Add retry delay to fix dropped transaction thrashing

[samholmes]

CHANGELOG

Does this branch warrant an entry to the CHANGELOG?

• Yes
• No

Dependencies

none

Description

none

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Note

Adds a 10s retry delay when re-queuing failed transaction updates and manages pending timeouts that are cleared on engine stop.

• UTXO engine (src/common/utxobased/engine/UtxoEngineProcessor.ts):
  • Introduces pendingTimeouts set and clears all on stop().
  • Extends CommonParams with pendingTimeouts and adds addPendingTimeout() utility.
  • In processCheckTransactionConfirmation error path, re-queues transactionUpdateCache[txId] after a 10s delay to prevent thrashing.
• CHANGELOG:
  • Notes fix: added retry delay to address dropped transaction thrashing.

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[paullinator]

Seems like a legit issue. The engine needs to keep track of pending setTimeouts and kill them on killEngine

[paullinator]

Added a fixup but not tested. give it a try

[samholmes]

I tested with my additional fixup