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feat(global-index): add checkpoint cleanup by task id - #465
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Purpose
Global index builds remove checkpoints after successful completion, but a process crash can leave files behind. Add
GlobalIndexWriteTask::DeleteCheckpointto recursively remove all leftovers for a task once it is no longer running or being retried.Linked issue: #382
Tests
FileStorePathFactoryTest.*andGlobalIndexFileManagerTest.*:GlobalIndexTest.TestWriteLuminaIndexWithCheckpointAPI and Format
Add the public API:
GlobalIndexWriteTask::DeleteCheckpoint(table_path, task_id, options, file_system)Task IDs must be unique within a table.
Documentation
Add checkpoint cleanup usage and task ID requirements to the global index user guide.
Generative AI tooling
Generated-by: OpenAI Codex (GPT-6)