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https://issues.apache.org/jira/browse/FLINK-10633?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16673248#comment-16673248
]
ASF GitHub Bot commented on FLINK-10633:
----------------------------------------
kl0u commented on a change in pull request #7003: [FLINK-10633][prometheus] Add
E2E test
URL: https://github.com/apache/flink/pull/7003#discussion_r230408436
##########
File path:
flink-end-to-end-tests/flink-end-to-end-tests-common/src/main/java/org/apache/flink/tests/util/FlinkDistribution.java
##########
@@ -0,0 +1,219 @@
+/*
+ * 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.flink.tests.util;
+
+import org.apache.flink.configuration.Configuration;
+import org.apache.flink.configuration.GlobalConfiguration;
+import org.apache.flink.configuration.UnmodifiableConfiguration;
+import org.apache.flink.util.ExceptionUtils;
+
+import
org.apache.flink.shaded.jackson2.com.fasterxml.jackson.databind.JsonNode;
+import
org.apache.flink.shaded.jackson2.com.fasterxml.jackson.databind.ObjectMapper;
+
+import okhttp3.OkHttpClient;
+import okhttp3.Request;
+import okhttp3.Response;
+import org.junit.Assert;
+import org.junit.rules.ExternalResource;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import java.io.BufferedReader;
+import java.io.FileInputStream;
+import java.io.FileNotFoundException;
+import java.io.IOException;
+import java.io.InputStreamReader;
+import java.nio.charset.StandardCharsets;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.nio.file.Paths;
+import java.nio.file.StandardCopyOption;
+import java.util.ArrayList;
+import java.util.Iterator;
+import java.util.List;
+import java.util.Optional;
+import java.util.function.Function;
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+import java.util.stream.Collectors;
+import java.util.stream.Stream;
+
+/**
+ * A wrapper around a Flink distribution.
+ */
+public final class FlinkDistribution extends ExternalResource {
+
+ private static final Logger LOG =
LoggerFactory.getLogger(FlinkDistribution.class);
+
+ private static final ObjectMapper OBJECT_MAPPER = new ObjectMapper();
+
+ private final List<AutoClosablePath> filesToDelete = new ArrayList<>(4);
+
+ private static final Path FLINK_CONF_YAML =
Paths.get("flink-conf.yaml");
+ private static final Path FLINK_CONF_YAML_BACKUP =
Paths.get("flink-conf.yaml.bak");
+
+ private final Path opt;
+ private final Path lib;
+ private final Path conf;
+ private final Path log;
+ private final Path bin;
+
+ private Configuration defaultConfig;
+
+ public FlinkDistribution() {
+ final String distDirProperty = System.getProperty("distDir");
+ if (distDirProperty == null) {
+ Assert.fail("The distDir property was not set. You can
set it when running maven via -DdistDir=<path> .");
+ }
+ final Path flinkDir = Paths.get(distDirProperty);
+ bin = flinkDir.resolve("bin");
+ opt = flinkDir.resolve("opt");
+ lib = flinkDir.resolve("lib");
+ conf = flinkDir.resolve("conf");
+ log = flinkDir.resolve("log");
+ }
+
+ @Override
+ protected void before() throws IOException {
+ defaultConfig = new
UnmodifiableConfiguration(GlobalConfiguration.loadConfiguration(conf.toAbsolutePath().toString()));
+ final Path originalConfig = conf.resolve(FLINK_CONF_YAML);
+ final Path backupConfig = conf.resolve(FLINK_CONF_YAML_BACKUP);
+ Files.copy(originalConfig, backupConfig);
+ filesToDelete.add(new AutoClosablePath(backupConfig));
+ }
+
+ @Override
+ protected void after() {
+ try {
+ stopFlinkCluster();
+ } catch (IOException e) {
+ LOG.error("Failure while shutting down Flink cluster.",
e);
+ }
+
+ final Path originalConfig = conf.resolve(FLINK_CONF_YAML);
+ final Path backupConfig = conf.resolve(FLINK_CONF_YAML_BACKUP);
+
+ try {
+ Files.move(backupConfig, originalConfig,
StandardCopyOption.REPLACE_EXISTING);
+ } catch (IOException e) {
+ LOG.error("Failed to restore flink-conf.yaml", e);
+ }
+
+ for (AutoCloseable fileToDelete : filesToDelete) {
+ try {
+ fileToDelete.close();
+ } catch (Exception e) {
+ LOG.error("Failure while cleaning up file.", e);
+ }
+ }
+ }
+
+ public void startFlinkCluster() throws IOException {
+ AutoClosableProcess.runBlocking("Start Flink cluster",
bin.resolve("start-cluster.sh").toAbsolutePath().toString());
+
+ final OkHttpClient client = new OkHttpClient();
+
+ final Request request = new Request.Builder()
+ .get()
+ .url("http://localhost:8081/taskmanagers";)
+ .build();
+
+ Exception reportedException = null;
+ for (int x = 0; x < 30; x++) {
+ try (Response response =
client.newCall(request).execute()) {
Review comment:
Should we wait here for all Task Managers to be up before reporting that the
cluster is up and running? This can also be a future JIRA though.
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> End-to-end test: Prometheus reporter
> ------------------------------------
>
> Key: FLINK-10633
> URL: https://issues.apache.org/jira/browse/FLINK-10633
> Project: Flink
> Issue Type: Sub-task
> Components: E2E Tests
> Affects Versions: 1.7.0
> Reporter: Till Rohrmann
> Assignee: Chesnay Schepler
> Priority: Major
> Labels: pull-request-available
> Fix For: 1.7.0
>
>
> Add an end-to-end test using the {{PrometheusReporter}} to verify that all
> metrics are properly reported. Additionally verify that the newly introduce
> RocksDB metrics are accessible (see FLINK-10423).
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