sqldb+invoices: fix incorrectly stored invoice expiries when using native SQL #8855

bhandras · 2024-06-21T17:12:51Z

Previously, when using the native schema, invoice expiries were incorrectly stored as 64-bit values (expiry in nanoseconds instead of seconds), causing overflow issues. Since we cannot determine the original values, we will set the expiries for existing invoices to 1 hour with this migration.

Based on #8854 only the last 5 commits are part of this PR.

coderabbitai · 2024-06-21T17:12:58Z

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saubyk · 2024-06-25T15:34:42Z

Since we cannot determine the original values

Question: Can you please elaborate on this? Is it because the precision will be lost when dividing the stored values by 1,000,000,000 to convert the nanoseconds into seconds?

bhandras · 2024-06-25T17:12:26Z

Since we cannot determine the original values

Question: Can you please elaborate on this? Is it because the precision will be lost when dividing the stored values by 1,000,000,000 to convert the nanoseconds into seconds?

Since 64-bit nanosecond values are truncated to 32 bits, we lose 32 bits of information, making it impossible to accurately determine the original intended values. Please note that this issue only affects newly stored invoices and only impacts users who are using native SQL.

sqldb/sqlc/migrations/000004_invoice_expiry_fix.down.sql

ProofOfKeags · 2024-06-26T21:47:58Z

sqldb/sqlc/migrations/000004_invoice_expiry_fix.up.sql

+-- Update the expiry to 3600 seconds (1 hour) for all records in the invoices
+-- table. This is needed as previously we stored raw time.Duration values which
+-- are 64 bit integers and are used to express duration in nanoseconds however
+-- the intent is to store invoice expiry in seconds.
+UPDATE invoices SET expiry = 3600;


sqldb/sqlite.go

ellemouton

Nice - tACK - LGTM ✅

tested the following:

Before this PR:

Add invoice
see that expiry watcher uses correct expiry
but incorrect expiry persisted
on restart, invoice immediately expired & payer cannot pay

Transitioning to this PR:

on master, add the invoice.
restart LND with this PR
see that persisted expiry is 3600
invoice is loaded & payer can pay

My main comment is around potentially matching the default expiry that LND actually uses for new invoices though, which is 24 hrs, not 1 hr.

sqldb/sqlc/migrations/000004_invoice_expiry_fix.down.sql

sqldb/migrations.go

sqldb/sqlite.go

sqldb/sqlc/migrations/000004_invoice_expiry_fix.up.sql

bhandras

Thank you for the thorough review and insightful comments @ellemouton! Much appreciated :)

sqldb/sqlite.go

sqldb/migrations.go

sqldb/sqlc/migrations/000004_invoice_expiry_fix.up.sql

sqldb/sqlite.go

docs/release-notes/release-notes-0.18.2.md

saubyk

LGTM 💾

ellemouton · 2024-07-01T17:01:17Z

@bhandras - just picked this up while going through some route blinding stuff: I see that for AMP invoices, our default is actually 30 days (instead of 24 hours like as for non-amp invoices). Is that potentially something we want to take into account?

bhandras · 2024-07-01T18:05:38Z

@bhandras - just picked this up while going through some route blinding stuff: I see that for AMP invoices, our default is actually 30 days (instead of 24 hours like as for non-amp invoices). Is that potentially something we want to take into account?

Good catch, thank you! Let me update the PR to also fix times for AMP invoices before we merge. Will re-req when done.

bhandras · 2024-07-02T17:12:23Z

List of changes since last round:

AMP invoices are migrated to 30d expiry
Fixed some issues with the postgres test helpers
Added coverage for AMP invoices as well as running the migration test for both sqlite and postgres
Switched from pq to pgx for consistency and because it is better maintained

Diff: https://github.com/lightningnetwork/lnd/compare/a50d8bd58bbc08bd0f75761315a6551a502664bc..b5661d6263cba46773971ccbf357dc70e7572460

PTAL :)

ellemouton

LGTM! 🚢

sqldb/migrations_test.go

Previously, when using the native schema, invoice expiries were incorrectly stored as 64-bit values (expiry in nanoseconds instead of seconds), causing overflow issues. Since we cannot determine the original values, we will set the expiries for existing invoices to 1 hour with this migration.

Based on: lightninglabs/taproot-assets#707

Completely switch to the better maintained pgx driver.

bhandras added the database Related to the database/storage of LND label Jun 21, 2024

bhandras self-assigned this Jun 21, 2024

bhandras added the migration label Jun 21, 2024

bhandras mentioned this pull request Jun 21, 2024

invoices: migrate KV invoices to native SQL for users of KV SQL backends #8831

Open

saubyk modified the milestones: 0.19.0, v0.18.1 Jun 21, 2024

bhandras marked this pull request as ready for review June 24, 2024 14:07

bhandras force-pushed the invoice-expiry-migration branch from 8a4ca1c to ea7f097 Compare June 25, 2024 13:57

saubyk added the P1 MUST be fixed or reviewed label Jun 25, 2024

saubyk requested review from ellemouton and ProofOfKeags June 25, 2024 16:42

ProofOfKeags approved these changes Jun 26, 2024

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bhandras force-pushed the invoice-expiry-migration branch from ea7f097 to 1dd86ad Compare June 27, 2024 20:48

ProofOfKeags approved these changes Jun 27, 2024

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ellemouton approved these changes Jun 27, 2024

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bhandras force-pushed the invoice-expiry-migration branch 2 times, most recently from c0fb4df to afe3d2e Compare June 28, 2024 13:42

bhandras commented Jun 28, 2024

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sqldb/sqlc/migrations/000004_invoice_expiry_fix.up.sql Outdated Show resolved Hide resolved

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bhandras force-pushed the invoice-expiry-migration branch from afe3d2e to a50d8bd Compare June 29, 2024 07:01

bhandras requested a review from saubyk June 29, 2024 07:01

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bhandras force-pushed the invoice-expiry-migration branch from a50d8bd to a779bc3 Compare July 2, 2024 17:10

bhandras requested a review from ellemouton July 2, 2024 17:11

bhandras force-pushed the invoice-expiry-migration branch 2 times, most recently from b5661d6 to eed34f8 Compare July 8, 2024 08:19

ellemouton approved these changes Jul 9, 2024

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bhandras added 6 commits July 9, 2024 08:39

sqldb: extract migration into method

5292c76

Based on: lightninglabs/taproot-assets#707

sqldb: add helpers to create test DBs migrated up to a select version

ed36598

sqldb: add unit test for the invoice expiry migration

95b9942

sqldb: switch away from pq to pgx for Postgres

d0c1cec

Completely switch to the better maintained pgx driver.

docs: update release notes for 0.18.3-beta

053faa6

bhandras force-pushed the invoice-expiry-migration branch from eed34f8 to 053faa6 Compare July 9, 2024 06:40

guggero approved these changes Jul 9, 2024

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guggero merged commit a965535 into lightningnetwork:master Jul 9, 2024
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sqldb+invoices: fix incorrectly stored invoice expiries when using native SQL #8855

sqldb+invoices: fix incorrectly stored invoice expiries when using native SQL #8855

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sqldb+invoices: fix incorrectly stored invoice expiries when using native SQL #8855

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