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autogen - ✅(Solved) Fix Use collision-resistant conversation/run IDs for session tracing [1 pull requests, 2 comments, 3 participants]

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microsoft/autogen#7270•Fetched 2026-04-08 00:39:58
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davidahmanndavidahmann
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davidahmanndavidahmannjoaquinariasco-labjoaquinariasco-labxXMrNidaXxxXMrNidaXx
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Fix Action

Fixed

PR fix notes

PR #7271: Use collision-resistant request IDs in gRPC worker runtime

Description (problem / solution / changelog)

Problem

Sequential numeric request IDs in the gRPC worker runtime are collision-prone across runtime instances and can corrupt request/result correlation in concurrent environments.

Why now

Issue #7270 calls out request ID collision risk and asks for stronger runtime correlation guarantees.

What changed

  • Added a per-runtime UUID prefix for request IDs.
  • Updated request ID generation to combine runtime-unique prefix with monotonic sequence.
  • Added regression test ensuring deterministic per-runtime sequencing with collision-resistant prefixing.

Validation

  • uv run --project python pytest python/packages/autogen-ext/tests/test_worker_runtime.py -k request_ids_are_collision_resistant_per_runtime (pass)

Refs #7270

Changed files

  • python/packages/autogen-ext/src/autogen_ext/runtimes/grpc/_worker_runtime.py (modified, +2/-1)
  • python/packages/autogen-ext/tests/test_worker_runtime.py (modified, +15/-0)
RAW_BUFFERClick to expand / collapse

Problem

Conversation/run identifiers that depend on normalized names or low-entropy sources can collide across concurrent sessions, reducing traceability and audit reliability.

Why now

AutoGen’s multi-agent and multi-session workloads require durable correlation IDs for deterministic diagnostics and receipts.

Evidence Packet

  • Version/commit under test: origin/main at 13e144e5476a
  • Runtime environment: macOS 26.3 (arm64), Python 3.14.0
  • Minimal repro:
    1. Start multiple sessions/runs with similar normalized labels.
    2. Record run/conversation identifiers.
    3. Observe potential identifier reuse or ambiguity under concurrency.
  • Expected behavior: collision-resistant unique IDs for each run/session.
  • Actual behavior: current ID generation may allow ambiguous correlation under high concurrency.

Why code change (not docs)

Identifier generation is a runtime contract and must be collision-resistant in code.

Scope / Codepaths

  • python/packages/autogen-agentchat/src
  • python/packages/autogen-core/src

Acceptance Criteria

  • Run/conversation IDs include collision-resistant component.
  • IDs remain stable for auditing semantics and unique per execution.
  • Tests cover concurrent/similar-name scenarios.

Validation Plan

  • Add ID-generation tests with collision fixtures.
  • Verify no collisions across concurrent generation stress tests.

extent analysis

Fix Plan

To address the issue of collision-prone conversation/run identifiers, we will implement a UUID-based solution.

Steps to Fix

  • Modify the identifier generation function to use a UUID library.
  • Ensure the UUID is generated randomly and not based on any user-input data.
  • Update the autogen-agentchat and autogen-core packages to use the new identifier generation function.

Example Code

import uuid

def generate_collision_resistant_id():
    """Generate a collision-resistant ID using UUID."""
    return str(uuid.uuid4())

# Example usage:
run_id = generate_collision_resistant_id()
print(run_id)

Verification

To verify the fix, we will:

  • Run stress tests with concurrent sessions and similar labels.
  • Check for any collisions in the generated IDs.
  • Validate that the IDs remain stable for auditing semantics and are unique per execution.

Extra Tips

  • Use a well-tested UUID library to minimize the chance of collisions.
  • Avoid using user-input data or low-entropy sources when generating IDs.
  • Consider adding additional entropy to the ID generation function if required.

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#api#ssr#installation#tensor shape#autograd error#tokenizer error#prompt formatting#chain error#conversation history#tool integration

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autogen - ✅(Solved) Fix Use collision-resistant conversation/run IDs for session tracing [1 pull requests, 2 comments, 3 participants]