| /* |
| * 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. |
| */ |
| |
| package org.apache.hadoop.metrics2.sink; |
| |
| import org.apache.hadoop.fs.FileUtil; |
| import org.apache.hadoop.metrics2.MetricsSystem; |
| |
| import org.junit.Test; |
| import static org.junit.Assert.assertFalse; |
| import static org.junit.Assert.assertTrue; |
| |
| /** |
| * Test the {@link RollingFileSystemSink} class in the context of the local file |
| * system. |
| */ |
| public class TestRollingFileSystemSinkWithLocal |
| extends RollingFileSystemSinkTestBase { |
| /** |
| * Test writing logs to the local file system. |
| * @throws Exception when things break |
| */ |
| @Test |
| public void testWrite() throws Exception { |
| String path = methodDir.toURI().toString(); |
| MetricsSystem ms = initMetricsSystem(path, false, false); |
| |
| assertMetricsContents(doWriteTest(ms, path, 1)); |
| } |
| |
| /** |
| * Test writing logs to the local file system with the sink set to ignore |
| * errors. |
| * @throws Exception when things break |
| */ |
| @Test |
| public void testSilentWrite() throws Exception { |
| String path = methodDir.toURI().toString(); |
| MetricsSystem ms = initMetricsSystem(path, true, false); |
| |
| assertMetricsContents(doWriteTest(ms, path, 1)); |
| } |
| |
| /** |
| * Test writing logs to HDFS when the log file already exists. |
| * |
| * @throws Exception when things break |
| */ |
| @Test |
| public void testExistingWrite() throws Exception { |
| String path = methodDir.toURI().toString(); |
| |
| assertMetricsContents(doAppendTest(path, false, false, 2)); |
| } |
| |
| /** |
| * Test writing logs to HDFS when the log file and the .1 log file already |
| * exist. |
| * |
| * @throws Exception when things break |
| */ |
| @Test |
| public void testExistingWrite2() throws Exception { |
| String path = methodDir.toURI().toString(); |
| MetricsSystem ms = initMetricsSystem(path, false, false); |
| |
| preCreateLogFile(path, 2); |
| |
| assertMetricsContents(doWriteTest(ms, path, 3)); |
| } |
| |
| /** |
| * Test writing logs to HDFS with ignore errors enabled when |
| * the log file already exists. |
| * |
| * @throws Exception when things break |
| */ |
| @Test |
| public void testSilentExistingWrite() throws Exception { |
| String path = methodDir.toURI().toString(); |
| |
| assertMetricsContents(doAppendTest(path, false, false, 2)); |
| } |
| |
| /** |
| * Test that writing fails when the directory isn't writable. |
| */ |
| @Test |
| public void testFailedWrite() { |
| String path = methodDir.toURI().toString(); |
| MetricsSystem ms = initMetricsSystem(path, false, false); |
| |
| new MyMetrics1().registerWith(ms); |
| |
| assertTrue(FileUtil.setWritable(methodDir, false)); |
| MockSink.errored = false; |
| |
| try { |
| // publish the metrics |
| ms.publishMetricsNow(); |
| |
| assertTrue("No exception was generated while writing metrics " |
| + "even though the target directory was not writable", |
| MockSink.errored); |
| |
| ms.stop(); |
| ms.shutdown(); |
| } finally { |
| // Make sure the dir is writable again so we can delete it at the end |
| methodDir.setWritable(true); |
| } |
| } |
| |
| /** |
| * Test that writing fails silently when the directory is not writable. |
| */ |
| @Test |
| public void testSilentFailedWrite() { |
| String path = methodDir.toURI().toString(); |
| MetricsSystem ms = initMetricsSystem(path, true, false); |
| |
| new MyMetrics1().registerWith(ms); |
| |
| assertTrue(FileUtil.setWritable(methodDir, false)); |
| MockSink.errored = false; |
| |
| try { |
| // publish the metrics |
| ms.publishMetricsNow(); |
| |
| assertFalse("An exception was generated while writing metrics " |
| + "when the target directory was not writable, even though the " |
| + "sink is set to ignore errors", |
| MockSink.errored); |
| |
| ms.stop(); |
| ms.shutdown(); |
| } finally { |
| // Make sure the dir is writable again so we can delete it at the end |
| methodDir.setWritable(true); |
| } |
| } |
| } |