[pull] master from ray-project:master#4057
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pull[bot] merged 2 commits intomiqdigital:masterfrom Apr 16, 2026
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## Description The streaming split pipeline (SplitCoordinator, OutputSplitter, StreamSplitDataIterator) has almost no observability, making it difficult to debug issues in production. This adds debug logging at key lifecycle points and a throttled dispatch log in the hot path. **SplitCoordinator:** - `__init__`: DEBUG log with `n` and `locality_hints` - `get()`: throttled DEBUG log with rows dispatched and prefetch bytes; DEBUG on epoch finish; WARNING on unexpected errors - `_barrier`: DEBUG on client arrival and epoch start; WARNING on executor creation failure - `shutdown_executor`: DEBUG log **StreamSplitDataIterator:** - `__init__`: DEBUG log with split index and world size - `gen_blocks`: DEBUG on epoch request/start/exhaustion; throttled DEBUG after yield (consumer resume) - `stats()`: DEBUG before remote call **OutputSplitter:** - `__init__`: DEBUG log with `n`, `equal`, `locality_hints`, `max_buffer_size` ## Related issues None. ## Additional information All hot-path logs (SplitCoordinator dispatch, consumer yield) are time-throttled to avoid log spam. Lifecycle logs (init, epoch transitions, shutdown) are not throttled since they are infrequent. --------- Signed-off-by: Balaji Veeramani <bveeramani@berkeley.edu>
…62616) sorted() returns a new sorted list instead of sorting in place. As a result, get_last_job() was returning an arbitrary job instead of the latest one. --------- Signed-off-by: Yicheng-Lu-llll <51814063+Yicheng-Lu-llll@users.noreply.github.com>
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