ERROR - server failed: Error: incorrect magic 2a9315cb at 14742100 about electrs HOT 7 CLOSED

This is indeed unfortunate :(
Could you upload the problematic blk*.dat file (maybe to Dropbox/Drive), so I could analyze it?

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I am also plan to refactor the bulk indexing code soon, so it'll be easier to debug such issues.

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Where would that file be located?

Not sure where it's failing, don't understand the error code.

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Not sure where it's failing, don't understand the error code.

Sorry about that, the logging messages should be more informative...
The main issue is that the indexer tries to read blk*.dat files (from your full node), but the format of the blocks read from the disk seem to be incorrect.

Could you please attach the full log, or record the session using https://asciinema.org/?
(Please use the highest verbosity level, via -vvvv)

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I am also plan to refactor the bulk indexing code soon, so it'll be easier to debug such issues.

The refactoring was merged into master (#15), please try again with the latest code (2852020).
It should also log the problematic blk*.dat file, for easier debugging :)

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Update: please try again with the code from today (d422dc0).

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@duckartes Please try again with the latest commit: ebdc252
(it should skip invalid and already indexed blocks during initial indexing).

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