Bug 1920461
| Summary: | cheroot (cherrypy) indefinitely hangs under a moderate rate of requests and never recovers | ||
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| Product: | [Fedora] Fedora EPEL | Reporter: | Ernesto Puerta <epuertat> |
| Component: | python-cheroot | Assignee: | Dan Radez <dradez> |
| Status: | CLOSED ERRATA | QA Contact: | Fedora Extras Quality Assurance <extras-qa> |
| Severity: | urgent | Docs Contact: | |
| Priority: | unspecified | ||
| Version: | epel8 | CC: | almartin, athakkar, dpivonka, dradez, igor.raits, jcaratza, jolmomar, kdreyer, nizamudeena |
| Target Milestone: | --- | ||
| Target Release: | --- | ||
| Hardware: | x86_64 | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | python-cheroot-8.5.2-1.el8 | Doc Type: | If docs needed, set a value |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2021-01-28 02:18:06 UTC | Type: | Bug |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
| Embargoed: | |||
| Bug Depends On: | |||
| Bug Blocks: | 1920534 | ||
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Comment 1
Ken Dreyer (Red Hat)
2021-01-26 15:18:01 UTC
Steps to reproduce this bug: 1. Install python3-cherrypy and python3-cheroot-8.5.1 from EPEL 2. Generate HTTPS key and cert following the instructions at https://docs.cherrypy.org/en/latest/deploy.html#ssl-support openssl genrsa -out privkey.pem 2048 openssl req -new -x509 -days 365 -key privkey.pem -out cert.pem 3. Create a "hello.py" app: import cherrypy cherrypy.server.ssl_certificate = "cert.pem" cherrypy.server.ssl_private_key = "privkey.pem" class HelloWorld(object): @cherrypy.expose def index(self): return "Hello World!" cherrypy.quickstart(HelloWorld()) 4. Run the app in a terminal 5. In another terminal, run "ab -c20 -n1000 https://localhost:8080/" until it hangs. In my experiments running this ab invocation three times was enough to get it to consistently hang. "-n10000" was less consistent in triggering this bug. Basically ab will report a hard timeout like "apr_pollset_poll: The timeout specified has expired (70007)", or an error like "SSL error". I wonder how we could build this into Fedora CI (https://docs.fedoraproject.org/ar/ci/) so that we can run this kind of test on every CherryPy and Cheroot package build. I've built RPMs with https://src.fedoraproject.org/rpms/python-cheroot/pull-request/11 at https://fedorapeople.org/~ktdreyer/bz1920461/ . I've run the same test with this newer version and it passes. FEDORA-EPEL-2021-848a87b9dc has been submitted as an update to Fedora EPEL 8. https://bodhi.fedoraproject.org/updates/FEDORA-EPEL-2021-848a87b9dc FEDORA-EPEL-2021-848a87b9dc has been pushed to the Fedora EPEL 8 testing repository. You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-EPEL-2021-848a87b9dc See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates. FEDORA-EPEL-2021-848a87b9dc has been pushed to the Fedora EPEL 8 stable repository. If problem still persists, please make note of it in this bug report. I took a stab at adding a CI test here: https://src.fedoraproject.org/fork/ktdreyer/rpms/python-cherrypy/blob/tests/f/tests I have not tried running this at all yet. I've emailed ci.org for help. FEDORA-EPEL-2021-4b4520f49d has been pushed to the Fedora EPEL 8 testing repository. You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-EPEL-2021-4b4520f49d See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates. |