public ConsensusStats(
CoinViewStack stack,
CoinView coinView,
ConsensusLoop consensusLoop,
ChainState chainState,
ConcurrentChain chain,
IConnectionManager connectionManager,
ILoggerFactory loggerFactory)
{
stack = new CoinViewStack(coinView);
this.cache = stack.Find <CachedCoinView>();
this.dbreeze = stack.Find <DBreezeCoinView>();
this.bottom = stack.Bottom;
this.consensusLoop = consensusLoop;
this.lookaheadPuller = this.consensusLoop.Puller as LookaheadBlockPuller;
this.lastSnapshot = consensusLoop.Validator.PerformanceCounter.Snapshot();
this.lastSnapshot2 = this.dbreeze?.PerformanceCounter.Snapshot();
this.lastSnapshot3 = this.cache?.PerformanceCounter.Snapshot();
this.chainState = chainState;
this.chain = chain;
this.connectionManager = connectionManager;
this.logger = loggerFactory.CreateLogger(this.GetType().FullName);
}
public ConsensusStats(
CoinView coinView,
IConsensusLoop consensusLoop,
IInitialBlockDownloadState initialBlockDownloadState,
ConcurrentChain chain,
IConnectionManager connectionManager,
IDateTimeProvider dateTimeProvider,
ILoggerFactory loggerFactory)
{
CoinViewStack stack = new CoinViewStack(coinView);
this.cache = stack.Find <CachedCoinView>();
this.dbreeze = stack.Find <DBreezeCoinView>();
this.bottom = stack.Bottom;
this.consensusLoop = consensusLoop;
this.lookaheadPuller = this.consensusLoop.Puller as LookaheadBlockPuller;
this.lastSnapshot = consensusLoop.ConsensusRules.PerformanceCounter.Snapshot();
this.lastSnapshot2 = this.dbreeze?.PerformanceCounter.Snapshot();
this.lastSnapshot3 = this.cache?.PerformanceCounter.Snapshot();
this.initialBlockDownloadState = initialBlockDownloadState;
this.chain = chain;
this.connectionManager = connectionManager;
this.dateTimeProvider = dateTimeProvider;
this.logger = loggerFactory.CreateLogger(this.GetType().FullName);
}
public ConsensusStats(
ICoinView coinView,
IConsensusManager consensusManager,
IConsensusRuleEngine consensusRules,
IInitialBlockDownloadState initialBlockDownloadState,
ConcurrentChain chain,
IConnectionManager connectionManager,
IDateTimeProvider dateTimeProvider,
IBlockPuller blockPuller,
ILoggerFactory loggerFactory,
INodeLifetime nodeLifetime)
{
var stack = new CoinViewStack(coinView);
this.cache = stack.Find <CachedCoinView>();
this.dbreeze = stack.Find <DBreezeCoinView>();
this.bottom = stack.Bottom;
this.consensusManager = consensusManager;
this.consensusRules = consensusRules;
this.lastSnapshot = consensusRules.PerformanceCounter.Snapshot();
this.lastSnapshot2 = this.dbreeze?.PerformanceCounter.Snapshot();
this.lastSnapshot3 = this.cache?.PerformanceCounter.Snapshot();
this.initialBlockDownloadState = initialBlockDownloadState;
this.chain = chain;
this.connectionManager = connectionManager;
this.dateTimeProvider = dateTimeProvider;
this.blockPuller = blockPuller;
this.logger = loggerFactory.CreateLogger(this.GetType().FullName);
this.nodeLifetime = nodeLifetime;
}
public void ValidSomeBlocks()
{
using (NodeContext ctx = NodeContext.Create(network: Network.Main))
{
var network = ctx.Network;
var chain = new ConcurrentChain(network.GetGenesis().Header);
if (network == NBitcoin.Network.Main)
{
chain.Load(GetFile("main.data", "https://aois.blob.core.windows.net/public/main.data"));
}
else
{
chain.Load(GetFile("test.data", "https://aois.blob.core.windows.net/public/test.data"));
}
var stack = new CoinViewStack(
new CacheCoinView(
new PrefetcherCoinView(
new BackgroundCommiterCoinView(
ctx.PersistentCoinView))));
var cache = stack.Find <CacheCoinView>();
var backgroundCommiter = stack.Find <BackgroundCommiterCoinView>();
ConsensusValidator valid = new ConsensusValidator(network.Consensus);
valid.UseConsensusLib = false;
Node node = Node.Connect(network, "yournode");
node.VersionHandshake();
var puller = new CustomNodeBlockPuller(chain, node);
var lastSnapshot = valid.PerformanceCounter.Snapshot();
var lastSnapshot2 = ctx.PersistentCoinView.PerformanceCounter.Snapshot();
var lastSnapshot3 = cache.PerformanceCounter.Snapshot();
foreach (var block in valid.Run(stack, puller))
{
if ((DateTimeOffset.UtcNow - lastSnapshot.Taken) > TimeSpan.FromSeconds(5.0))
{
Console.WriteLine();
Console.WriteLine("ActualLookahead :\t" + puller.ActualLookahead + " blocks");
Console.WriteLine("Downloaded Count :\t" + puller.RollingAverageDownloadedCount + " blocks");
Console.WriteLine("CoinViewTip :\t" + backgroundCommiter.Tip.Height);
Console.WriteLine("CommitingTip :\t" + backgroundCommiter.CommitingTip.Height);
Console.WriteLine("InnerTip :\t" + backgroundCommiter.InnerTip.Height);
Console.WriteLine("Cache entries :\t" + cache.CacheEntryCount);
var snapshot = valid.PerformanceCounter.Snapshot();
Console.Write(snapshot - lastSnapshot);
lastSnapshot = snapshot;
var snapshot2 = ctx.PersistentCoinView.PerformanceCounter.Snapshot();
Console.Write(snapshot2 - lastSnapshot2);
lastSnapshot2 = snapshot2;
var snapshot3 = cache.PerformanceCounter.Snapshot();
Console.Write(snapshot3 - lastSnapshot3);
lastSnapshot3 = snapshot3;
}
}
}
}
public void Constructor_CoinViewWithoutBackedCoinViews_SetsCoinViewAsTopAndBottom()
{
var coinView = new NonBackedCoinView();
var stack = new CoinViewStack(coinView);
Assert.True(stack.Top is NonBackedCoinView);
Assert.True(stack.Bottom is NonBackedCoinView);
}
public void Find_CoinViewNotFound_ReturnsNull()
{
var nonBackedCoinView = new NonBackedCoinView();
var stack = new CoinViewStack(nonBackedCoinView);
var coinView = stack.Find <BackedCoinView2>();
Assert.Null(coinView);
}
public void Constructor_CoinViewWithBackedCoinViews_SetsTopAndBottom()
{
var nonBackedCoinView = new NonBackedCoinView();
var backedCoinView2 = new BackedCoinView2(nonBackedCoinView);
var backedCoinView1 = new BackedCoinView1(backedCoinView2);
var stack = new CoinViewStack(backedCoinView1);
Assert.True(stack.Top is BackedCoinView1);
Assert.True(stack.Bottom is NonBackedCoinView);
}
public void Find_CoinViewWithinStack_ReturnsCoinView()
{
var nonBackedCoinView = new NonBackedCoinView();
var backedCoinView2 = new BackedCoinView2(nonBackedCoinView, 3);
var backedCoinView1 = new BackedCoinView1(backedCoinView2, 4);
var stack = new CoinViewStack(backedCoinView1);
var coinView = stack.Find <BackedCoinView2>();
Assert.True(coinView is BackedCoinView2);
Assert.Equal(3, coinView.OutputCount);
}
public void GetElements_NullCoinViewWithinStack_ReturnsNonNullCoinViews()
{
var backedCoinView2 = new BackedCoinView2(null);
var backedCoinView1 = new BackedCoinView1(backedCoinView2);
var stack = new CoinViewStack(backedCoinView1);
List <CoinView> coinViews = stack.GetElements().ToList();
Assert.Equal(2, coinViews.Count);
Assert.True(coinViews[0] is BackedCoinView1);
Assert.True(coinViews[1] is BackedCoinView2);
}
public void GetElements_CoinViewWithBackedCoinViews_ReturnsStack()
{
var nonBackedCoinView = new NonBackedCoinView();
var backedCoinView2 = new BackedCoinView2(nonBackedCoinView);
var backedCoinView1 = new BackedCoinView1(backedCoinView2);
var stack = new CoinViewStack(backedCoinView1);
List <CoinView> coinViews = stack.GetElements().ToList();
Assert.Equal(3, coinViews.Count);
Assert.True(coinViews[0] is BackedCoinView1);
Assert.True(coinViews[1] is BackedCoinView2);
Assert.True(coinViews[2] is NonBackedCoinView);
}
public ConsensusStats(FullNode fullNode, CoinViewStack stack)
{
this.fullNode = fullNode;
stack = new CoinViewStack(fullNode.CoinView);
cache = stack.Find <CachedCoinView>();
dbreeze = stack.Find <DBreezeCoinView>();
bottom = stack.Bottom;
lookaheadPuller = fullNode.ConsensusLoop.Puller as LookaheadBlockPuller;
lastSnapshot = fullNode.ConsensusLoop.Validator.PerformanceCounter.Snapshot();
lastSnapshot2 = dbreeze?.PerformanceCounter.Snapshot();
lastSnapshot3 = cache?.PerformanceCounter.Snapshot();
}
private Task RunLoop(CancellationToken cancellationToken)
{
try
{
var stack = new CoinViewStack(this.coinView);
CachedCoinView cache = stack.Find <CachedCoinView>();
var stats = new ConsensusStats(stack, this.coinView, this.consensusLoop, this.chainState, this.chain, this.connectionManager, this.loggerFactory);
ChainedBlock lastTip = this.consensusLoop.Tip;
foreach (BlockResult block in this.consensusLoop.Execute(cancellationToken))
{
if (this.consensusLoop.Tip.FindFork(lastTip) != lastTip)
{
this.logger.LogInformation("Reorg detected, rewinding from '{0}' to '{1}'.", lastTip.HashBlock, this.consensusLoop.Tip);
}
lastTip = this.consensusLoop.Tip;
cancellationToken.ThrowIfCancellationRequested();
if (block.Error != null)
{
this.logger.LogError("Block rejected: {0}", block.Error.Message);
// Pull again.
this.consensusLoop.Puller.SetLocation(this.consensusLoop.Tip);
if (block.Error == ConsensusErrors.BadWitnessNonceSize)
{
this.logger.LogInformation("You probably need witness information, activating witness requirement for peers.");
this.connectionManager.AddDiscoveredNodesRequirement(NodeServices.NODE_WITNESS);
this.consensusLoop.Puller.RequestOptions(TransactionOptions.Witness);
continue;
}
// Set the PoW chain back to ConsensusLoop.Tip.
this.chain.SetTip(this.consensusLoop.Tip);
// Since ChainHeadersBehavior check PoW, MarkBlockInvalid can't be spammed.
this.logger.LogError("Marking block as invalid.");
this.chainState.MarkBlockInvalid(block.Block.GetHash());
}
if (block.Error == null)
{
this.chainState.HighestValidatedPoW = this.consensusLoop.Tip;
// We really want to flush if we are at the top of the chain.
// Otherwise, we just allow the flush to happen if it is needed.
bool forceFlush = this.chain.Tip.HashBlock == block.ChainedBlock?.HashBlock;
this.consensusLoop.FlushAsync(forceFlush).GetAwaiter().GetResult();
this.signals.SignalBlock(block.Block);
}
// TODO: Replace this with a signalling object.
if (stats.CanLog)
{
stats.Log();
}
}
}
catch (Exception ex)
{
if (ex is OperationCanceledException)
{
if (this.nodeLifetime.ApplicationStopping.IsCancellationRequested)
{
return(Task.FromException(ex));
}
}
// TODO Need to revisit unhandled exceptions in a way that any process can signal an exception has been
// thrown so that the node and all the disposables can stop gracefully.
this.logger.LogDebug("Exception occurred in consensus loop: {0}", ex.ToString());
this.logger.LogCritical(new EventId(0), ex, "Consensus loop at Tip:{0} unhandled exception {1}", this.consensusLoop.Tip?.Height, ex.ToString());
NLog.LogManager.Flush();
throw;
}
return(Task.CompletedTask);
}
private void RunLoop()
{
try
{
var stack = new CoinViewStack(this.coinView);
var cache = stack.Find <CachedCoinView>();
var stats = new ConsensusStats(stack, this.coinView, this.consensusLoop, this.chainState, this.chain, this.connectionManager, this.loggerFactory);
var cancellationToken = this.nodeLifetime.ApplicationStopping;
ChainedBlock lastTip = this.consensusLoop.Tip;
foreach (var block in this.consensusLoop.Execute(cancellationToken))
{
if (this.consensusLoop.Tip.FindFork(lastTip) != lastTip)
{
this.logger.LogInformation("Reorg detected, rewinding from " + lastTip.Height + " (" + lastTip.HashBlock + ") to " + this.consensusLoop.Tip.Height + " (" + this.consensusLoop.Tip.HashBlock + ")");
}
lastTip = this.consensusLoop.Tip;
cancellationToken.ThrowIfCancellationRequested();
if (block.Error != null)
{
this.logger.LogError("Block rejected: " + block.Error.Message);
//Pull again
this.consensusLoop.Puller.SetLocation(this.consensusLoop.Tip);
if (block.Error == ConsensusErrors.BadWitnessNonceSize)
{
this.logger.LogInformation("You probably need witness information, activating witness requirement for peers.");
this.connectionManager.AddDiscoveredNodesRequirement(NodeServices.NODE_WITNESS);
this.consensusLoop.Puller.RequestOptions(TransactionOptions.Witness);
continue;
}
//Set the PoW chain back to ConsensusLoop.Tip
this.chain.SetTip(this.consensusLoop.Tip);
//Since ChainHeadersBehavior check PoW, MarkBlockInvalid can't be spammed
this.logger.LogError("Marking block as invalid");
this.chainState.MarkBlockInvalid(block.Block.GetHash());
}
if (block.Error == null)
{
this.chainState.HighestValidatedPoW = this.consensusLoop.Tip;
if (this.chain.Tip.HashBlock == block.ChainedBlock?.HashBlock)
{
this.consensusLoop.FlushAsync();
}
this.signals.SignalBlock(block.Block);
}
// TODO: replace this with a signalling object
if (stats.CanLog)
{
stats.Log();
}
}
}
catch (Exception ex)
{
if (ex is OperationCanceledException)
{
if (this.nodeLifetime.ApplicationStopping.IsCancellationRequested)
{
return;
}
}
// TODO Need to revisit unhandled exceptions in a way that any process can signal an exception has been
// thrown so that the node and all the disposables can stop gracefully.
this.logger.LogCritical(new EventId(0), ex, "Consensus loop unhandled exception (Tip:" + this.consensusLoop.Tip?.Height + ")");
throw;
}
}
public void ValidSomeBlocks()
{
using (NodeContext ctx = NodeContext.Create(network: Network.Main, clean: false))
{
var network = ctx.Network;
var chain = new ConcurrentChain(network.GetGenesis().Header);
if (network == NBitcoin.Network.Main)
{
chain.Load(GetFile("main.data", "https://aois.blob.core.windows.net/public/main.data"));
}
else
{
chain.Load(GetFile("test.data", "https://aois.blob.core.windows.net/public/test.data"));
}
//var threads = new CustomThreadPoolTaskScheduler(10, 100, "Parallel Coin Fetcher");
var stack = new CoinViewStack(
new CacheCoinView(
// PrefetcherCoinView(
//new ParallelCoinView(threads,
new BackgroundCommiterCoinView(
ctx.PersistentCoinView))); //);
//new InMemoryCoinView(chain.Genesis));
var bottom = stack.Bottom;
var cache = stack.Find <CacheCoinView>();
var backgroundCommiter = stack.Find <BackgroundCommiterCoinView>();
ConsensusValidator valid = new ConsensusValidator(network.Consensus);
valid.UseConsensusLib = false;
Node node = Node.Connect(network, "yournode");
node.VersionHandshake();
var puller = new CustomNodeBlockPuller(chain, node);
var lastSnapshot = valid.PerformanceCounter.Snapshot();
var lastSnapshot2 = ctx.PersistentCoinView.PerformanceCounter.Snapshot();
var lastSnapshot3 = cache == null ? null : cache.PerformanceCounter.Snapshot();
foreach (var block in valid.Run(stack, puller))
{
if ((DateTimeOffset.UtcNow - lastSnapshot.Taken) > TimeSpan.FromSeconds(5.0))
{
Console.WriteLine();
Console.WriteLine("ActualLookahead :\t" + puller.ActualLookahead + " blocks");
Console.WriteLine("Median Downloaded :\t" + puller.MedianDownloadCount + " blocks");
if (backgroundCommiter != null)
{
Console.WriteLine("CoinViewTip :\t" + backgroundCommiter.Tip.Height);
Console.WriteLine("CommitingTip :\t" + backgroundCommiter.CommitingTip.Height);
}
Console.WriteLine("Bottom Tip :\t" + bottom.Tip.Height);
if (cache != null)
{
Console.WriteLine("Cache entries :\t" + cache.CacheEntryCount);
}
var snapshot = valid.PerformanceCounter.Snapshot();
Console.Write(snapshot - lastSnapshot);
lastSnapshot = snapshot;
var snapshot2 = ctx.PersistentCoinView.PerformanceCounter.Snapshot();
Console.Write(snapshot2 - lastSnapshot2);
lastSnapshot2 = snapshot2;
if (cache != null)
{
var snapshot3 = cache.PerformanceCounter.Snapshot();
Console.Write(snapshot3 - lastSnapshot3);
lastSnapshot3 = snapshot3;
}
}
}
}
}
void RunLoop()
{
try
{
var stack = new CoinViewStack(CoinView);
var cache = stack.Find <CachedCoinView>();
var stats = new ConsensusStats(this, stack);
var cancellationToken = this.GlobalCancellation.Cancellation.Token;
ChainedBlock lastTip = ConsensusLoop.Tip;
foreach (var block in ConsensusLoop.Execute(cancellationToken))
{
bool reorg = false;
if (ConsensusLoop.Tip.FindFork(lastTip) != lastTip)
{
reorg = true;
Logs.FullNode.LogInformation("Reorg detected, rewinding from " + lastTip.Height + " (" + lastTip.HashBlock + ") to " + ConsensusLoop.Tip.Height + " (" + ConsensusLoop.Tip.HashBlock + ")");
}
lastTip = ConsensusLoop.Tip;
cancellationToken.ThrowIfCancellationRequested();
if (block.Error != null)
{
Logs.FullNode.LogError("Block rejected: " + block.Error.Message);
//Pull again
ConsensusLoop.Puller.SetLocation(ConsensusLoop.Tip);
if (block.Error == ConsensusErrors.BadWitnessNonceSize)
{
Logs.FullNode.LogInformation("You probably need witness information, activating witness requirement for peers.");
ConnectionManager.AddDiscoveredNodesRequirement(NodeServices.NODE_WITNESS);
ConsensusLoop.Puller.RequestOptions(TransactionOptions.Witness);
continue;
}
//Set the PoW chain back to ConsensusLoop.Tip
Chain.SetTip(ConsensusLoop.Tip);
//Since ChainBehavior check PoW, MarkBlockInvalid can't be spammed
Logs.FullNode.LogError("Marking block as invalid");
_ChainBehaviorState.MarkBlockInvalid(block.ChainedBlock.HashBlock);
}
if (!reorg && block.Error == null)
{
_ChainBehaviorState.HighestValidatedPoW = ConsensusLoop.Tip;
if (Chain.Tip.HashBlock == block.ChainedBlock?.HashBlock)
{
var unused = cache.FlushAsync();
}
this.Signals.Blocks.Broadcast(block.Block);
}
// TODO: replace this with a signalling object
if (stats.CanLog)
{
stats.Log();
}
}
}
catch (Exception ex) //TODO: Barbaric clean exit
{
if (ex is OperationCanceledException)
{
if (this.GlobalCancellation.Cancellation.IsCancellationRequested)
{
return;
}
}
if (!IsDisposed)
{
Logs.FullNode.LogCritical(new EventId(0), ex, "Consensus loop unhandled exception (Tip:" + ConsensusLoop.Tip?.Height + ")");
_UncatchedException = ex;
Dispose();
}
}
}
