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Yes, this happens regularly. It's very difficult to prevent, because unconfirmed transactions are not guaranteed to expire after a known time. Your first transa
by joosters 10y ago
Yes, this happens regularly. It's very difficult to prevent, because unconfirmed transactions are not guaranteed to expire after a known time. Your first transaction has been broadcast across the whole network of nodes, all of which have different retention settings. Even if one node drops your transaction, it is possible that another node will re-broadcast it again.
- curiousgal 10y agoJust to clarify, unconfirmed transactions get dropped from the mempool after 3 days (default setting).
- joosters 10y agoThere have been unconfirmed transactions that got into a block after a week. All it takes is for one node to keep it a little bit longer. Also, if the node re-broadcasts it, other nodes might put it back into their pool.