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Rework of Blockchain.validate() to account for pruning mode.

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This commit is contained in:
CalDescent 2021-08-22 15:18:11 +01:00
parent 1b4c75a76e
commit 925e10b19b
1 changed files with 36 additions and 13 deletions
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49
src/main/java/org/qortal/block/BlockChain.java
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@ -506,28 +506,51 @@ public class BlockChain {
* @throws SQLException
*/
public static void validate() throws DataException {
// Check first block is Genesis Block
if (!isGenesisBlockValid())
rebuildBlockchain();
try (final Repository repository = RepositoryManager.getRepository()) {
boolean pruningEnabled = Settings.getInstance().isPruningEnabled();
BlockData chainTip = repository.getBlockRepository().getLastBlock();
boolean hasBlocks = (chainTip != null && chainTip.getHeight() > 1);
if (pruningEnabled && hasBlocks) {
// Pruning is enabled and we have blocks, so it's possible that the genesis block has been pruned
// It's best not to validate it, and there's no real need to
}
else {
// Check first block is Genesis Block
if (!isGenesisBlockValid()) {
rebuildBlockchain();
}
}
repository.checkConsistency();
int startHeight = Math.max(repository.getBlockRepository().getBlockchainHeight() - 1440, 1);
// Set the number of blocks to validate based on the pruned state of the chain
// If pruned, subtract an extra 10 to allow room for error
int blocksToValidate = pruningEnabled ? Settings.getInstance().getPruneBlockLimit() - 10 : 1440;
int startHeight = Math.max(repository.getBlockRepository().getBlockchainHeight() - blocksToValidate, 1);
BlockData detachedBlockData = repository.getBlockRepository().getDetachedBlockSignature(startHeight);
if (detachedBlockData != null) {
LOGGER.error(String.format("Block %d's reference does not match any block's signature", detachedBlockData.getHeight()));
// Wait for blockchain lock (whereas orphan() only tries to get lock)
ReentrantLock blockchainLock = Controller.getInstance().getBlockchainLock();
blockchainLock.lock();
try {
LOGGER.info(String.format("Orphaning back to block %d", detachedBlockData.getHeight() - 1));
orphan(detachedBlockData.getHeight() - 1);
} finally {
blockchainLock.unlock();
// Orphan if we aren't a pruning node
if (!Settings.getInstance().isPruningEnabled()) {
// Wait for blockchain lock (whereas orphan() only tries to get lock)
ReentrantLock blockchainLock = Controller.getInstance().getBlockchainLock();
blockchainLock.lock();
try {
LOGGER.info(String.format("Orphaning back to block %d", detachedBlockData.getHeight() - 1));
orphan(detachedBlockData.getHeight() - 1);
} finally {
blockchainLock.unlock();
}
}
else {
LOGGER.error(String.format("Not orphaning because we are in pruning mode. You may be on an " +
"invalid chain and should consider bootstrapping or re-syncing from genesis."));
}
}
}