| /** |
| * 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.timeline; |
| |
| import org.apache.commons.logging.Log; |
| import org.apache.commons.logging.LogFactory; |
| import org.apache.hadoop.conf.Configuration; |
| import org.apache.hadoop.metrics2.host.aggregator.TimelineMetricsHolder; |
| |
| import java.util.Collection; |
| import java.util.Map; |
| |
| /** |
| * Abstract class that runs a thread that publishes metrics data to AMS collector in specified intervals. |
| */ |
| public abstract class AbstractMetricPublisher extends AbstractTimelineMetricsSink implements Runnable { |
| |
| private static final String AMS_SITE_SSL_TRUSTSTORE_PATH_PROPERTY = "ssl.server.truststore.location"; |
| private static final String AMS_SITE_SSL_TRUSTSTORE_TYPE_PROPERTY = "ssl.server.truststore.type"; |
| private static final String AMS_SITE_SSL_TRUSTSTORE_PASSWORD_PROPERTY = "ssl.server.truststore.password"; |
| private static final String AMS_SITE_HTTP_POLICY_PROPERTY = "timeline.metrics.service.http.policy"; |
| private static final String AMS_SITE_COLLECTOR_WEBAPP_ADDRESS_PROPERTY = "timeline.metrics.service.webapp.address"; |
| private static final String PUBLISHER_COLLECTOR_HOSTS_PROPERTY = "timeline.metrics.collector.hosts"; |
| private static final String PUBLISHER_ZOOKEEPER_QUORUM_PROPERTY = "timeline.metrics.zk.quorum"; |
| private static final String PUBLISHER_HOSTNAME_PROPERTY = "timeline.metrics.hostname"; |
| protected static String BASE_POST_URL = "%s://%s:%s/ws/v1/timeline/metrics"; |
| protected int publishIntervalInSeconds; |
| private Log LOG; |
| protected TimelineMetricsHolder timelineMetricsHolder; |
| protected Configuration configuration; |
| private String collectorProtocol; |
| private String collectorPort; |
| private Collection<String> collectorHosts; |
| private String hostname; |
| private String zkQuorum; |
| |
| public AbstractMetricPublisher(TimelineMetricsHolder timelineMetricsHolder, Configuration configuration, int publishIntervalInSeconds) { |
| LOG = LogFactory.getLog(this.getClass()); |
| this.configuration = configuration; |
| this.publishIntervalInSeconds = publishIntervalInSeconds; |
| this.timelineMetricsHolder = timelineMetricsHolder; |
| configure(); |
| } |
| |
| protected void configure() { |
| collectorProtocol = configuration.get(AMS_SITE_HTTP_POLICY_PROPERTY, "HTTP_ONLY").equalsIgnoreCase("HTTP_ONLY") ? "http" : "https"; |
| collectorPort = configuration.getTrimmed(AMS_SITE_COLLECTOR_WEBAPP_ADDRESS_PROPERTY, "0.0.0.0:6188").split(":")[1]; |
| collectorHosts = parseHostsStringIntoCollection(configuration.getTrimmed(PUBLISHER_COLLECTOR_HOSTS_PROPERTY, "")); |
| zkQuorum = configuration.get(PUBLISHER_ZOOKEEPER_QUORUM_PROPERTY, ""); |
| hostname = configuration.get(PUBLISHER_HOSTNAME_PROPERTY, "localhost"); |
| collectorHosts = parseHostsStringIntoCollection(configuration.get(PUBLISHER_COLLECTOR_HOSTS_PROPERTY, "")); |
| if (collectorHosts.isEmpty()) { |
| LOG.error("No Metric collector configured."); |
| } else { |
| if (collectorProtocol.contains("https")) { |
| String trustStorePath = configuration.get(AMS_SITE_SSL_TRUSTSTORE_PATH_PROPERTY).trim(); |
| String trustStoreType = configuration.get(AMS_SITE_SSL_TRUSTSTORE_TYPE_PROPERTY).trim(); |
| String trustStorePwd = configuration.get(AMS_SITE_SSL_TRUSTSTORE_PASSWORD_PROPERTY).trim(); |
| loadTruststore(trustStorePath, trustStoreType, trustStorePwd); |
| } |
| } |
| } |
| |
| /** |
| * Publishes metrics to collector in specified intervals while not interrupted. |
| */ |
| @Override |
| public void run() { |
| while (!Thread.currentThread().isInterrupted()) { |
| try { |
| Thread.sleep(this.publishIntervalInSeconds * 1000); |
| } catch (InterruptedException e) { |
| //Ignore |
| } |
| try { |
| processAndPublishMetrics(getMetricsFromCache()); |
| } catch (Exception e) { |
| //ignore |
| } |
| } |
| } |
| |
| /** |
| * Processes and sends metrics to collector. |
| * @param metricsFromCache |
| * @throws Exception |
| */ |
| protected void processAndPublishMetrics(Map<String, TimelineMetrics> metricsFromCache) throws Exception { |
| if (metricsFromCache.size()==0) return; |
| |
| LOG.info(String.format("Preparing %s timeline metrics for publishing", metricsFromCache.size())); |
| emitMetricsJson(getCollectorUri(getCurrentCollectorHost()), processMetrics(metricsFromCache)); |
| } |
| |
| /** |
| * Returns metrics map. Source is based on implementation. |
| * @return |
| */ |
| protected abstract Map<String,TimelineMetrics> getMetricsFromCache(); |
| |
| /** |
| * Processes given metrics (aggregates or merges them) and converts them into json string that will be send to collector |
| * @param metricValues |
| * @return |
| */ |
| protected abstract String processMetrics(Map<String, TimelineMetrics> metricValues); |
| |
| protected abstract String getPostUrl(); |
| |
| @Override |
| protected String getCollectorUri(String host) { |
| return String.format(getPostUrl(), getCollectorProtocol(), host, getCollectorPort()); |
| } |
| |
| @Override |
| protected String getCollectorProtocol() { |
| return collectorProtocol; |
| } |
| |
| @Override |
| protected String getCollectorPort() { |
| return collectorPort; |
| } |
| |
| @Override |
| protected int getTimeoutSeconds() { |
| return DEFAULT_POST_TIMEOUT_SECONDS; |
| } |
| |
| @Override |
| protected String getZookeeperQuorum() { |
| return zkQuorum; |
| } |
| |
| @Override |
| protected Collection<String> getConfiguredCollectorHosts() { |
| return collectorHosts; |
| } |
| |
| @Override |
| protected String getHostname() { |
| return hostname; |
| } |
| |
| @Override |
| protected boolean isHostInMemoryAggregationEnabled() { |
| return false; |
| } |
| |
| @Override |
| protected int getHostInMemoryAggregationPort() { |
| return 0; |
| } |
| } |