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

Example 21 with HystrixCommandKey

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

the class CumulativeCommandEventCounterStreamTest method testFallbackRejection.

@Test
public void testFallbackRejection() {
    HystrixCommandKey key = HystrixCommandKey.Factory.asKey("CMD-CumulativeCounter-L");
    stream = CumulativeCommandEventCounterStream.getInstance(key, 10, 500);
    stream.startCachingStreamValuesIfUnstarted();
    final CountDownLatch latch = new CountDownLatch(1);
    stream.observe().take(5).subscribe(getSubscriber(latch));
    //fallback semaphore size is 5.  So let 5 commands saturate that semaphore, then
    //let 2 more commands go to fallback.  they should get rejected by the fallback-semaphore
    List<Command> fallbackSaturators = new ArrayList<Command>();
    for (int i = 0; i < 5; i++) {
        fallbackSaturators.add(Command.from(groupKey, key, HystrixEventType.FAILURE, 20, HystrixEventType.FALLBACK_SUCCESS, 400));
    }
    Command rejection1 = Command.from(groupKey, key, HystrixEventType.FAILURE, 20, HystrixEventType.FALLBACK_SUCCESS, 0);
    Command rejection2 = Command.from(groupKey, key, HystrixEventType.FAILURE, 20, HystrixEventType.FALLBACK_SUCCESS, 0);
    for (Command saturator : fallbackSaturators) {
        saturator.observe();
    }
    try {
        Thread.sleep(70);
    } catch (InterruptedException ex) {
        fail(ex.getMessage());
    }
    rejection1.observe();
    rejection2.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()] = 7;
    expected[HystrixEventType.FALLBACK_SUCCESS.ordinal()] = 5;
    expected[HystrixEventType.FALLBACK_REJECTION.ordinal()] = 2;
    expected[HystrixEventType.EXCEPTION_THROWN.ordinal()] = 2;
    assertArrayEquals(expected, stream.getLatest());
}

Example 22 with HystrixCommandKey

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

the class CumulativeCommandEventCounterStreamTest method testShortCircuited.

@Test
public void testShortCircuited() {
    HystrixCommandKey key = HystrixCommandKey.Factory.asKey("CMD-CumulativeCounter-G");
    stream = CumulativeCommandEventCounterStream.getInstance(key, 10, 500);
    stream.startCachingStreamValuesIfUnstarted();
    final CountDownLatch latch = new CountDownLatch(1);
    stream.observe().take(5).subscribe(getSubscriber(latch));
    //3 failures in a row will trip circuit.  let bucket roll once then submit 2 requests.
    //should see 3 FAILUREs and 2 SHORT_CIRCUITs and then 5 FALLBACK_SUCCESSes
    Command failure1 = Command.from(groupKey, key, HystrixEventType.FAILURE, 20);
    Command failure2 = Command.from(groupKey, key, HystrixEventType.FAILURE, 20);
    Command failure3 = Command.from(groupKey, key, HystrixEventType.FAILURE, 20);
    Command shortCircuit1 = Command.from(groupKey, key, HystrixEventType.SUCCESS);
    Command shortCircuit2 = Command.from(groupKey, key, HystrixEventType.SUCCESS);
    failure1.observe();
    failure2.observe();
    failure3.observe();
    try {
        Thread.sleep(500);
    } catch (InterruptedException ie) {
        fail(ie.getMessage());
    }
    shortCircuit1.observe();
    shortCircuit2.observe();
    try {
        assertTrue(latch.await(10000, TimeUnit.MILLISECONDS));
    } catch (InterruptedException ex) {
        fail("Interrupted ex");
    }
    System.out.println("ReqLog : " + HystrixRequestLog.getCurrentRequest().getExecutedCommandsAsString());
    assertTrue(shortCircuit1.isResponseShortCircuited());
    assertTrue(shortCircuit2.isResponseShortCircuited());
    assertEquals(HystrixEventType.values().length, stream.getLatest().length);
    long[] expected = new long[HystrixEventType.values().length];
    expected[HystrixEventType.FAILURE.ordinal()] = 3;
    expected[HystrixEventType.SHORT_CIRCUITED.ordinal()] = 2;
    expected[HystrixEventType.FALLBACK_SUCCESS.ordinal()] = 5;
    assertArrayEquals(expected, stream.getLatest());
}

Example 23 with HystrixCommandKey

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

the class CumulativeCommandEventCounterStreamTest method testThreadPoolRejected.

@Test
public void testThreadPoolRejected() {
    HystrixCommandKey key = HystrixCommandKey.Factory.asKey("CMD-CumulativeCounter-I");
    stream = CumulativeCommandEventCounterStream.getInstance(key, 10, 500);
    stream.startCachingStreamValuesIfUnstarted();
    final CountDownLatch latch = new CountDownLatch(1);
    stream.observe().take(5).subscribe(getSubscriber(latch));
    //10 commands will saturate threadpools when called concurrently.
    //submit 2 more requests and they should be THREADPOOL_REJECTED
    //should see 10 SUCCESSes, 2 THREADPOOL_REJECTED and 2 FALLBACK_SUCCESSes
    List<Command> saturators = new ArrayList<Command>();
    for (int i = 0; i < 10; i++) {
        saturators.add(Command.from(groupKey, key, HystrixEventType.SUCCESS, 500));
    }
    Command rejected1 = Command.from(groupKey, key, HystrixEventType.SUCCESS, 0);
    Command rejected2 = Command.from(groupKey, key, HystrixEventType.SUCCESS, 0);
    for (final Command saturator : saturators) {
        saturator.observe();
    }
    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.isResponseThreadPoolRejected());
    assertTrue(rejected2.isResponseThreadPoolRejected());
    assertEquals(HystrixEventType.values().length, stream.getLatest().length);
    long[] expected = new long[HystrixEventType.values().length];
    expected[HystrixEventType.SUCCESS.ordinal()] = 10;
    expected[HystrixEventType.THREAD_POOL_REJECTED.ordinal()] = 2;
    expected[HystrixEventType.FALLBACK_SUCCESS.ordinal()] = 2;
    assertArrayEquals(expected, stream.getLatest());
}

Example 24 with HystrixCommandKey

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

the class CumulativeCommandEventCounterStreamTest method testSingleTimeout.

@Test
public void testSingleTimeout() {
    HystrixCommandKey key = HystrixCommandKey.Factory.asKey("CMD-CumulativeCounter-D");
    stream = CumulativeCommandEventCounterStream.getInstance(key, 10, 500);
    stream.startCachingStreamValuesIfUnstarted();
    final CountDownLatch latch = new CountDownLatch(1);
    stream.observe().take(5).subscribe(getSubscriber(latch));
    Command cmd = Command.from(groupKey, key, HystrixEventType.TIMEOUT);
    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.TIMEOUT.ordinal()] = 1;
    expected[HystrixEventType.FALLBACK_SUCCESS.ordinal()] = 1;
    assertArrayEquals(expected, stream.getLatest());
}

Example 25 with HystrixCommandKey

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

the class CumulativeCommandEventCounterStreamTest method testSingleBadRequest.

@Test
public void testSingleBadRequest() {
    HystrixCommandKey key = HystrixCommandKey.Factory.asKey("CMD-CumulativeCounter-E");
    stream = CumulativeCommandEventCounterStream.getInstance(key, 10, 500);
    stream.startCachingStreamValuesIfUnstarted();
    final CountDownLatch latch = new CountDownLatch(1);
    stream.observe().take(5).subscribe(getSubscriber(latch));
    Command cmd = Command.from(groupKey, key, HystrixEventType.BAD_REQUEST);
    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.BAD_REQUEST.ordinal()] = 1;
    expected[HystrixEventType.EXCEPTION_THROWN.ordinal()] = 1;
    assertArrayEquals(expected, stream.getLatest());
}