samples.samples.backup_sample_test: test_create_backup failed

[flaky-bot]

Note: #264 was also for this test, but it was closed more than 10 days ago. So, I didn't mark it flaky.

---

commit: 7bddb81
buildURL: Build Status, Sponge
status: failed

Test output

target = functools.partial(>)
predicate = .if_exception_type_predicate at 0x7f1d178f5488>
sleep_generator = 
deadline = 1200, on_error = None
def retry_target(target, predicate, sleep_generator, deadline, on_error=None):
    """Call a function and retry if it fails.

    This is the lowest-level retry helper. Generally, you'll use the
    higher-level retry helper :class:`Retry`.

    Args:
        target(Callable): The function to call and retry. This must be a
            nullary function - apply arguments with `functools.partial`.
        predicate (Callable[Exception]): A callable used to determine if an
            exception raised by the target should be considered retryable.
            It should return True to retry or False otherwise.
        sleep_generator (Iterable[float]): An infinite iterator that determines
            how long to sleep between retries.
        deadline (float): How long to keep retrying the target. The last sleep
            period is shortened as necessary, so that the last retry runs at
            ``deadline`` (and not considerably beyond it).
        on_error (Callable[Exception]): A function to call while processing a
            retryable exception.  Any error raised by this function will *not*
            be caught.

    Returns:
        Any: the return value of the target function.

    Raises:
        google.api_core.RetryError: If the deadline is exceeded while retrying.
        ValueError: If the sleep generator stops yielding values.
        Exception: If the target raises a method that isn't retryable.
    """
    if deadline is not None:
        deadline_datetime = datetime_helpers.utcnow() + datetime.timedelta(
            seconds=deadline
        )
    else:
        deadline_datetime = None

    last_exc = None

    for sleep in sleep_generator:
        try:


          return target()


.nox/py-3-6/lib/python3.6/site-packages/google/api_core/retry.py:184:

self = <google.api_core.operation.Operation object at 0x7f1d17417e10>

retry = <google.api_core.retry.Retry object at 0x7f1d178f3940>
def _done_or_raise(self, retry=DEFAULT_RETRY):
    """Check if the future is done and raise if it's not."""
    kwargs = {} if retry is DEFAULT_RETRY else {"retry": retry}

    if not self.done(**kwargs):


      raise _OperationNotComplete()


E           google.api_core.future.polling._OperationNotComplete
.nox/py-3-6/lib/python3.6/site-packages/google/api_core/future/polling.py:86: _OperationNotComplete
The above exception was the direct cause of the following exception:
self = <google.api_core.operation.Operation object at 0x7f1d17417e10>

timeout = 1200, retry = <google.api_core.retry.Retry object at 0x7f1d178f3940>
def _blocking_poll(self, timeout=None, retry=DEFAULT_RETRY):
    """Poll and wait for the Future to be resolved.

    Args:
        timeout (int):
            How long (in seconds) to wait for the operation to complete.
            If None, wait indefinitely.
    """
    if self._result_set:
        return

    retry_ = self._retry.with_deadline(timeout)

    try:
        kwargs = {} if retry is DEFAULT_RETRY else {"retry": retry}


      retry_(self._done_or_raise)(**kwargs)


.nox/py-3-6/lib/python3.6/site-packages/google/api_core/future/polling.py:107:

args = (), kwargs = {}

target = functools.partial(<bound method PollingFuture._done_or_raise of <google.api_core.operation.Operation object at 0x7f1d17417e10>>)

sleep_generator = <generator object exponential_sleep_generator at 0x7f1d1748d728>
@general_helpers.wraps(func)
def retry_wrapped_func(*args, **kwargs):
    """A wrapper that calls target function with retry."""
    target = functools.partial(func, *args, **kwargs)
    sleep_generator = exponential_sleep_generator(
        self._initial, self._maximum, multiplier=self._multiplier
    )
    return retry_target(
        target,
        self._predicate,
        sleep_generator,
        self._deadline,


      on_error=on_error,


    )

.nox/py-3-6/lib/python3.6/site-packages/google/api_core/retry.py:286:

target = functools.partial(<bound method PollingFuture._done_or_raise of <google.api_core.operation.Operation object at 0x7f1d17417e10>>)

predicate = <function if_exception_type..if_exception_type_predicate at 0x7f1d178f5488>

sleep_generator = <generator object exponential_sleep_generator at 0x7f1d1748d728>

deadline = 1200, on_error = None
def retry_target(target, predicate, sleep_generator, deadline, on_error=None):
    """Call a function and retry if it fails.

    This is the lowest-level retry helper. Generally, you'll use the
    higher-level retry helper :class:`Retry`.

    Args:
        target(Callable): The function to call and retry. This must be a
            nullary function - apply arguments with `functools.partial`.
        predicate (Callable[Exception]): A callable used to determine if an
            exception raised by the target should be considered retryable.
            It should return True to retry or False otherwise.
        sleep_generator (Iterable[float]): An infinite iterator that determines
            how long to sleep between retries.
        deadline (float): How long to keep retrying the target. The last sleep
            period is shortened as necessary, so that the last retry runs at
            ``deadline`` (and not considerably beyond it).
        on_error (Callable[Exception]): A function to call while processing a
            retryable exception.  Any error raised by this function will *not*
            be caught.

    Returns:
        Any: the return value of the target function.

    Raises:
        google.api_core.RetryError: If the deadline is exceeded while retrying.
        ValueError: If the sleep generator stops yielding values.
        Exception: If the target raises a method that isn't retryable.
    """
    if deadline is not None:
        deadline_datetime = datetime_helpers.utcnow() + datetime.timedelta(
            seconds=deadline
        )
    else:
        deadline_datetime = None

    last_exc = None

    for sleep in sleep_generator:
        try:
            return target()

        # pylint: disable=broad-except
        # This function explicitly must deal with broad exceptions.
        except Exception as exc:
            if not predicate(exc):
                raise
            last_exc = exc
            if on_error is not None:
                on_error(exc)

        now = datetime_helpers.utcnow()

        if deadline_datetime is not None:
            if deadline_datetime <= now:
                six.raise_from(
                    exceptions.RetryError(
                        "Deadline of {:.1f}s exceeded while calling {}".format(
                            deadline, target
                        ),
                        last_exc,
                    ),


                  last_exc,


                )

.nox/py-3-6/lib/python3.6/site-packages/google/api_core/retry.py:206:

value = None, from_value = _OperationNotComplete()

???

E   google.api_core.exceptions.RetryError: Deadline of 1200.0s exceeded while calling functools.partial(<bound method PollingFuture._done_or_raise of <google.api_core.operation.Operation object at 0x7f1d17417e10>>), last exception:

:3: RetryError
During handling of the above exception, another exception occurred:
capsys = <_pytest.capture.CaptureFixture object at 0x7f1d1748fa90>

database = <google.cloud.spanner_v1.database.Database object at 0x7f1d174d4cc0>
def test_create_backup(capsys, database):
    version_time = None
    with database.snapshot() as snapshot:
        results = snapshot.execute_sql("SELECT CURRENT_TIMESTAMP()")
        version_time = list(results)[0][0]


  backup_sample.create_backup(INSTANCE_ID, DATABASE_ID, BACKUP_ID, version_time)


backup_sample_test.py:75:

backup_sample.py:41: in create_backup

operation.result(1200)

.nox/py-3-6/lib/python3.6/site-packages/google/api_core/future/polling.py:129: in result

self._blocking_poll(timeout=timeout, **kwargs)

self = <google.api_core.operation.Operation object at 0x7f1d17417e10>

timeout = 1200, retry = <google.api_core.retry.Retry object at 0x7f1d178f3940>
def _blocking_poll(self, timeout=None, retry=DEFAULT_RETRY):
    """Poll and wait for the Future to be resolved.

    Args:
        timeout (int):
            How long (in seconds) to wait for the operation to complete.
            If None, wait indefinitely.
    """
    if self._result_set:
        return

    retry_ = self._retry.with_deadline(timeout)

    try:
        kwargs = {} if retry is DEFAULT_RETRY else {"retry": retry}
        retry_(self._done_or_raise)(**kwargs)
    except exceptions.RetryError:
        raise concurrent.futures.TimeoutError(


          "Operation did not complete within the designated " "timeout."


        )

E           concurrent.futures._base.TimeoutError: Operation did not complete within the designated timeout.
.nox/py-3-6/lib/python3.6/site-packages/google/api_core/future/polling.py:110: TimeoutError

[flaky-bot]

Looks like this issue is flaky. 😟

I'm going to leave this open and stop commenting.

A human should fix and close this.

---

When run at the same commit (7bddb81), this test passed in one build (Build Status, Sponge) and failed in another build (Build Status, Sponge).

[larkee]

This is a known flake. The backup taking >20 minutes does not happen frequently (last flake related to timeout was #157 which was 6 months ago) so I am closing this.