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nimbus-eth1/nimbus/sync/beacon/TODO.md
Jordan Hrycaj 7fe4023d1f
Beacon sync docu todo and async prototype update v2 (#2832) 
* Annotate `async` functions for non-exception tracking at compile time

details:
  This also requires some additional try/except catching in the function
  bodies.

* Update sync logic docu to what is to be updated

why:
  The understanding of details of how to accommodate for merging
  sub-chains of blocks or headers have changed. Some previous set-ups
  are outright wrong.
2024-11-05 11:39:45 +00:00

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Update sync state management to what is described in README.md

  1. For the moment, the events in update.nim need to be adjusted. This will fix an error where the CL forces the EL to fork internally by sending different head request headers with the same bock number.

  2. General scenario update. This is mostly error handling.

General TODO items

  • Update/resolve code fragments which are tagged FIXME

Open issues

1. Weird behaviour of the RPC/engine API

See issue #2816

2. Some assert

    Error: unhandled exception: key not found: 0x441a0f..027bc96a [AssertionDefect]

which happened on several holesky tests immediately after loging somehing like

    NTC 2024-10-31 21:37:34.728 Finalized blocks persisted   file=forked_chain.nim:231 numberOfBlocks=129 last=044d22843cbe baseNumber=2646764 baseHash=21ec11c1deac

or from another machine with literally the same exception text (but the stack-trace differs)

    NTC 2024-10-31 21:58:07.616 Finalized blocks persisted   file=forked_chain.nim:231 numberOfBlocks=129 last=9cbcc52953a8 baseNumber=2646857 baseHash=9db5c2ac537b