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[Bug-11101] fix task failover NPE (#11168)

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caishunfeng 2022-07-27 19:21:21 +08:00 committed by GitHub
parent 181cd2ff79
commit 6c7e00c4aa
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1 changed files with 16 additions and 8 deletions
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24
dolphinscheduler-master/src/main/java/org/apache/dolphinscheduler/server/master/service/MasterFailoverService.java
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@ -40,6 +40,7 @@ import org.apache.dolphinscheduler.server.master.runner.task.TaskProcessorFactor
import org.apache.dolphinscheduler.server.utils.ProcessUtils;
import org.apache.dolphinscheduler.service.process.ProcessService;
import org.apache.dolphinscheduler.service.registry.RegistryClient;
import org.apache.dolphinscheduler.spi.utils.StringUtils;
import org.apache.commons.collections4.CollectionUtils;
import org.apache.commons.lang3.time.StopWatch;
@ -232,14 +233,7 @@ public class MasterFailoverService {
// kill worker task, When the master failover and worker failover happened in the same time,
// the task may not be failover if we don't set NEED_FAULT_TOLERANCE.
// This can be improved if we can load all task when cache a workflowInstance in memory
try {
TaskKillRequestCommand killCommand = new TaskKillRequestCommand(taskInstance.getId());
Host workerHost = Host.of(taskInstance.getHost());
nettyExecutorManager.doExecute(workerHost, killCommand.convert2Command());
LOGGER.info("Failover task success, has killed the task in worker: {}", taskInstance.getHost());
} catch (ExecuteException e) {
LOGGER.error("Kill task failed", e);
}
sendKillCommandToWorker(taskInstance);
} else {
LOGGER.info("The failover taskInstance is a master task");
}
@ -249,6 +243,20 @@ public class MasterFailoverService {
processService.saveTaskInstance(taskInstance);
}
private void sendKillCommandToWorker(@NonNull TaskInstance taskInstance) {
if (StringUtils.isEmpty(taskInstance.getHost())) {
return;
}
try {
TaskKillRequestCommand killCommand = new TaskKillRequestCommand(taskInstance.getId());
Host workerHost = Host.of(taskInstance.getHost());
nettyExecutorManager.doExecute(workerHost, killCommand.convert2Command());
LOGGER.info("Failover task success, has killed the task in worker: {}", taskInstance.getHost());
} catch (ExecuteException e) {
LOGGER.error("Kill task failed", e);
}
}
private boolean checkTaskInstanceNeedFailover(@NonNull TaskInstance taskInstance) {
if (taskInstance.getState() != null && taskInstance.getState().typeIsFinished()) {
// The task is already finished, so we don't need to failover this task instance