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Fix duplicate initial headers sync

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This commit is contained in:
UdjinM6 2018-04-14 21:38:53 +03:00
parent f585450062
commit 753ed61fb3
3 changed files with 24 additions and 6 deletions
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3
qa/rpc-tests/bip68-112-113-p2p.py
View File

@ -98,8 +98,9 @@ class BIP68_112_113Test(ComparisonTestFramework):
def setup_network(self):
# Must set the blockversion for this test
# Must also set '-maxtipage=600100' to allow syncing from very old blocks
self.nodes = start_nodes(self.num_nodes, self.options.tmpdir,
extra_args=[['-debug', '-whitelist=127.0.0.1', '-blockversion=4']],
extra_args=[['-debug', '-whitelist=127.0.0.1', '-blockversion=4', '-maxtipage=600100']],
binary=[self.options.testbinary])
def run_test(self):

4
qa/rpc-tests/maxuploadtarget.py
View File

@ -91,7 +91,7 @@ class MaxUploadTest(BitcoinTestFramework):
def setup_network(self):
# Start a node with maxuploadtarget of 200 MB (/24h)
self.nodes = []
self.nodes.append(start_node(0, self.options.tmpdir, ["-debug", "-maxuploadtarget=200", "-blockmaxsize=999000"]))
self.nodes.append(start_node(0, self.options.tmpdir, ["-debug", "-maxuploadtarget=200", "-blockmaxsize=999000", "-maxtipage="+str(2*60*60*24*7)]))
def run_test(self):
# Advance all nodes 2 weeks in the future
@ -205,7 +205,7 @@ class MaxUploadTest(BitcoinTestFramework):
#stop and start node 0 with 1MB maxuploadtarget, whitelist 127.0.0.1
print("Restarting nodes with -whitelist=127.0.0.1")
stop_node(self.nodes[0], 0)
self.nodes[0] = start_node(0, self.options.tmpdir, ["-debug", "-whitelist=127.0.0.1", "-maxuploadtarget=1", "-blockmaxsize=999000"])
self.nodes[0] = start_node(0, self.options.tmpdir, ["-debug", "-whitelist=127.0.0.1", "-maxuploadtarget=1", "-blockmaxsize=999000", "-maxtipage="+str(2*60*60*24*7)])
#recreate/reconnect 3 test nodes
test_nodes = []

23
src/net_processing.cpp
View File

@ -1682,7 +1682,24 @@ bool static ProcessMessage(CNode* pfrom, const std::string& strCommand, CDataStr
if (inv.type == MSG_BLOCK) {
UpdateBlockAvailability(pfrom->GetId(), inv.hash);
if (!fAlreadyHave && !fImporting && !fReindex && !mapBlocksInFlight.count(inv.hash)) {
if (fAlreadyHave || fImporting || fReindex || mapBlocksInFlight.count(inv.hash)) {
continue;
}
CNodeState *state = State(pfrom->id);
if (!state) {
continue;
}
// Download if this is a nice peer, or we have no nice peers and this one might do.
bool fFetch = state->fPreferredDownload || (nPreferredDownload == 0 && !pfrom->fOneShot);
// Only actively request headers from a single peer, unless we're close to end of initial download.
if ((nSyncStarted == 0 && fFetch) || pindexBestHeader->GetBlockTime() > GetAdjustedTime() - nMaxTipAge) {
// Make sure to mark this peer as the one we are currently syncing with etc.
state->fSyncStarted = true;
state->nHeadersSyncTimeout = GetTimeMicros() + HEADERS_DOWNLOAD_TIMEOUT_BASE + HEADERS_DOWNLOAD_TIMEOUT_PER_HEADER * (GetAdjustedTime() - pindexBestHeader->GetBlockTime())/(chainparams.GetConsensus().nPowTargetSpacing);
nSyncStarted++;
// We used to request the full block here, but since headers-announcements are now the
// primary method of announcement on the network, and since, in the case that a node
// fell back to inv we probably have a reorg which we should get the headers for first,
@ -3099,7 +3116,7 @@ bool SendMessages(CNode* pto, CConnman& connman, const std::atomic<bool>& interr
bool fFetch = state.fPreferredDownload || (nPreferredDownload == 0 && !pto->fClient && !pto->fOneShot); // Download if this is a nice peer, or we have no nice peers and this one might do.
if (!state.fSyncStarted && !pto->fClient && !fImporting && !fReindex) {
// Only actively request headers from a single peer, unless we're close to end of initial download.
if ((nSyncStarted == 0 && fFetch) || pindexBestHeader->GetBlockTime() > GetAdjustedTime() - 6 * 60 * 60) { // NOTE: was "close to today" and 24h in Bitcoin
if ((nSyncStarted == 0 && fFetch) || pindexBestHeader->GetBlockTime() > GetAdjustedTime() - nMaxTipAge) {
state.fSyncStarted = true;
state.nHeadersSyncTimeout = GetTimeMicros() + HEADERS_DOWNLOAD_TIMEOUT_BASE + HEADERS_DOWNLOAD_TIMEOUT_PER_HEADER * (GetAdjustedTime() - pindexBestHeader->GetBlockTime())/(consensusParams.nPowTargetSpacing);
nSyncStarted++;
@ -3418,7 +3435,7 @@ bool SendMessages(CNode* pto, CConnman& connman, const std::atomic<bool>& interr
// Check for headers sync timeouts
if (state.fSyncStarted && state.nHeadersSyncTimeout < std::numeric_limits<int64_t>::max()) {
// Detect whether this is a stalling initial-headers-sync peer
if (pindexBestHeader->GetBlockTime() <= GetAdjustedTime() - 6*60*60) { // was 24*60*60 in bitcoin
if (pindexBestHeader->GetBlockTime() <= GetAdjustedTime() - nMaxTipAge) {
if (nNow > state.nHeadersSyncTimeout && nSyncStarted == 1 && (nPreferredDownload - state.fPreferredDownload >= 1)) {
// Disconnect a (non-whitelisted) peer if it is our only sync peer,
// and we have others we could be using instead.