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enh: Do not wait for transfer completion for each fetch #63

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enh: Do not wait for transfer completion for each fetch #63

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4 changes: 2 additions & 2 deletions mars/services/storage/handler.py
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Original file line number Diff line number Diff line change
Expand Up @@ -547,7 +547,7 @@ async def fetch_batch(
)
fetch_keys.extend(list(keys))

await asyncio.gather(*transfer_tasks)
yield asyncio.gather(*transfer_tasks)

append_bands_delays = []
for data_key in fetch_keys:
Expand All @@ -562,7 +562,7 @@ async def fetch_batch(
)
if append_bands_delays:
await meta_api.add_chunk_bands.batch(*append_bands_delays)
return fetch_keys
raise mo.Return(fetch_keys)

async def request_quota_with_spill(self, level: StorageLevel, size: int):
if await self._quota_refs[level].request_quota(size):
Expand Down