Add Distributed Load Distributor plugin

[davidcampbelldc]

Summary

Adds the Distributed Load Distributor plugin to the catalog. Automatically distributes thread counts across JMeter generators so each runs its fair share of the total load.

Motivation

In JMeter distributed testing, every generator runs the full thread count from the test plan. Teams manually divide thread counts whenever the generator count changes. This plugin automates that calculation at runtime.

Features

• Works with JMeter remote testing (-R) via -Ggenerator.hosts=slave1,slave2,slave3
• Works with standalone generators via -Jgenerator.id=N -Jgenerator.count=M
• Auto-activates from lib/ext/ — no test plan element required
• Supports Standard, Ultimate, Concurrency, and Stepping ThreadGroups
• Thread modifications are in-memory only (non-destructive)

Changes

• Added load distributor plugin entry to various.json

Notes

• No breaking changes
• Requires Java 11+, JMeter 5.0+
• Apache License 2.0
• Zero external dependencies — fully standalone, no dependency on LoadMagic services
• GitHub: https://github.com/loadmagic/jmeter-load-distributor

About the vendor

Built by LoadMagic, an AI-powered performance testing platform. This plugin is fully open source and standalone — it works with any JMeter installation with no connection to LoadMagic services.

[undera]

Please resolve the conflict

[davidcampbelldc]

Conflict resolved — rebased onto current master. Ready for review when you get a chance. The build workflow is awaiting your approval to run.