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  1. Aurora
  2. AURORA-204

unavailable username causes hung executor

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Details

    • Bug
    • Status: Resolved
    • Critical
    • Resolution: Fixed
    • None
    • 0.5.0
    • Executor
    • None

    Description

      Reported by vinodkone

      looks like a bunch of tasks for job "balexandrescu/devel/skyfall" are stuck in STARTING.
      digging into one of the instances, it seems the user doesn't exist anymore. the strange thing is that the executor never exited/aborted.

      I0209 01:05:07.244604 38799 slave.cpp:1757] Handling status update TASK_STARTING (UUID: 735bf1b2-64b6-4cda-a8f0-826820e82480) for task 1391907903048-balexandrescu-devel-skyfall-0-f1771e87-10a4-409a-8855-db29ffe4bc22 of framework 201108030032-0000000011-0000 from executor(1)@10.35.5.131:46234I0209 01:05:07.245381 38799 status_update_manager.cpp:314] Received status update TASK_STARTING (UUID: 735bf1b2-64b6-4cda-a8f0-826820e82480) for task 1391907903048-balexandrescu-devel-skyfall-0-f1771e87-10a4-409a-8855-db29ffe4bc22 of framework 201108030032-0000000011-0000
      I0209 01:05:07.246099 38799 status_update_manager.hpp:342] Checkpointing UPDATE for status update TASK_STARTING (UUID: 735bf1b2-64b6-4cda-a8f0-826820e82480) for task 1391907903048-balexandrescu-devel-skyfall-0-f1771e87-10a4-409a-8855-db29ffe4bc22 of framework 201108030032-0000000011-0000
      I0209 01:05:07.733875 38799 status_update_manager.cpp:367] Forwarding status update TASK_STARTING (UUID: 735bf1b2-64b6-4cda-a8f0-826820e82480) for task 1391907903048-balexandrescu-devel-skyfall-0-f1771e87-10a4-409a-8855-db29ffe4bc22 of framework 201108030032-0000000011-0000 to master@10.35.9.132:5050
      I0209 01:05:07.735437 38799 slave.cpp:1882] Sending acknowledgement for status update TASK_STARTING (UUID: 735bf1b2-64b6-4cda-a8f0-826820e82480) for task 1391907903048-balexandrescu-devel-skyfall-0-f1771e87-10a4-409a-8855-db29ffe4bc22 of framework 201108030032-0000000011-0000 to executor(1)@10.35.5.131:46234
      I0209 01:05:07.743939 38799 status_update_manager.cpp:392] Received status update acknowledgement (UUID: 735bf1b2-64b6-4cda-a8f0-826820e82480) for task 1391907903048-balexandrescu-devel-skyfall-0-f1771e87-10a4-409a-8855-db29ffe4bc22 of framework 201108030032-0000000011-0000
      I0209 01:05:07.795338 38799 status_update_manager.hpp:342] Checkpointing ACK for status update TASK_STARTING (UUID: 735bf1b2-64b6-4cda-a8f0-826820e82480) for task 1391907903048-balexandrescu-devel-skyfall-0-f1771e87-10a4-409a-8855-db29ffe4bc22 of framework 201108030032-0000000011-0000
      I0209 01:10:00.185257 38784 slave.cpp:1005] Asked to kill task 1391907903048-balexandrescu-devel-skyfall-0-f1771e87-10a4-409a-8855-db29ffe4bc22 of framework 201108030032-0000000011-0000
      
      $ ps aux | grep 44286
      vinod 4511 0.0 0.0 61248 780 pts/0 S+ 07:55 0:00 grep 44286
      root 44286 0.0 0.0 544024 35716 ? Ssl 01:05 0:20 python2.6 ./thermos_executor
      
      $ cat /var/lib/mesos/slaves/201309131923-1829643018-5050-22101-3/frameworks/201108030032-0000000011-0000/executors/thermos-1391907903048-balexandrescu-devel-skyfall-0-f1771e87-10a4-409a-8855-db29ffe4bc22/runs/a149e178-ff35-4544-b2ef-620e2ee3f586/stderr
      twitter.common.app debug: Initializing: twitter.common.log (Logging subsystem.)
      Writing log files to disk in executor_logs
      twitter.common.app debug: Initializing: twitter.common_internal.app.modules.chickadee_handler (Chickadee exception handler.)
      Traceback (most recent call last):
      File "/var/lib/mesos/slaves/201309131923-1829643018-5050-22101-3/frameworks/201108030032-0000000011-0000/executors/thermos-1391907903048-balexandrescu-devel-skyfall-0-f1771e87-10a4-409a-8855-db29ffe4bc22/runs/a149e178-ff35-4544-b2ef-620e2ee3f586/thermos_executor/twitter/common/exceptions/_init_.py", line 126, in _excepting_run
      File "/var/lib/mesos/slaves/201309131923-1829643018-5050-22101-3/frameworks/201108030032-0000000011-0000/executors/thermos-1391907903048-balexandrescu-devel-skyfall-0-f1771e87-10a4-409a-8855-db29ffe4bc22/runs/a149e178-ff35-4544-b2ef-620e2ee3f586/thermos_executor/twitter/common/concurrent/deferred.py", line 43, in run
      File "/root/.pex/install/apache.aurora.executor-0.5.0_DEV1391543893-py2.6.egg.56d773b76d0356d74134a338f0c58eb205d540ba/apache.aurora.executor-0.5.0_DEV1391543893-py2.6.egg/apache/aurora/executor/thermos_executor.py", line 280, in <lambda>
      defer(lambda: self._run(driver, assigned_task, mesos_task))
      File "/root/.pex/install/apache.aurora.executor-0.5.0_DEV1391543893-py2.6.egg.56d773b76d0356d74134a338f0c58eb205d540ba/apache.aurora.executor-0.5.0_DEV1391543893-py2.6.egg/apache/aurora/executor/thermos_executor.py", line 113, in _run
      if not self._initialize_sandbox(driver, assigned_task):
      File "/root/.pex/install/apache.aurora.executor-0.5.0_DEV1391543893-py2.6.egg.56d773b76d0356d74134a338f0c58eb205d540ba/apache.aurora.executor-0.5.0_DEV1391543893-py2.6.egg/apache/aurora/executor/thermos_executor.py", line 143, in _initialize_sandbox
      daemon=True, propagate=True)
      File "/var/lib/mesos/slaves/201309131923-1829643018-5050-22101-3/frameworks/201108030032-0000000011-0000/executors/thermos-1391907903048-balexandrescu-devel-skyfall-0-f1771e87-10a4-409a-8855-db29ffe4bc22/runs/a149e178-ff35-4544-b2ef-620e2ee3f586/thermos_executor/twitter/common/concurrent/deadline.py", line 68, in deadline
      KeyError: 'getpwnam(): name not found: balexandrescu'
      ERROR] Asked to kill task with incomplete sandbox - aborting runner start
      

      N.B. wickman This is caused by an untrapped KeyError by getpwnam. Should fix the original issue, but also probably wrap some of these critical operations in a try/finally.

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            wickman Brian Wickman
            wickman Brian Wickman
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              Updated:
              Resolved: