def _retry_handler(self, response, i, next_sleep):
status = None
if response.status == 400:
response_body = response.read()
boto.log.debug(response_body)
data = json.loads(response_body)
if self.ThruputError in data.get('__type'):
self.throughput_exceeded_events += 1
msg = "%s, retry attempt %s" % (self.ThruputError, i)
if i == 0:
next_sleep = 0
else:
next_sleep = 0.05 * (2 ** i)
i += 1
status = (msg, i, next_sleep)
elif self.SessionExpiredError in data.get('__type'):
msg = 'Renewing Session Token'
self._get_session_token()
status = (msg, i + self.num_retries - 1, 0)
elif self.ConditionalCheckFailedError in data.get('__type'):
raise dynamodb_exceptions.DynamoDBConditionalCheckFailedError(
response.status, response.reason, data)
elif self.ValidationError in data.get('__type'):
raise dynamodb_exceptions.DynamoDBValidationError(
response.status, response.reason, data)
else:
raise self.ResponseError(response.status, response.reason,
data)
return status
def _retry_handler(self, response, i, next_sleep):
status = None
if response.status == 400:
response_body = response.read().decode('utf-8')
boto.log.debug(response_body)
data = json.loads(response_body)
if self.ThruputError in data.get('__type'):
self.throughput_exceeded_events += 1
msg = "%s, retry attempt %s" % (self.ThruputError, i)
next_sleep = self._exponential_time(i)
i += 1
status = (msg, i, next_sleep)
if i == self.NumberRetries:
# If this was our last retry attempt, raise
# a specific error saying that the throughput
# was exceeded.
raise dynamodb_exceptions.DynamoDBThroughputExceededError(
response.status, response.reason, data)
elif self.SessionExpiredError in data.get('__type'):
msg = 'Renewing Session Token'
self._get_session_token()
status = (msg, i + self.num_retries - 1, 0)
elif self.ConditionalCheckFailedError in data.get('__type'):
raise dynamodb_exceptions.DynamoDBConditionalCheckFailedError(
response.status, response.reason, data)
elif self.ValidationError in data.get('__type'):
raise dynamodb_exceptions.DynamoDBValidationError(
response.status, response.reason, data)
else:
raise self.ResponseError(response.status, response.reason,
data)
expected_crc32 = response.getheader('x-amz-crc32')
if self._validate_checksums and expected_crc32 is not None:
boto.log.debug('Validating crc32 checksum for body: %s',
response.read().decode('utf-8'))
actual_crc32 = crc32(response.read()) & 0xffffffff
expected_crc32 = int(expected_crc32)
if actual_crc32 != expected_crc32:
msg = ("The calculated checksum %s did not match the expected "
"checksum %s" % (actual_crc32, expected_crc32))
status = (msg, i + 1, self._exponential_time(i))
return status