| /** |
| * 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.ambari.metrics.core.timeline.aggregators; |
| |
| import java.io.IOException; |
| import java.sql.ResultSet; |
| import java.sql.SQLException; |
| import java.util.HashMap; |
| import java.util.Map; |
| |
| import org.apache.ambari.metrics.core.timeline.availability.MetricCollectorHAController; |
| import org.apache.ambari.metrics.core.timeline.discovery.TimelineMetricMetadataManager; |
| import org.apache.ambari.metrics.core.timeline.query.Condition; |
| import org.apache.ambari.metrics.core.timeline.query.DefaultCondition; |
| import org.apache.ambari.metrics.core.timeline.query.PhoenixTransactSQL; |
| import org.apache.commons.logging.Log; |
| import org.apache.commons.logging.LogFactory; |
| import org.apache.hadoop.conf.Configuration; |
| import org.apache.hadoop.metrics2.sink.timeline.MetricHostAggregate; |
| import org.apache.hadoop.metrics2.sink.timeline.TimelineMetric; |
| import org.apache.ambari.metrics.core.timeline.PhoenixHBaseAccessor; |
| import org.apache.ambari.metrics.core.timeline.availability.AggregationTaskRunner.AGGREGATOR_NAME; |
| |
| public class TimelineMetricHostAggregator extends AbstractTimelineAggregator { |
| private static final Log LOG = LogFactory.getLog(TimelineMetricHostAggregator.class); |
| TimelineMetricReadHelper readHelper; |
| |
| public TimelineMetricHostAggregator(AGGREGATOR_NAME aggregatorName, |
| TimelineMetricMetadataManager metricMetadataManager, |
| PhoenixHBaseAccessor hBaseAccessor, |
| Configuration metricsConf, |
| String checkpointLocation, |
| Long sleepIntervalMillis, |
| Integer checkpointCutOffMultiplier, |
| String hostAggregatorDisabledParam, |
| String tableName, |
| String outputTableName, |
| Long nativeTimeRangeDelay, |
| MetricCollectorHAController haController) { |
| super(aggregatorName, hBaseAccessor, metricsConf, checkpointLocation, |
| sleepIntervalMillis, checkpointCutOffMultiplier, hostAggregatorDisabledParam, |
| tableName, outputTableName, nativeTimeRangeDelay, haController); |
| readHelper = new TimelineMetricReadHelper(metricMetadataManager, false); |
| } |
| |
| @Override |
| protected void aggregate(ResultSet rs, long startTime, long endTime) throws IOException, SQLException { |
| |
| Map<TimelineMetric, MetricHostAggregate> hostAggregateMap = aggregateMetricsFromResultSet(rs, endTime); |
| |
| LOG.info("Saving " + hostAggregateMap.size() + " metric aggregates."); |
| hBaseAccessor.saveHostAggregateRecords(hostAggregateMap, outputTableName); |
| } |
| |
| @Override |
| protected Condition prepareMetricQueryCondition(long startTime, long endTime) { |
| Condition condition = new DefaultCondition(null, null, null, null, startTime, |
| endTime, null, null, true); |
| condition.setNoLimit(); |
| condition.setFetchSize(resultsetFetchSize); |
| condition.setStatement(String.format(PhoenixTransactSQL.GET_METRIC_AGGREGATE_ONLY_SQL, tableName)); |
| // Retaining order of the row-key avoids client side merge sort. |
| condition.addOrderByColumn("UUID"); |
| condition.addOrderByColumn("SERVER_TIME"); |
| return condition; |
| } |
| |
| private Map<TimelineMetric, MetricHostAggregate> aggregateMetricsFromResultSet(ResultSet rs, long endTime) |
| throws IOException, SQLException { |
| TimelineMetric existingMetric = null; |
| MetricHostAggregate hostAggregate = null; |
| Map<TimelineMetric, MetricHostAggregate> hostAggregateMap = new HashMap<TimelineMetric, MetricHostAggregate>(); |
| |
| |
| while (rs.next()) { |
| TimelineMetric currentMetric = |
| readHelper.getTimelineMetricKeyFromResultSet(rs); |
| MetricHostAggregate currentHostAggregate = |
| readHelper.getMetricHostAggregateFromResultSet(rs); |
| |
| if (existingMetric == null) { |
| // First row |
| existingMetric = currentMetric; |
| currentMetric.setStartTime(endTime); |
| hostAggregate = new MetricHostAggregate(); |
| hostAggregateMap.put(currentMetric, hostAggregate); |
| } |
| |
| if (existingMetric.equalsExceptTime(currentMetric)) { |
| // Recalculate totals with current metric |
| hostAggregate.updateAggregates(currentHostAggregate); |
| } else { |
| // Switched over to a new metric - save existing - create new aggregate |
| currentMetric.setStartTime(endTime); |
| hostAggregate = new MetricHostAggregate(); |
| hostAggregate.updateAggregates(currentHostAggregate); |
| hostAggregateMap.put(currentMetric, hostAggregate); |
| existingMetric = currentMetric; |
| } |
| } |
| return hostAggregateMap; |
| } |
| |
| |
| } |