| /** |
| * 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 static org.apache.ambari.metrics.core.timeline.query.PhoenixTransactSQL.GET_CLUSTER_AGGREGATE_SQL; |
| import static org.apache.ambari.metrics.core.timeline.query.PhoenixTransactSQL.GET_CLUSTER_AGGREGATE_TIME_SQL; |
| import static org.apache.ambari.metrics.core.timeline.query.PhoenixTransactSQL.METRICS_CLUSTER_AGGREGATE_TABLE_NAME; |
| |
| 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.query.DefaultCondition; |
| import org.apache.hadoop.conf.Configuration; |
| import org.apache.hadoop.metrics2.sink.timeline.MetricClusterAggregate; |
| import org.apache.hadoop.metrics2.sink.timeline.MetricHostAggregate; |
| import org.apache.ambari.metrics.core.timeline.PhoenixHBaseAccessor; |
| import org.apache.ambari.metrics.core.timeline.availability.AggregationTaskRunner.AGGREGATOR_NAME; |
| import org.apache.ambari.metrics.core.timeline.discovery.TimelineMetricMetadataManager; |
| import org.apache.ambari.metrics.core.timeline.query.Condition; |
| |
| public class TimelineMetricClusterAggregator extends AbstractTimelineAggregator { |
| private final TimelineMetricReadHelper readHelper; |
| private final boolean isClusterPrecisionInputTable; |
| |
| public TimelineMetricClusterAggregator(AGGREGATOR_NAME aggregatorName, |
| TimelineMetricMetadataManager metricMetadataManager, |
| PhoenixHBaseAccessor hBaseAccessor, |
| Configuration metricsConf, |
| String checkpointLocation, |
| Long sleepIntervalMillis, |
| Integer checkpointCutOffMultiplier, |
| String hostAggregatorDisabledParam, |
| String inputTableName, |
| String outputTableName, |
| Long nativeTimeRangeDelay, |
| MetricCollectorHAController haController) { |
| super(aggregatorName, hBaseAccessor, metricsConf, checkpointLocation, |
| sleepIntervalMillis, checkpointCutOffMultiplier, |
| hostAggregatorDisabledParam, inputTableName, outputTableName, |
| nativeTimeRangeDelay, haController); |
| isClusterPrecisionInputTable = inputTableName.equals(METRICS_CLUSTER_AGGREGATE_TABLE_NAME); |
| readHelper = new TimelineMetricReadHelper(metricMetadataManager, true); |
| } |
| |
| @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); |
| String sqlStr = String.format(GET_CLUSTER_AGGREGATE_TIME_SQL, tableName); |
| // HOST_COUNT vs METRIC_COUNT |
| if (isClusterPrecisionInputTable) { |
| sqlStr = String.format(GET_CLUSTER_AGGREGATE_SQL, tableName); |
| } |
| |
| condition.setStatement(sqlStr); |
| condition.addOrderByColumn("UUID"); |
| condition.addOrderByColumn("SERVER_TIME"); |
| return condition; |
| } |
| |
| @Override |
| protected void aggregate(ResultSet rs, long startTime, long endTime) throws IOException, SQLException { |
| Map<TimelineClusterMetric, MetricHostAggregate> hostAggregateMap = aggregateMetricsFromResultSet(rs, endTime); |
| |
| LOG.info("Saving " + hostAggregateMap.size() + " metric aggregates."); |
| hBaseAccessor.saveClusterAggregateRecordsSecond(hostAggregateMap, outputTableName); |
| } |
| |
| private Map<TimelineClusterMetric, MetricHostAggregate> aggregateMetricsFromResultSet(ResultSet rs, long endTime) |
| throws IOException, SQLException { |
| |
| TimelineClusterMetric existingMetric = null; |
| MetricHostAggregate hostAggregate = null; |
| Map<TimelineClusterMetric, MetricHostAggregate> hostAggregateMap = |
| new HashMap<TimelineClusterMetric, MetricHostAggregate>(); |
| int perMetricCount = 0; |
| |
| while (rs.next()) { |
| TimelineClusterMetric currentMetric = readHelper.fromResultSet(rs); |
| |
| MetricClusterAggregate currentHostAggregate = |
| isClusterPrecisionInputTable ? |
| readHelper.getMetricClusterAggregateFromResultSet(rs) : |
| readHelper.getMetricClusterTimeAggregateFromResultSet(rs); |
| |
| if (existingMetric == null) { |
| // First row |
| existingMetric = currentMetric; |
| currentMetric.setTimestamp(endTime); |
| hostAggregate = new MetricHostAggregate(); |
| hostAggregateMap.put(currentMetric, hostAggregate); |
| perMetricCount++; |
| } |
| |
| if (existingMetric.equalsExceptTime(currentMetric)) { |
| // Recalculate totals with current metric |
| updateAggregatesFromHost(hostAggregate, currentHostAggregate); |
| perMetricCount++; |
| } else { |
| // Switched over to a new metric - save new metric |
| |
| hostAggregate.setSum(hostAggregate.getSum() / (perMetricCount - 1)); |
| hostAggregate.setNumberOfSamples(Math.round((float)hostAggregate.getNumberOfSamples() / (float)(perMetricCount - 1))); |
| perMetricCount = 1; |
| |
| hostAggregate = new MetricHostAggregate(); |
| currentMetric.setTimestamp(endTime); |
| updateAggregatesFromHost(hostAggregate, currentHostAggregate); |
| hostAggregateMap.put(currentMetric, hostAggregate); |
| existingMetric = currentMetric; |
| } |
| |
| } |
| |
| if (existingMetric != null) { |
| hostAggregate.setSum(hostAggregate.getSum() / perMetricCount); |
| hostAggregate.setNumberOfSamples(Math.round((float)hostAggregate.getNumberOfSamples() / (float)perMetricCount)); |
| } |
| |
| return hostAggregateMap; |
| } |
| |
| private void updateAggregatesFromHost(MetricHostAggregate agg, MetricClusterAggregate currentClusterAggregate) { |
| agg.updateMax(currentClusterAggregate.getMax()); |
| agg.updateMin(currentClusterAggregate.getMin()); |
| agg.updateSum(currentClusterAggregate.getSum()); |
| agg.updateNumberOfSamples(currentClusterAggregate.getNumberOfHosts()); |
| } |
| } |