0.README

Run uwsgi

uwsgi --wsgi-file=mt_sample.py  --threads 8 --workers 4  --max-requests 40 --http-socket=:8000 --master --min-worker-lifetime=7 -L

Run hey[1]

hey -c 32 -z 10m 'http://127.0.0.1:8000/'

[1] hey: https://github.com/rakyll/hey

backtrace

This is backtrace of worker doesn't stop.

(gdb) bt
#0  0x00007edda74940f6 in __futex_abstimed_wait_common64 (private=<optimized out>, cancel=true, abstime=0x0, op=393, expected=0,
    futex_word=0x7edda0000b70) at ./nptl/futex-internal.c:57
#1  __futex_abstimed_wait_common (cancel=true, private=<optimized out>, abstime=0x0, clockid=0, expected=0, futex_word=0x7edda0000b70)
    at ./nptl/futex-internal.c:87
#2  __GI___futex_abstimed_wait_cancelable64 (futex_word=futex_word@entry=0x7edda0000b70, expected=expected@entry=0, clockid=clockid@entry=0,
    abstime=abstime@entry=0x0, private=<optimized out>) at ./nptl/futex-internal.c:139
#3  0x00007edda749fc0f in do_futex_wait (sem=sem@entry=0x7edda0000b70, abstime=0x0, clockid=0) at ./nptl/sem_waitcommon.c:111
#4  0x00007edda749fca0 in __new_sem_wait_slow64 (sem=0x7edda0000b70, abstime=0x0, clockid=0) at ./nptl/sem_waitcommon.c:183
#5  0x00007edda749fd11 in __new_sem_wait (sem=<optimized out>) at ./nptl/sem_wait.c:42
#6  0x00007edda7d1b1a9 in PyThread_acquire_lock_timed (lock=0x7edda0000b70, microseconds=393, intr_flag=0) at Python/thread_pthread.h:497
#7  0x00007edda7dbefa2 in acquire_timed (lock=0x7edda0000b70, timeout=-1000000000) at ./Modules/_threadmodule.c:98
#8  0x00007edda7dbf21d in lock_PyThread_acquire_lock (self=0x7edda7392480, args=<optimized out>, kwds=<optimized out>)
    at ./Modules/_threadmodule.c:179
#9  0x00007edda7b58e1b in method_vectorcall_VARARGS_KEYWORDS (func=0x7edda77330b0, args=0x7edda8fa3098, nargsf=<optimized out>,
    kwnames=<optimized out>) at Objects/descrobject.c:364
#10 0x00007edda7bea390 in _PyObject_VectorcallTstate (tstate=0x7edda8f48c58 <_PyRuntime+166328>, callable=0x246, args=0x7edda8fa3098,
    nargsf=<optimized out>, kwnames=<optimized out>) at ./Include/internal/pycore_call.h:92
#11 PyObject_Vectorcall (callable=0x246, args=0x7edda8fa3098, nargsf=<optimized out>, kwnames=<optimized out>) at Objects/call.c:299
#12 _PyEval_EvalFrameDefault (tstate=0x7edda8f48c58 <_PyRuntime+166328>, frame=<optimized out>, throwflag=<optimized out>) at Python/ceval.c:4769
#13 0x00007edda7b52f8a in _PyEval_EvalFrame (tstate=<optimized out>, frame=0x7edda8fa3020, throwflag=0) at ./Include/internal/pycore_ceval.h:73
#14 _PyEval_Vector (tstate=0x7edda8f48c58 <_PyRuntime+166328>, func=0x7edda739e5c0, locals=<optimized out>, args=<optimized out>,
    argcount=<optimized out>, kwnames=<optimized out>) at Python/ceval.c:6434
#15 0x00007edda7b52f8a in _PyFunction_Vectorcall (func=0x7edda739e5c0, stack=<optimized out>, nargsf=<optimized out>, kwnames=<optimized out>)
   from /home/methane/.rye/py/cpython@3.11.8/install/lib/libpython3.11.so.1.0
#16 0x00007edda7a29466 in _PyObject_VectorcallTstate (tstate=0x7edda8f48c58 <_PyRuntime+166328>, callable=0x7edda739e5c0, args=0x7fffc56ce028,
    nargsf=9223372036854775808, kwnames=0x0) at ./Include/internal/pycore_call.h:92
#17 PyObject_VectorcallMethod (name=<optimized out>, args=0x7fffc56ce028, nargsf=9223372036854775808, kwnames=0x0) at Objects/call.c:855
#18 0x00007edda7d10762 in PyObject_CallMethodNoArgs (self=0x7edda7328db0, name=0x7edda0000b70) at ./Include/cpython/abstract.h:107
#19 wait_for_thread_shutdown (tstate=0x7edda8f48c58 <_PyRuntime+166328>) at Python/pylifecycle.c:2902
#20 0x00007edda7d102b1 in Py_FinalizeEx () at Python/pylifecycle.c:1764
#21 0x000056297da3a0f2 in uwsgi_plugins_atexit () at core/uwsgi.c:1820
#22 0x00007edda74451a6 in __run_exit_handlers (status=status@entry=0, listp=0x7edda75fe860 <__exit_funcs>,
    run_list_atexit=run_list_atexit@entry=true, run_dtors=run_dtors@entry=true) at ./stdlib/exit.c:111
#23 0x00007edda74452e0 in __GI_exit (status=status@entry=0) at ./stdlib/exit.c:141
#24 0x000056297d9e72f3 in uwsgi_exit (status=-1610609808, status@entry=0) at core/utils.c:4453
#25 0x000056297da391bd in simple_goodbye_cruel_world () at core/uwsgi.c:1298
#26 goodbye_cruel_world () at core/uwsgi.c:1305
#27 0x000056297d9e95ff in uwsgi_close_request (wsgi_req=0x7edda760f078) at core/utils.c:1205
#28 0x000056297da37a09 in simple_loop_run (arg1=arg1@entry=0x0) at core/loop.c:151
#29 0x000056297da378ae in uwsgi_loop_cores_run (func=<optimized out>) at core/loop.c:74
#30 simple_loop () at core/loop.c:62
#31 0x000056297da3f34f in uwsgi_ignition () at core/uwsgi.c:3615
#32 0x000056297da3f09f in uwsgi_worker_run () at core/uwsgi.c:3543
#33 0x000056297da3cb84 in uwsgi_run () at core/uwsgi.c:3453
#34 0x000056297da3a2bb in main (argc=<optimized out>, argv=<optimized out>, envp=<optimized out>) at core/uwsgi.c:2051

mt_sample.py

import atexit, sys, time, threading

sleep = True

def sleeper():
    while sleep:
        time.sleep(1)

#th = threading.Thread(target=sleeper, daemon=True)
th = threading.Thread(target=sleeper)
th.start()

@atexit.register
def stop_sleep():
    global sleep
    print("stop_sleap is called", file=sys.stderr)
    sleep = False
    th.join()

def application(env, start_response):
    time.sleep(1)
    start_response('200 OK', [('Content-Type','text/html')])
    return [b"Hello World"]