Retry Task from dead letter job

adityav · April 10, 2023, 11:42am

I have integrated flowable engine with spring boot application , want to re-trigger task manually after it fails after certain retry attempts and moves to dead letter job .
I re-trigger the task using runtimeService.trigger(executionId);
But it executes the next task in the sequence flow and skips the actual failed task.
Not sure how to make the failed task work again

gdharley · April 10, 2023, 5:27pm

Calling “trigger” on a given execution will do exactly what you are experiencing.
You should be using either the Management Service or JobService to locate the specific failed job and restore it.
Check out the following test:

github.com

flowable/flowable-engine/blob/6eee9b4a9ce4ed6ea027d91d7db9afa214f95344/modules/flowable-engine/src/test/java/org/flowable/engine/test/api/mgmt/JobQueryTest.java#L481


      
              managementService.setTimerJobRetries(job.getId(), 0);
              managementService.moveJobToDeadLetterJob(job.getId());
          
          
    // Re-running the query should give only 3 jobs now, since one job has retries=0
              verifyQueryResults(query, 1);
              verifyQueryResults(timerQuery, 2);
          }
          
          
@Test
          public void testQueryByExecutable() {
              processEngineConfiguration.getClock()
                      .setCurrentTime(new Date(timerThreeFireTime.getTime() + ONE_SECOND)); // all obs should be executable at t3 + 1hour.1second
              JobQuery query = managementService.createJobQuery();
              verifyQueryResults(query, 1);
          
          
    TimerJobQuery timerQuery = managementService.createTimerJobQuery().executable();
              verifyQueryResults(timerQuery, 3);
          
          
    // Setting retries of one job to 0, makes it non-executable
              final Job job = managementService.createTimerJobQuery().processInstanceId(processInstanceIdOne).singleResult();
              managementService.setTimerJobRetries(job.getId(), 0);

Hope this helps,
Greg

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Retry Task from dead letter job

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