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[Bug 2098914] [NEW] nova api process blocked

To: yahoo-eng-team@xxxxxxxxxxxxxxxxxxx
From: "zhong.xie" <2098914@xxxxxxxxxxxxxxxxxx>
Date: Thu, 20 Feb 2025 02:40:47 -0000
Reply-to: Bug 2098914 <2098914@xxxxxxxxxxxxxxxxxx>
Sender: noreply@xxxxxxxxxxxxx
Public bug reported:

nova-api + httpd in progress mod threads=1
in nova-api-error.log

./nova-api-error.log-2024-01-10 19:20:24.501731 Traceback (most recent call last):
./nova-api-error.log-2024-01-10 19:20:24.501787   File "/var/lib/kolla/venv/lib/python3.6/site-packages/eventlet/hubs/hub.py", line 476, in fire_timers
./nova-api-error.log-2024-01-10 19:20:24.501794     timer()
./nova-api-error.log-2024-01-10 19:20:24.501800   File "/var/lib/kolla/venv/lib/python3.6/site-packages/eventlet/hubs/timer.py", line 59, in __call__
./nova-api-error.log-2024-01-10 19:20:24.501803     cb(*args, **kw)
./nova-api-error.log-2024-01-10 19:20:24.501809   File "/var/lib/kolla/venv/lib/python3.6/site-packages/eventlet/semaphore.py", line 147, in _do_acquire
./nova-api-error.log-2024-01-10 19:20:24.501812     waiter.switch()
./nova-api-error.log:2024-01-10 19:20:24.501826 greenlet.error: cannot switch to a different thread
./nova-api-error.log-2024-01-10 19:20:28.572977 Traceback (most recent call last):
./nova-api-error.log-2024-01-10 19:20:28.573039   File "/var/lib/kolla/venv/lib/python3.6/site-packages/eventlet/hubs/hub.py", line 476, in fire_timers
./nova-api-error.log-2024-01-10 19:20:28.573062     timer()
./nova-api-error.log-2024-01-10 19:20:28.573069   File "/var/lib/kolla/venv/lib/python3.6/site-packages/eventlet/hubs/timer.py", line 59, in __call__
./nova-api-error.log-2024-01-10 19:20:28.573073     cb(*args, **kw)
./nova-api-error.log-2024-01-10 19:20:28.573077   File "/var/lib/kolla/venv/lib/python3.6/site-packages/eventlet/semaphore.py", line 147, in _do_acquire
./nova-api-error.log-2024-01-10 19:20:28.573081     waiter.switch()
./nova-api-error.log:2024-01-10 19:20:28.573094 greenlet.error: cannot switch to a different thread
./nova-api-error.log-2024-01-10 19:20:30.610414 Traceback (most recent call last):
./nova-api-error.log-2024-01-10 19:20:30.610483   File "/var/lib/kolla/venv/lib/python3.6/site-packages/eventlet/hubs/hub.py", line 476, in fire_timers
./nova-api-error.log-2024-01-10 19:20:30.610490     timer()
./nova-api-error.log-2024-01-10 19:20:30.610497   File "/var/lib/kolla/venv/lib/python3.6/site-packages/eventlet/hubs/timer.py", line 59, in __call__
./nova-api-error.log-2024-01-10 19:20:30.610500     cb(*args, **kw)
./nova-api-error.log-2024-01-10 19:20:30.610505   File "/var/lib/kolla/venv/lib/python3.6/site-packages/eventlet/semaphore.py", line 147, in _do_acquire
./nova-api-error.log-2024-01-10 19:20:30.610510     waiter.switch()
./nova-api-error.log:2024-01-10 19:20:30.610529 greenlet.error: cannot switch to a different thread
./nova-api-error.log-2024-01-10 19:20:31.141706 Traceback (most recent call last):
./nova-api-error.log-2024-01-10 19:20:31.141788   File "/var/lib/kolla/venv/lib/python3.6/site-packages/eventlet/hubs/hub.py", line 476, in fire_timers
./nova-api-error.log-2024-01-10 19:20:31.141794     timer()
./nova-api-error.log-2024-01-10 19:20:31.141801   File "/var/lib/kolla/venv/lib/python3.6/site-packages/eventlet/hubs/timer.py", line 59, in __call__
./nova-api-error.log-2024-01-10 19:20:31.141804     cb(*args, **kw)
./nova-api-error.log-2024-01-10 19:20:31.141809   File "/var/lib/kolla/venv/lib/python3.6/site-packages/eventlet/semaphore.py", line 147, in _do_acquire
./nova-api-error.log-2024-01-10 19:20:31.141814     waiter.switch()
./nova-api-error.log:2024-01-10 19:20:31.141837 greenlet.error: cannot switch to a different thread

all nova-api process blocked

** Affects: nova
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/2098914

Title:
  nova api process blocked

Status in OpenStack Compute (nova):
  New

Bug description:
  nova-api + httpd in progress mod threads=1
  in nova-api-error.log

  ./nova-api-error.log-2024-01-10 19:20:24.501731 Traceback (most recent call last):
  ./nova-api-error.log-2024-01-10 19:20:24.501787   File "/var/lib/kolla/venv/lib/python3.6/site-packages/eventlet/hubs/hub.py", line 476, in fire_timers
  ./nova-api-error.log-2024-01-10 19:20:24.501794     timer()
  ./nova-api-error.log-2024-01-10 19:20:24.501800   File "/var/lib/kolla/venv/lib/python3.6/site-packages/eventlet/hubs/timer.py", line 59, in __call__
  ./nova-api-error.log-2024-01-10 19:20:24.501803     cb(*args, **kw)
  ./nova-api-error.log-2024-01-10 19:20:24.501809   File "/var/lib/kolla/venv/lib/python3.6/site-packages/eventlet/semaphore.py", line 147, in _do_acquire
  ./nova-api-error.log-2024-01-10 19:20:24.501812     waiter.switch()
  ./nova-api-error.log:2024-01-10 19:20:24.501826 greenlet.error: cannot switch to a different thread
  ./nova-api-error.log-2024-01-10 19:20:28.572977 Traceback (most recent call last):
  ./nova-api-error.log-2024-01-10 19:20:28.573039   File "/var/lib/kolla/venv/lib/python3.6/site-packages/eventlet/hubs/hub.py", line 476, in fire_timers
  ./nova-api-error.log-2024-01-10 19:20:28.573062     timer()
  ./nova-api-error.log-2024-01-10 19:20:28.573069   File "/var/lib/kolla/venv/lib/python3.6/site-packages/eventlet/hubs/timer.py", line 59, in __call__
  ./nova-api-error.log-2024-01-10 19:20:28.573073     cb(*args, **kw)
  ./nova-api-error.log-2024-01-10 19:20:28.573077   File "/var/lib/kolla/venv/lib/python3.6/site-packages/eventlet/semaphore.py", line 147, in _do_acquire
  ./nova-api-error.log-2024-01-10 19:20:28.573081     waiter.switch()
  ./nova-api-error.log:2024-01-10 19:20:28.573094 greenlet.error: cannot switch to a different thread
  ./nova-api-error.log-2024-01-10 19:20:30.610414 Traceback (most recent call last):
  ./nova-api-error.log-2024-01-10 19:20:30.610483   File "/var/lib/kolla/venv/lib/python3.6/site-packages/eventlet/hubs/hub.py", line 476, in fire_timers
  ./nova-api-error.log-2024-01-10 19:20:30.610490     timer()
  ./nova-api-error.log-2024-01-10 19:20:30.610497   File "/var/lib/kolla/venv/lib/python3.6/site-packages/eventlet/hubs/timer.py", line 59, in __call__
  ./nova-api-error.log-2024-01-10 19:20:30.610500     cb(*args, **kw)
  ./nova-api-error.log-2024-01-10 19:20:30.610505   File "/var/lib/kolla/venv/lib/python3.6/site-packages/eventlet/semaphore.py", line 147, in _do_acquire
  ./nova-api-error.log-2024-01-10 19:20:30.610510     waiter.switch()
  ./nova-api-error.log:2024-01-10 19:20:30.610529 greenlet.error: cannot switch to a different thread
  ./nova-api-error.log-2024-01-10 19:20:31.141706 Traceback (most recent call last):
  ./nova-api-error.log-2024-01-10 19:20:31.141788   File "/var/lib/kolla/venv/lib/python3.6/site-packages/eventlet/hubs/hub.py", line 476, in fire_timers
  ./nova-api-error.log-2024-01-10 19:20:31.141794     timer()
  ./nova-api-error.log-2024-01-10 19:20:31.141801   File "/var/lib/kolla/venv/lib/python3.6/site-packages/eventlet/hubs/timer.py", line 59, in __call__
  ./nova-api-error.log-2024-01-10 19:20:31.141804     cb(*args, **kw)
  ./nova-api-error.log-2024-01-10 19:20:31.141809   File "/var/lib/kolla/venv/lib/python3.6/site-packages/eventlet/semaphore.py", line 147, in _do_acquire
  ./nova-api-error.log-2024-01-10 19:20:31.141814     waiter.switch()
  ./nova-api-error.log:2024-01-10 19:20:31.141837 greenlet.error: cannot switch to a different thread

  all nova-api process blocked

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