public void PruneRepository_PruneAndCompact_FromGenesis_OnStartUp()
{
var posBlocks = CreatePosBlocks(50);
var chainedHeaderTip = BuildProvenHeaderChainFromBlocks(posBlocks);
var dataFolderPath = CreateTestDir(this);
var dataFolder = new DataFolder(dataFolderPath);
var dBreezeSerializer = new DataStoreSerializer(this.Network.Consensus.ConsensusFactory);
var blockRepository = new BlockRepository(this.Network, dataFolder, this.LoggerFactory.Object, dBreezeSerializer);
blockRepository.PutBlocks(new HashHeightPair(posBlocks.Last().GetHash(), 50), posBlocks);
var storeSettings = new StoreSettings(NodeSettings.Default(this.Network))
{
AmountOfBlocksToKeep = 10
};
var prunedBlockRepository = new PrunedBlockRepository(blockRepository, dBreezeSerializer, this.LoggerFactory.Object, storeSettings);
prunedBlockRepository.Initialize();
prunedBlockRepository.PruneAndCompactDatabase(chainedHeaderTip.GetAncestor(50), this.Network, true);
// The first prune will delete blocks from 40 to 0.
Assert.Equal(chainedHeaderTip.GetAncestor(40).HashBlock, prunedBlockRepository.PrunedTip.Hash);
Assert.Equal(chainedHeaderTip.GetAncestor(40).Height, prunedBlockRepository.PrunedTip.Height);
// Ensure that the block has been deleted from disk.
Assert.Null(blockRepository.GetBlock(chainedHeaderTip.GetAncestor(39).HashBlock));
}
public void PruneRepository_PruneAndCompact_OnShutDown()
{
var posBlocks = CreatePosBlocks(50);
var chainedHeaderTip = BuildProvenHeaderChainFromBlocks(posBlocks);
var dataFolderPath = CreateTestDir(this);
var dataFolder = new DataFolder(dataFolderPath);
var dBreezeSerializer = new DataStoreSerializer(this.Network.Consensus.ConsensusFactory);
var blockRepository = new BlockRepository(this.Network, dataFolder, this.LoggerFactory.Object, dBreezeSerializer);
blockRepository.PutBlocks(new HashHeightPair(posBlocks.Last().GetHash(), 50), posBlocks);
var storeSettings = new StoreSettings(NodeSettings.Default(this.Network))
{
AmountOfBlocksToKeep = 10
};
var prunedBlockRepository = new PrunedBlockRepository(blockRepository, dBreezeSerializer, this.LoggerFactory.Object, storeSettings);
prunedBlockRepository.Initialize();
// Delete blocks 30 to 0 from the repo, this would have been done by the service before shutdown was initiated.
blockRepository.DeleteBlocks(posBlocks.Take(30).Select(b => b.GetHash()).ToList());
prunedBlockRepository.UpdatePrunedTip(chainedHeaderTip.GetAncestor(30));
// Ensure that the block has been deleted from disk.
Assert.Null(blockRepository.GetBlock(chainedHeaderTip.GetAncestor(29).HashBlock));
// On shutdown the database will only be compacted.
prunedBlockRepository.PruneAndCompactDatabase(chainedHeaderTip.GetAncestor(50), this.Network, false);
Assert.Equal(chainedHeaderTip.GetAncestor(30).HashBlock, prunedBlockRepository.PrunedTip.Hash);
Assert.Equal(chainedHeaderTip.GetAncestor(30).Height, prunedBlockRepository.PrunedTip.Height);
Assert.Null(blockRepository.GetBlock(chainedHeaderTip.GetAncestor(29).HashBlock));
}
public void PruneRepository_PruneAndCompact_MidChain_OnStartUp()
{
var posBlocks = CreatePosBlocks(200);
var chainedHeaderTip = BuildProvenHeaderChainFromBlocks(posBlocks);
var dataFolderPath = CreateTestDir(this);
var dataFolder = new DataFolder(dataFolderPath);
var dBreezeSerializer = new DBreezeSerializer(this.Network.Consensus.ConsensusFactory);
var blockRepository = new LevelDbBlockRepository(this.Network, dataFolder, dBreezeSerializer);
blockRepository.Initialize();
blockRepository.PutBlocks(new HashHeightPair(posBlocks.Take(100).Last().GetHash(), 100), posBlocks.Take(100).ToList());
var storeSettings = new StoreSettings(NodeSettings.Default(this.Network))
{
AmountOfBlocksToKeep = 50
};
var prunedBlockRepository = new PrunedBlockRepository(blockRepository, dBreezeSerializer, this.LoggerFactory.Object, storeSettings);
prunedBlockRepository.Initialize();
// The first prune will delete blocks from 50 to 0.
prunedBlockRepository.PruneAndCompactDatabase(chainedHeaderTip.GetAncestor(100), this.Network, true);
Assert.Equal(chainedHeaderTip.GetAncestor(50).HashBlock, prunedBlockRepository.PrunedTip.Hash);
Assert.Equal(chainedHeaderTip.GetAncestor(50).Height, prunedBlockRepository.PrunedTip.Height);
// Ensure that the block has been deleted from disk.
Assert.Null(blockRepository.GetBlock(chainedHeaderTip.GetAncestor(49).HashBlock));
// Push more blocks to the repository and prune again.
// This will delete blocks from height 150 to 50.
blockRepository.PutBlocks(new HashHeightPair(posBlocks.Skip(100).Take(100).Last().GetHash(), 200), posBlocks.Skip(100).Take(100).ToList());
prunedBlockRepository.PruneAndCompactDatabase(chainedHeaderTip, this.Network, true);
Assert.Equal(chainedHeaderTip.GetAncestor(150).HashBlock, prunedBlockRepository.PrunedTip.Hash);
Assert.Equal(chainedHeaderTip.GetAncestor(150).Height, prunedBlockRepository.PrunedTip.Height);
// Ensure that the block has been deleted from disk.
Assert.Null(blockRepository.GetBlock(chainedHeaderTip.GetAncestor(149).HashBlock));
}
