Domain Arrivals
You’re viewing the 2026-08-16 issue, not the current issue. Go to the current issue: 2026-10-21

Featured in Domain Arrivals · 2026-08-16

SparkDoctor Reads the Evidence When Spark Jobs Go Bad

sparkdoctor.dev ↗ · Developer Corner · score 82.0
○Open: public page gives enough substance to understand the site $Paid: pricing, booking, ecommerce, subscription, or paid access is visible ADAds: visible ad load or ad-supported content ✦Pretty: notable design, copy, craft, or presentation ◆Pro: polished, finished-feeling, serious, or operationally mature ◇Niche: specific audience, workflow, or unusually focused use case ◉Human: personal, local, community, civic, handmade, or real-person signal !Suspicious: scammy, spammy, trust theater, finance fog, or credibility concern

An open-source, local-first CLI that diagnoses Apache Spark event logs for skew, spills, shuffle waste, failed stages, and SQL plan problems.

Why it surfaced

SparkDoctor turns a raw event log into a concrete bottleneck report, such as identifying 300 MiB of disk spill across two tasks in a sample job. It runs locally without a Spark History Server or hosted backend, while its Pro tier adds regression detection and CI checks for teams.

Read the complete issue Observed source ↗

Continue into the edition

The 240-Material Organ

August 16’s newborn domains include a 240-material perfume organ, a repeatedly saved JPEG cat, a ski tracker designed by a 15-year-old, and a searchable page claiming to contain 148,303 prescription records.

This is one of 1,000 discoveries in the 2026-08-16 Domain Arrivals issue.

Explore the complete issue Browse Developer Corner

More from Developer Corner

Three more arrivals

Laplace, the Pokémon bot that searches eight possible worlds trylaplaceai.com

Laplace is an open-source Pokémon Showdown AI that plays Gen 9 Random Battle using determinized Monte-Carlo Tree Search.

 Claimset, the stale-citation detector claimset.org

Claimset is an open format and command-line verifier for checking whether published claims still match their cited sources.

 Observability Arena Puts Agent-Observability APIs Through Their Paces agent-otel.tech

An executable benchmark ranks five OTEL-based agent-observability platforms by how effectively their read APIs return trace data.