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Is it possible to use debug_traceTransaction with geth in light sync mode?

I'm doing this:

docker run -it -p 8545:8545 -p 30303:30303 ethereum/client-go --rpcapi debug,eth,web3,net --rpc --rpcaddr "0.0.0.0" --syncmode light

and then using truffle debug with a transaction in the mainnet. I get this error:

WARN [03-06|19:13:00.036] Served debug_traceTransaction            conn=172.17.0.1:59382 reqid=1583521980033 t=14.206µs err="the method debug_traceTransaction does not exist/is not available"

Notice that other debug_* methods do work, for example debug_gcStats.

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I do not believe so.

To make the trace possible in the first place, all the transaction data plus some extra needs to be saved on the disk. This is not done in the light sync mode to keep it light.

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  • That makes sense. I wonder if there's some way to debug transactions without syncing an archive node. Anyway, thanks!
    – Franco Victorio
    Commented Mar 6, 2020 at 20:44
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    I think you might be able trace live transactions and then discard data, but not sure if any clients support this kind of model.
    – Mikko Ohtamaa
    Commented Mar 9, 2020 at 9:21

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