>
> I was reading there are some commands to access a peer's mempool state.
> The purpose being to allow miners to recover faster after a reboot, I
> think?
>
The "mempool" command allows nodes to request the contents of a peers
memory pool, yes.
It is currently used by SPV clients to find transactions that were
broadcast before they were started up (but not yet confirmed).
> Reading peer mempool definitely allows recovering faster after a reboot.
> So does persisting mempool in a database locally.
0.9 has code to save the mempool to disk.
> But what can you learn about a node from its mempool? Basically, are there
> distinguishing
> features in the mempool, or could there be?
>
Er, you mean, distinguishing features beyond the nodes IP address?
The contents of the mempool may vary depending on when the node was started
and what it saw at what times. I guess it's distinguishing in a way, but
not in any important way. Nodes are not intended to be completely
indistinguishable, just indistinguishable enough that it doesn't matter
which you connect to.
> Are there transactions you can receive which go into your own mempool but
> which you don't forward?
I don't think so, unless there are quirks to do with sendrawtransaction
RPCs or strangely crafted wallet spends. Normally if a tx is in the mempool
it will be relayed.
> By the way, are there recommended places to go to compare features
> implemented by different wallet software?
>
I don't know of any such place, but I'm sure people have compiled tables
somewhere.
------------------------------------------------------------------------------
Rapidly troubleshoot problems before they affect your business. Most IT
organizations don't have a clear picture of how application performance
affects their revenue. With AppDynamics, you get 100% visibility into your
Java,.NET, & PHP application. Start your 15-day FREE TRIAL of AppDynamics Pro!
http://pubads.g.doubleclick.net/gampad/clk?id=84349831&iu=/4140/ostg.clktrk
_______________________________________________
Bitcoin-development mailing list
Bitcoin-development@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/bitcoin-development