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What exactly is happening in src/validation.cpp and what is saved in mempool.dat, when is this data required, what happens if there is an issue saving or loading data from the file? The current mempool of a node is kept in RAM during node runtime. As node operators, miners, and users we want transactions that are in our mempool and our own priority for ...


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The ancestors of a mempool transaction T are unconfirmed transactions that this transaction T depends on in order to be included in the block chain (i.e. that are referenced by its inputs). The descendants of a mempool transaction T are (necessarily unconfirmed) transactions that depend on this transaction T in order to be included in the block chain (i.e. ...


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