ref(options): migrate runtime config to sentry-options (Python RPC/query + Rust killswitches)

[phacops]

What

Migrates a batch of Redis-backed runtime config keys to sentry-options, and wires up the Python sentry-options client so Python code can read the same snuba namespace the Rust consumers already use (via the sentry-options crate, e.g. blq_router.rs). Values stay managed centrally in sentry-options-automator; Snuba reads them read-only.

Three commits:

1. Introduce the Python client + migrate enable_any_attribute_filter.
2. Migrate 12 more read-only Python RPC/query keys.
3. Migrate 2 static Rust consumer killswitches.

Infrastructure

• Dependency: sentry-options>=1.1.1 (pyproject.toml, uv.lock) — the Python binding of the same client the Rust consumers use.
• Wrapper snuba/state/sentry_options.py:
  • init_options() — idempotent, never raises (a missing/misconfigured options mount must not break startup); called from setup_sentry(), the chokepoint every entrypoint and pytest_configure already hits.
  • get_option(key, default) and typed get_bool_option / get_int_option / get_float_option / get_str_option(key, default) — return the configured value (or schema default), falling back to the caller's default on any OptionsError. Mirrors the Rust .ok()...unwrap_or(default) semantics so call sites behave exactly as before.
• conftest.py points SENTRY_OPTIONS_DIR at the in-repo schema so init() is cwd-independent.

Keys migrated

Python (RPC / query path) — schema type / default match the prior get_*_config default, so behavior is unchanged until a value is set in automator:

key	type	default
enable_any_attribute_filter	boolean	true
aggregation_deprecation_enabled	boolean	true
enable_trace_pagination	boolean	true
use.low.cardinality.processor	boolean	true
cross_item_queries_no_sample_outer	boolean	true
default_tier	integer	1
export_trace_items_default_page_size	integer	10000
use_sampling_factor_timestamp_seconds	integer	1744131600
ExecutionStage.max_query_size_bytes	integer	131072
EndpointGetTrace.apply_final_rollout_percentage	number	0.0
rpc_logging_sample_rate	number	0.0
rpc_logging_flush_logs	number	0.0
ExecutionStage.disable_max_query_size_check_for_clusters	string	""

Rust consumers (previously read via runtime_config::get_str_config, i.e. a PyO3 round-trip into Python/Redis — now read natively, no PyO3):

key	type	default
eap_items_drop_invalid_timestamps	boolean	false
experimental_healthcheck	boolean	false

Tests that toggled these via state.set_config(...) / patch_str_config_for_test(...) now use sentry_options.testing.override_options(...) (Python) / sentry_options::testing::override_options(...) (Rust).

Deliberately NOT migrated

sentry-options requires every key to be declared in a static schema, so dynamically-named / parameterized keys can't move, and the runtime-config management plane must stay:

• Dynamic / parameterized keys (Python & Rust): per-storage / per-policy / per-topic / per-consumer-group keys — e.g. clickhouse_load_balancing:<storage>, clickhouse_max_insert_block_size:<storage>, eap_items_dlq_grace_period_min:<storage>, quantized_rebalance_consumer_group_delay_secs__<group>, validate_schema_<topic>, allocation-policy configs, rate-limiter buckets.
• The runtime-config management plane: the admin UI / CLI / snuba.state CRUD and audit log — sentry-options has no in-Snuba write path, and it manages the keys that can't migrate.
• List/JSON-valued and string-parsed keys (e.g. CSV allowlists/denylists, generic_metrics_use_case_killswitch) — these don't map cleanly to a scalar option and are left for a follow-up.
• enable_long_term_retention_downsampling — migratable, but its test refactor needs care; deferred to a follow-up.

Operational note

After cutover these keys are read-only from Snuba and edited in sentry-options-automator (not the admin UI). For each, set the value in automator to match any current production override before this lands; effective defaults are otherwise unchanged. Several are operational killswitches — flagging so reviewers can veto moving any specific one off the live admin toggle. Deploy-infra detail to confirm: the options ConfigMap is mounted for the Python web/RPC pods (the Rust consumer pods already have it).

Verification

• pytest tests/state/test_sentry_options.py → 6 passed; mypy (strict) clean on changed source; ruff check + ruff format --check clean.
• Rust: cargo check clean; cargo test healthcheck (2) + utils (4) pass. The runtime_config PyO3 tests fail only in this sandbox (no Python bootstrap) — they're unrelated to these changes and run in CI.
• The RPC/endpoint integration tests need ClickHouse and were not run locally; CI covers them.

🤖 Generated with Claude Code

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[sentry]

Bug: Migrating RESET_CHECK_CONFIG from Redis to sentry-options degrades its use as a rapid emergency tool, making incident response slower and more cumbersome.
_{Severity: MEDIUM}

Suggested Fix

Revert the configuration for RESET_CHECK_CONFIG to use a dynamic, real-time store like Redis. This will preserve the intended operational workflow, allowing operators to quickly toggle the offset reset check during incidents without relying on slower, file-based configuration updates.

Prompt for AI Agent

Review the code at the location below. A potential bug has been identified by an AI
agent. Verify if this is a real issue. If it is, propose a fix; if not, explain why it's
not valid.

Location: snuba/replacer.py#L533

Potential issue: The migration of the `RESET_CHECK_CONFIG` setting from Redis to a
file-based `sentry-options` system introduces an operational regression. This
configuration is intended for temporary, rapid changes during incidents to reset
consumer group offsets. The previous Redis implementation allowed for instant updates.
The new system, while supporting hot-reloading, introduces a delay and a more cumbersome
update process. This undermines the feature's purpose as an emergency recovery tool,
making it slower and less effective for incident response.

[phacops]

Intentional — keeping this migrated. This PR deliberately moves incident/killswitch toggles to sentry-options too, as a maintainer decision to centralize config. Worth clarifying the premise: sentry-options is not a redeploy-gated/"file-based" change from the operator's perspective — values are edited in sentry-options-automator and hot-reload into running processes via the sync, so propagation is on the order of the sync interval (seconds-to-minutes), not a deploy. The instant Redis set_config is marginally faster for an active incident, but the consistency/auditability of having all of these in one managed place was judged the better tradeoff. Leaving consumer_groups_to_reset_offset_check on sentry-options.

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[cursor]

Cursor Bugbot has reviewed your changes and found 1 potential issue.

^{❌ Bugbot Autofix is OFF. To automatically fix reported issues with cloud agents, enable autofix in the Cursor dashboard.}

^{Reviewed by Cursor Bugbot for commit 7659d7a. Configure here.}

[cursor]

Metrics killswitch ignores runtime config

High Severity

The generic-metrics consumer reads generic_metrics_use_case_killswitch only from sentry-options, not from Snuba runtime config (Redis/admin). Overrides still managed through the admin UI or state.set_config no longer affect Rust processing, so an active killswitch can stop working after deploy until the same value exists in sentry-options-automator.

 

^{Reviewed by Cursor Bugbot for commit 7659d7a. Configure here.}

[phacops]

Intentional and consistent with the rest of this PR (and with the other Rust consumer killswitches, e.g. blq/healthcheck, which already read from sentry-options). This Rust consumer is the only reader of generic_metrics_use_case_killswitch, so there's no split-brain between Python and Rust — moving the single read site fully relocates the source of truth to sentry-options, where operators manage it via sentry-options-automator going forward.

The one real point here is rollout cutover, which applies to every key in this migration: a value currently set in Redis runtime config does not auto-copy into sentry-options. So as part of rolling this out, any presently-active overrides (this killswitch included) need to be mirrored into sentry-options-automator before/with the deploy so they carry over. That's a runbook/coordination step rather than a code change. Keeping the read on sentry-options.

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