mirror of https://github.com/hyperledger/besu
Matilda-Clerke
2 months ago
committed by
GitHub
commit
84af9f9eb3
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/* |
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* Copyright contributors to Hyperledger Besu. |
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* |
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* Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with |
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* the License. You may obtain a copy of the License at |
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* |
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* http://www.apache.org/licenses/LICENSE-2.0
|
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* |
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* Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on |
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* an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the |
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* specific language governing permissions and limitations under the License. |
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* |
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* SPDX-License-Identifier: Apache-2.0 |
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*/ |
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package org.hyperledger.besu.ethereum.eth.sync.fastsync; |
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import org.hyperledger.besu.config.GenesisConfigOptions; |
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import org.hyperledger.besu.consensus.merge.ForkchoiceEvent; |
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import org.hyperledger.besu.datatypes.Hash; |
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import org.hyperledger.besu.ethereum.ProtocolContext; |
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import org.hyperledger.besu.ethereum.core.BlockHeader; |
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import org.hyperledger.besu.ethereum.eth.manager.EthContext; |
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import org.hyperledger.besu.ethereum.eth.manager.task.WaitForPeersTask; |
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import org.hyperledger.besu.ethereum.eth.sync.PivotBlockSelector; |
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import org.hyperledger.besu.ethereum.eth.sync.tasks.RetryingGetHeaderFromPeerByHashTask; |
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import org.hyperledger.besu.ethereum.mainnet.ProtocolSchedule; |
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import org.hyperledger.besu.plugin.services.MetricsSystem; |
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import java.util.Optional; |
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import java.util.concurrent.CompletableFuture; |
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import java.util.concurrent.TimeUnit; |
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import java.util.function.Supplier; |
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import org.slf4j.Logger; |
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import org.slf4j.LoggerFactory; |
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public abstract class PivotSelectorFromBlock implements PivotBlockSelector { |
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private static final Logger LOG = LoggerFactory.getLogger(PivotSelectorFromBlock.class); |
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private final ProtocolContext protocolContext; |
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private final ProtocolSchedule protocolSchedule; |
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private final EthContext ethContext; |
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private final MetricsSystem metricsSystem; |
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private final GenesisConfigOptions genesisConfig; |
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private final Supplier<Optional<ForkchoiceEvent>> forkchoiceStateSupplier; |
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private final Runnable cleanupAction; |
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private long lastNoFcuReceivedInfoLog = System.currentTimeMillis(); |
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private static final long NO_FCU_RECEIVED_LOGGING_THRESHOLD = 60000L; |
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private volatile Optional<BlockHeader> maybeCachedHeadBlockHeader = Optional.empty(); |
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public PivotSelectorFromBlock( |
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final ProtocolContext protocolContext, |
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final ProtocolSchedule protocolSchedule, |
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final EthContext ethContext, |
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final MetricsSystem metricsSystem, |
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final GenesisConfigOptions genesisConfig, |
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final Supplier<Optional<ForkchoiceEvent>> forkchoiceStateSupplier, |
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final Runnable cleanupAction) { |
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this.protocolContext = protocolContext; |
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this.protocolSchedule = protocolSchedule; |
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this.ethContext = ethContext; |
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this.metricsSystem = metricsSystem; |
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this.genesisConfig = genesisConfig; |
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this.forkchoiceStateSupplier = forkchoiceStateSupplier; |
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this.cleanupAction = cleanupAction; |
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} |
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@Override |
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public CompletableFuture<Void> prepareRetry() { |
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// nothing to do
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return CompletableFuture.completedFuture(null); |
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} |
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@Override |
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public void close() { |
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cleanupAction.run(); |
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} |
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@Override |
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public long getMinRequiredBlockNumber() { |
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return genesisConfig.getTerminalBlockNumber().orElse(0L); |
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} |
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@Override |
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public long getBestChainHeight() { |
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final long localChainHeight = protocolContext.getBlockchain().getChainHeadBlockNumber(); |
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return Math.max( |
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forkchoiceStateSupplier |
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.get() |
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.map(ForkchoiceEvent::getHeadBlockHash) |
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.map( |
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headBlockHash -> |
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maybeCachedHeadBlockHeader |
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.filter( |
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cachedBlockHeader -> cachedBlockHeader.getHash().equals(headBlockHash)) |
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.map(BlockHeader::getNumber) |
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.orElseGet( |
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() -> { |
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LOG.debug( |
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"Downloading chain head block header by hash {}", headBlockHash); |
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try { |
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return waitForPeers(1) |
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.thenCompose(unused -> downloadBlockHeader(headBlockHash)) |
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.thenApply( |
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blockHeader -> { |
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maybeCachedHeadBlockHeader = Optional.of(blockHeader); |
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return blockHeader.getNumber(); |
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}) |
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.get(20, TimeUnit.SECONDS); |
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} catch (Throwable t) { |
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LOG.debug( |
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"Error trying to download chain head block header by hash {}", |
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headBlockHash, |
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t); |
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} |
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return null; |
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})) |
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.orElse(0L), |
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localChainHeight); |
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} |
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@Override |
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public Optional<FastSyncState> selectNewPivotBlock() { |
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final Optional<ForkchoiceEvent> maybeForkchoice = forkchoiceStateSupplier.get(); |
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if (maybeForkchoice.isPresent()) { |
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Optional<Hash> pivotHash = getPivotHash(maybeForkchoice.get()); |
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if (pivotHash.isPresent()) { |
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LOG.info("Selecting new pivot block: {}", pivotHash); |
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return Optional.of(new FastSyncState(pivotHash.get())); |
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} |
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} |
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if (lastNoFcuReceivedInfoLog + NO_FCU_RECEIVED_LOGGING_THRESHOLD < System.currentTimeMillis()) { |
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lastNoFcuReceivedInfoLog = System.currentTimeMillis(); |
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LOG.info( |
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"Waiting for consensus client, this may be because your consensus client is still syncing"); |
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} |
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LOG.debug("No finalized block hash announced yet"); |
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return Optional.empty(); |
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} |
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private CompletableFuture<BlockHeader> downloadBlockHeader(final Hash hash) { |
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return RetryingGetHeaderFromPeerByHashTask.byHash( |
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protocolSchedule, ethContext, hash, 0, metricsSystem) |
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.getHeader() |
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.whenComplete( |
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(blockHeader, throwable) -> { |
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if (throwable != null) { |
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LOG.debug("Error downloading block header by hash {}", hash); |
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} else { |
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LOG.atDebug() |
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.setMessage("Successfully downloaded pivot block header by hash {}") |
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.addArgument(blockHeader::toLogString) |
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.log(); |
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} |
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}); |
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} |
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private CompletableFuture<Void> waitForPeers(final int count) { |
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final WaitForPeersTask waitForPeersTask = |
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WaitForPeersTask.create(ethContext, count, metricsSystem); |
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return waitForPeersTask.run(); |
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} |
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protected abstract Optional<Hash> getPivotHash(final ForkchoiceEvent forkchoiceEvent); |
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} |
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@ -0,0 +1,58 @@ |
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/* |
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* Copyright contributors to Hyperledger Besu. |
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* |
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* Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with |
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* the License. You may obtain a copy of the License at |
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* |
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* http://www.apache.org/licenses/LICENSE-2.0
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* |
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* Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on |
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* an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the |
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* specific language governing permissions and limitations under the License. |
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* |
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* SPDX-License-Identifier: Apache-2.0 |
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*/ |
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package org.hyperledger.besu.ethereum.eth.sync.fastsync; |
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import org.hyperledger.besu.config.GenesisConfigOptions; |
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import org.hyperledger.besu.consensus.merge.ForkchoiceEvent; |
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import org.hyperledger.besu.datatypes.Hash; |
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import org.hyperledger.besu.ethereum.ProtocolContext; |
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import org.hyperledger.besu.ethereum.eth.manager.EthContext; |
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import org.hyperledger.besu.ethereum.mainnet.ProtocolSchedule; |
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import org.hyperledger.besu.plugin.services.MetricsSystem; |
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import java.util.Optional; |
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import java.util.function.Supplier; |
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import org.slf4j.Logger; |
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import org.slf4j.LoggerFactory; |
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public class PivotSelectorFromHeadBlock extends PivotSelectorFromBlock { |
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private static final Logger LOG = LoggerFactory.getLogger(PivotSelectorFromHeadBlock.class); |
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public PivotSelectorFromHeadBlock( |
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final ProtocolContext protocolContext, |
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final ProtocolSchedule protocolSchedule, |
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final EthContext ethContext, |
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final MetricsSystem metricsSystem, |
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final GenesisConfigOptions genesisConfig, |
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final Supplier<Optional<ForkchoiceEvent>> forkchoiceStateSupplier, |
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final Runnable cleanupAction) { |
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super( |
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protocolContext, |
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protocolSchedule, |
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ethContext, |
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metricsSystem, |
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genesisConfig, |
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forkchoiceStateSupplier, |
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cleanupAction); |
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} |
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@Override |
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protected Optional<Hash> getPivotHash(final ForkchoiceEvent forkchoiceEvent) { |
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Hash hash = forkchoiceEvent.getHeadBlockHash(); |
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LOG.info("Returning head block hash {} as pivot", hash); |
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return Optional.of(hash); |
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} |
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} |
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