org.springframework.util.backoff.ExponentialBackOff Java Examples
The following examples show how to use
org.springframework.util.backoff.ExponentialBackOff.
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Example #1
Source File: ExponentialBackOffTests.java From java-technology-stack with MIT License | 6 votes |
@Test public void startReturnDifferentInstances() { ExponentialBackOff backOff = new ExponentialBackOff(); backOff.setInitialInterval(2000L); backOff.setMultiplier(2.0); backOff.setMaxElapsedTime(4000L); BackOffExecution execution = backOff.start(); BackOffExecution execution2 = backOff.start(); assertEquals(2000L, execution.nextBackOff()); assertEquals(2000L, execution2.nextBackOff()); assertEquals(4000L, execution.nextBackOff()); assertEquals(4000L, execution2.nextBackOff()); assertEquals(BackOffExecution.STOP, execution.nextBackOff()); assertEquals(BackOffExecution.STOP, execution2.nextBackOff()); }
Example #2
Source File: ExponentialBackOffTests.java From spring-analysis-note with MIT License | 6 votes |
@Test public void startReturnDifferentInstances() { ExponentialBackOff backOff = new ExponentialBackOff(); backOff.setInitialInterval(2000L); backOff.setMultiplier(2.0); backOff.setMaxElapsedTime(4000L); BackOffExecution execution = backOff.start(); BackOffExecution execution2 = backOff.start(); assertEquals(2000L, execution.nextBackOff()); assertEquals(2000L, execution2.nextBackOff()); assertEquals(4000L, execution.nextBackOff()); assertEquals(4000L, execution2.nextBackOff()); assertEquals(BackOffExecution.STOP, execution.nextBackOff()); assertEquals(BackOffExecution.STOP, execution2.nextBackOff()); }
Example #3
Source File: FiatPermissionEvaluator.java From fiat with Apache License 2.0 | 6 votes |
public <T> T retry(String description, Callable<T> callable) throws Exception { ExponentialBackOff backOff = new ExponentialBackOff( retryConfiguration.getInitialBackoffMillis(), retryConfiguration.getRetryMultiplier()); backOff.setMaxElapsedTime(retryConfiguration.getMaxBackoffMillis()); BackOffExecution backOffExec = backOff.start(); while (true) { try { return callable.call(); } catch (Throwable e) { long waitTime = backOffExec.nextBackOff(); if (waitTime == BackOffExecution.STOP) { throw e; } log.warn(description + " failed. Retrying in " + waitTime + "ms", e); TimeUnit.MILLISECONDS.sleep(waitTime); } } }
Example #4
Source File: KafkaMessageChannelBinder.java From spring-cloud-stream-binder-kafka with Apache License 2.0 | 6 votes |
/** * Configure a {@link BackOff} for the after rollback processor, based on the consumer * retry properties. If retry is disabled, return a {@link BackOff} that disables * retry. Otherwise calculate the {@link ExponentialBackOff#setMaxElapsedTime(long)} * so that the {@link BackOff} stops after the configured * {@link ExtendedConsumerProperties#getMaxAttempts()}. * @param extendedConsumerProperties the properties. * @return the backoff. */ private BackOff createBackOff( final ExtendedConsumerProperties<KafkaConsumerProperties> extendedConsumerProperties) { int maxAttempts = extendedConsumerProperties.getMaxAttempts(); if (maxAttempts < 2) { return new FixedBackOff(0L, 0L); } int initialInterval = extendedConsumerProperties.getBackOffInitialInterval(); double multiplier = extendedConsumerProperties.getBackOffMultiplier(); int maxInterval = extendedConsumerProperties.getBackOffMaxInterval(); ExponentialBackOff backOff = new ExponentialBackOff(initialInterval, multiplier); backOff.setMaxInterval(maxInterval); long maxElapsed = extendedConsumerProperties.getBackOffInitialInterval(); double accum = maxElapsed; for (int i = 1; i < maxAttempts - 1; i++) { accum = accum * multiplier; if (accum > maxInterval) { accum = maxInterval; } maxElapsed += accum; } backOff.setMaxElapsedTime(maxElapsed); return backOff; }
Example #5
Source File: ExponentialBackOffTests.java From spring4-understanding with Apache License 2.0 | 6 votes |
@Test public void startReturnDifferentInstances() { ExponentialBackOff backOff = new ExponentialBackOff(); backOff.setInitialInterval(2000L); backOff.setMultiplier(2.0); backOff.setMaxElapsedTime(4000L); BackOffExecution execution = backOff.start(); BackOffExecution execution2 = backOff.start(); assertEquals(2000l, execution.nextBackOff()); assertEquals(2000l, execution2.nextBackOff()); assertEquals(4000l, execution.nextBackOff()); assertEquals(4000l, execution2.nextBackOff()); assertEquals(BackOffExecution.STOP, execution.nextBackOff()); assertEquals(BackOffExecution.STOP, execution2.nextBackOff()); }
Example #6
Source File: ExponentialBackOffTests.java From spring4-understanding with Apache License 2.0 | 5 votes |
@Test public void toStringContent() { ExponentialBackOff backOff = new ExponentialBackOff(2000L, 2.0); BackOffExecution execution = backOff.start(); assertEquals("ExponentialBackOff{currentInterval=n/a, multiplier=2.0}", execution.toString()); execution.nextBackOff(); assertEquals("ExponentialBackOff{currentInterval=2000ms, multiplier=2.0}", execution.toString()); execution.nextBackOff(); assertEquals("ExponentialBackOff{currentInterval=4000ms, multiplier=2.0}", execution.toString()); }
Example #7
Source File: ExponentialBackOffTests.java From spring4-understanding with Apache License 2.0 | 5 votes |
@Test public void defaultInstance() { ExponentialBackOff backOff = new ExponentialBackOff(); BackOffExecution execution = backOff.start(); assertEquals(2000l, execution.nextBackOff()); assertEquals(3000l, execution.nextBackOff()); assertEquals(4500l, execution.nextBackOff()); }
Example #8
Source File: ExponentialBackOffTests.java From spring4-understanding with Apache License 2.0 | 5 votes |
@Test public void simpleIncrease() { ExponentialBackOff backOff = new ExponentialBackOff(100L, 2.0); BackOffExecution execution = backOff.start(); assertEquals(100l, execution.nextBackOff()); assertEquals(200l, execution.nextBackOff()); assertEquals(400l, execution.nextBackOff()); assertEquals(800l, execution.nextBackOff()); }
Example #9
Source File: ExponentialBackOffTests.java From spring4-understanding with Apache License 2.0 | 5 votes |
@Test public void fixedIncrease() { ExponentialBackOff backOff = new ExponentialBackOff(100L, 1.0); backOff.setMaxElapsedTime(300l); BackOffExecution execution = backOff.start(); assertEquals(100l, execution.nextBackOff()); assertEquals(100l, execution.nextBackOff()); assertEquals(100l, execution.nextBackOff()); assertEquals(BackOffExecution.STOP, execution.nextBackOff()); }
Example #10
Source File: ExponentialBackOffTests.java From spring4-understanding with Apache License 2.0 | 5 votes |
@Test public void maxIntervalReached() { ExponentialBackOff backOff = new ExponentialBackOff(2000L, 2.0); backOff.setMaxInterval(4000L); BackOffExecution execution = backOff.start(); assertEquals(2000l, execution.nextBackOff()); assertEquals(4000l, execution.nextBackOff()); assertEquals(4000l, execution.nextBackOff()); // max reached assertEquals(4000l, execution.nextBackOff()); }
Example #11
Source File: ExponentialBackOffTests.java From spring4-understanding with Apache License 2.0 | 5 votes |
@Test public void maxAttemptsReached() { ExponentialBackOff backOff = new ExponentialBackOff(2000L, 2.0); backOff.setMaxElapsedTime(4000L); BackOffExecution execution = backOff.start(); assertEquals(2000l, execution.nextBackOff()); assertEquals(4000l, execution.nextBackOff()); assertEquals(BackOffExecution.STOP, execution.nextBackOff()); // > 4 sec wait in total }
Example #12
Source File: ExponentialBackOffTests.java From spring4-understanding with Apache License 2.0 | 5 votes |
@Test public void invalidInterval() { ExponentialBackOff backOff = new ExponentialBackOff(); thrown.expect(IllegalArgumentException.class); backOff.setMultiplier(0.9); }
Example #13
Source File: ExponentialBackOffTests.java From spring-analysis-note with MIT License | 5 votes |
@Test public void simpleIncrease() { ExponentialBackOff backOff = new ExponentialBackOff(100L, 2.0); BackOffExecution execution = backOff.start(); assertEquals(100L, execution.nextBackOff()); assertEquals(200L, execution.nextBackOff()); assertEquals(400L, execution.nextBackOff()); assertEquals(800L, execution.nextBackOff()); }
Example #14
Source File: RetrofitConfig.java From fiat with Apache License 2.0 | 5 votes |
@Override public Response intercept(Chain chain) throws IOException { ExponentialBackOff backoff = new ExponentialBackOff(); backoff.setMaxElapsedTime(maxElapsedBackoffMs); BackOffExecution backOffExec = backoff.start(); Response response = null; long waitTime = 0; while (waitTime != BackOffExecution.STOP) { Request request = chain.request(); response = chain.proceed(request); if (response.isSuccessful() || NON_RETRYABLE_METHODS.contains(request.method()) || response.code() == 404) { return response; } try { waitTime = backOffExec.nextBackOff(); if (waitTime != BackOffExecution.STOP) { if (response.body() != null) { response.body().close(); } log.warn( "Request for " + request.url().toString() + " failed. Backing off for " + waitTime + "ms"); Thread.sleep(waitTime); } } catch (Throwable ignored) { break; } } return response; }
Example #15
Source File: RetryCommand.java From mojito with Apache License 2.0 | 5 votes |
@Override public void execute() throws CommandException { List<String> commandToExecute = getCommandToExecute(); ExponentialBackOff exponentialBackOff = new ExponentialBackOff(initialInterval, multiplier); BackOffExecution backOffExecution = exponentialBackOff.start(); int numberOfAttempts = 0; int exitCode = -1; while (exitCode !=0 && numberOfAttempts < maxNumberOfAttempts) { try { numberOfAttempts++; exitCode = executeCommand(commandToExecute); if (exitCode != 0) { consoleWriter.a("Attempt: ").fg(Ansi.Color.CYAN) .a(numberOfAttempts).a("/").a(maxNumberOfAttempts).reset() .a(" failed. "); if (numberOfAttempts < maxNumberOfAttempts) { long nextBackOff = backOffExecution.nextBackOff(); consoleWriter.a("Retry in ").fg(Ansi.Color.CYAN).a(nextBackOff / 1000.0).reset().a(" seconds").println(); Thread.sleep(nextBackOff); } else { consoleWriter.a("Abort").println(); } } } catch (CommandException ce) { throw ce; } catch (Throwable t) { throw new CommandException("Couldn't run command with retry", t); } } if (exitCode != 0) { throw new CommandWithExitStatusException(exitCode); } }
Example #16
Source File: RegisterClientExceptionHandler.java From Java-Auto-Update with Apache License 2.0 | 5 votes |
public static void handleRegisterClientException(HystrixRuntimeException e, BackOff exponentialBackOff, BackOffExecution backOffExecution, String configServiceUrl) { Throwable cause = e.getCause(); log.debug("Exception registering client, exception getMessage={}", e.getMessage()); log.debug("Exception registering client, cause getMessage={}", cause.getMessage()); if (cause instanceof ConnectException) { log.debug("Connection refused to ConfigService url={}", configServiceUrl); } else if (cause instanceof InternalServerErrorException) { log.debug("Internal server error in ConfigService url={}", configServiceUrl); } else if(cause instanceof NotFoundException) { log.debug("404 not found to ConfigService url={}", configServiceUrl); } else if (cause instanceof BadRequestException) { log.error("400 Bad Request. Probably need to fix something on the client. Exiting after a" + " wait, so as to not DDoS the server."); // TODO Do a sensible BackOff implementation class comparissmnet before this!!! SleepUtil.sleepWithLogging(((ExponentialBackOff)exponentialBackOff).getMaxInterval() * 2); System.exit(1); } else if (cause instanceof TimeoutException) { log.debug("CommandRegisterClient timed out."); } else { log.error("Couldn't handle exception: {}", e); } SleepUtil.sleepWithLogging(backOffExecution.nextBackOff()); }
Example #17
Source File: RegisterClientHelper.java From Java-Auto-Update with Apache License 2.0 | 5 votes |
public ClientConfig registerClient() { BackOff exponentialBackOff = new ExponentialBackOff(); BackOffExecution backOffExecution = exponentialBackOff.start(); while (true) { try { return new CommandRegisterClient(artifactId, configServiceClient, clientName, clientId).execute(); } catch (HystrixRuntimeException e) { RegisterClientExceptionHandler.handleRegisterClientException(e, exponentialBackOff, backOffExecution, configServiceClient.getUrl()); } } }
Example #18
Source File: ExponentialBackOffTests.java From java-technology-stack with MIT License | 5 votes |
@Test public void maxIntervalReachedImmediately() { ExponentialBackOff backOff = new ExponentialBackOff(1000L, 2.0); backOff.setMaxInterval(50L); BackOffExecution execution = backOff.start(); assertEquals(50L, execution.nextBackOff()); assertEquals(50L, execution.nextBackOff()); }
Example #19
Source File: ExponentialBackOffTests.java From spring-analysis-note with MIT License | 5 votes |
@Test public void defaultInstance() { ExponentialBackOff backOff = new ExponentialBackOff(); BackOffExecution execution = backOff.start(); assertEquals(2000L, execution.nextBackOff()); assertEquals(3000L, execution.nextBackOff()); assertEquals(4500L, execution.nextBackOff()); }
Example #20
Source File: ExponentialBackOffTests.java From spring-analysis-note with MIT License | 5 votes |
@Test public void fixedIncrease() { ExponentialBackOff backOff = new ExponentialBackOff(100L, 1.0); backOff.setMaxElapsedTime(300L); BackOffExecution execution = backOff.start(); assertEquals(100L, execution.nextBackOff()); assertEquals(100L, execution.nextBackOff()); assertEquals(100L, execution.nextBackOff()); assertEquals(BackOffExecution.STOP, execution.nextBackOff()); }
Example #21
Source File: ExponentialBackOffTests.java From spring-analysis-note with MIT License | 5 votes |
@Test public void maxIntervalReached() { ExponentialBackOff backOff = new ExponentialBackOff(2000L, 2.0); backOff.setMaxInterval(4000L); BackOffExecution execution = backOff.start(); assertEquals(2000L, execution.nextBackOff()); assertEquals(4000L, execution.nextBackOff()); assertEquals(4000L, execution.nextBackOff()); // max reached assertEquals(4000L, execution.nextBackOff()); }
Example #22
Source File: ExponentialBackOffTests.java From spring-analysis-note with MIT License | 5 votes |
@Test public void maxAttemptsReached() { ExponentialBackOff backOff = new ExponentialBackOff(2000L, 2.0); backOff.setMaxElapsedTime(4000L); BackOffExecution execution = backOff.start(); assertEquals(2000L, execution.nextBackOff()); assertEquals(4000L, execution.nextBackOff()); assertEquals(BackOffExecution.STOP, execution.nextBackOff()); // > 4 sec wait in total }
Example #23
Source File: ExponentialBackOffTests.java From spring-analysis-note with MIT License | 5 votes |
@Test public void maxIntervalReachedImmediately() { ExponentialBackOff backOff = new ExponentialBackOff(1000L, 2.0); backOff.setMaxInterval(50L); BackOffExecution execution = backOff.start(); assertEquals(50L, execution.nextBackOff()); assertEquals(50L, execution.nextBackOff()); }
Example #24
Source File: ExponentialBackOffTests.java From spring-analysis-note with MIT License | 5 votes |
@Test public void toStringContent() { ExponentialBackOff backOff = new ExponentialBackOff(2000L, 2.0); BackOffExecution execution = backOff.start(); assertEquals("ExponentialBackOff{currentInterval=n/a, multiplier=2.0}", execution.toString()); execution.nextBackOff(); assertEquals("ExponentialBackOff{currentInterval=2000ms, multiplier=2.0}", execution.toString()); execution.nextBackOff(); assertEquals("ExponentialBackOff{currentInterval=4000ms, multiplier=2.0}", execution.toString()); }
Example #25
Source File: ExponentialBackOffTests.java From java-technology-stack with MIT License | 5 votes |
@Test public void defaultInstance() { ExponentialBackOff backOff = new ExponentialBackOff(); BackOffExecution execution = backOff.start(); assertEquals(2000L, execution.nextBackOff()); assertEquals(3000L, execution.nextBackOff()); assertEquals(4500L, execution.nextBackOff()); }
Example #26
Source File: ExponentialBackOffTests.java From java-technology-stack with MIT License | 5 votes |
@Test public void simpleIncrease() { ExponentialBackOff backOff = new ExponentialBackOff(100L, 2.0); BackOffExecution execution = backOff.start(); assertEquals(100L, execution.nextBackOff()); assertEquals(200L, execution.nextBackOff()); assertEquals(400L, execution.nextBackOff()); assertEquals(800L, execution.nextBackOff()); }
Example #27
Source File: ExponentialBackOffTests.java From java-technology-stack with MIT License | 5 votes |
@Test public void fixedIncrease() { ExponentialBackOff backOff = new ExponentialBackOff(100L, 1.0); backOff.setMaxElapsedTime(300L); BackOffExecution execution = backOff.start(); assertEquals(100L, execution.nextBackOff()); assertEquals(100L, execution.nextBackOff()); assertEquals(100L, execution.nextBackOff()); assertEquals(BackOffExecution.STOP, execution.nextBackOff()); }
Example #28
Source File: ExponentialBackOffTests.java From java-technology-stack with MIT License | 5 votes |
@Test public void maxIntervalReached() { ExponentialBackOff backOff = new ExponentialBackOff(2000L, 2.0); backOff.setMaxInterval(4000L); BackOffExecution execution = backOff.start(); assertEquals(2000L, execution.nextBackOff()); assertEquals(4000L, execution.nextBackOff()); assertEquals(4000L, execution.nextBackOff()); // max reached assertEquals(4000L, execution.nextBackOff()); }
Example #29
Source File: ExponentialBackOffTests.java From java-technology-stack with MIT License | 5 votes |
@Test public void maxAttemptsReached() { ExponentialBackOff backOff = new ExponentialBackOff(2000L, 2.0); backOff.setMaxElapsedTime(4000L); BackOffExecution execution = backOff.start(); assertEquals(2000L, execution.nextBackOff()); assertEquals(4000L, execution.nextBackOff()); assertEquals(BackOffExecution.STOP, execution.nextBackOff()); // > 4 sec wait in total }
Example #30
Source File: ExponentialBackOffTests.java From java-technology-stack with MIT License | 5 votes |
@Test public void invalidInterval() { ExponentialBackOff backOff = new ExponentialBackOff(); thrown.expect(IllegalArgumentException.class); backOff.setMultiplier(0.9); }