routerrpc: add a default value for timeout_seconds in SendPaymentV2 #9359

NishantBansal2003 · 2024-12-14T12:40:17Z

Change Description

Description of change / link to associated issue.
This PR introduces a default value of 60 seconds for the timeout_seconds field in the SendPaymentV2 RPC call in the routerrpc.SendPaymentRequest.

Fixes: #9282

Steps to Test

Test with explicit timeout_seconds values:

Make an RPC call to SendPaymentV2 with a valid non-zero value for timeout_seconds.
Verify that the request behaves as expected and uses the provided value.

Test without timeout_seconds:

Make an RPC call to SendPaymentV2 without including the timeout_seconds field.
Verify that the default value of 60 seconds is applied and used during the request.

Pull Request Checklist

Testing

Your PR passes all CI checks.
Tests covering the positive and negative (error paths) are included.
Bug fixes contain tests triggering the bug to prevent regressions.

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The change obeys the Code Documentation and Commenting guidelines, and lines wrap at 80.
Commits follow the Ideal Git Commit Structure.
Any new logging statements use an appropriate subsystem and logging level.
Any new lncli commands have appropriate tags in the comments for the rpc in the proto file.
There is a change description in the release notes, or [skip ci] in the commit message for small changes.

📝 Please see our Contribution Guidelines for further guidance.

coderabbitai · 2024-12-14T12:40:24Z

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yyforyongyu

Thanks for the PR. A few suggestions to complete the change,

we should update the SendpaymentRequest in router.proto and make the field timeout_seconds optional, also need to update the docs there to make it clear that this field is now optional.
we then update both the cli and the RPC to not check the timeout value.
we should also update some of the itests to validate the new behavior that we don't check for timeout values, which can be any of the cases that use TimeoutSeconds: 60 when making a payment, and we can simply remove it there to validate the new behavior.

yyforyongyu · 2024-12-16T00:55:31Z

lnrpc/routerrpc/router_server.go

@@ -344,6 +344,11 @@ func (r *ServerShell) CreateSubServer(configRegistry lnrpc.SubServerConfigDispat
 func (s *Server) SendPaymentV2(req *SendPaymentRequest,
 	stream Router_SendPaymentV2Server) error {

+	// Set payment request attempt timeout.
+	if req.TimeoutSeconds == 0 {
+		req.TimeoutSeconds = 60


Think we should make this a constant var DefaultPaymentTimeout and use it here.

NishantBansal2003 · 2024-12-16T18:46:03Z

Hey @yyforyongyu, thanks for the review! I made some modifications based on your feedback. Could you please check if everything is covered, or if I need to check anything further?
Also, could you let me know in which file I should add the changelog entry—0.18.4 or 0.19.0?

NishantBansal2003 · 2024-12-19T09:06:13Z

Hey @yyforyongyu, thanks for the review! I made some modifications based on your feedback. Could you please check if everything is covered, or if I need to check anything further? Also, could you let me know in which file I should add the changelog entry—0.18.4 or 0.19.0?

cc: @yyforyongyu @guggero, just pinging again in case the last message was missed.

guggero · 2024-12-19T09:42:53Z

Hey @yyforyongyu, thanks for the review! I made some modifications based on your feedback. Could you please check if everything is covered, or if I need to check anything further? Also, could you let me know in which file I should add the changelog entry—0.18.4 or 0.19.0?

cc: @yyforyongyu @guggero, just pinging again in case the last message was missed.

v0.18.4 was just released, so 0.19.

yyforyongyu · 2024-12-19T09:41:10Z

lnrpc/routerrpc/router.proto

+    An optional upper limit on the amount of time we should spend when
+    attempting to fulfill the payment. This is expressed in seconds. If we
+    cannot make a successful payment within this time frame, an error will be
+    returned. This field must be non-zero.


we should also mention the default value of 60s is used when the field is not set, and when setting the field, a value of 0 is not allowed, and we should change the below field to optional int32 timeout_seconds = 6.

Then when we check it, we first check if the field is set by checking if it's nil, if set, we require it to be not zero, otherwise, use the default 60s.

Since timeout_seconds is of type int32 and not a pointer, its default value will be 0 if it is not set. Therefore, whether timeout_seconds is not specified or explicitly set to 0, I have implemented logic to default it to 60 seconds.

Please let me know if there is anything else I need to address.

Can you run make rpc first? Then you'll know what i meant

Done. Thanks for the help! I will make sure to learn from this and avoid making the same mistake in the future.

Wanted to comment about backward compatibility of changing the behavior of the field. But doesn't seem to be an issue, according to this: https://stackoverflow.com/a/76375904
So that seems to be the right approach indeed for this situation.

itest/lnd_amp_test.go

Signed-off-by: Nishant Bansal <[email protected]> routerrpc: update itests to validate default timeout_seconds Signed-off-by: Nishant Bansal <[email protected]>

NishantBansal2003 · 2024-12-23T06:24:19Z

Hey @yyforyongyu, I’ve made the required modifications. Please take a look.

lightninglabs-deploy · 2024-12-30T06:37:53Z

@yyforyongyu: review reminder
@NishantBansal2003, remember to re-request review from reviewers when ready

NishantBansal2003 · 2025-01-03T17:31:07Z

@yyforyongyu: review reminder @NishantBansal2003, remember to re-request review from reviewers when ready

Hey @yyforyongyu, just following up to see if there are any additional reviews pending on this PR?

NishantBansal2003 mentioned this pull request Dec 14, 2024

[feature]: add a default value for timeout_seconds in SendPaymentV2 routerrpc.SendPaymentRequest #9282

Open

NishantBansal2003 force-pushed the fix-timeout branch 2 times, most recently from c5537ef to 18d4ff0 Compare December 14, 2024 18:27

yyforyongyu requested changes Dec 16, 2024

View reviewed changes

NishantBansal2003 requested a review from yyforyongyu December 16, 2024 18:55

saubyk assigned NishantBansal2003 Dec 17, 2024

yyforyongyu reviewed Dec 19, 2024

View reviewed changes

NishantBansal2003 force-pushed the fix-timeout branch 2 times, most recently from 7866d62 to a6bd8c1 Compare December 19, 2024 12:27

NishantBansal2003 requested a review from yyforyongyu December 19, 2024 12:33

saubyk added this to the v0.19.0 milestone Dec 19, 2024

NishantBansal2003 force-pushed the fix-timeout branch from a6bd8c1 to d858578 Compare December 20, 2024 13:01

routerrpc: add a default value for timeout_seconds in SendPaymentV2

2c4b55c

Signed-off-by: Nishant Bansal <[email protected]> routerrpc: update itests to validate default timeout_seconds Signed-off-by: Nishant Bansal <[email protected]>

NishantBansal2003 force-pushed the fix-timeout branch from d858578 to 2c4b55c Compare December 20, 2024 16:38

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routerrpc: add a default value for timeout_seconds in SendPaymentV2 #9359

routerrpc: add a default value for timeout_seconds in SendPaymentV2 #9359

NishantBansal2003 commented Dec 14, 2024

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routerrpc: add a default value for timeout_seconds in SendPaymentV2 #9359

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routerrpc: add a default value for timeout_seconds in SendPaymentV2 #9359

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NishantBansal2003 commented Dec 14, 2024

Change Description

Steps to Test

Test with explicit timeout_seconds values:

Test without timeout_seconds:

Pull Request Checklist

Testing

Code Style and Documentation

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