78 lines
2.6 KiB
Python
78 lines
2.6 KiB
Python
#
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# Copyright (c) 2022 Airbyte, Inc., all rights reserved.
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#
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import logging
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import sys
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import time
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from typing import Optional
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import backoff
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from requests import codes, exceptions
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from .exceptions import DefaultBackoffException, UserDefinedBackoffException
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TRANSIENT_EXCEPTIONS = (
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DefaultBackoffException,
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exceptions.ConnectTimeout,
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exceptions.ReadTimeout,
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exceptions.ConnectionError,
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exceptions.ChunkedEncodingError,
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)
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logger = logging.getLogger("airbyte")
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def default_backoff_handler(max_tries: Optional[int], factor: float, **kwargs):
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def log_retry_attempt(details):
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_, exc, _ = sys.exc_info()
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if exc.response:
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logger.info(f"Status code: {exc.response.status_code}, Response Content: {exc.response.content}")
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logger.info(
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f"Caught retryable error '{str(exc)}' after {details['tries']} tries. Waiting {details['wait']} seconds then retrying..."
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)
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def should_give_up(exc):
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# If a non-rate-limiting related 4XX error makes it this far, it means it was unexpected and probably consistent, so we shouldn't back off
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give_up = exc.response is not None and exc.response.status_code != codes.too_many_requests and 400 <= exc.response.status_code < 500
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if give_up:
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logger.info(f"Giving up for returned HTTP status: {exc.response.status_code}")
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return give_up
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return backoff.on_exception(
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backoff.expo,
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TRANSIENT_EXCEPTIONS,
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jitter=None,
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on_backoff=log_retry_attempt,
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giveup=should_give_up,
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max_tries=max_tries,
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factor=factor,
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**kwargs,
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)
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def user_defined_backoff_handler(max_tries: Optional[int], **kwargs):
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def sleep_on_ratelimit(details):
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_, exc, _ = sys.exc_info()
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if isinstance(exc, UserDefinedBackoffException):
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if exc.response:
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logger.info(f"Status code: {exc.response.status_code}, Response Content: {exc.response.content}")
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retry_after = exc.backoff
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logger.info(f"Retrying. Sleeping for {retry_after} seconds")
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time.sleep(retry_after + 1) # extra second to cover any fractions of second
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def log_give_up(details):
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_, exc, _ = sys.exc_info()
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logger.error(f"Max retry limit reached. Request: {exc.request}, Response: {exc.response}")
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return backoff.on_exception(
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backoff.constant,
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UserDefinedBackoffException,
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interval=0, # skip waiting, we'll wait in on_backoff handler
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on_backoff=sleep_on_ratelimit,
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on_giveup=log_give_up,
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jitter=None,
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max_tries=max_tries,
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**kwargs,
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)
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