I commented out a few new lines at the bottom of test/functional/p2p_ibd_txrelay.py
It tests that nodes process certain transactions, after IBD. These new assertions
from upstream are failing, but it may be because our IBD / tx sharing logic is different.
We should revisit this.
We comment out a newly-added assert from the Bitcoin
side, because it's unclear how to replicate it
correctly in Elements.
Co-authored-by: Glenn Willen <gwillen@nerdnet.org>
When receiving unwanted headers from a peer, first check whether we have
recent "best known block" state for that peer. If not, accept one batch
of headers to refresh it. Otherwise, we can become stuck in a state where
we need blocks, but we don't know which peers have those blocks available.
This especially happens during startup, when we don't have this information
for any peers until we start processing header messages.
f6a916683d Add functional test for block announcements during initial headers sync (Suhas Daftuar)
05f7f31598 Reduce bandwidth during initial headers sync when a block is found (Suhas Daftuar)
Pull request description:
On startup, if our headers chain is more than a day behind current time, we'll pick one peer to sync headers with until our best headers chain is caught up (at that point, we'll try to sync headers with all peers).
However, if an INV for a block is received before our headers chain is caught up, we'll then start to sync headers from each peer announcing the block. This can result in doing a big headers sync with many (if not all) of our peers simultaneously, which wastes bandwidth.
This PR would reduce that overhead by picking (at most) one new peer to try syncing headers with whenever a new block is announced, prior to our headers chain being caught up.
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LarryRuane:
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dergoegge:
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achow101:
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Tree-SHA512: 0662000bd68db146f55981de4adc2e2b07cbfda222b1176569d61c22055e5556752ffd648426f69687ed1cc203105515e7304c12b915d6270df8e41a4a0e1eaa
If our headers chain is behind on startup, then if a block is found we'll try
to catch up from all peers announcing the block, in addition to our initial
headers-sync peer. This commit changes behavior so that in this situation,
we'll choose at most one peer announcing a block to additionally sync headers
from.
fadd8b2676 addrman: Use system time instead of adjusted network time (MarcoFalke)
Pull request description:
This changes addrman to use system time for address relay instead of the network adjusted time.
This is an improvement, because network time has multiple issues:
* It is non-monotonic, even if the system time is monotonic.
* It may be wrong, even if the system time is correct.
* It may be wrong, if the system time is wrong. For example, when the node has limited number of connections (`4`), or the system time is wrong by too much (more than +-70 minutes), or the system time only got wrong after timedata collected more than half of the entries while the time was correct, ...)
This may slightly degrade addr relay for nodes where timedata successfully adjusted the time. Addr relay can already deal with minor offsets of up to 10 minutes. Offsets larger than this should still allow addr relay and not result in a DoS.
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