CreateTransaction: suggest/enforce fee for big low-priority transactions to avoid backlog about bitcoin

[gasteve]

Is there another potential issue here? For transactions that, for one reason or another, don't get into a block in a reasonable amount of time, is there some criteria for which the network will drop (and thereby cancel) such transactions? (like a certain amount of time passing without being included in a block)

[molecular]

afaik, there is currently no mechanism that would drop transactions from local cache. They just stay there until found in a block.

It's been suggested to do that, though (like limit local cache to 5MB), in order to avoid DoS attack. It's probably not that simple, though.

Don't know if there's a github issue for this, if not, it certainly deserves one.

[gavinandresen]

Lets discuss on the forum: http://www.bitcoin.org/smf/index.php?topic=4009.msg57469

[jgarzik]

See pull request at #88