feat(cleanup): Disable statement timeout for long-running cleanup queries

[jasonyuezhang]

Fixes SENTRY-FOR-SENTRY-7PYE. The issue was that: Cleanup query failed due to short database statement timeout, which was not overridden for the long-running task.

• Introduces a context manager unset_statement_timeout to temporarily disable the statement timeout for PostgreSQL connections.
• Wraps the batch processing loop in ModelDeletionTask.get_objects_to_delete with the unset_statement_timeout context manager to prevent timeouts during long-running cleanup queries.

This fix was generated by Seer in Sentry, triggered by [email protected]. 👁️ Run ID: 117

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Copied from getsentry#101081
Original PR: getsentry#101081

[propel-test-bot]

Disable Database Statement Timeout During Long-Running Cleanup Queries

This pull request addresses an issue where long-running cleanup queries could fail due to the default PostgreSQL statement_timeout. It introduces a context manager unset_statement_timeout to temporarily disable the timeout for PostgreSQL connections, and modifies the cleanup batching logic in the deletion component to use this context so that lengthy cleanup tasks complete without premature termination.

Key Changes

• Added the context manager unset_statement_timeout to src/sentry/db/postgres/transactions.py for temporarily setting PostgreSQL's statement_timeout to 0 (unlimited) and restoring it after use.
• Updated the import logic in src/sentry/db/deletion.py to use unset_statement_timeout.
• Modified the batching loop in BulkDeleteQuery.iterator within src/sentry/db/deletion.py to wrap batch deletions with the new timeout-disabling context manager.
• Ensures original timeout value is restored after batch operation completes, and applies logic only for PostgreSQL connections.

Affected Areas

• src/sentry/db/postgres/transactions.py
• src/sentry/db/deletion.py

This summary was automatically generated by @propel-code-bot