Comment 3 for bug 1925697

There is a second way the vim alarm thread can stall. Updated that review to be partial-fix. Will investigate the second case, which consistently shows this log pattern

2021-04-22T00:57:15.274 controller-0 VIM_Thread[1722206] INFO vim.py.172 Started
2021-04-22T00:57:16.669 controller-0 VIM_Thread[1722206] INFO _dor_module.py.137 DOR completed.
2021-04-22T00:57:35.887 controller-0 VIM_Thread[1722206] INFO _task_worker_pool.py.73 Timeout worker Identity-Worker-0
2021-04-22T00:57:36.895 controller-0 VIM_Thread[1722206] ERROR _task.py.200 Task(get_tenants) work (get_token) timed out, id=3.
2021-04-22T00:57:36.896 controller-0 VIM_Thread[1722206] ERROR _vim_nfvi_audits.py.318 Audit-Tenants callback, not completed, responses={'completed': False, 'reason': ''}.
2021-04-22T00:57:45.431 controller-0 VIM_Thread[1722206] INFO _sw_patch.py.196 Audit alarms, timer_id=6.
2021-04-22T00:57:47.639 controller-0 VIM_Thread[1722206] INFO _sw_patch.py.205 Audit software patch hosts, timer_id=6.
2021-04-22T00:58:15.114 controller-0 VIM_Thread[1722206] ERROR _thread.py.100 Thread Event-Log stalled, progress_marker=0, elapsed_secs=0.
2021-04-22T00:58:15.115 controller-0 VIM_Thread[1722206] ERROR _thread.py.100 Thread Alarm stalled, progress_marker=0, elapsed_secs=0.