| # Licensed to the Apache Software Foundation (ASF) under one |
| # or more contributor license agreements. See the NOTICE file |
| # distributed with this work for additional information |
| # regarding copyright ownership. The ASF licenses this file |
| # to you under the Apache License, Version 2.0 (the |
| # "License"); you may not use this file except in compliance |
| # with the License. You may obtain a copy of the License at |
| # |
| # http://www.apache.org/licenses/LICENSE-2.0 |
| # |
| # Unless required by applicable law or agreed to in writing, |
| # software distributed under the License is distributed on an |
| # "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| # KIND, either express or implied. See the License for the |
| # specific language governing permissions and limitations |
| # under the License. |
| |
| from tests.common.impala_test_suite import ImpalaTestSuite |
| |
| |
| class TestJvmMetrics(ImpalaTestSuite): |
| """Class for checking JVM Metrics.""" |
| |
| def test_jvm_metrics(self): |
| """The following metrics should exist and come from the JVM.""" |
| impalad = self.impalad_test_service |
| # These metrics can't possibly be zero, so we assert that |
| # they're positive. |
| NON_ZERO_METRICS = [ |
| "jvm.heap.current-usage-bytes", |
| "jvm.heap.max-usage-bytes", |
| "jvm.non-heap.committed-usage-bytes", |
| "jvm.total.current-usage-bytes", |
| ] |
| for m in NON_ZERO_METRICS: |
| assert impalad.get_metric_value(m) > 0 |
| |
| # One can imagine somehow there being no GCs, so do |
| # a weaker assertion that they're non-negative and non-None. |
| for m in ["jvm.gc_count", "jvm.gc_time_millis"]: |
| assert impalad.get_metric_value(m) >= 0 |