Examples with SnapSyncDownloader org.hyperledger.besu.ethereum.eth.sync.snapsync.SnapSyncDownloader used on opensource projects

Example 1 with SnapSyncDownloader

use of org.hyperledger.besu.ethereum.eth.sync.snapsync.SnapSyncDownloader in project besu by hyperledger.

the class CheckpointDownloaderFactory method createCheckpointDownloader.

public static Optional<FastSyncDownloader<?>> createCheckpointDownloader(final PivotBlockSelector pivotBlockSelector, final SynchronizerConfiguration syncConfig, final Path dataDirectory, final ProtocolSchedule protocolSchedule, final ProtocolContext protocolContext, final MetricsSystem metricsSystem, final EthContext ethContext, final WorldStateStorage worldStateStorage, final SyncState syncState, final Clock clock) {
    final Path fastSyncDataDirectory = dataDirectory.resolve(FAST_SYNC_FOLDER);
    final FastSyncStateStorage fastSyncStateStorage = new FastSyncStateStorage(fastSyncDataDirectory);
    if (SyncMode.isFullSync(syncConfig.getSyncMode())) {
        if (fastSyncStateStorage.isFastSyncInProgress()) {
            throw new IllegalStateException("Unable to change the sync mode when snap sync is incomplete, please restart with checkpoint sync mode");
        } else {
            return Optional.empty();
        }
    }
    ensureDirectoryExists(fastSyncDataDirectory.toFile());
    final FastSyncState fastSyncState = fastSyncStateStorage.loadState(ScheduleBasedBlockHeaderFunctions.create(protocolSchedule));
    if (fastSyncState.getPivotBlockHeader().isEmpty() && protocolContext.getBlockchain().getChainHeadBlockNumber() != BlockHeader.GENESIS_BLOCK_NUMBER) {
        LOG.info("Checkpoint sync was requested, but cannot be enabled because the local blockchain is not empty.");
        return Optional.empty();
    }
    final FastSyncActions fastSyncActions;
    if (syncState.getCheckpoint().isEmpty()) {
        LOG.warn("Unable to find a valid checkpoint configuration. The genesis will be used");
        fastSyncActions = new FastSyncActions(syncConfig, worldStateStorage, protocolSchedule, protocolContext, ethContext, syncState, pivotBlockSelector, metricsSystem);
    } else {
        LOG.info("Checkpoint sync start with block {} and hash {}", syncState.getCheckpoint().get().blockNumber(), syncState.getCheckpoint().get().blockHash());
        fastSyncActions = new CheckpointSyncActions(syncConfig, worldStateStorage, protocolSchedule, protocolContext, ethContext, syncState, pivotBlockSelector, metricsSystem);
    }
    final SnapSyncState snapSyncState = new SnapSyncState(fastSyncStateStorage.loadState(ScheduleBasedBlockHeaderFunctions.create(protocolSchedule)));
    worldStateStorage.clear();
    final InMemoryTasksPriorityQueues<SnapDataRequest> snapTaskCollection = createSnapWorldStateDownloaderTaskCollection();
    final WorldStateDownloader snapWorldStateDownloader = new SnapWorldStateDownloader(ethContext, worldStateStorage, snapTaskCollection, syncConfig.getSnapSyncConfiguration(), syncConfig.getWorldStateRequestParallelism(), syncConfig.getWorldStateMaxRequestsWithoutProgress(), syncConfig.getWorldStateMinMillisBeforeStalling(), clock, metricsSystem);
    final FastSyncDownloader<SnapDataRequest> fastSyncDownloader = new SnapSyncDownloader(fastSyncActions, worldStateStorage, snapWorldStateDownloader, fastSyncStateStorage, snapTaskCollection, fastSyncDataDirectory, snapSyncState);
    syncState.setWorldStateDownloadStatus(snapWorldStateDownloader);
    return Optional.of(fastSyncDownloader);
}