Examples with Instance com.tencent.polaris.api.pojo.Instance used on opensource projects

Example 1 with Instance

use of com.tencent.polaris.api.pojo.Instance in project polaris-java by polarismesh.

the class InstancesDetectTask method doInstanceDetectForService.

private void doInstanceDetectForService(ServiceKey serviceKey) throws PolarisException {
    ServiceEventKey svcEventKey = new ServiceEventKey(serviceKey, EventType.INSTANCE);
    ServiceInstances instances = extensions.getLocalRegistry().getInstances(new ResourceFilter(svcEventKey, true, true));
    if (!instances.isInitialized() || instances.getInstances().size() == 0) {
        return;
    }
    Map<Instance, DetectResult> aliveResults = new HashMap<>();
    for (Instance instance : instances.getInstances()) {
        if (destroy.get()) {
            // 如果要停止定时任务，则剩下的实例探测也没必要进行下去了
            break;
        }
        DetectResult result = detectInstance(instance);
        if (result == null || result.getRetStatus() != RetStatus.RetSuccess) {
            continue;
        }
        aliveResults.put(instance, result);
    }
    if (MapUtils.isNotEmpty(aliveResults)) {
        ServiceUpdateRequest updateRequest = buildInstanceUpdateResult(serviceKey, aliveResults);
        LOG.info("update cache for outlier detect, value is {}", updateRequest);
        extensions.getLocalRegistry().updateInstances(updateRequest);
    }
}

Example 2 with Instance

use of com.tencent.polaris.api.pojo.Instance in project polaris-java by polarismesh.

the class InstancesDetectTask method buildInstanceUpdateResult.

private ServiceUpdateRequest buildInstanceUpdateResult(ServiceKey serviceKey, Map<Instance, DetectResult> aliveResults) {
    List<InstanceProperty> instances = new ArrayList<>();
    for (Map.Entry<Instance, DetectResult> entry : aliveResults.entrySet()) {
        Map<String, Object> properties = new HashMap<>();
        properties.put(PROPERTY_DETECT_RESULT, entry.getValue());
        InstanceProperty instanceProperty = new InstanceProperty(entry.getKey(), properties);
        instances.add(instanceProperty);
    }
    return new ServiceUpdateRequest(serviceKey, instances);
}

Example 3 with Instance

use of com.tencent.polaris.api.pojo.Instance in project polaris-java by polarismesh.

the class CircuitBreakerTest method testCircuitBreakByErrorRate.

@Test
public void testCircuitBreakByErrorRate() {
    Configuration configuration = TestUtils.configWithEnvAddress();
    try (ConsumerAPI consumerAPI = DiscoveryAPIFactory.createConsumerAPIByConfig(configuration)) {
        GetInstancesRequest getInstancesRequest = new GetInstancesRequest();
        getInstancesRequest.setNamespace(NAMESPACE_TEST);
        getInstancesRequest.setService(SERVICE_CIRCUIT_BREAKER);
        InstancesResponse instances = consumerAPI.getInstances(getInstancesRequest);
        Assert.assertEquals(MAX_COUNT, instances.getInstances().length);
        Instance instanceToLimit = instances.getInstances()[1];
        // report 60 fail in 500ms
        for (int i = 0; i < 60; ++i) {
            ServiceCallResult result = instanceToResult(instanceToLimit);
            result.setDelay(1000L);
            if (i % 2 == 0) {
                result.setRetCode(0);
                result.setRetStatus(RetStatus.RetSuccess);
                Utils.sleepUninterrupted(1);
            } else {
                result.setRetCode(-1);
                result.setRetStatus(RetStatus.RetFail);
            }
            consumerAPI.updateServiceCallResult(result);
            Utils.sleepUninterrupted(1);
        }
        Utils.sleepUninterrupted(1000);
        instances = consumerAPI.getInstances(getInstancesRequest);
        Assert.assertEquals(MAX_COUNT - 1, instances.getInstances().length);
        Instance[] instanceArray = instances.getInstances();
        boolean exists = false;
        for (int i = 0; i < instanceArray.length; ++i) {
            if (instanceArray[i].getId().equals(instanceToLimit.getId())) {
                exists = true;
            }
        }
        Assert.assertFalse(exists);
        Utils.sleepUninterrupted(10000);
        // default halfopen pass 3 success
        int requestCountAfterHalfOpen = configuration.getConsumer().getCircuitBreaker().getRequestCountAfterHalfOpen();
        for (int i = 0; i < requestCountAfterHalfOpen; i++) {
            ServiceCallResult result = instanceToResult(instanceToLimit);
            result.setRetCode(-1);
            result.setRetStatus(RetStatus.RetSuccess);
            consumerAPI.updateServiceCallResult(result);
            Utils.sleepUninterrupted(200);
            consumerAPI.updateServiceCallResult(result);
        }
        LOG.info("start to test half open to close");
        Utils.sleepUninterrupted(1000);
        instances = consumerAPI.getInstances(getInstancesRequest);
        Assert.assertEquals(MAX_COUNT, instances.getInstances().length);
    }
}

Example 4 with Instance

use of com.tencent.polaris.api.pojo.Instance in project polaris-java by polarismesh.

the class CircuitBreakerTest method testUpdateServiceCallResult.

@Test
public void testUpdateServiceCallResult() {
    Configuration configuration = TestUtils.configWithEnvAddress();
    try (ConsumerAPI consumerAPI = DiscoveryAPIFactory.createConsumerAPIByConfig(configuration)) {
        int index = 1;
        GetInstancesRequest req = new GetInstancesRequest();
        req.setNamespace(NAMESPACE_TEST);
        req.setService(SERVICE_CIRCUIT_BREAKER);
        InstancesResponse instances = consumerAPI.getInstances(req);
        Assert.assertEquals(MAX_COUNT, instances.getInstances().length);
        Instance instanceToLimit = instances.getInstances()[index];
        ServiceCallResult result = instanceToResult(instanceToLimit);
        result.setRetCode(-1);
        result.setDelay(1000L);
        result.setRetStatus(RetStatus.RetFail);
        consumerAPI.updateServiceCallResult(result);
    }
}

Example 5 with Instance

use of com.tencent.polaris.api.pojo.Instance in project polaris-java by polarismesh.

the class CircuitBreakerTest method testCircuitBreakByErrorCount.

@Test
public void testCircuitBreakByErrorCount() {
    Configuration configuration = TestUtils.configWithEnvAddress();
    try (ConsumerAPI consumerAPI = DiscoveryAPIFactory.createConsumerAPIByConfig(configuration)) {
        Utils.sleepUninterrupted(10000);
        Assert.assertNotNull(consumerAPI);
        GetInstancesRequest getInstancesRequest = new GetInstancesRequest();
        getInstancesRequest.setNamespace(NAMESPACE_TEST);
        getInstancesRequest.setService(SERVICE_CIRCUIT_BREAKER);
        InstancesResponse instances = consumerAPI.getInstances(getInstancesRequest);
        Assert.assertEquals(MAX_COUNT, instances.getInstances().length);
        Instance instanceToLimit = instances.getInstances()[1];
        // report 60 fail in 500ms
        for (int i = 0; i < 60; ++i) {
            ServiceCallResult result = instanceToResult(instanceToLimit);
            result.setRetCode(-1);
            result.setDelay(1000L);
            result.setRetStatus(RetStatus.RetFail);
            consumerAPI.updateServiceCallResult(result);
            if (i % 10 == 0) {
                Utils.sleepUninterrupted(1);
            }
        }
        Utils.sleepUninterrupted(1000);
        instances = consumerAPI.getInstances(getInstancesRequest);
        Assert.assertEquals(MAX_COUNT - 1, instances.getInstances().length);
        Instance[] instanceArray = instances.getInstances();
        boolean exists = false;
        for (int i = 0; i < instanceArray.length; ++i) {
            if (instanceArray[i].getId().equals(instanceToLimit.getId())) {
                exists = true;
            }
        }
        Assert.assertFalse(exists);
        LOG.info("start to test half open by error rate");
        Utils.sleepUninterrupted(10000);
        instances = consumerAPI.getInstances(getInstancesRequest);
        Assert.assertEquals(MAX_COUNT, instances.getInstances().length);
        for (Instance instance : instances.getInstances()) {
            CircuitBreakerStatus circuitBreakerStatus = instance.getCircuitBreakerStatus();
            if (null != circuitBreakerStatus && circuitBreakerStatus.getStatus() == CircuitBreakerStatus.Status.HALF_OPEN) {
                LOG.info("half open instance is {}", instance);
            }
        }
        // default halfopen pass 3 success
        int requestCountAfterHalfOpen = configuration.getConsumer().getCircuitBreaker().getRequestCountAfterHalfOpen();
        for (int i = 0; i < requestCountAfterHalfOpen; i++) {
            ServiceCallResult result = instanceToResult(instanceToLimit);
            result.setRetCode(-1);
            result.setRetStatus(RetStatus.RetSuccess);
            consumerAPI.updateServiceCallResult(result);
            Utils.sleepUninterrupted(200);
            consumerAPI.updateServiceCallResult(result);
        }
        LOG.info("start to test half open to close");
        Utils.sleepUninterrupted(1000);
        instances = consumerAPI.getInstances(getInstancesRequest);
        Assert.assertEquals(MAX_COUNT, instances.getInstances().length);
    }
}