我正在寻找一段时间的解决方案来调试我的线程，我发现它在这里感谢haridsv。我使用稍微简化的版本，使用traceback.print_stack():

import sys, traceback, signal
import threading
import os

def dumpstacks(signal, frame):
  id2name = dict((th.ident, th.name) for th in threading.enumerate())
  for threadId, stack in sys._current_frames().items():
    print(id2name[threadId])
    traceback.print_stack(f=stack)

signal.signal(signal.SIGQUIT, dumpstacks)

os.killpg(os.getpgid(0), signal.SIGQUIT)

为了满足我的需要，我还按名称筛选线程。

在Solaris上，你可以使用pstack(1)。不需要修改python代码。如。

# pstack 16000 | grep : | head
16000: /usr/bin/python2.6 /usr/lib/pkg.depotd --cfg svc:/application/pkg/serv
[ /usr/lib/python2.6/vendor-packages/cherrypy/process/wspbus.py:282 (_wait) ]
[ /usr/lib/python2.6/vendor-packages/cherrypy/process/wspbus.py:295 (wait) ]
[ /usr/lib/python2.6/vendor-packages/cherrypy/process/wspbus.py:242 (block) ]
[ /usr/lib/python2.6/vendor-packages/cherrypy/_init_.py:249 (quickstart) ]
[ /usr/lib/pkg.depotd:890 (<module>) ]
[ /usr/lib/python2.6/threading.py:256 (wait) ]
[ /usr/lib/python2.6/Queue.py:177 (get) ]
[ /usr/lib/python2.6/vendor-packages/pkg/server/depot.py:2142 (run) ]
[ /usr/lib/python2.6/threading.py:477 (run)
etc.

我不知道有什么类似于java对SIGQUIT的响应，所以您可能必须将其构建到应用程序中。也许您可以在另一个线程中创建一个服务器，以便在响应某种类型的消息时获得堆栈跟踪?

如果你需要用uWSGI来做这件事，它有内置的Python Tracebacker，这只是在配置中启用它的问题(编号附加在每个worker的名称上):

py-tracebacker=/var/run/uwsgi/pytrace

一旦你这样做了，你可以简单地通过连接到套接字打印反向跟踪:

uwsgi --connect-and-read /var/run/uwsgi/pytrace1

用优秀的间谍技术就能做到。它是Python程序的抽样分析器，因此它的工作是附加到Python进程并对其调用堆栈进行抽样。因此，py-spy dump——pid $SOME_PID是转储$SOME_PID进程中所有线程调用堆栈所需要做的全部工作。通常它需要升级的特权(读取目标进程的内存)。

下面是一个线程Python应用程序的示例。

$ sudo py-spy dump --pid 31080
Process 31080: python3.7 -m chronologer -e production serve -u www-data -m
Python v3.7.1 (/usr/local/bin/python3.7)

Thread 0x7FEF5E410400 (active): "MainThread"
    _wait (cherrypy/process/wspbus.py:370)
    wait (cherrypy/process/wspbus.py:384)
    block (cherrypy/process/wspbus.py:321)
    start (cherrypy/daemon.py:72)
    serve (chronologer/cli.py:27)
    main (chronologer/cli.py:84)
    <module> (chronologer/__main__.py:5)
    _run_code (runpy.py:85)
    _run_module_as_main (runpy.py:193)
Thread 0x7FEF55636700 (active): "_TimeoutMonitor"
    run (cherrypy/process/plugins.py:518)
    _bootstrap_inner (threading.py:917)
    _bootstrap (threading.py:885)
Thread 0x7FEF54B35700 (active): "HTTPServer Thread-2"
    accept (socket.py:212)
    tick (cherrypy/wsgiserver/__init__.py:2075)
    start (cherrypy/wsgiserver/__init__.py:2021)
    _start_http_thread (cherrypy/process/servers.py:217)
    run (threading.py:865)
    _bootstrap_inner (threading.py:917)
    _bootstrap (threading.py:885)
...
Thread 0x7FEF2BFFF700 (idle): "CP Server Thread-10"
    wait (threading.py:296)
    get (queue.py:170)
    run (cherrypy/wsgiserver/__init__.py:1586)
    _bootstrap_inner (threading.py:917)
    _bootstrap (threading.py:885)  

traceback模块有一些不错的函数，其中包括:

import traceback

traceback.print_stack()