Examples with HystrixCommandKey com.netflix.hystrix.HystrixCommandKey used on opensource projects

Example 46 with HystrixCommandKey

use of com.netflix.hystrix.HystrixCommandKey in project Hystrix by Netflix.

the class RollingCommandEventCounterStreamTest method testFallbackFailure.

@Test
public void testFallbackFailure() {
    HystrixCommandKey key = HystrixCommandKey.Factory.asKey("CMD-RollingCounter-J");
    stream = RollingCommandEventCounterStream.getInstance(key, 10, 100);
    stream.startCachingStreamValuesIfUnstarted();
    final CountDownLatch latch = new CountDownLatch(1);
    stream.observe().take(10).subscribe(getSubscriber(latch));
    CommandStreamTest.Command cmd = CommandStreamTest.Command.from(groupKey, key, HystrixEventType.FAILURE, 20, HystrixEventType.FALLBACK_FAILURE);
    cmd.observe();
    try {
        assertTrue(latch.await(10000, TimeUnit.MILLISECONDS));
    } catch (InterruptedException ex) {
        fail("Interrupted ex");
    }
    assertEquals(HystrixEventType.values().length, stream.getLatest().length);
    long[] expected = new long[HystrixEventType.values().length];
    expected[HystrixEventType.FAILURE.ordinal()] = 1;
    expected[HystrixEventType.FALLBACK_FAILURE.ordinal()] = 1;
    expected[HystrixEventType.EXCEPTION_THROWN.ordinal()] = 1;
    System.out.println("ReqLog : " + HystrixRequestLog.getCurrentRequest().getExecutedCommandsAsString());
    assertArrayEquals(expected, stream.getLatest());
}

Example 47 with HystrixCommandKey

use of com.netflix.hystrix.HystrixCommandKey in project Hystrix by Netflix.

the class RollingCommandEventCounterStreamTest method testSingleSuccess.

@Test
public void testSingleSuccess() {
    HystrixCommandKey key = HystrixCommandKey.Factory.asKey("CMD-RollingCounter-B");
    stream = RollingCommandEventCounterStream.getInstance(key, 10, 100);
    stream.startCachingStreamValuesIfUnstarted();
    final CountDownLatch latch = new CountDownLatch(1);
    stream.observe().take(10).subscribe(getSubscriber(latch));
    CommandStreamTest.Command cmd = CommandStreamTest.Command.from(groupKey, key, HystrixEventType.SUCCESS, 20);
    cmd.observe();
    try {
        assertTrue(latch.await(10000, TimeUnit.MILLISECONDS));
    } catch (InterruptedException ex) {
        fail("Interrupted ex");
    }
    assertEquals(HystrixEventType.values().length, stream.getLatest().length);
    long[] expected = new long[HystrixEventType.values().length];
    expected[HystrixEventType.SUCCESS.ordinal()] = 1;
    System.out.println("ReqLog : " + HystrixRequestLog.getCurrentRequest().getExecutedCommandsAsString());
    assertArrayEquals(expected, stream.getLatest());
}

Example 48 with HystrixCommandKey

use of com.netflix.hystrix.HystrixCommandKey in project Hystrix by Netflix.

the class RollingCommandEventCounterStreamTest method testSemaphoreRejected.

@Test
public void testSemaphoreRejected() {
    HystrixCommandKey key = HystrixCommandKey.Factory.asKey("CMD-RollingCounter-H");
    stream = RollingCommandEventCounterStream.getInstance(key, 10, 100);
    stream.startCachingStreamValuesIfUnstarted();
    final CountDownLatch latch = new CountDownLatch(1);
    stream.observe().take(10).subscribe(getSubscriber(latch));
    //10 commands will saturate semaphore when called from different threads.
    //submit 2 more requests and they should be SEMAPHORE_REJECTED
    //should see 10 SUCCESSes, 2 SEMAPHORE_REJECTED and 2 FALLBACK_SUCCESSes
    List<CommandStreamTest.Command> saturators = new ArrayList<CommandStreamTest.Command>();
    for (int i = 0; i < 10; i++) {
        saturators.add(CommandStreamTest.Command.from(groupKey, key, HystrixEventType.SUCCESS, 200, HystrixCommandProperties.ExecutionIsolationStrategy.SEMAPHORE));
    }
    CommandStreamTest.Command rejected1 = CommandStreamTest.Command.from(groupKey, key, HystrixEventType.SUCCESS, 0, HystrixCommandProperties.ExecutionIsolationStrategy.SEMAPHORE);
    CommandStreamTest.Command rejected2 = CommandStreamTest.Command.from(groupKey, key, HystrixEventType.SUCCESS, 0, HystrixCommandProperties.ExecutionIsolationStrategy.SEMAPHORE);
    for (final CommandStreamTest.Command saturator : saturators) {
        new Thread(new HystrixContextRunnable(new Runnable() {

            @Override
            public void run() {
                saturator.observe();
            }
        })).start();
    }
    try {
        Thread.sleep(100);
    } catch (InterruptedException ie) {
        fail(ie.getMessage());
    }
    rejected1.observe();
    rejected2.observe();
    try {
        assertTrue(latch.await(10000, TimeUnit.MILLISECONDS));
    } catch (InterruptedException ex) {
        fail("Interrupted ex");
    }
    System.out.println("ReqLog : " + HystrixRequestLog.getCurrentRequest().getExecutedCommandsAsString());
    assertTrue(rejected1.isResponseSemaphoreRejected());
    assertTrue(rejected2.isResponseSemaphoreRejected());
    assertEquals(HystrixEventType.values().length, stream.getLatest().length);
    long[] expected = new long[HystrixEventType.values().length];
    expected[HystrixEventType.SUCCESS.ordinal()] = 10;
    expected[HystrixEventType.SEMAPHORE_REJECTED.ordinal()] = 2;
    expected[HystrixEventType.FALLBACK_SUCCESS.ordinal()] = 2;
    System.out.println("ReqLog : " + HystrixRequestLog.getCurrentRequest().getExecutedCommandsAsString());
    assertArrayEquals(expected, stream.getLatest());
}

Example 49 with HystrixCommandKey

use of com.netflix.hystrix.HystrixCommandKey in project Hystrix by Netflix.

the class RollingThreadPoolMaxConcurrencyStreamTest method testConcurrencyStreamProperlyFiltersOutSemaphoreRejections.

@Test
public void testConcurrencyStreamProperlyFiltersOutSemaphoreRejections() throws InterruptedException {
    HystrixCommandGroupKey groupKey = HystrixCommandGroupKey.Factory.asKey("ThreadPool-Concurrency-I");
    HystrixThreadPoolKey threadPoolKey = HystrixThreadPoolKey.Factory.asKey("ThreadPool-Concurrency-I");
    HystrixCommandKey key = HystrixCommandKey.Factory.asKey("RollingConcurrency-I");
    stream = RollingThreadPoolMaxConcurrencyStream.getInstance(threadPoolKey, 10, 100);
    stream.startCachingStreamValuesIfUnstarted();
    final CountDownLatch latch = new CountDownLatch(1);
    stream.observe().take(10).subscribe(getSubscriber(latch));
    //10 commands executed concurrently on different caller threads should saturate semaphore
    //once these are in-flight, execute 10 more concurrently on new caller threads.
    //since these are semaphore-rejected, the max concurrency should be 10
    List<Command> saturators = new ArrayList<Command>();
    for (int i = 0; i < 10; i++) {
        saturators.add(Command.from(groupKey, key, HystrixEventType.SUCCESS, 400, HystrixCommandProperties.ExecutionIsolationStrategy.SEMAPHORE));
    }
    final List<Command> rejected = new ArrayList<Command>();
    for (int i = 0; i < 10; i++) {
        rejected.add(Command.from(groupKey, key, HystrixEventType.SUCCESS, 100, HystrixCommandProperties.ExecutionIsolationStrategy.SEMAPHORE));
    }
    for (final Command saturatingCmd : saturators) {
        threadPool.submit(new HystrixContextRunnable(new Runnable() {

            @Override
            public void run() {
                saturatingCmd.observe();
            }
        }));
    }
    Thread.sleep(30);
    for (final Command rejectedCmd : rejected) {
        threadPool.submit(new HystrixContextRunnable(new Runnable() {

            @Override
            public void run() {
                rejectedCmd.observe();
            }
        }));
    }
    assertTrue(latch.await(10000, TimeUnit.MILLISECONDS));
    System.out.println("ReqLog : " + HystrixRequestLog.getCurrentRequest().getExecutedCommandsAsString());
    for (Command rejectedCmd : rejected) {
        assertTrue(rejectedCmd.isResponseSemaphoreRejected() || rejectedCmd.isResponseShortCircuited());
    }
    //should be 0 since all are executed in a semaphore
    assertEquals(0, stream.getLatestRollingMax());
}

Example 50 with HystrixCommandKey

use of com.netflix.hystrix.HystrixCommandKey in project Hystrix by Netflix.

the class RollingThreadPoolMaxConcurrencyStreamTest method testStartsAndEndsInSameBucketProduceValue.

@Test
public void testStartsAndEndsInSameBucketProduceValue() throws InterruptedException {
    HystrixCommandGroupKey groupKey = HystrixCommandGroupKey.Factory.asKey("ThreadPool-Concurrency-B");
    HystrixThreadPoolKey threadPoolKey = HystrixThreadPoolKey.Factory.asKey("ThreadPool-Concurrency-B");
    HystrixCommandKey key = HystrixCommandKey.Factory.asKey("RollingConcurrency-B");
    stream = RollingThreadPoolMaxConcurrencyStream.getInstance(threadPoolKey, 10, 100);
    stream.startCachingStreamValuesIfUnstarted();
    final CountDownLatch latch = new CountDownLatch(1);
    stream.observe().take(10).subscribe(getSubscriber(latch));
    Command cmd1 = Command.from(groupKey, key, HystrixEventType.SUCCESS, 50);
    Command cmd2 = Command.from(groupKey, key, HystrixEventType.SUCCESS, 40);
    cmd1.observe();
    Thread.sleep(1);
    cmd2.observe();
    assertTrue(latch.await(10000, TimeUnit.MILLISECONDS));
    assertEquals(2, stream.getLatestRollingMax());
}