSourcePort(),
+		"src_channel", packet.GetSourceChannel(),
+		"dst_port", packet.GetDestPort(),
+		"dst_channel", packet.GetDestChannel(),
+	)
 
 	// emit an event marking that we have processed the acknowledgement
 	EmitAcknowledgePacketEvent(ctx, packet, channel)

modules/core/04-channel/keeper/timeout.go

@@ -2,7 +2,6 @@ package keeper
 
 import (
 	"bytes"
-	"fmt"
 
 	sdk "github.com/cosmos/cosmos-sdk/types"
 	sdkerrors "github.com/cosmos/cosmos-sdk/types/errors"
@@ -157,7 +156,14 @@ func (k Keeper) TimeoutExecuted(
 		k.SetChannel(ctx, packet.GetSourcePort(), packet.GetSourceChannel(), channel)
 	}
 
-	k.Logger(ctx).Info("packet timed-out", "packet", fmt.Sprintf("%v", packet))
+	k.Logger(ctx).Info(
+		"packet timed-out",
+		"sequence", packet.GetSequence(),
+		"src_port", packet.GetSourcePort(),
+		"src_channel", packet.GetSourceChannel(),
+		"dst_port", packet.GetDestPort(),
+		"dst_channel", packet.GetDestChannel(),
+	)
 
 	// emit an event marking that we have processed the timeout
 	EmitTimeoutPacketEvent(ctx, packet, channel)