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[HUDI-7266] Add clustering metric for flink (apache#10420)
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...k-datasource/hudi-flink/src/main/java/org/apache/hudi/metrics/FlinkClusteringMetrics.java
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| /* | ||
| * 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. | ||
| */ | ||
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| package org.apache.hudi.metrics; | ||
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| import org.apache.hudi.common.table.timeline.HoodieInstant; | ||
| import org.apache.hudi.common.table.timeline.HoodieInstantTimeGenerator; | ||
| import org.apache.hudi.common.util.Option; | ||
| import org.apache.hudi.sink.clustering.ClusteringOperator; | ||
| import org.apache.hudi.sink.clustering.ClusteringPlanOperator; | ||
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| import org.apache.flink.metrics.MetricGroup; | ||
| import org.slf4j.Logger; | ||
| import org.slf4j.LoggerFactory; | ||
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| import java.text.ParseException; | ||
| import java.time.Duration; | ||
| import java.time.Instant; | ||
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| /** | ||
| * Metrics for flink clustering. | ||
| */ | ||
| public class FlinkClusteringMetrics extends FlinkWriteMetrics { | ||
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| private static final Logger LOG = LoggerFactory.getLogger(FlinkClusteringMetrics.class); | ||
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| /** | ||
| * Key for clustering timer. | ||
| */ | ||
| private static final String CLUSTERING_KEY = "clustering"; | ||
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| /** | ||
| * Number of pending clustering instants. | ||
| * | ||
| * @see ClusteringPlanOperator | ||
| */ | ||
| private long pendingClusteringCount; | ||
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| /** | ||
| * Duration between the earliest pending clustering instant time and now in seconds. | ||
| * | ||
| * @see ClusteringPlanOperator | ||
| */ | ||
| private long clusteringDelay; | ||
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| /** | ||
| * Cost for consuming a clustering operation in milliseconds. | ||
| * | ||
| * @see ClusteringOperator | ||
| */ | ||
| private long clusteringCost; | ||
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| public FlinkClusteringMetrics(MetricGroup metricGroup) { | ||
| super(metricGroup, CLUSTERING_KEY); | ||
| } | ||
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| @Override | ||
| public void registerMetrics() { | ||
| super.registerMetrics(); | ||
| metricGroup.gauge(getMetricsName(actionType, "pendingClusteringCount"), () -> pendingClusteringCount); | ||
| metricGroup.gauge(getMetricsName(actionType, "clusteringDelay"), () -> clusteringDelay); | ||
| metricGroup.gauge(getMetricsName(actionType, "clusteringCost"), () -> clusteringCost); | ||
| } | ||
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| public void setPendingClusteringCount(long pendingClusteringCount) { | ||
| this.pendingClusteringCount = pendingClusteringCount; | ||
| } | ||
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| public void setFirstPendingClusteringInstant(Option<HoodieInstant> firstPendingClusteringInstant) { | ||
| try { | ||
| if (!firstPendingClusteringInstant.isPresent()) { | ||
| this.clusteringDelay = 0L; | ||
| } else { | ||
| Instant start = HoodieInstantTimeGenerator.parseDateFromInstantTime((firstPendingClusteringInstant.get()).getTimestamp()).toInstant(); | ||
| this.clusteringDelay = Duration.between(start, Instant.now()).getSeconds(); | ||
| } | ||
| } catch (ParseException e) { | ||
| LOG.warn("Invalid input clustering instant" + firstPendingClusteringInstant); | ||
| } | ||
| } | ||
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| public void startClustering() { | ||
| startTimer(CLUSTERING_KEY); | ||
| } | ||
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| public void endClustering() { | ||
| this.clusteringCost = stopTimer(CLUSTERING_KEY); | ||
| } | ||
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| } |
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