Improve performance of dump-ledger #4361
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Looks good, thanks for the optimization. In order to get past the cargo-deny check you just need to change deny.toml like here: dmkozh@aa935a9#diff-1040309c64844eb1b6b63d8fd67938adbf9461f1b3c61f12cf738f064a02d3de |
As per standard, std::optional copies/moves the underlying object but asio::io_context cannot be moved/copied.
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Description
This PR changes how dump-ledger operate as to use a lot less memory:
previously running a command such as
stellar-core dump-ledger --output-file out.json --group-by "data.type" --agg "count()"against pubnet would crash nodes by using up all memory (16GB).This version uses much less memory (peaks at 4GB) by not storing the current bucket in memory and not storing all seen keys from the bucket list in RAM.
This PR also includes a couple compile/link fixes for Windows.