Parsely/pykafka

Support rdkafka with gevent

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#446 opened on Feb 5, 2016

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 (2 comments) (0 reactions) (0 assignees)Python (1,114 stars) (231 forks)batch import
enhancementgeventhelp wanted

Description

As proven by libraries like psycopg2 it is possible to provide a way to integrate a C extension with gevent. This may or may not require cooperation on librdkafka's part but will provide a lot of value in terms of throughput and concurrency. Let's investigate on what's required in order to enable gevent support even with the C extension enabled.

Contributor guide

Tech stack
pythonccpp
Domain
backenddataperformance
Issue type
feature
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
4
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
over 1 week
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
stale
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
mostly clear
Prerequisites
Python C extensionsgeventlibrdkafka internalsasynchronous I/O
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
15
Research direction
Investigate how psycopg2 integrated gevent with its C extension as a reference. Examine librdkafka's event loop and threading model to identify coupling points. Look for areas in pykafka's C extension where blocking calls occur and could be made gevent friendly. Review existing comments on the issue for any suggested approaches.