Files
impala/tests/verifiers/test_verify_metrics.py
Joe McDonnell 82bd087fb1 IMPALA-11973: Add absolute_import, division to all eligible Python files
This takes steps to make Python 2 behave like Python 3 as
a way to flush out issues with running on Python 3. Specifically,
it handles two main differences:
 1. Python 3 requires absolute imports within packages. This
    can be emulated via "from __future__ import absolute_import"
 2. Python 3 changed division to "true" division that doesn't
    round to an integer. This can be emulated via
    "from __future__ import division"

This changes all Python files to add imports for absolute_import
and division. For completeness, this also includes print_function in the
import.

I scrutinized each old-division location and converted some locations
to use the integer division '//' operator if it needed an integer
result (e.g. for indices, counts of records, etc). Some code was also using
relative imports and needed to be adjusted to handle absolute_import.
This fixes all Pylint warnings about no-absolute-import and old-division,
and these warnings are now banned.

Testing:
 - Ran core tests

Change-Id: Idb0fcbd11f3e8791f5951c4944be44fb580e576b
Reviewed-on: http://gerrit.cloudera.org:8080/19588
Reviewed-by: Joe McDonnell <joemcdonnell@cloudera.com>
Tested-by: Joe McDonnell <joemcdonnell@cloudera.com>
2023-03-09 17:17:57 +00:00

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2.2 KiB
Python

# Licensed to the Apache Software Foundation (ASF) under one
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# to you under the Apache License, Version 2.0 (the
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# KIND, either express or implied. See the License for the
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#
# Verification of impalad metrics after a test run.
from __future__ import absolute_import, division, print_function
from tests.common.impala_test_suite import ImpalaTestSuite
from tests.common.impala_cluster import ImpalaCluster
from tests.verifiers.metric_verifier import MetricVerifier
class TestValidateMetrics(ImpalaTestSuite):
"""Verify metric values from the debug webpage.
This test suite must be run after all the tests have been run, and no
in-flight queries remain.
TODO: Add a test for local assignments.
"""
@classmethod
def setup_class(cls):
super(TestValidateMetrics, cls).setup_class()
# Close clients to make sure no sessions are held open by this test.
cls.close_impala_clients()
def test_metrics_are_zero(self):
"""Test that all the metric in METRIC_LIST are 0"""
verifier = MetricVerifier(self.impalad_test_service)
verifier.verify_metrics_are_zero()
def test_num_unused_buffers(self):
"""Test that all buffers are unused"""
verifier = MetricVerifier(self.impalad_test_service)
verifier.verify_num_unused_buffers()
def test_backends_are_idle(self):
"""Test that the backends state is in a valid state when quiesced - i.e.
no queries are running and the admission control state reflects that no
resources are used."""
for impalad in ImpalaCluster.get_e2e_test_cluster().impalads:
verifier = MetricVerifier(impalad.service)
verifier.wait_for_backend_admission_control_state()