diff --git a/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/metrics2/lib/MutableQuantiles.java b/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/metrics2/lib/MutableQuantiles.java index 2e6053ff6ce..a4711db3503 100644 --- a/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/metrics2/lib/MutableQuantiles.java +++ b/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/metrics2/lib/MutableQuantiles.java @@ -31,6 +31,7 @@ import org.apache.hadoop.classification.InterfaceStability; import org.apache.hadoop.metrics2.MetricsInfo; import org.apache.hadoop.metrics2.MetricsRecordBuilder; import org.apache.hadoop.metrics2.util.Quantile; +import org.apache.hadoop.metrics2.util.QuantileEstimator; import org.apache.hadoop.metrics2.util.SampleQuantiles; import com.google.common.annotations.VisibleForTesting; @@ -54,7 +55,7 @@ public class MutableQuantiles extends MutableMetric { private final MetricsInfo[] quantileInfos; private final int interval; - private SampleQuantiles estimator; + private QuantileEstimator estimator; private long previousCount = 0; @VisibleForTesting @@ -134,6 +135,10 @@ public class MutableQuantiles extends MutableMetric { return interval; } + public synchronized void setEstimator(QuantileEstimator quantileEstimator) { + this.estimator = quantileEstimator; + } + /** * Runnable used to periodically roll over the internal * {@link SampleQuantiles} every interval. diff --git a/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/metrics2/util/QuantileEstimator.java b/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/metrics2/util/QuantileEstimator.java new file mode 100644 index 00000000000..075b879fc92 --- /dev/null +++ b/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/metrics2/util/QuantileEstimator.java @@ -0,0 +1,32 @@ +/** + * 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.util; + +import java.util.Map; + +public interface QuantileEstimator { + + void insert(long value); + + Map snapshot(); + + long getCount(); + + void clear(); +} diff --git a/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/metrics2/util/SampleQuantiles.java b/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/metrics2/util/SampleQuantiles.java index d54003671d4..0c5d98f2374 100644 --- a/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/metrics2/util/SampleQuantiles.java +++ b/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/metrics2/util/SampleQuantiles.java @@ -47,7 +47,7 @@ import com.google.common.base.Preconditions; * */ @InterfaceAudience.Private -public class SampleQuantiles { +public class SampleQuantiles implements QuantileEstimator { /** * Total number of items in stream diff --git a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/pom.xml b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/pom.xml index 051bb4e5fcd..59c333289db 100644 --- a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/pom.xml +++ b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/pom.xml @@ -117,6 +117,11 @@ com.google.protobuf protobuf-java + + + com.codahale.metrics + metrics-core +