Examples with Eth1RequestException tech.pegasys.teku.pow.exception.Eth1RequestException used on opensource projects

Example 1 with Eth1RequestException

use of tech.pegasys.teku.pow.exception.Eth1RequestException in project teku by ConsenSys.

the class DepositsFetcherTest method shouldReduceBatchSizeWhenRequestIsRejected.

@Test
void shouldReduceBatchSizeWhenRequestIsRejected() {
    final BigInteger fromBlockNumber = BigInteger.ZERO;
    final BigInteger toBlockNumber = BigInteger.valueOf(MAX_BLOCK_RANGE + 100);
    final SafeFuture<List<DepositContract.DepositEventEventResponse>> request1Response = new SafeFuture<>();
    final SafeFuture<List<DepositContract.DepositEventEventResponse>> request2Response = new SafeFuture<>();
    final SafeFuture<List<DepositContract.DepositEventEventResponse>> request3Response = new SafeFuture<>();
    when(depositEventsAccessor.depositEventInRange(any(), any())).thenReturn(request1Response).thenReturn(request2Response).thenReturn(request3Response);
    final SafeFuture<Void> result = depositFetcher.fetchDepositsInRange(fromBlockNumber, toBlockNumber);
    assertThat(result).isNotDone();
    // First tries to request a full size batch
    verify(depositEventsAccessor).depositEventInRange(refEq(DefaultBlockParameter.valueOf(fromBlockNumber)), refEq(DefaultBlockParameter.valueOf(BigInteger.valueOf(MAX_BLOCK_RANGE))));
    verifyNoMoreInteractions(depositEventsAccessor);
    // But there are too many results
    final Eth1RequestException err = new Eth1RequestException();
    err.addSuppressed(new RejectedRequestException(-32005, "Nah mate"));
    request1Response.completeExceptionally(err);
    // So it halves the batch size and retries
    asyncRunner.executeQueuedActions();
    final BigInteger endSuccessfulRange = fromBlockNumber.add(BigInteger.valueOf(MAX_BLOCK_RANGE / 2));
    verify(depositEventsAccessor).depositEventInRange(refEq(DefaultBlockParameter.valueOf(fromBlockNumber)), refEq(DefaultBlockParameter.valueOf(endSuccessfulRange)));
    verifyNoMoreInteractions(depositEventsAccessor);
    // And that works
    request2Response.complete(emptyList());
    // So it increases the batch size by 10% to avoid getting stuck with a very small batch size
    asyncRunner.executeQueuedActions();
    verify(depositEventsAccessor).depositEventInRange(refEq(DefaultBlockParameter.valueOf(endSuccessfulRange.add(BigInteger.ONE))), refEq(DefaultBlockParameter.valueOf(toBlockNumber)));
    verifyNoMoreInteractions(depositEventsAccessor);
}

Example 2 with Eth1RequestException

use of tech.pegasys.teku.pow.exception.Eth1RequestException in project teku by ConsenSys.

the class DepositFetcher method sendNextBatchRequest.

private SafeFuture<Void> sendNextBatchRequest(final DepositFetchState fetchState) {
    final BigInteger nextBatchEnd = fetchState.getNextBatchEnd();
    LOG.debug("Requesting deposits between {} and {}. Batch size: {}", fetchState.nextBatchStart, nextBatchEnd, fetchState.batchSize);
    return processDepositsInBatch(fetchState.nextBatchStart, nextBatchEnd).exceptionallyCompose((err) -> {
        LOG.debug("Failed to request deposit events for block numbers in the range ({}, {}). Retrying.", fetchState.nextBatchStart, nextBatchEnd, err);
        final Throwable rootCause = Throwables.getRootCause(err);
        if (rootCause instanceof InvalidDepositEventsException) {
            STATUS_LOG.eth1DepositEventsFailure(rootCause);
        } else if (rootCause instanceof Eth1RequestException && ((Eth1RequestException) rootCause).containsExceptionSolvableWithSmallerRange()) {
            STATUS_LOG.eth1FetchDepositsRequiresSmallerRange(fetchState.batchSize);
            fetchState.reduceBatchSize();
        }
        return asyncRunner.runAfterDelay(() -> sendNextBatchRequest(fetchState), Constants.ETH1_DEPOSIT_REQUEST_RETRY_TIMEOUT);
    }).thenCompose(__ -> {
        fetchState.moveToNextBatch();
        LOG.trace("Batch request completed. Done? {}", fetchState.isDone());
        if (fetchState.isDone()) {
            return SafeFuture.COMPLETE;
        } else {
            return sendNextBatchRequest(fetchState);
        }
    });
}