Examples with MAX_QUERY_RETRIES_PER_PEER org.hyperledger.besu.ethereum.eth.sync.fastsync.PivotBlockRetriever.MAX_QUERY_RETRIES_PER_PEER used on opensource projects

Example 1 with MAX_QUERY_RETRIES_PER_PEER

use of org.hyperledger.besu.ethereum.eth.sync.fastsync.PivotBlockRetriever.MAX_QUERY_RETRIES_PER_PEER in project besu by hyperledger.

the class FastSyncTargetManager method confirmPivotBlockHeader.

private CompletableFuture<Optional<EthPeer>> confirmPivotBlockHeader(final EthPeer bestPeer) {
    final BlockHeader pivotBlockHeader = fastSyncState.getPivotBlockHeader().get();
    final RetryingGetHeaderFromPeerByNumberTask task = RetryingGetHeaderFromPeerByNumberTask.forSingleNumber(protocolSchedule, ethContext, metricsSystem, pivotBlockHeader.getNumber(), MAX_QUERY_RETRIES_PER_PEER);
    task.assignPeer(bestPeer);
    return ethContext.getScheduler().timeout(task).thenCompose(result -> {
        if (peerHasDifferentPivotBlock(result)) {
            if (!hasPivotChanged(pivotBlockHeader)) {
                // if the pivot block has not changed, then warn and disconnect this peer
                LOG.warn("Best peer has wrong pivot block (#{}) expecting {} but received {}.  Disconnect: {}", pivotBlockHeader.getNumber(), pivotBlockHeader.getHash(), result.size() == 1 ? result.get(0).getHash() : "invalid response", bestPeer);
                bestPeer.disconnect(DisconnectReason.USELESS_PEER);
                return CompletableFuture.completedFuture(Optional.<EthPeer>empty());
            }
            LOG.debug("Retrying best peer {} with new pivot block {}", bestPeer.getShortNodeId(), pivotBlockHeader.toLogString());
            return confirmPivotBlockHeader(bestPeer);
        } else {
            return CompletableFuture.completedFuture(Optional.of(bestPeer));
        }
    }).exceptionally(error -> {
        LOG.debug("Could not confirm best peer had pivot block", error);
        return Optional.empty();
    });
}