Open-EO/openeo-geotrellis-extensions

Jep does not limit usable memory

Open

#389 opened on Mar 4, 2025

View on GitHub
 (1 comment) (0 reactions) (1 assignee)Scala (5 forks)auto 404
enhancementgood first issue

Repository metrics

Stars
 (7 stars)
PR merge metrics
 (PR metrics pending)

Description

This could be added to DEFAULT_IMPORTS:

private val sc = SparkContext.getOrCreate()
private val pysparkMemory = sc.getConf.get("spark.executor.pyspark.memory")

import resource
limit = {pysparkMemoryBytes}
resource.setrlimit(resource.RLIMIT_AS, (limit, limit))

Contributor guide

Research direction
Locate the DEFAULT IMPORTS definition in the codebase, then trace how it is used to configure the Jep environment. Investigate how Spark executor memory settings are accessed and determine the correct way to convert the 'spark.executor.pyspark.memory' configuration into a Python resource limit using resource.setrlimit. Verify that the limit is applied before Python scripts execute.
Tech stack
scalasparkpython
Domain
backenddata engineering
Issue type
Bug
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
3
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
Half day
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
Active
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Clear
Prerequisites
GitScalaSpark
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
70