arjun4084346 commented on code in PR #3893:
URL: https://github.com/apache/gobblin/pull/3893#discussion_r1523959010
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gobblin-service/src/main/java/org/apache/gobblin/service/modules/orchestration/proc/LaunchDagProc.java:
##########
@@ -18,58 +18,165 @@
package org.apache.gobblin.service.modules.orchestration.proc;
import java.io.IOException;
+import java.net.URI;
+import java.net.URISyntaxException;
+import java.util.Collections;
+import java.util.Map;
import java.util.Optional;
+import java.util.Set;
+import java.util.concurrent.Future;
import java.util.concurrent.atomic.AtomicLong;
+import com.google.common.collect.Maps;
+
+import lombok.RequiredArgsConstructor;
import lombok.extern.slf4j.Slf4j;
-import org.apache.gobblin.annotation.Alpha;
-import org.apache.gobblin.metrics.ContextAwareGauge;
+import org.apache.gobblin.configuration.ConfigurationKeys;
import org.apache.gobblin.metrics.ServiceMetricNames;
import org.apache.gobblin.metrics.event.EventSubmitter;
+import org.apache.gobblin.metrics.event.TimingEvent;
+import org.apache.gobblin.runtime.api.DagActionStore;
+import org.apache.gobblin.runtime.api.FlowSpec;
+import org.apache.gobblin.runtime.api.JobSpec;
+import org.apache.gobblin.runtime.api.Spec;
+import org.apache.gobblin.runtime.api.SpecExecutor;
+import org.apache.gobblin.runtime.api.SpecNotFoundException;
+import org.apache.gobblin.runtime.api.SpecProducer;
+import org.apache.gobblin.service.ExecutionStatus;
import org.apache.gobblin.service.modules.flowgraph.Dag;
import
org.apache.gobblin.service.modules.orchestration.DagManagementStateStore;
+import org.apache.gobblin.service.modules.orchestration.DagManager;
+import org.apache.gobblin.service.modules.orchestration.DagManagerUtils;
+import org.apache.gobblin.service.modules.orchestration.TimingEventUtils;
import org.apache.gobblin.service.modules.orchestration.task.LaunchDagTask;
import org.apache.gobblin.service.modules.spec.JobExecutionPlan;
+import
org.apache.gobblin.service.modules.utils.FlowCompilationValidationHelper;
/**
- * An implementation for {@link LaunchDagTask}
+ * An implementation for {@link DagProc} that launches a new job.
*/
@Slf4j
-@Alpha
+@RequiredArgsConstructor
public class LaunchDagProc extends DagProc<Optional<Dag<JobExecutionPlan>>,
Optional<Dag<JobExecutionPlan>>> {
private final LaunchDagTask launchDagTask;
- private final AtomicLong orchestrationDelayCounter;
-
- public LaunchDagProc(LaunchDagTask launchDagTask) {
- this.launchDagTask = launchDagTask;
- this.orchestrationDelayCounter = new AtomicLong(0);
- ContextAwareGauge<Long> orchestrationDelayMetric =
metricContext.newContextAwareGauge
- (ServiceMetricNames.FLOW_ORCHESTRATION_DELAY,
orchestrationDelayCounter::get);
- metricContext.register(orchestrationDelayMetric);
+ private final FlowCompilationValidationHelper
flowCompilationValidationHelper;
+ private static final AtomicLong orchestrationDelayCounter = new
AtomicLong(0);
+ static {
+ metricContext.register(
+
metricContext.newContextAwareGauge(ServiceMetricNames.FLOW_ORCHESTRATION_DELAY,
orchestrationDelayCounter::get));
+ }
+
+ @Override
+ protected DagManager.DagId getDagId() {
+ return this.launchDagTask.getDagId();
}
@Override
protected Optional<Dag<JobExecutionPlan>> initialize(DagManagementStateStore
dagManagementStateStore)
throws IOException {
- throw new UnsupportedOperationException("Not yet implemented");
+ try {
+ DagActionStore.DagAction dagAction = this.launchDagTask.getDagAction();
+ URI flowUri = FlowSpec.Utils.createFlowSpecUri(dagAction.getFlowId());
+ FlowSpec flowSpec = dagManagementStateStore.getFlowSpec(flowUri);
+ flowSpec.addProperty(ConfigurationKeys.FLOW_EXECUTION_ID_KEY,
dagAction.getFlowExecutionId());
+ return
this.flowCompilationValidationHelper.createExecutionPlanIfValid(flowSpec).toJavaUtil();
+ } catch (URISyntaxException | SpecNotFoundException | InterruptedException
e) {
+ throw new RuntimeException(e);
+ }
}
@Override
protected Optional<Dag<JobExecutionPlan>> act(DagManagementStateStore
dagManagementStateStore, Optional<Dag<JobExecutionPlan>> dag)
throws IOException {
- throw new UnsupportedOperationException("Not yet implemented");
+ if (!dag.isPresent()) {
+ log.warn("Dag with id " + getDagId() + " could not be compiled.");
+ // todo - add metrics
+ return Optional.empty();
+ }
+ submitNextNodes(dagManagementStateStore, dag.get());
+ return dag;
}
- @Override
- protected void sendNotification(Optional<Dag<JobExecutionPlan>> result,
EventSubmitter eventSubmitter)
- throws IOException {
- throw new UnsupportedOperationException("Not yet implemented");
+ /**
+ * Submit next set of Dag nodes in the provided Dag.
+ */
+ private void submitNextNodes(DagManagementStateStore
dagManagementStateStore,
+ Dag<JobExecutionPlan> dag) throws IOException {
+ Set<Dag.DagNode<JobExecutionPlan>> nextNodes =
DagManagerUtils.getNext(dag);
+
+ //Submit jobs from the dag ready for execution.
+ for (Dag.DagNode<JobExecutionPlan> dagNode : nextNodes) {
+ submitJobToExecutor(dagManagementStateStore, dagNode);
+ dagManagementStateStore.addDagNodeState(dagNode, getDagId());
+ log.info("Submitted job {} for dagId {}",
DagManagerUtils.getJobName(dagNode), getDagId());
+ }
+
+ //Checkpoint the dag state, it should have an updated value of dag nodes
+ dagManagementStateStore.checkpointDag(dag);
+ }
+
+ /**
+ * Submits a {@link JobSpec} to a {@link SpecExecutor}.
+ */
+ private void submitJobToExecutor(DagManagementStateStore
dagManagementStateStore, Dag.DagNode<JobExecutionPlan> dagNode) {
Review Comment:
yes, i will consider making one proc a parent proc of other
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