d47637fa40
SIGALRM is the simplest way to set a specific maximum duration that queue workers can take to handle a specific message. This only works in non-threaded environments, however, as signal handlers are per-process, not per-thread. The MAX_CONSUME_SECONDS is set quite high, at 10s -- the longest average worker consume time is embed_links, which hovers near 1s. Since just knowing the recent mean does not give much information[1], it is difficult to know how much variance is expected. As such, we set the threshold to be such that only events which are significant outliers will be timed out. This can be tuned downwards as more statistics are gathered on the runtime of the workers. The exception to this is DeferredWorker, which deals with quite-long requests, and thus has no enforceable SLO. [1] https://www.autodesk.com/research/publications/same-stats-different-graphs |
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| static | ||
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| templates | ||
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| .editorconfig | ||
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| .gitattributes | ||
| .gitignore | ||
| .gitlint | ||
| .isort.cfg | ||
| .mailmap | ||
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| .prettierignore | ||
| .pyre_configuration | ||
| .sonarcloud.properties | ||
| .yarnrc | ||
| babel.config.js | ||
| CODE_OF_CONDUCT.md | ||
| CONTRIBUTING.md | ||
| Dockerfile-postgresql | ||
| LICENSE | ||
| manage.py | ||
| mypy.ini | ||
| NOTICE | ||
| package.json | ||
| postcss.config.js | ||
| prettier.config.js | ||
| README.md | ||
| SECURITY.md | ||
| setup.cfg | ||
| stylelint.config.js | ||
| tsconfig.json | ||
| Vagrantfile | ||
| version.py | ||
| webpack.config.ts | ||
| yarn.lock | ||
Zulip overview
Zulip is a powerful, open source group chat application that combines the immediacy of real-time chat with the productivity benefits of threaded conversations. Zulip is used by open source projects, Fortune 500 companies, large standards bodies, and others who need a real-time chat system that allows users to easily process hundreds or thousands of messages a day. With over 500 contributors merging over 500 commits a month, Zulip is also the largest and fastest growing open source group chat project.
Getting started
Click on the appropriate link below. If nothing seems to apply, join us on the Zulip community server and tell us what's up!
You might be interested in:
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Contributing code. Check out our guide for new contributors to get started. Zulip prides itself on maintaining a clean and well-tested codebase, and a stock of hundreds of beginner-friendly issues.
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Contributing non-code. Report an issue, translate Zulip into your language, write for the Zulip blog, or give us feedback. We would love to hear from you, even if you're just trying the product out.
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Supporting Zulip. Advocate for your organization to use Zulip, write a review in the mobile app stores, or upvote Zulip on product comparison sites.
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Checking Zulip out. The best way to see Zulip in action is to drop by the Zulip community server. We also recommend reading Zulip for open source, Zulip for companies, or Zulip for working groups and part time communities.
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Running a Zulip server. Use a preconfigured DigitalOcean droplet, install Zulip directly, or use Zulip's experimental Docker image. Commercial support is available; see https://zulip.com/plans for details.
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Using Zulip without setting up a server. https://zulip.com offers free and commercial hosting, including providing our paid plan for free to fellow open source projects.
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Participating in outreach programs like Google Summer of Code.
You may also be interested in reading our blog or following us on Twitter. Zulip is distributed under the Apache 2.0 license.