Improvements for task processing
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				@ -89,7 +89,7 @@ public class JobManagerTest extends AbstractControllerTest {
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    @Test
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    public void testSubmitJob_allTasksSuccessful() {
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        int tasksCount = 5;
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        int tasksCount = 7;
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        JobId jobId = submitJob(DummyJobConfiguration.builder()
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                .successfulTasksCount(tasksCount)
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                .taskProcessingTimeMs(1000)
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@ -154,10 +154,10 @@ public class JobManagerTest extends AbstractControllerTest {
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    @Test
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    public void testCancelJob_whileRunning() throws Exception {
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        int tasksCount = 100;
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        int tasksCount = 200;
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        JobId jobId = submitJob(DummyJobConfiguration.builder()
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                .successfulTasksCount(tasksCount)
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                .taskProcessingTimeMs(100)
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                .taskProcessingTimeMs(50)
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                .build()).getId();
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        Thread.sleep(500);
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@ -15,6 +15,7 @@
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 */
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package org.thingsboard.server.common.data.job.task;
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import lombok.Builder;
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import lombok.Data;
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import lombok.EqualsAndHashCode;
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import lombok.NoArgsConstructor;
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@ -25,22 +26,25 @@ import org.thingsboard.server.common.data.job.JobType;
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@Data
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@EqualsAndHashCode(callSuper = true)
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@NoArgsConstructor
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@SuperBuilder
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@ToString(callSuper = true)
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public class DummyTaskResult extends TaskResult {
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    private DummyTaskFailure failure;
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    @Builder
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    private DummyTaskResult(boolean success, boolean discarded, DummyTaskFailure failure) {
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        super(success, discarded);
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        this.failure = failure;
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    }
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    public static DummyTaskResult success(DummyTask task) {
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        return DummyTaskResult.builder()
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                .key(task.getKey())
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                .success(true)
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                .build();
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    }
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    public static DummyTaskResult failed(DummyTask task, Throwable error) {
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        return DummyTaskResult.builder()
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                .key(task.getKey())
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                .failure(DummyTaskFailure.builder()
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                        .error(error.getMessage())
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                        .number(task.getNumber())
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@ -51,7 +55,6 @@ public class DummyTaskResult extends TaskResult {
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    public static DummyTaskResult discarded(DummyTask task) {
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        return DummyTaskResult.builder()
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                .key(task.getKey())
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                .discarded(true)
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                .build();
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    }
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@ -20,16 +20,12 @@ import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
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import com.fasterxml.jackson.annotation.JsonSubTypes;
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import com.fasterxml.jackson.annotation.JsonSubTypes.Type;
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import com.fasterxml.jackson.annotation.JsonTypeInfo;
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import lombok.AllArgsConstructor;
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import lombok.Data;
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import lombok.NoArgsConstructor;
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import lombok.experimental.SuperBuilder;
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import org.thingsboard.server.common.data.job.JobType;
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@Data
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@AllArgsConstructor
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@NoArgsConstructor
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@SuperBuilder
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@JsonIgnoreProperties(ignoreUnknown = true)
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@JsonTypeInfo(use = JsonTypeInfo.Id.NAME, property = "jobType")
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@JsonSubTypes({
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@ -40,6 +36,12 @@ public abstract class TaskResult {
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    private String key;
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    private boolean success;
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    private boolean discarded;
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    private long finishTs;
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    protected TaskResult(boolean success, boolean discarded) {
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        this.success = success;
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        this.discarded = discarded;
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    }
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    @JsonIgnore
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    public abstract JobType getJobType();
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@ -232,6 +232,8 @@ public abstract class TaskProcessor<T extends Task<R>, R extends TaskResult> {
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    }
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    private void reportTaskResult(T task, R result) {
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        result.setKey(task.getKey());
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        result.setFinishTs(System.currentTimeMillis());
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        statsService.reportTaskResult(task.getTenantId(), task.getJobId(), result);
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    }
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@ -69,7 +69,6 @@ public class DefaultJobService extends AbstractEntityService implements JobServi
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            job.setStatus(QUEUED);
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        } else {
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            job.setStatus(PENDING);
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            job.getResult().setStartTs(System.currentTimeMillis());
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        }
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        return saveJob(tenantId, job, true, null);
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    }
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@ -125,6 +124,7 @@ public class DefaultJobService extends AbstractEntityService implements JobServi
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        }
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        boolean publishEvent = false;
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        long lastFinishTs = 0;
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        for (TaskResult taskResult : jobStats.getTaskResults()) {
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            if (!taskResult.getKey().equals(job.getConfiguration().getTasksKey())) {
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                log.debug("Ignoring task result {} with outdated key {}", taskResult, job.getConfiguration().getTasksKey());
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@ -140,6 +140,9 @@ public class DefaultJobService extends AbstractEntityService implements JobServi
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                    publishEvent = true;
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                }
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            }
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            if (taskResult.getFinishTs() > lastFinishTs) {
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                lastFinishTs = taskResult.getFinishTs();
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            }
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        }
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        if (job.getStatus() == RUNNING) {
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@ -153,7 +156,7 @@ public class DefaultJobService extends AbstractEntityService implements JobServi
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                    job.setStatus(COMPLETED);
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                    publishEvent = true;
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                }
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                result.setFinishTs(System.currentTimeMillis());
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                result.setFinishTs(lastFinishTs);
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                job.getConfiguration().setToReprocess(null);
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            }
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        }
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@ -166,6 +169,9 @@ public class DefaultJobService extends AbstractEntityService implements JobServi
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        if (!Job.SUPPORTED_ENTITY_TYPES.contains(job.getEntityId().getEntityType())) {
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            throw new IllegalArgumentException("Unsupported entity type " + job.getEntityId().getEntityType());
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        }
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        if (job.getStatus() == PENDING) {
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            job.getResult().setStartTs(System.currentTimeMillis());
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        }
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        job = jobDao.save(tenantId, job);
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        if (publishEvent) {
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