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fix(crawler): await inner stream aclose in arun_many (#2083) #2198

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fix(crawler): await inner stream aclose in arun_many (#2083) #2198

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13 changes: 9 additions & 4 deletions crawl4ai/async_webcrawler.py
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Original file line number Diff line number Diff line change
Expand Up @@ -1107,13 +1107,18 @@ async def maybe_release_session():

if stream:
async def result_transformer():
inner = dispatcher.run_urls_stream(
crawler=self, urls=urls, config=config
)
try:
async for task_result in dispatcher.run_urls_stream(
crawler=self, urls=urls, config=config
):
async for task_result in inner:
yield transform_result(task_result)
finally:
# Auto-release session after streaming completes
# Ensure the inner dispatcher stream is fully closed
# before releasing the session — otherwise cleanup of
# active crawl tasks may overlap with session teardown.
# (See #2083: arun_many stream closure leaks tasks.)
await inner.aclose()
await maybe_release_session()

return result_transformer()
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