Saleor: Heroku uWSGI integration problem

[romantomczak]

Hi there, I was sucessfully using saleor to run my e-commerce platform with Heroku for over 6 months (with no changes for the last 2 months). It was all right until today. I got a Segmentation Fault on uWSGI.

I tried everything what I found on the Internet about this problem, but to no avail. Maybe some of you are concerned about what is happening here. It is particularly strange because I did not change anything and the code just stopped working.

Thanks for all answers. Keep up the good work!

Find the logs from Heroku attached.

`2019-09-24T20:36:38.536320+00:00 app[web.1]: * uWSGI is running in multiple interpreter mode *

2019-09-24T20:36:38.536323+00:00 app[web.1]: spawned uWSGI master process (pid: 4)

2019-09-24T20:36:38.539825+00:00 app[web.1]: spawned uWSGI worker 1 (pid: 11, cores: 1)

2019-09-24T20:36:38.542098+00:00 app[web.1]: spawned uWSGI worker 2 (pid: 12, cores: 1)

2019-09-24T20:36:38.544163+00:00 app[web.1]: spawned uWSGI worker 3 (pid: 13, cores: 1)

2019-09-24T20:36:38.546455+00:00 app[web.1]: spawned uWSGI worker 4 (pid: 14, cores: 1)

**2019-09-24T20:36:42.172640+00:00 heroku[router]: at=error code=H13 desc="Connection closed without response" method=GET path="/" host=atena-test2.herokuapp.com request_id=0963b2ab-e939-4dc2-bd5e-bf440b8f9ea0 fwd="159.205.241.212" dyno=web.1 connect=1ms service=5317ms status=503 bytes=0 protocol=https

2019-09-24T20:36:42.069020+00:00 app[web.1]: !!! uWSGI process 11 got Segmentation Fault !!!**

2019-09-24T20:36:42.090638+00:00 app[web.1]: * backtrace of 11 *

2019-09-24T20:36:42.090643+00:00 app[web.1]: uwsgi(uwsgi_backtrace+0x2a) [0x55917384a79a]

2019-09-24T20:36:42.090645+00:00 app[web.1]: uwsgi(uwsgi_segfault+0x23) [0x55917384ab83]

2019-09-24T20:36:42.090648+00:00 app[web.1]: /lib/x86_64-linux-gnu/libc.so.6(+0x3ef20) [0x7f6c54faef20]

2019-09-24T20:36:42.090658+00:00 app[web.1]: /app/.heroku/python/lib/python3.6/site-packages/psycopg2/.libs/./libssl-1d6df745.so.1.0.2p(ssl3_cleanup_key_block+0xb) [0x7f6c4b6d4cab]

2019-09-24T20:36:42.090663+00:00 app[web.1]: /app/.heroku/python/lib/python3.6/site-packages/psycopg2/.libs/./libssl-1d6df745.so.1.0.2p(ssl3_clear+0x16) [0x7f6c4b6d25a6]

2019-09-24T20:36:42.090666+00:00 app[web.1]: /app/.heroku/python/lib/python3.6/site-packages/psycopg2/.libs/./libssl-1d6df745.so.1.0.2p(tls1_clear+0x9) [0x7f6c4b6de219]

2019-09-24T20:36:42.090669+00:00 app[web.1]: /usr/lib/x86_64-linux-gnu/libssl.so.1.1(SSL_new+0x3f2) [0x7f6c56062a22]

2019-09-24T20:36:42.090671+00:00 app[web.1]: /app/.heroku/python/lib/python3.6/site-packages/psycopg2/.libs/libpq-3a62a61f.so.5.11(+0x23969) [0x7f6c4b969969]

2019-09-24T20:36:42.090673+00:00 app[web.1]: /app/.heroku/python/lib/python3.6/site-packages/psycopg2/.libs/libpq-3a62a61f.so.5.11(+0x24fc5) [0x7f6c4b96afc5]

2019-09-24T20:36:42.090675+00:00 app[web.1]: /app/.heroku/python/lib/python3.6/site-packages/psycopg2/.libs/libpq-3a62a61f.so.5.11(PQconnectPoll+0xb78) [0x7f6c4b954ba8]

2019-09-24T20:36:42.090680+00:00 app[web.1]: /app/.heroku/python/lib/python3.6/site-packages/psycopg2/.libs/libpq-3a62a61f.so.5.11(+0xfa28) [0x7f6c4b955a28]

2019-09-24T20:36:42.090683+00:00 app[web.1]: /app/.heroku/python/lib/python3.6/site-packages/psycopg2/.libs/libpq-3a62a61f.so.5.11(PQconnectdb+0x1f) [0x7f6c4b95841f]

2019-09-24T20:36:42.090685+00:00 app[web.1]: /app/.heroku/python/lib/python3.6/site-packages/psycopg2/_psycopg.cpython-36m-x86_64-linux-gnu.so(+0x12651) [0x7f6c4bba9651]

2019-09-24T20:36:42.090687+00:00 app[web.1]: /app/.heroku/python/lib/python3.6/site-packages/psycopg2/_psycopg.cpython-36m-x86_64-linux-gnu.so(+0x133df) [0x7f6c4bbaa3df]

2019-09-24T20:36:42.090689+00:00 app[web.1]: uwsgi(+0x1a4377) [0x559173911377]

2019-09-24T20:36:42.090691+00:00 app[web.1]: uwsgi(_PyObject_FastCallDict+0xb3) [0x5591738962c3]

2019-09-24T20:36:42.090693+00:00 app[web.1]: uwsgi(_PyObject_CallFunction_SizeT+0x244) [0x559173896f64]

2019-09-24T20:36:42.090695+00:00 app[web.1]: /app/.heroku/python/lib/python3.6/site-packages/psycopg2/_psycopg.cpython-36m-x86_64-linux-gnu.so(+0xc1a8) [0x7f6c4bba31a8]

2019-09-24T20:36:42.090697+00:00 app[web.1]: uwsgi(PyCFunction_Call+0x33) [0x5591738f6ef3]

2019-09-24T20:36:42.090699+00:00 app[web.1]: uwsgi(_PyEval_EvalFrameDefault+0x6d98) [0x559173973f18]

2019-09-24T20:36:42.090701+00:00 app[web.1]: uwsgi(+0x1fec53) [0x55917396bc53]

2019-09-24T20:36:42.090703+00:00 app[web.1]: uwsgi(PyEval_EvalCodeEx+0x3e) [0x55917396ccde]

2019-09-24T20:36:42.090705+00:00 app[web.1]: uwsgi(+0x15048d) [0x5591738bd48d]

2019-09-24T20:36:42.090707+00:00 app[web.1]: uwsgi(PyObject_Call+0x3e) [0x5591738960be]

2019-09-24T20:36:42.090710+00:00 app[web.1]: uwsgi(_PyEval_EvalFrameDefault+0x1c2a) [0x55917396edaa]

2019-09-24T20:36:42.090712+00:00 app[web.1]: uwsgi(+0x1fe128) [0x55917396b128]

2019-09-24T20:36:42.090714+00:00 app[web.1]: uwsgi(+0x1ff196) [0x55917396c196]

2019-09-24T20:36:42.090716+00:00 app[web.1]: uwsgi(_PyEval_EvalFrameDefault+0x3740) [0x5591739708c0]

2019-09-24T20:36:42.090718+00:00 app[web.1]: uwsgi(+0x1fe128) [0x55917396b128]

2019-09-24T20:36:42.090720+00:00 app[web.1]: uwsgi(+0x1ff196) [0x55917396c196]

2019-09-24T20:36:42.090722+00:00 app[web.1]: uwsgi(_PyEval_EvalFrameDefault+0x3740) [0x5591739708c0]

2019-09-24T20:36:42.090725+00:00 app[web.1]: uwsgi(+0x1fe128) [0x55917396b128]

2019-09-24T20:36:42.090727+00:00 app[web.1]: uwsgi(+0x1ff196) [0x55917396c196]

2019-09-24T20:36:42.090729+00:00 app[web.1]: uwsgi(_PyEval_EvalFrameDefault+0x3740) [0x5591739708c0]

2019-09-24T20:36:42.090731+00:00 app[web.1]: uwsgi(+0x1fec53) [0x55917396bc53]

2019-09-24T20:36:42.090733+00:00 app[web.1]: uwsgi(+0x1feeed) [0x55917396beed]

2019-09-24T20:36:42.090735+00:00 app[web.1]: uwsgi(_PyEval_EvalFrameDefault+0x3740) [0x5591739708c0]

2019-09-24T20:36:42.090737+00:00 app[web.1]: uwsgi(+0x1fe128) [0x55917396b128]

2019-09-24T20:36:42.090739+00:00 app[web.1]: uwsgi(+0x1ff196) [0x55917396c196]

2019-09-24T20:36:42.090741+00:00 app[web.1]: uwsgi(_PyEval_EvalFrameDefault+0x3740) [0x5591739708c0]

2019-09-24T20:36:42.090743+00:00 app[web.1]: uwsgi(+0x1fec53) [0x55917396bc53]

2019-09-24T20:36:42.090745+00:00 app[web.1]: uwsgi(+0x1feeed) [0x55917396beed]

2019-09-24T20:36:42.090747+00:00 app[web.1]: uwsgi(_PyEval_EvalFrameDefault+0x1ad5) [0x55917396ec55]

2019-09-24T20:36:42.090750+00:00 app[web.1]: uwsgi(+0x2c4307) [0x559173a31307]

2019-09-24T20:36:42.090752+00:00 app[web.1]: uwsgi(+0x1562fe) [0x5591738c32fe]

2019-09-24T20:36:42.090754+00:00 app[web.1]: uwsgi(+0x1567dd) [0x5591738c37dd]

2019-09-24T20:36:42.090756+00:00 app[web.1]: uwsgi(+0x1a4377) [0x559173911377]

2019-09-24T20:36:42.090758+00:00 app[web.1]: uwsgi(_PyObject_FastCallDict+0xb3) [0x5591738962c3]

2019-09-24T20:36:42.090760+00:00 app[web.1]: uwsgi(+0x1fedb0) [0x55917396bdb0]

2019-09-24T20:36:42.090762+00:00 app[web.1]: uwsgi(_PyEval_EvalFrameDefault+0x3740) [0x5591739708c0]

2019-09-24T20:36:42.090765+00:00 app[web.1]: uwsgi(+0x1fe128) [0x55917396b128]

2019-09-24T20:36:42.090767+00:00 app[web.1]: uwsgi(+0x1ff196) [0x55917396c196]

2019-09-24T20:36:42.090769+00:00 app[web.1]: uwsgi(_PyEval_EvalFrameDefault+0x3740) [0x5591739708c0]

2019-09-24T20:36:42.090771+00:00 app[web.1]: uwsgi(+0x1fe128) [0x55917396b128]

2019-09-24T20:36:42.090773+00:00 app[web.1]: uwsgi(_PyFunction_FastCallDict+0x2b0) [0x559173975290]

2019-09-24T20:36:42.090775+00:00 app[web.1]: uwsgi(_PyObject_Call_Prepend+0x249) [0x559173896659]

2019-09-24T20:36:42.090778+00:00 app[web.1]: uwsgi(PyObject_Call+0x3e) [0x5591738960be]

2019-09-24T20:36:42.090780+00:00 app[web.1]: uwsgi(+0x1ac819) [0x559173919819]

2019-09-24T20:36:42.090782+00:00 app[web.1]: uwsgi(_PyEval_EvalFrameDefault+0x1f1c) [0x55917396f09c]

2019-09-24T20:36:42.090784+00:00 app[web.1]: uwsgi(+0x1fec53) [0x55917396bc53]

2019-09-24T20:36:42.090786+00:00 app[web.1]: uwsgi(+0x1feeed) [0x55917396beed]

2019-09-24T20:36:42.090789+00:00 app[web.1]: uwsgi(_PyEval_EvalFrameDefault+0x3740) [0x5591739708c0]

2019-09-24T20:36:42.090791+00:00 app[web.1]: uwsgi(+0x1fec53) [0x55917396bc53]

2019-09-24T20:36:42.090793+00:00 app[web.1]: uwsgi(+0x1feeed) [0x55917396beed]

2019-09-24T20:36:42.090795+00:00 app[web.1]: * end of backtrace *

2019-09-24T20:36:42.552400+00:00 app[web.1]: DAMN ! worker 1 (pid: 11) died :( trying respawn ...

2019-09-24T20:36:42.556140+00:00 app[web.1]: Respawned uWSGI worker 1 (new pid: 15)

Disconnected from log stream. There may be events happening that you do not see here! Attempting to reconnect...

2019-09-24T20:36:42.090780+00:00 app[web.1]: uwsgi(+0x1ac819) [0x559173919819]

2019-09-24T20:36:42.090782+00:00 app[web.1]: uwsgi(_PyEval_EvalFrameDefault+0x1f1c) [0x55917396f09c]

2019-09-24T20:36:42.090784+00:00 app[web.1]: uwsgi(+0x1fec53) [0x55917396bc53]

2019-09-24T20:36:42.090786+00:00 app[web.1]: uwsgi(+0x1feeed) [0x55917396beed]

2019-09-24T20:36:42.090789+00:00 app[web.1]: uwsgi(_PyEval_EvalFrameDefault+0x3740) [0x5591739708c0]

2019-09-24T20:36:42.090791+00:00 app[web.1]: uwsgi(+0x1fec53) [0x55917396bc53]

2019-09-24T20:36:42.090793+00:00 app[web.1]: uwsgi(+0x1feeed) [0x55917396beed]

2019-09-24T20:36:42.090795+00:00 app[web.1]: * end of backtrace *

2019-09-24T20:36:42.552400+00:00 app[web.1]: DAMN ! worker 1 (pid: 11) died :( trying respawn ...

2019-09-24T20:36:42.556140+00:00 app[web.1]: Respawned uWSGI worker 1 (new pid: 15)`

[romantomczak]

Today I have created the same app with Docker and got the same Segmentation Fault with various databases.

[Pacu2]

Same happened to me with an app untouched for the last 8 months. Seems like Heroku changed something on their side

[Pacu2]

Had no time to debug it, but swapping uwsgi for gunicorn works just fine.

Add it to requirements file/Pipenv and update Procfile to use gunicorn (web: gunicorn saleor.wsgi)

[romantomczak]

I solved the problem with updating runtime to Python 3.7.3 and uwsgi from 2.0.17.1 to 2.0.18. Works fine at the moment. I suppose that there was an issue with uwsgi support from Heroku's side. Switching to gunicorn does the job as well.

Thanks for help! I enjoy using saleor very much!

[stale[bot]]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.