use of com.linkedin.d2.balancer.simple.SimpleLoadBalancerState in project rest.li by linkedin.
the class D2ClientJmxManager method setSimpleLoadBalancerState.
public void setSimpleLoadBalancerState(SimpleLoadBalancerState state) {
_jmxManager.registerLoadBalancerState(_prefix + "-LoadBalancerState", state);
state.register(new SimpleLoadBalancerStateListener() {
@Override
public void onStrategyAdded(String serviceName, String scheme, LoadBalancerStrategy strategy) {
_jmxManager.registerLoadBalancerStrategy(getLoadBalancerJmxName(serviceName, scheme), strategy);
}
@Override
public void onStrategyRemoved(String serviceName, String scheme, LoadBalancerStrategy strategy) {
_jmxManager.unregister(getLoadBalancerJmxName(serviceName, scheme));
}
@Override
public void onClientAdded(String clusterName, TrackerClient client) {
// We currently think we can make this no-op as the info provided is not helpful
// _jmxManager.checkReg(new DegraderControl((DegraderImpl) client.getDegrader(DefaultPartitionAccessor.DEFAULT_PARTITION_ID)),
// _prefix + "-" + clusterName + "-" + client.getUri().toString().replace("://", "-") + "-TrackerClient-Degrader");
}
@Override
public void onClientRemoved(String clusterName, TrackerClient client) {
// We currently think we can make this no-op as the info provided is not helpful
// _jmxManager.unregister(_prefix + "-" + clusterName + "-" + client.getUri().toString().replace("://", "-") + "-TrackerClient-Degrader");
}
private String getLoadBalancerJmxName(String serviceName, String scheme) {
return serviceName + "-" + scheme + "-LoadBalancerStrategy";
}
});
}
use of com.linkedin.d2.balancer.simple.SimpleLoadBalancerState in project rest.li by linkedin.
the class LoadBalancerClientCli method getLoadBalancer.
public static SimpleLoadBalancer getLoadBalancer(ZKConnection zkclient, String zkserver, String d2path, String service) throws IOException, IllegalStateException, URISyntaxException, PropertyStoreException, ExecutionException, TimeoutException, InterruptedException {
// zk stores
String clstoreString = zkserver + ZKFSUtil.clusterPath(d2path);
String scstoreString = zkserver + ZKFSUtil.servicePath(d2path);
String uristoreString = zkserver + ZKFSUtil.uriPath(d2path);
ZooKeeperPermanentStore<ClusterProperties> zkClusterRegistry = (ZooKeeperPermanentStore<ClusterProperties>) getStore(zkclient, clstoreString, new ClusterPropertiesJsonSerializer());
ZooKeeperPermanentStore<ServiceProperties> zkServiceRegistry = (ZooKeeperPermanentStore<ServiceProperties>) getStore(zkclient, scstoreString, new ServicePropertiesJsonSerializer());
ZooKeeperEphemeralStore<UriProperties> zkUriRegistry = (ZooKeeperEphemeralStore<UriProperties>) getEphemeralStore(zkclient, uristoreString, new UriPropertiesJsonSerializer(), new UriPropertiesMerger());
ScheduledThreadPoolExecutor executor = new ScheduledThreadPoolExecutor(1, new NamedThreadFactory("D2 PropertyEventExecutor"));
PropertyEventBus<ServiceProperties> serviceBus = new PropertyEventBusImpl<>(executor, zkServiceRegistry);
PropertyEventBus<UriProperties> uriBus = new PropertyEventBusImpl<>(executor, zkUriRegistry);
PropertyEventBus<ClusterProperties> clusterBus = new PropertyEventBusImpl<>(executor, zkClusterRegistry);
Map<String, LoadBalancerStrategyFactory<? extends LoadBalancerStrategy>> loadBalancerStrategyFactories = new HashMap<>();
loadBalancerStrategyFactories.put("random", new RandomLoadBalancerStrategyFactory());
loadBalancerStrategyFactories.put("degrader", new DegraderLoadBalancerStrategyFactoryV3());
loadBalancerStrategyFactories.put("degraderV2", new DegraderLoadBalancerStrategyFactoryV3());
loadBalancerStrategyFactories.put("degraderV3", new DegraderLoadBalancerStrategyFactoryV3());
loadBalancerStrategyFactories.put("degraderV2_1", new DegraderLoadBalancerStrategyFactoryV3());
Map<String, TransportClientFactory> clientFactories = new HashMap<>();
clientFactories.put("http", new HttpClientFactory.Builder().build());
// create the state
SimpleLoadBalancerState state = new SimpleLoadBalancerState(executor, uriBus, clusterBus, serviceBus, clientFactories, loadBalancerStrategyFactories, null, null, false);
SimpleLoadBalancer balancer = new SimpleLoadBalancer(state, 5, TimeUnit.SECONDS, executor);
FutureCallback<None> callback = new FutureCallback<>();
balancer.start(callback);
callback.get(5, TimeUnit.SECONDS);
new JmxManager().registerLoadBalancer("balancer", balancer).registerLoadBalancerState("state", state).registerScheduledThreadPoolExecutor("executorService", executor).registerZooKeeperPermanentStore("zkClusterRegistry", zkClusterRegistry).registerZooKeeperPermanentStore("zkServiceRegistry", zkServiceRegistry).registerZooKeeperEphemeralStore("zkUriRegistry", zkUriRegistry);
return balancer;
}
use of com.linkedin.d2.balancer.simple.SimpleLoadBalancerState in project rest.li by linkedin.
the class SimpleLoadBalancerStrawMan method main.
public static void main(String[] args) throws URISyntaxException, ServiceUnavailableException {
// define the load balancing strategies that we support (round robin, etc)
Map<String, LoadBalancerStrategyFactory<? extends LoadBalancerStrategy>> loadBalancerStrategyFactories = new HashMap<>();
loadBalancerStrategyFactories.put("rr", new RandomLoadBalancerStrategyFactory());
loadBalancerStrategyFactories.put("degrader", new DegraderLoadBalancerStrategyFactoryV3());
// define the clients that we support (http, etc)
Map<String, TransportClientFactory> clientFactories = new HashMap<>();
clientFactories.put("http", new HttpClientFactory.Builder().build());
// listen for service updates (could be a glu discovery client, zk discovery client,
// config discovery client, etc)
ScheduledExecutorService executorService = Executors.newSingleThreadScheduledExecutor();
MockStore<ServiceProperties> serviceRegistry = new MockStore<>();
MockStore<ClusterProperties> clusterRegistry = new MockStore<>();
MockStore<UriProperties> uriRegistry = new MockStore<>();
SimpleLoadBalancerState state = new SimpleLoadBalancerState(executorService, uriRegistry, clusterRegistry, serviceRegistry, clientFactories, loadBalancerStrategyFactories);
// create the load balancer
SimpleLoadBalancer loadBalancer = new SimpleLoadBalancer(state, executorService);
final TransportClient tc = loadBalancer.getClient(new URIRequest("d2://browsemaps/52"), new RequestContext());
final Client c = new TransportClientAdapter(tc, true);
c.restRequest(null);
}
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