| /* |
| * 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.fs.s3a; |
| |
| import org.apache.hadoop.fs.Path; |
| import org.apache.hadoop.fs.contract.ContractTestUtils; |
| import org.apache.hadoop.metrics2.lib.MutableCounterLong; |
| import org.junit.Test; |
| |
| import java.io.IOException; |
| import java.io.InputStream; |
| |
| /** |
| * Test s3a performance metrics register and output. |
| */ |
| public class ITestS3AMetrics extends AbstractS3ATestBase { |
| |
| @Test |
| public void testMetricsRegister() |
| throws IOException, InterruptedException { |
| S3AFileSystem fs = getFileSystem(); |
| Path dest = path("testMetricsRegister"); |
| ContractTestUtils.touch(fs, dest); |
| |
| MutableCounterLong fileCreated = |
| (MutableCounterLong) fs.getInstrumentation().getRegistry() |
| .get(Statistic.FILES_CREATED.getSymbol()); |
| assertEquals("Metrics system should report single file created event", |
| 1, fileCreated.value()); |
| } |
| |
| @Test |
| public void testStreamStatistics() throws IOException { |
| S3AFileSystem fs = getFileSystem(); |
| Path file = path("testStreamStatistics"); |
| byte[] data = "abcdefghijklmnopqrstuvwxyz".getBytes(); |
| ContractTestUtils.createFile(fs, file, false, data); |
| |
| try (InputStream inputStream = fs.open(file)) { |
| while (inputStream.read(data) != -1) { |
| LOG.debug("Read batch of data from input stream..."); |
| } |
| } |
| |
| MutableCounterLong read = (MutableCounterLong) |
| fs.getInstrumentation().getRegistry() |
| .get(Statistic.STREAM_SEEK_BYTES_READ.getSymbol()); |
| assertEquals("Stream statistics were not merged", 26, read.value()); |
| } |
| |
| |
| } |