Examples with RetryPolicy net.jodah.failsafe.RetryPolicy used on opensource projects

Example 51 with RetryPolicy

use of net.jodah.failsafe.RetryPolicy in project open-kilda by telstra.

the class BaseResourceAllocationAction method allocateFlowResources.

@SneakyThrows
protected FlowResources allocateFlowResources(Flow flow, PathId forwardPathId, PathId reversePathId) throws ResourceAllocationException {
    RetryPolicy<FlowResources> resourceAllocationRetryPolicy = transactionManager.<FlowResources>getDefaultRetryPolicy().handle(ResourceAllocationException.class).handle(ConstraintViolationException.class).onRetry(e -> log.warn("Failure in resource allocation. Retrying #{}...", e.getAttemptCount(), e.getLastFailure())).onRetriesExceeded(e -> log.warn("Failure in resource allocation. No more retries", e.getFailure())).withMaxRetries(resourceAllocationRetriesLimit);
    FlowResources flowResources = transactionManager.doInTransaction(resourceAllocationRetryPolicy, () -> resourcesManager.allocateFlowResources(flow, forwardPathId, reversePathId));
    log.debug("Resources have been allocated: {}", flowResources);
    return flowResources;
}

Example 52 with RetryPolicy

use of net.jodah.failsafe.RetryPolicy in project open-kilda by telstra.

the class BaseResourceAllocationAction method allocatePathPair.

@SneakyThrows
protected GetPathsResult allocatePathPair(Flow flow, PathId newForwardPathId, PathId newReversePathId, boolean forceToIgnoreBandwidth, List<PathId> pathsToReuseBandwidth, FlowPathPair oldPaths, boolean allowOldPaths, String sharedBandwidthGroupId, Predicate<GetPathsResult> whetherCreatePathSegments) throws RecoverableException, UnroutableFlowException, ResourceAllocationException {
    // Lazy initialisable map with reused bandwidth...
    Supplier<Map<IslEndpoints, Long>> reuseBandwidthPerIsl = Suppliers.memoize(() -> {
        Map<IslEndpoints, Long> result = new HashMap<>();
        if (pathsToReuseBandwidth != null && !pathsToReuseBandwidth.isEmpty()) {
            pathsToReuseBandwidth.stream().map(pathId -> flow.getPath(pathId).orElse(flowPathRepository.findById(pathId).orElse(null))).filter(Objects::nonNull).flatMap(path -> path.getSegments().stream()).forEach(segment -> {
                IslEndpoints isl = new IslEndpoints(segment.getSrcSwitchId().toString(), segment.getSrcPort(), segment.getDestSwitchId().toString(), segment.getDestPort());
                result.put(isl, result.getOrDefault(isl, 0L) + segment.getBandwidth());
            });
        }
        return result;
    });
    RetryPolicy<GetPathsResult> pathAllocationRetryPolicy = new RetryPolicy<GetPathsResult>().handle(RecoverableException.class).handle(ResourceAllocationException.class).handle(UnroutableFlowException.class).handle(PersistenceException.class).onRetry(e -> log.warn("Failure in path allocation. Retrying #{}...", e.getAttemptCount(), e.getLastFailure())).onRetriesExceeded(e -> log.warn("Failure in path allocation. No more retries", e.getFailure())).withMaxRetries(pathAllocationRetriesLimit);
    if (pathAllocationRetryDelay > 0) {
        pathAllocationRetryPolicy.withDelay(Duration.ofMillis(pathAllocationRetryDelay));
    }
    try {
        return Failsafe.with(pathAllocationRetryPolicy).get(() -> {
            GetPathsResult potentialPath;
            if (forceToIgnoreBandwidth) {
                boolean originalIgnoreBandwidth = flow.isIgnoreBandwidth();
                flow.setIgnoreBandwidth(true);
                potentialPath = pathComputer.getPath(flow);
                flow.setIgnoreBandwidth(originalIgnoreBandwidth);
            } else {
                potentialPath = pathComputer.getPath(flow, pathsToReuseBandwidth);
            }
            boolean newPathFound = isNotSamePath(potentialPath, oldPaths);
            if (allowOldPaths || newPathFound) {
                if (!newPathFound) {
                    log.debug("Found the same path for flow {}. Proceed with recreating it", flow.getFlowId());
                }
                if (whetherCreatePathSegments.test(potentialPath)) {
                    boolean ignoreBandwidth = forceToIgnoreBandwidth || flow.isIgnoreBandwidth();
                    List<PathSegment> forwardSegments = flowPathBuilder.buildPathSegments(newForwardPathId, potentialPath.getForward(), flow.getBandwidth(), ignoreBandwidth, sharedBandwidthGroupId);
                    List<PathSegment> reverseSegments = flowPathBuilder.buildPathSegments(newReversePathId, potentialPath.getReverse(), flow.getBandwidth(), ignoreBandwidth, sharedBandwidthGroupId);
                    transactionManager.doInTransaction(() -> {
                        createPathSegments(forwardSegments, reuseBandwidthPerIsl);
                        createPathSegments(reverseSegments, reuseBandwidthPerIsl);
                    });
                }
                return potentialPath;
            }
            return null;
        });
    } catch (FailsafeException ex) {
        throw ex.getCause();
    }
}

Example 53 with RetryPolicy

use of net.jodah.failsafe.RetryPolicy in project samza by apache.

the class FailsafeAdapter method valueOf.

/**
 * Convert the {@link TableRetryPolicy} to failsafe {@link RetryPolicy}.
 * @return this policy instance
 */
static RetryPolicy valueOf(TableRetryPolicy policy) {
    // max retries default changed to 2 in v2.0. switching back to infinite retries by default for back compat.
    RetryPolicy failSafePolicy = new RetryPolicy().withMaxRetries(-1);
    switch(policy.getBackoffType()) {
        case NONE:
            break;
        case FIXED:
            failSafePolicy.withDelay(policy.getSleepTime());
            break;
        case RANDOM:
            failSafePolicy.withDelay(policy.getRandomMin().toMillis(), policy.getRandomMax().toMillis(), ChronoUnit.MILLIS);
            break;
        case EXPONENTIAL:
            failSafePolicy.withBackoff(policy.getSleepTime().toMillis(), policy.getExponentialMaxSleep().toMillis(), ChronoUnit.MILLIS, policy.getExponentialFactor());
            break;
        default:
            throw new SamzaException("Unknown retry policy type.");
    }
    if (policy.getMaxDuration() != null) {
        failSafePolicy.withMaxDuration(policy.getMaxDuration());
    }
    if (policy.getMaxAttempts() != null) {
        failSafePolicy.withMaxRetries(policy.getMaxAttempts());
    }
    if (policy.getJitter() != null && policy.getBackoffType() != TableRetryPolicy.BackoffType.RANDOM) {
        failSafePolicy.withJitter(policy.getJitter());
    }
    failSafePolicy.abortOn(policy.getRetryPredicate().negate());
    return failSafePolicy;
}

Example 54 with RetryPolicy

use of net.jodah.failsafe.RetryPolicy in project samza by apache.

the class FutureUtil method executeAsyncWithRetries.

public static <T> CompletableFuture<T> executeAsyncWithRetries(String opName, Supplier<? extends CompletionStage<T>> action, Predicate<? extends Throwable> abortRetries, ExecutorService executor) {
    Duration maxDuration = Duration.ofMinutes(10);
    RetryPolicy<Object> retryPolicy = new RetryPolicy<>().withBackoff(100, 312500, ChronoUnit.MILLIS, // 100 ms, 500 ms, 2500 ms, 12.5 s, 1.05 min, 5.20 min, 5.20 min
    5).withMaxDuration(maxDuration).abortOn(// stop retrying if predicate returns true
    abortRetries).onRetry(e -> LOG.warn("Action: {} attempt: {} completed with error {} ms after start. Retrying up to {} ms.", opName, e.getAttemptCount(), e.getElapsedTime().toMillis(), maxDuration.toMillis(), e.getLastFailure()));
    return Failsafe.with(retryPolicy).with(executor).getStageAsync(action::get);
}

Example 55 with RetryPolicy

use of net.jodah.failsafe.RetryPolicy in project samza by apache.

the class TestTableRetryPolicy method testExponentialRetry.

@Test
public void testExponentialRetry() {
    TableRetryPolicy retryPolicy = new TableRetryPolicy();
    retryPolicy.withExponentialBackoff(Duration.ofMillis(1000), Duration.ofMillis(2000), 1.5);
    retryPolicy.withJitter(Duration.ofMillis(100));
    Assert.assertEquals(TableRetryPolicy.BackoffType.EXPONENTIAL, retryPolicy.getBackoffType());
    RetryPolicy fsRetry = FailsafeAdapter.valueOf(retryPolicy);
    Assert.assertEquals(1000, fsRetry.getDelay().toMillis());
    Assert.assertEquals(2000, fsRetry.getMaxDelay().toMillis());
    Assert.assertEquals(1.5, fsRetry.getDelayFactor(), 0.001);
    Assert.assertEquals(100, fsRetry.getJitter().toMillis());
    Assert.assertEquals("{\"sleepTime\":{\"seconds\":1,\"nanos\":0},\"exponentialFactor\":1.5," + "\"exponentialMaxSleep\":{\"seconds\":2,\"nanos\":0},\"jitter\":{\"seconds\":0,\"nanos\":100000000}," + "\"backoffType\":\"EXPONENTIAL\",\"retryPredicate\":{}}", retryPolicy.toConfig(null, null).get("TableRetryPolicy"));
}