67 lines
2.3 KiB
Python
67 lines
2.3 KiB
Python
#
|
|
# Copyright (c) 2021 Airbyte, Inc., all rights reserved.
|
|
#
|
|
|
|
|
|
import sys
|
|
import time
|
|
|
|
import backoff
|
|
from base_python.cdk.streams.exceptions import DefaultBackoffException, UserDefinedBackoffException
|
|
from base_python.logger import AirbyteLogger
|
|
from requests import codes, exceptions
|
|
|
|
TRANSIENT_EXCEPTIONS = (DefaultBackoffException, exceptions.ConnectTimeout, exceptions.ReadTimeout, exceptions.ConnectionError)
|
|
|
|
# TODO inject singleton logger?
|
|
logger = AirbyteLogger()
|
|
|
|
|
|
def default_backoff_handler(max_tries: int, factor: int, **kwargs):
|
|
def log_retry_attempt(details):
|
|
_, exc, _ = sys.exc_info()
|
|
logger.info(str(exc))
|
|
logger.info(f"Caught retryable error after {details['tries']} tries. Waiting {details['wait']} seconds then retrying...")
|
|
|
|
def should_give_up(exc):
|
|
# 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
|
|
give_up = exc.response is not None and exc.response.status_code != codes.too_many_requests and 400 <= exc.response.status_code < 500
|
|
if give_up:
|
|
logger.info(f"Giving up for returned HTTP status: {exc.response.status_code}")
|
|
return give_up
|
|
|
|
return backoff.on_exception(
|
|
backoff.expo,
|
|
TRANSIENT_EXCEPTIONS,
|
|
jitter=None,
|
|
on_backoff=log_retry_attempt,
|
|
giveup=should_give_up,
|
|
max_tries=max_tries,
|
|
factor=factor,
|
|
**kwargs,
|
|
)
|
|
|
|
|
|
def user_defined_backoff_handler(max_tries: int, **kwargs):
|
|
def sleep_on_ratelimit(details):
|
|
_, exc, _ = sys.exc_info()
|
|
if isinstance(exc, UserDefinedBackoffException):
|
|
retry_after = exc.backoff
|
|
logger.info(f"Retrying. Sleeping for {retry_after} seconds")
|
|
time.sleep(retry_after + 1) # extra second to cover any fractions of second
|
|
|
|
def log_give_up(details):
|
|
_, exc, _ = sys.exc_info()
|
|
logger.error(f"Max retry limit reached. Request: {exc.request}, Response: {exc.response}")
|
|
|
|
return backoff.on_exception(
|
|
backoff.constant,
|
|
UserDefinedBackoffException,
|
|
interval=0, # skip waiting, we'll wait in on_backoff handler
|
|
on_backoff=sleep_on_ratelimit,
|
|
on_giveup=log_give_up,
|
|
jitter=None,
|
|
max_tries=max_tries,
|
|
**kwargs,
|
|
)
|