Remove Insights support

[mykaul]

Motivation

Cherry-picked from apache/cassandra-python-driver@c948fa1 (CASSPYTHON-24). Insights was a DSE-only monitoring/telemetry feature; it has no relevance for Scylla and is being dropped upstream, so we drop it here too.

Change

• Removed cassandra/datastax/insights/ (registry, reporter, serializers, util) and MonitorReporter.
• Removed Cluster.monitor_reporting_enabled/_interval, client_id, application_name/application_version, and the corresponding __init__ kwargs.
• Removed tests/unit/advanced/test_insights.py.
• Fixed fallout in tests that passed the now-gone monitor_reporting_enabled kwarg.
• Kept all Scylla-specific fork additions (tablets, shard-awareness, client routes, ApplicationInfoBase) untouched — unrelated to Insights despite similar field names.

Tests

• Full unit test suite passes: 681 passed, 46 skipped.
• Verified pyproject.toml parses and cassandra.cluster imports cleanly after the change.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

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Run ID: f2efcc7a-0ae8-4ebc-b6a2-9b6b1935f56f

📥 Commits

Reviewing files that changed from the base of the PR and between 1d7e601 and fe2f29a.

📒 Files selected for processing (12)

• cassandra/cluster.py
• cassandra/datastax/insights/__init__.py
• cassandra/datastax/insights/registry.py
• cassandra/datastax/insights/reporter.py
• cassandra/datastax/insights/serializers.py
• cassandra/datastax/insights/util.py
• pyproject.toml
• tests/integration/standard/test_cluster.py
• tests/integration/standard/test_control_connection_query_fallback.py
• tests/integration/standard/test_metrics.py
• tests/unit/advanced/test_insights.py
• tests/unit/test_cluster.py

💤 Files with no reviewable changes (9)

• cassandra/datastax/insights/init.py
• cassandra/datastax/insights/registry.py
• cassandra/datastax/insights/reporter.py
• pyproject.toml
• cassandra/datastax/insights/serializers.py
• cassandra/datastax/insights/util.py
• tests/unit/test_cluster.py
• tests/unit/advanced/test_insights.py
• tests/integration/standard/test_control_connection_query_fallback.py

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📝 Walkthrough

Walkthrough

The change removes DataStax Insights monitoring from Cluster and Session. It removes related public constructor parameters and attributes, reporter lifecycle handling, and Insights-specific logging. Hostname resolution keeps a local endpoint map for unresolved contact-point errors. The Insights registry, reporter, serializers, utilities, and tests are deleted. Setuptools no longer packages the Insights module. Existing test setups no longer pass the removed monitoring option.

Suggested reviewers: sylwiaszunejko

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title clearly and concisely describes the primary change: removal of Insights support.
Description check	✅ Passed	The description explains the motivation, changes, retained features, and test results, but it omits the repository checklist and Fixes annotation.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

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