Examples with ServiceCombServer org.apache.servicecomb.loadbalance.ServiceCombServer used on opensource projects

Example 1 with ServiceCombServer

use of org.apache.servicecomb.loadbalance.ServiceCombServer in project java-chassis by ServiceComb.

the class IsolationDiscoveryFilterTest method before.

@Before
public void before() {
    discoveryContext = new DiscoveryContext();
    discoveryContext.setInputParameters(invocation);
    discoveryTreeNode = new DiscoveryTreeNode();
    Mockito.doAnswer(a -> a.getArguments()[0]).when(transport).parseAddress(Mockito.anyString());
    data = new HashMap<>();
    for (int i = 0; i < 3; ++i) {
        MicroserviceInstance instance = new MicroserviceInstance();
        instance.setInstanceId("i" + i);
        String endpoint = "rest://127.0.0.1:" + i;
        instance.setEndpoints(Collections.singletonList(endpoint));
        data.put(instance.getInstanceId(), instance);
        ServiceCombServer serviceCombServer = new ServiceCombServer(invocation.getMicroserviceName(), transport, new CacheEndpoint(endpoint, instance));
        ServiceCombLoadBalancerStats.INSTANCE.getServiceCombServerStats(serviceCombServer);
    }
    discoveryTreeNode.data(data);
    filter = new IsolationDiscoveryFilter();
    TestServiceCombServerStats.releaseTryingChance();
}

Example 2 with ServiceCombServer

use of org.apache.servicecomb.loadbalance.ServiceCombServer in project java-chassis by ServiceComb.

the class IsolationDiscoveryFilterTest method discovery_not_try_isolated_instance_concurrently.

@Test
public void discovery_not_try_isolated_instance_concurrently() {
    ServiceCombServer server0 = ServiceCombLoadBalancerStats.INSTANCE.getServiceCombServer(data.get("i0"));
    ServiceCombServerStats serviceCombServerStats = ServiceCombLoadBalancerStats.INSTANCE.getServiceCombServerStats(server0);
    for (int i = 0; i < 5; ++i) {
        serviceCombServerStats.markFailure();
    }
    ServiceCombLoadBalancerStats.INSTANCE.markIsolated(server0, true);
    letIsolatedInstancePassSingleTestTime(serviceCombServerStats);
    Assert.assertTrue(ServiceCombServerStats.isolatedServerCanTry());
    // The first invocation can occupy the trying chance
    DiscoveryTreeNode childNode = filter.discovery(discoveryContext, discoveryTreeNode);
    Map<String, MicroserviceInstance> childNodeData = childNode.data();
    Assert.assertThat(childNodeData.keySet(), Matchers.containsInAnyOrder("i0", "i1", "i2"));
    Assert.assertEquals(data.get("i0"), childNodeData.get("i0"));
    Assert.assertEquals(data.get("i1"), childNodeData.get("i1"));
    Assert.assertEquals(data.get("i2"), childNodeData.get("i2"));
    Assert.assertFalse(ServiceCombServerStats.isolatedServerCanTry());
    // Other invocation cannot get trying chance concurrently
    childNode = filter.discovery(discoveryContext, discoveryTreeNode);
    childNodeData = childNode.data();
    Assert.assertThat(childNodeData.keySet(), Matchers.containsInAnyOrder("i1", "i2"));
    Assert.assertEquals(data.get("i1"), childNodeData.get("i1"));
    Assert.assertEquals(data.get("i2"), childNodeData.get("i2"));
    ServiceCombServerStats.checkAndReleaseTryingChance(// after the first invocation releases the trying chance
    invocation);
    // Other invocation can get the trying chance
    childNode = filter.discovery(discoveryContext, discoveryTreeNode);
    childNodeData = childNode.data();
    Assert.assertThat(childNodeData.keySet(), Matchers.containsInAnyOrder("i0", "i1", "i2"));
    Assert.assertEquals(data.get("i0"), childNodeData.get("i0"));
    Assert.assertEquals(data.get("i1"), childNodeData.get("i1"));
    Assert.assertEquals(data.get("i2"), childNodeData.get("i2"));
    Assert.assertFalse(ServiceCombServerStats.isolatedServerCanTry());
}

Example 3 with ServiceCombServer

use of org.apache.servicecomb.loadbalance.ServiceCombServer in project java-chassis by ServiceComb.

the class IsolationDiscoveryFilterTest method discovery_try_isolated_instance_after_singleTestTime.

@Test
public void discovery_try_isolated_instance_after_singleTestTime() {
    ServiceCombServer server0 = ServiceCombLoadBalancerStats.INSTANCE.getServiceCombServer(data.get("i0"));
    ServiceCombServerStats serviceCombServerStats = ServiceCombLoadBalancerStats.INSTANCE.getServiceCombServerStats(server0);
    for (int i = 0; i < 5; ++i) {
        serviceCombServerStats.markFailure();
    }
    letIsolatedInstancePassSingleTestTime(serviceCombServerStats);
    ServiceCombLoadBalancerStats.INSTANCE.markIsolated(server0, true);
    Assert.assertTrue(ServiceCombServerStats.isolatedServerCanTry());
    Assert.assertNull(TestServiceCombServerStats.getTryingIsolatedServerInvocation());
    DiscoveryTreeNode childNode = filter.discovery(discoveryContext, discoveryTreeNode);
    Map<String, MicroserviceInstance> childNodeData = childNode.data();
    Assert.assertThat(childNodeData.keySet(), Matchers.containsInAnyOrder("i0", "i1", "i2"));
    Assert.assertEquals(data.get("i0"), childNodeData.get("i0"));
    Assert.assertEquals(data.get("i1"), childNodeData.get("i1"));
    Assert.assertEquals(data.get("i2"), childNodeData.get("i2"));
    Assert.assertTrue(serviceCombServerStats.isIsolated());
    Assert.assertFalse(ServiceCombServerStats.isolatedServerCanTry());
    Assert.assertSame(invocation, TestServiceCombServerStats.getTryingIsolatedServerInvocation());
}

Example 4 with ServiceCombServer

use of org.apache.servicecomb.loadbalance.ServiceCombServer in project java-chassis by ServiceComb.

the class IsolationDiscoveryFilterTest method discovery_keep_minIsolationTime.

@Test
public void discovery_keep_minIsolationTime() {
    ServiceCombServer server0 = ServiceCombLoadBalancerStats.INSTANCE.getServiceCombServer(data.get("i0"));
    ServiceCombLoadBalancerStats.INSTANCE.markIsolated(server0, true);
    ServiceCombLoadBalancerStats.INSTANCE.markSuccess(server0);
    DiscoveryTreeNode childNode = filter.discovery(discoveryContext, discoveryTreeNode);
    Map<String, MicroserviceInstance> childNodeData = childNode.data();
    Assert.assertThat(childNodeData.keySet(), Matchers.containsInAnyOrder("i1", "i2"));
    Assert.assertEquals(data.get("i1"), childNodeData.get("i1"));
    Assert.assertEquals(data.get("i2"), childNodeData.get("i2"));
    ServiceCombServerStats serviceCombServerStats = ServiceCombLoadBalancerStats.INSTANCE.getServiceCombServerStats(server0);
    Deencapsulation.setField(serviceCombServerStats, "isolatedTime", System.currentTimeMillis() - Configuration.INSTANCE.getMinIsolationTime(invocation.getMicroserviceName()) - 1);
    childNode = filter.discovery(discoveryContext, discoveryTreeNode);
    childNodeData = childNode.data();
    Assert.assertThat(childNodeData.keySet(), Matchers.containsInAnyOrder("i0", "i1", "i2"));
    Assert.assertEquals(data.get("i0"), childNodeData.get("i0"));
    Assert.assertEquals(data.get("i1"), childNodeData.get("i1"));
    Assert.assertEquals(data.get("i2"), childNodeData.get("i2"));
}

Example 5 with ServiceCombServer

use of org.apache.servicecomb.loadbalance.ServiceCombServer in project java-chassis by ServiceComb.

the class DarklaunchServerListFilter method getFilteredListOfServers.

@Override
public List<ServiceCombServer> getFilteredListOfServers(List<ServiceCombServer> serverList, Invocation invocation) {
    DynamicStringProperty ruleStr = DynamicPropertyFactory.getInstance().getStringProperty(String.format(POLICY_SERVICE_COMB, invocation.getMicroserviceName()), null);
    if (ruleStr == null) {
        ruleStr = DynamicPropertyFactory.getInstance().getStringProperty(String.format(POLICY_CSE, invocation.getMicroserviceName()), null);
    }
    DarklaunchRule rule = DarklaunchRule.parse(ruleStr.get());
    if (rule == null) {
        return serverList;
    }
    List<ServiceCombServer> defaultGroup = new ArrayList<>();
    divideServerGroup(serverList, rule, defaultGroup);
    if (rule.getPolicyType() == PolicyType.RULE) {
        for (DarklaunchRuleItem item : rule.getRuleItems()) {
            List<ServiceCombServer> ruleServers = getRuleServers(invocation, item, defaultGroup);
            if (ruleServers != null) {
                return ruleServers;
            }
        }
    } else {
        int rate = random.nextInt(HUNDRED);
        for (DarklaunchRuleItem item : rule.getRuleItems()) {
            item.getPolicyCondition().setActual(DarklaunchRule.PROP_PERCENT, rate);
            if (item.getPolicyCondition().match()) {
                if (item.getServers().isEmpty()) {
                    return defaultGroup;
                }
                return item.getServers();
            }
            rate = rate - Integer.parseInt(item.getPolicyCondition().expected());
        }
    }
    return defaultGroup;
}