Fix: Set gRPC reconnection backoff to prevent indefinite hangs

[RickyMoon800]

Problem

In certain network environments (e.g., high-concurrency batch updates), the Python client could hang indefinitely if the connection dropped mid-stream due to default gRPC settings.

Solution

This PR updates parse_channel_options to include standard gRPC reconnection backoff parameters (grpc.initial_reconnect_backoff_ms and grpc.max_reconnect_backoff_ms). This ensures the client follows an exponential backoff strategy instead of hanging or retrying immediately in a tight loop.

Impact

• Improves stability for long-running batch operations.
• Zero breaking changes to public API.

Bounty Address (USDT-TRC20): TPCeXK1ziCgwZM8JgypZzdKxBemV7Q2TJn

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No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Organization UI

Review profile: CHILL

Plan: Pro

Run ID: 6faa5001-d9fc-41f1-9ae8-f0be89b36929

📥 Commits

Reviewing files that changed from the base of the PR and between cd5eb25 and 523c6e6.

📒 Files selected for processing (1)

• qdrant_client/connection.py

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📝 Walkthrough

Walkthrough

The parse_channel_options() function in qdrant_client/connection.py has been updated to include three additional gRPC client channel configuration entries in its default_options dictionary: grpc.enable_retries set to 1, grpc.initial_reconnect_backoff_ms set to 1000, and grpc.max_reconnect_backoff_ms set to 30000. These new defaults apply when no user-supplied values override them. No public function signatures or exported entities were modified.

Estimated code review effort

🎯 2 (Simple) | ⏱️ ~10 minutes

🚥 Pre-merge checks | ✅ 2 | ❌ 1

❌ Failed checks (1 warning)

Check name	Status	Explanation	Resolution
Docstring Coverage	⚠️ Warning	Docstring coverage is 0.00% which is insufficient. The required threshold is 80.00%.	Write docstrings for the functions missing them to satisfy the coverage threshold.

✅ Passed checks (2 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title directly and clearly describes the main change: setting gRPC reconnection backoff to prevent indefinite hangs, which is exactly what the PR accomplishes.
Description check	✅ Passed	The description provides relevant context about the problem, solution, and impact, all of which directly relate to the changeset of updating gRPC channel options.

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✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests

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