azagrebin commented on a change in pull request #11427: [FLINK-15790][k8s] Make
FlinkKubeClient and its implementations asynchronous
URL: https://github.com/apache/flink/pull/11427#discussion_r401702249
##########
File path:
flink-kubernetes/src/main/java/org/apache/flink/kubernetes/kubeclient/Fabric8FlinkKubeClient.java
##########
@@ -61,158 +61,180 @@
private final String clusterId;
private final String nameSpace;
- public Fabric8FlinkKubeClient(Configuration flinkConfig,
KubernetesClient client) {
+ private final ExecutorWrapper executorWrapper;
+
+ public Fabric8FlinkKubeClient(Configuration flinkConfig,
KubernetesClient client, ExecutorWrapper executorWrapper) {
this.flinkConfig = checkNotNull(flinkConfig);
this.internalClient = checkNotNull(client);
this.clusterId =
checkNotNull(flinkConfig.getString(KubernetesConfigOptions.CLUSTER_ID));
this.nameSpace =
flinkConfig.getString(KubernetesConfigOptions.NAMESPACE);
+
+ this.executorWrapper = executorWrapper;
}
@Override
- public void createJobManagerComponent(KubernetesJobManagerSpecification
kubernetesJMSpec) {
+ public CompletableFuture<Void>
createJobManagerComponent(KubernetesJobManagerSpecification kubernetesJMSpec) {
final Deployment deployment = kubernetesJMSpec.getDeployment();
final List<HasMetadata> accompanyingResources =
kubernetesJMSpec.getAccompanyingResources();
// create Deployment
LOG.debug("Start to create deployment with spec {}",
deployment.getSpec().toString());
- final Deployment createdDeployment = this.internalClient
- .apps()
- .deployments()
- .inNamespace(this.nameSpace)
- .create(deployment);
-
- // Note that we should use the uid of the created Deployment
for the OwnerReference.
- setOwnerReference(createdDeployment, accompanyingResources);
- this.internalClient
- .resourceList(accompanyingResources)
- .inNamespace(this.nameSpace)
- .createOrReplace();
+ return CompletableFuture.runAsync(() -> {
+ final Deployment createdDeployment = this.internalClient
+ .apps()
+ .deployments()
+ .inNamespace(this.nameSpace)
+ .create(deployment);
+
+ // Note that we should use the uid of the created
Deployment for the OwnerReference.
+ setOwnerReference(createdDeployment,
accompanyingResources);
+
+ this.internalClient
+ .resourceList(accompanyingResources)
+ .inNamespace(this.nameSpace)
+ .createOrReplace();
+ }, executorWrapper.getExecutor());
}
@Override
public void createTaskManagerPod(KubernetesPod kubernetesPod) {
- final Deployment masterDeployment = this.internalClient
- .apps()
- .deployments()
- .inNamespace(this.nameSpace)
- .withName(KubernetesUtils.getDeploymentName(clusterId))
- .get();
-
- if (masterDeployment == null) {
- throw new RuntimeException(
- "Failed to find Deployment named " + clusterId
+ " in namespace " + this.nameSpace);
- }
+ CompletableFuture.runAsync(() -> {
+ final Deployment masterDeployment = this.internalClient
+ .apps()
+ .deployments()
+ .inNamespace(this.nameSpace)
+
.withName(KubernetesUtils.getDeploymentName(clusterId))
+ .get();
+
+ if (masterDeployment == null) {
+ throw new RuntimeException(
+ "Failed to find Deployment named " +
clusterId + " in namespace " + this.nameSpace);
+ }
- // Note that we should use the uid of the master Deployment for
the OwnerReference.
- setOwnerReference(masterDeployment,
Collections.singletonList(kubernetesPod.getInternalResource()));
+ // Note that we should use the uid of the master
Deployment for the OwnerReference.
+ setOwnerReference(masterDeployment,
Collections.singletonList(kubernetesPod.getInternalResource()));
- LOG.debug("Start to create pod with metadata {}, spec {}",
- kubernetesPod.getInternalResource().getMetadata(),
- kubernetesPod.getInternalResource().getSpec());
+ LOG.debug("Start to create pod with metadata {}, spec
{}",
+
kubernetesPod.getInternalResource().getMetadata(),
+ kubernetesPod.getInternalResource().getSpec());
- this.internalClient
- .pods()
- .inNamespace(this.nameSpace)
- .create(kubernetesPod.getInternalResource());
+ this.internalClient
+ .pods()
+ .inNamespace(this.nameSpace)
+ .create(kubernetesPod.getInternalResource());
+ }, executorWrapper.getExecutor());
}
@Override
public void stopPod(String podName) {
- this.internalClient.pods().withName(podName).delete();
+ CompletableFuture.runAsync(
+ () ->
this.internalClient.pods().withName(podName).delete(),
+ executorWrapper.getExecutor());
}
@Override
- @Nullable
- public Endpoint getRestEndpoint(String clusterId) {
- int restPort = this.flinkConfig.getInteger(RestOptions.PORT);
+ public CompletableFuture<Optional<Endpoint>> getRestEndpoint(String
clusterId) {
+ final int restPort =
this.flinkConfig.getInteger(RestOptions.PORT);
final KubernetesConfigOptions.ServiceExposedType
serviceExposedType =
flinkConfig.get(KubernetesConfigOptions.REST_SERVICE_EXPOSED_TYPE);
// Return the service.namespace directly when use ClusterIP.
if (serviceExposedType ==
KubernetesConfigOptions.ServiceExposedType.ClusterIP) {
- return new
Endpoint(KubernetesUtils.getInternalServiceName(clusterId) + "." + nameSpace,
restPort);
+ return CompletableFuture.completedFuture(
+ Optional.of(new
Endpoint(KubernetesUtils.getInternalServiceName(clusterId) + "." + nameSpace,
restPort)));
}
- KubernetesService restService = getRestService(clusterId);
- if (restService == null) {
- return null;
- }
- Service service = restService.getInternalResource();
-
- String address = null;
-
- if (service.getStatus() != null &&
(service.getStatus().getLoadBalancer() != null ||
- service.getStatus().getLoadBalancer().getIngress() !=
null)) {
- if
(service.getStatus().getLoadBalancer().getIngress().size() > 0) {
- address =
service.getStatus().getLoadBalancer().getIngress().get(0).getIp();
- if (address == null || address.isEmpty()) {
- address =
service.getStatus().getLoadBalancer().getIngress().get(0).getHostname();
+ return getRestService(clusterId).thenApply(restService -> {
+ if (!restService.isPresent()) {
+ return Optional.empty();
+ }
+ Service service =
restService.get().getInternalResource();
+
+ String address = null;
+ int endpointPort = restPort;
+
+ if (service.getStatus() != null &&
(service.getStatus().getLoadBalancer() != null ||
+
service.getStatus().getLoadBalancer().getIngress() != null)) {
+ if
(service.getStatus().getLoadBalancer().getIngress().size() > 0) {
+ address =
service.getStatus().getLoadBalancer().getIngress().get(0).getIp();
+ if (address == null ||
address.isEmpty()) {
+ address =
service.getStatus().getLoadBalancer().getIngress().get(0).getHostname();
+ }
+ } else {
+ address =
this.internalClient.getMasterUrl().getHost();
+ endpointPort =
getServiceNodePort(service, RestOptions.PORT);
}
Review comment:
This could be also `getLoadBalancerRestEndpoint`
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