Read timed out during download sync

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Schwierigkeit
3/5
Geschätzter Aufwand
1-2 Tage
Anfängerfreundlichkeit
30/100
Issue-Typ
Bug
Klarheit
Größtenteils klar
Aktivitätsstatus
Veraltet
Tech-Stack
python
Bereich
cli, cloud

Rechercherichtung

The failure is a socket.timeout surfacing as urllib3.exceptions.ReadTimeoutError during a streamed download from f003.backblazeb2.com, triggered by b2 sync --threads 4. Start in the CLI's sync and download code path and check where timeouts and retries are configured for the HTTP session. Done means a long download survives a read timeout by retrying or by accepting a configurable timeout, with a test that simulates a stalled read.

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Beschreibung

bug enhancement help wanted

Trying to download around 7TB divided in 13 files, with about 1Gbps, however I had to restart it 3 times already because after a while it crashes with the following exception and ALL downloads are lost:

Traceback (most recent call last):
  File "urllib3/response.py", line 438, in _error_catcher
  File "urllib3/response.py", line 519, in read
  File "http/client.py", line 455, in read
  File "http/client.py", line 499, in readinto
  File "socket.py", line 704, in readinto
  File "ssl.py", line 1241, in recv_into
  File "ssl.py", line 1099, in read
socket.timeout: The read operation timed out

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "requests/models.py", line 753, in generate
  File "urllib3/response.py", line 576, in stream
  File "urllib3/response.py", line 541, in read
  File "contextlib.py", line 135, in __exit__
  File "urllib3/response.py", line 443, in _error_catcher
urllib3.exceptions.ReadTimeoutError: HTTPSConnectionPool(host='f003.backblazeb2.com', port=443): Read timed out.

I just used did b2 sync --threads 4 b://mybucket/.../ ./

Is it possible to increase the timeout, or just retry? ;-)

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Python
Sterne
638
Forks
138
Ø Merge
8 Std. 27 Min.
Gemergte PRs (30 T.)
8

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