DCR native wallet sync stuck at 99.9%

[norwnd]

Likely duplicate of #2857, #2917

I've been running Bison Wallet 1.0.0 for several hours now and was gonna place a DCR/USDT trade but got an error dcr still syncing. progress = 99.90%:

I have mostly decent network connection (and the rest of Bison Wallet functionality works fine), trading overall works fine so far. Not using any privacy or staking functionality of DCR native wallet either.

Restarting Bison Wallet helped immediately, no idea how to reproduce.

My guess would be:

• perhaps my internet connection got dropped at some point and DCR native wallet couldn't properly recover from it once it got back up
• or there is some kind of dead lock

[norwnd]

@norwnd Have you tried restarting the Bison Wallet or checking your internet connection to see if that helps?

This is mentioned in issue description.

[JoeGruffins]

Possibly related to #2971, as that bug happens at the end of sync.

If you still have the logs, do you see anything (ERR) about a channel being blocked? Or are there logs like in #2857 ?

[norwnd]

Possibly related to #2971, as that bug happens at the end of sync.

If you still have the logs, do you see anything (ERR) about a channel being blocked? Or are there logs like in #2857 ?

Yes I still have the logs, going over those I don't see any "suspicious" messages you posted in #2971 or #2857, in fact I don't see any errors related to DCR wallet except for this sequence of events:

2024-09-28 17:18:36.089 [DBG] CORE: Wallet synced for asset dcr
...
2024-09-29 10:03:44.741 [WRN] CORE: Wallet for asset dcr has zero network peers!
2024-09-29 10:03:44.748 [WRN] CORE: notify: |WARNING| (walletconfig) Wallet network issue - Decred wallet has no network peers!
...
2024-09-29 21:29:55.452 [ERR] WEB: error placing order: dcr still syncing. progress = 99.90%
...

That suggests to me: originally DCR wallet was successfully synced to 100% and then it lost peer connections (presumably due to my laptop sleeping or network dropping or both), and then nothing really happened as per my logs - I just couldn't place a DCR-related trade - it didn't recover from this until I restarted Bison wallet (even though in UI, as you can see on my screenshot, the Peer Count for DCR wallet always showed as 8 and I was able to place Polygon USDC/USDT trades just fine at all times).

Feels like 1 or 2 of these isn't working correctly for DCR SPV wallet:

• handling peer-rediscovery(reconnect) after different kinds of failures (network outage / laptop sleep)
• displaying correct number of active peer connections in UI

I don't have neutrino logs for this time period though (looks like only couple of days of those are stored by default).