How to know if a Worker has failed being triggered/executed by the queue?












0















I am appending workers in the queue as shown below. However, occasionally a worker won't be triggered. How can I know if a Worker did not get executed so that I can try to re-enqueue it? Maybe using the Operation instance returned by enqueue()? How to use it? If so, is it possible to have a hint of the reason of failure of triggering the Worker?



Note that I do not need to know if the Worker failed (return Result.FAILURE). The case I want to cover is when the Worker is not even called, which happens occasionally.



OneTimeWorkRequest sendMessageWorker = new OneTimeWorkRequest.Builder(SendMessageWorker.class)
.setInputData(data)
.setBackoffCriteria(BackoffPolicy.LINEAR, backOffDelayInMillis, TimeUnit.MILLISECONDS)
.build();

Operation operation = WorkManager.getInstance()
.beginUniqueWork(SendMessageWorker.class.getSimpleName(), ExistingWorkPolicy.APPEND, sendMessageWorker)
.enqueue();









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    0















    I am appending workers in the queue as shown below. However, occasionally a worker won't be triggered. How can I know if a Worker did not get executed so that I can try to re-enqueue it? Maybe using the Operation instance returned by enqueue()? How to use it? If so, is it possible to have a hint of the reason of failure of triggering the Worker?



    Note that I do not need to know if the Worker failed (return Result.FAILURE). The case I want to cover is when the Worker is not even called, which happens occasionally.



    OneTimeWorkRequest sendMessageWorker = new OneTimeWorkRequest.Builder(SendMessageWorker.class)
    .setInputData(data)
    .setBackoffCriteria(BackoffPolicy.LINEAR, backOffDelayInMillis, TimeUnit.MILLISECONDS)
    .build();

    Operation operation = WorkManager.getInstance()
    .beginUniqueWork(SendMessageWorker.class.getSimpleName(), ExistingWorkPolicy.APPEND, sendMessageWorker)
    .enqueue();









    share|improve this question



























      0












      0








      0








      I am appending workers in the queue as shown below. However, occasionally a worker won't be triggered. How can I know if a Worker did not get executed so that I can try to re-enqueue it? Maybe using the Operation instance returned by enqueue()? How to use it? If so, is it possible to have a hint of the reason of failure of triggering the Worker?



      Note that I do not need to know if the Worker failed (return Result.FAILURE). The case I want to cover is when the Worker is not even called, which happens occasionally.



      OneTimeWorkRequest sendMessageWorker = new OneTimeWorkRequest.Builder(SendMessageWorker.class)
      .setInputData(data)
      .setBackoffCriteria(BackoffPolicy.LINEAR, backOffDelayInMillis, TimeUnit.MILLISECONDS)
      .build();

      Operation operation = WorkManager.getInstance()
      .beginUniqueWork(SendMessageWorker.class.getSimpleName(), ExistingWorkPolicy.APPEND, sendMessageWorker)
      .enqueue();









      share|improve this question
















      I am appending workers in the queue as shown below. However, occasionally a worker won't be triggered. How can I know if a Worker did not get executed so that I can try to re-enqueue it? Maybe using the Operation instance returned by enqueue()? How to use it? If so, is it possible to have a hint of the reason of failure of triggering the Worker?



      Note that I do not need to know if the Worker failed (return Result.FAILURE). The case I want to cover is when the Worker is not even called, which happens occasionally.



      OneTimeWorkRequest sendMessageWorker = new OneTimeWorkRequest.Builder(SendMessageWorker.class)
      .setInputData(data)
      .setBackoffCriteria(BackoffPolicy.LINEAR, backOffDelayInMillis, TimeUnit.MILLISECONDS)
      .build();

      Operation operation = WorkManager.getInstance()
      .beginUniqueWork(SendMessageWorker.class.getSimpleName(), ExistingWorkPolicy.APPEND, sendMessageWorker)
      .enqueue();






      android android-workmanager android-architecture-workmanager






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      edited Nov 14 '18 at 21:00







      user2923322

















      asked Nov 14 '18 at 20:49









      user2923322user2923322

      13018




      13018
























          2 Answers
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          Using ExistingWorkPolicy.APPEND, you´re creating a chain of work.

          If you return Result.FAILURE in your Worker (in case of an error), all the chain of Work is cancelled. This maybe the reason why you don´t see your worker running sometimes.



          One suggestion is to add a Tag or an Id to your worker and observe the status using a Livedata and the getStatusesByTagLivedata() or getStatusesById().



          You can take a look at this talk presented at the Android Developer Summit that covers this and other example.






          share|improve this answer
























          • I am sure it is not because of Result.FAILURE, because before returning such a result, I have error logging. Also all the logic of my worker is wrapped by a try/catch and if any error occurs I log and I can always see any error. It really seems that the worker, occasionally, is just not triggered at all by the queue (about 1 time on 100 times). I will watch the talk today! Thank you for the video

            – user2923322
            Nov 15 '18 at 9:01



















          0














          You can observe the Worker and get the state of worker by observing using method getStatusByIdLiveData



          mWorkManager.getStatusByIdLiveData(yourWorkRequest.id)
          .observe(lifeCycleOwner, Observer { workStatus ->
          //here you can get the status of work
          })





          share|improve this answer

























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            2 Answers
            2






            active

            oldest

            votes








            2 Answers
            2






            active

            oldest

            votes









            active

            oldest

            votes






            active

            oldest

            votes









            0














            Using ExistingWorkPolicy.APPEND, you´re creating a chain of work.

            If you return Result.FAILURE in your Worker (in case of an error), all the chain of Work is cancelled. This maybe the reason why you don´t see your worker running sometimes.



            One suggestion is to add a Tag or an Id to your worker and observe the status using a Livedata and the getStatusesByTagLivedata() or getStatusesById().



            You can take a look at this talk presented at the Android Developer Summit that covers this and other example.






            share|improve this answer
























            • I am sure it is not because of Result.FAILURE, because before returning such a result, I have error logging. Also all the logic of my worker is wrapped by a try/catch and if any error occurs I log and I can always see any error. It really seems that the worker, occasionally, is just not triggered at all by the queue (about 1 time on 100 times). I will watch the talk today! Thank you for the video

              – user2923322
              Nov 15 '18 at 9:01
















            0














            Using ExistingWorkPolicy.APPEND, you´re creating a chain of work.

            If you return Result.FAILURE in your Worker (in case of an error), all the chain of Work is cancelled. This maybe the reason why you don´t see your worker running sometimes.



            One suggestion is to add a Tag or an Id to your worker and observe the status using a Livedata and the getStatusesByTagLivedata() or getStatusesById().



            You can take a look at this talk presented at the Android Developer Summit that covers this and other example.






            share|improve this answer
























            • I am sure it is not because of Result.FAILURE, because before returning such a result, I have error logging. Also all the logic of my worker is wrapped by a try/catch and if any error occurs I log and I can always see any error. It really seems that the worker, occasionally, is just not triggered at all by the queue (about 1 time on 100 times). I will watch the talk today! Thank you for the video

              – user2923322
              Nov 15 '18 at 9:01














            0












            0








            0







            Using ExistingWorkPolicy.APPEND, you´re creating a chain of work.

            If you return Result.FAILURE in your Worker (in case of an error), all the chain of Work is cancelled. This maybe the reason why you don´t see your worker running sometimes.



            One suggestion is to add a Tag or an Id to your worker and observe the status using a Livedata and the getStatusesByTagLivedata() or getStatusesById().



            You can take a look at this talk presented at the Android Developer Summit that covers this and other example.






            share|improve this answer













            Using ExistingWorkPolicy.APPEND, you´re creating a chain of work.

            If you return Result.FAILURE in your Worker (in case of an error), all the chain of Work is cancelled. This maybe the reason why you don´t see your worker running sometimes.



            One suggestion is to add a Tag or an Id to your worker and observe the status using a Livedata and the getStatusesByTagLivedata() or getStatusesById().



            You can take a look at this talk presented at the Android Developer Summit that covers this and other example.







            share|improve this answer












            share|improve this answer



            share|improve this answer










            answered Nov 15 '18 at 5:13









            pfmaggipfmaggi

            2,0001225




            2,0001225













            • I am sure it is not because of Result.FAILURE, because before returning such a result, I have error logging. Also all the logic of my worker is wrapped by a try/catch and if any error occurs I log and I can always see any error. It really seems that the worker, occasionally, is just not triggered at all by the queue (about 1 time on 100 times). I will watch the talk today! Thank you for the video

              – user2923322
              Nov 15 '18 at 9:01



















            • I am sure it is not because of Result.FAILURE, because before returning such a result, I have error logging. Also all the logic of my worker is wrapped by a try/catch and if any error occurs I log and I can always see any error. It really seems that the worker, occasionally, is just not triggered at all by the queue (about 1 time on 100 times). I will watch the talk today! Thank you for the video

              – user2923322
              Nov 15 '18 at 9:01

















            I am sure it is not because of Result.FAILURE, because before returning such a result, I have error logging. Also all the logic of my worker is wrapped by a try/catch and if any error occurs I log and I can always see any error. It really seems that the worker, occasionally, is just not triggered at all by the queue (about 1 time on 100 times). I will watch the talk today! Thank you for the video

            – user2923322
            Nov 15 '18 at 9:01





            I am sure it is not because of Result.FAILURE, because before returning such a result, I have error logging. Also all the logic of my worker is wrapped by a try/catch and if any error occurs I log and I can always see any error. It really seems that the worker, occasionally, is just not triggered at all by the queue (about 1 time on 100 times). I will watch the talk today! Thank you for the video

            – user2923322
            Nov 15 '18 at 9:01













            0














            You can observe the Worker and get the state of worker by observing using method getStatusByIdLiveData



            mWorkManager.getStatusByIdLiveData(yourWorkRequest.id)
            .observe(lifeCycleOwner, Observer { workStatus ->
            //here you can get the status of work
            })





            share|improve this answer






























              0














              You can observe the Worker and get the state of worker by observing using method getStatusByIdLiveData



              mWorkManager.getStatusByIdLiveData(yourWorkRequest.id)
              .observe(lifeCycleOwner, Observer { workStatus ->
              //here you can get the status of work
              })





              share|improve this answer




























                0












                0








                0







                You can observe the Worker and get the state of worker by observing using method getStatusByIdLiveData



                mWorkManager.getStatusByIdLiveData(yourWorkRequest.id)
                .observe(lifeCycleOwner, Observer { workStatus ->
                //here you can get the status of work
                })





                share|improve this answer















                You can observe the Worker and get the state of worker by observing using method getStatusByIdLiveData



                mWorkManager.getStatusByIdLiveData(yourWorkRequest.id)
                .observe(lifeCycleOwner, Observer { workStatus ->
                //here you can get the status of work
                })






                share|improve this answer














                share|improve this answer



                share|improve this answer








                edited Nov 16 '18 at 4:31

























                answered Nov 16 '18 at 4:03









                VishalVishal

                406210




                406210






























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