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Posted to issues@mesos.apache.org by "Evelyn Liu (JIRA)" <ji...@apache.org> on 2018/06/22 23:57:00 UTC

[jira] [Created] (MESOS-9022) Race condition in task updates could cause missing event in streaming

Evelyn Liu created MESOS-9022:
---------------------------------

             Summary: Race condition in task updates could cause missing event in streaming
                 Key: MESOS-9022
                 URL: https://issues.apache.org/jira/browse/MESOS-9022
             Project: Mesos
          Issue Type: Bug
    Affects Versions: 1.6.0
            Reporter: Evelyn Liu


Master sends update event of {{TASK_STARTING}} when task's latest state is already {{TASK_FAILED}}. Then when it handles the update of {{TASK_FAILED}}, {{sendSubscribersUpdate}} is set to {{false}} because of [this|https://github.com/apache/mesos/blob/1.6.x/src/master/master.cpp#L10805]. The subscriber would not receive update event of {{TASK_FAILED}}.

This happened when a task failed very fast. Is there a race condition while handling task updates?

{{*master log:*}}
{code:java}
I0622 13:08:29.189771 84079 master.cpp:8345] Status update TASK_STARTING (Status UUID: eb091093-d303-4e82-b69f-e2ba1011ba76) for task f839055c-7a40-4e6c-9f53-22030f388c8c of framework 4591ea8b-4adb-4acf-bb29-b70817663c4e-0000 from agent d2f1c7c2-668d-46e5-829b-ce614cca79ae-S1587
 I0622 13:08:29.189801 84079 master.cpp:8402] Forwarding status update TASK_STARTING (Status UUID: eb091093-d303-4e82-b69f-e2ba1011ba76) for task f839055c-7a40-4e6c-9f53-22030f388c8c of framework 4591ea8b-4adb-4acf-bb29-b70817663c4e-0000
 I0622 13:08:29.190004 84079 master.cpp:10843] Updating the state of task f839055c-7a40-4e6c-9f53-22030f388c8c of framework 4591ea8b-4adb-4acf-bb29-b70817663c4e-0000 (latest state: TASK_STARTING, status update state: TASK_STARTING)
 I0622 13:08:29.603857 84079 master.cpp:6195] Processing ACKNOWLEDGE call for status eb091093-d303-4e82-b69f-e2ba1011ba76 for task f839055c-7a40-4e6c-9f53-22030f388c8c of framework 4591ea8b-4adb-4acf-bb29-b70817663c4e-0000 (Aurora) on agent d2f1c7c2-668d-46e5-829b-ce614cca79ae-S1587
 I0622 13:08:29.615643 84079 master.cpp:8345] Status update TASK_STARTING (Status UUID: eb091093-d303-4e82-b69f-e2ba1011ba76) for task f839055c-7a40-4e6c-9f53-22030f388c8c of framework 4591ea8b-4adb-4acf-bb29-b70817663c4e-0000 from agent d2f1c7c2-668d-46e5-829b-ce614cca79ae-S1587
 I0622 13:08:29.615669 84079 master.cpp:8402] Forwarding status update TASK_STARTING (Status UUID: eb091093-d303-4e82-b69f-e2ba1011ba76) for task f839055c-7a40-4e6c-9f53-22030f388c8c of framework 4591ea8b-4adb-4acf-bb29-b70817663c4e-0000
 I0622 13:08:29.615783 84079 master.cpp:10843] Updating the state of task f839055c-7a40-4e6c-9f53-22030f388c8c of framework 4591ea8b-4adb-4acf-bb29-b70817663c4e-0000 (latest state: TASK_FAILED, status update state: TASK_STARTING)
 I0622 13:08:29.620837 84079 master.cpp:8345] Status update TASK_FAILED (Status UUID: ac34f1e9-eaa4-4765-82ac-7398c2e6c835) for task f839055c-7a40-4e6c-9f53-22030f388c8c of framework 4591ea8b-4adb-4acf-bb29-b70817663c4e-0000 from agent d2f1c7c2-668d-46e5-829b-ce614cca79ae-S1587
 I0622 13:08:29.620853 84079 master.cpp:8402] Forwarding status update TASK_FAILED (Status UUID: ac34f1e9-eaa4-4765-82ac-7398c2e6c835) for task f839055c-7a40-4e6c-9f53-22030f388c8c of framework 4591ea8b-4adb-4acf-bb29-b70817663c4e-0000
 I0622 13:08:29.620923 84079 master.cpp:10843] Updating the state of task f839055c-7a40-4e6c-9f53-22030f388c8c of framework 4591ea8b-4adb-4acf-bb29-b70817663c4e-0000 (latest state: TASK_FAILED, status update state: TASK_FAILED)
 I0622 13:08:29.630455 84079 master.cpp:6195] Processing ACKNOWLEDGE call for status eb091093-d303-4e82-b69f-e2ba1011ba76 for task f839055c-7a40-4e6c-9f53-22030f388c8c of framework 4591ea8b-4adb-4acf-bb29-b70817663c4e-0000 (Aurora) on agent d2f1c7c2-668d-46e5-829b-ce614cca79ae-S1587
 I0622 13:08:29.673051 84095 master.cpp:6195] Processing ACKNOWLEDGE call for status ac34f1e9-eaa4-4765-82ac-7398c2e6c835 for task f839055c-7a40-4e6c-9f53-22030f388c8c of framework 4591ea8b-4adb-4acf-bb29-b70817663c4e-0000 (Aurora) on agent d2f1c7c2-668d-46e5-829b-ce614cca79ae-S1587{code}
 



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