I have a bitcoin-qt and bitcoin-abc on same computer running, can both share the same beginning of the blockchain data file ? since they both have same history till point in time.
asked Oct 9, 2017 at 12:01
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1 Answer
It's not a documented feature, but Bitcoin Core and its derivatives only write to the last blk*.dat file, and only read the others. So you can create symlinks to have them share older files. I've done this (for testnet) and it worked fine.
answered Oct 9, 2017 at 13:33
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@HaddarMacdasi: I can't really think of any. Of course, if you decide to delete one, you'll have to move the files accordingly. Oct 9, 2017 at 16:06