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Posted to dev@phoenix.apache.org by karanmehta93 <gi...@git.apache.org> on 2018/08/01 17:35:40 UTC
[GitHub] phoenix pull request #315: PHOENIX-3655 Global Phoenix Client Metrics for PQ...
Github user karanmehta93 commented on a diff in the pull request:
https://github.com/apache/phoenix/pull/315#discussion_r206968534
--- Diff: phoenix-core/src/main/java/org/apache/phoenix/monitoring/GlobalMetricRegistriesAdapter.java ---
@@ -0,0 +1,167 @@
+/*
+ * 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.phoenix.monitoring;
+
+import java.util.Iterator;
+import java.util.Map;
+import java.util.Map.Entry;
+import org.apache.commons.lang.StringUtils;
+import org.apache.commons.logging.Log;
+import org.apache.commons.logging.LogFactory;
+import org.apache.hadoop.hbase.metrics.Counter;
+import org.apache.hadoop.hbase.metrics.Gauge;
+import org.apache.hadoop.hbase.metrics.Histogram;
+import org.apache.hadoop.hbase.metrics.Meter;
+import org.apache.hadoop.hbase.metrics.Metric;
+import org.apache.hadoop.hbase.metrics.MetricRegistry;
+import org.apache.hadoop.hbase.metrics.MetricRegistryInfo;
+import org.apache.hadoop.hbase.metrics.Timer;
+import org.apache.hadoop.metrics2.MetricsCollector;
+import org.apache.hadoop.metrics2.MetricsInfo;
+import org.apache.hadoop.metrics2.MetricsRecordBuilder;
+import org.apache.hadoop.metrics2.MetricsSource;
+import org.apache.hadoop.metrics2.lib.DefaultMetricsSystem;
+import org.apache.hadoop.metrics2.lib.Interns;
+import org.apache.hadoop.metrics2.lib.MutableHistogram;
+import org.apache.hadoop.metrics2.source.JvmMetrics;
+
+/**
+ * Contents mostly copied from GlobalMetricRegistriesAdapter class from hbase-hadoop2-compat
+ * The adapter attaches HBase's MetricRegistry to Hadoop's DefaultMetricsSystem
+ * Doesn't handle dynamic attach/detach of registries
+ */
+public class GlobalMetricRegistriesAdapter {
+
+ private static final Log LOG = LogFactory.getLog(GlobalMetricRegistriesAdapter.class);
+ private static GlobalMetricRegistriesAdapter INSTANCE;
+
+ private GlobalMetricRegistriesAdapter() {
+ DefaultMetricsSystem.initialize("HBase");
+ JvmMetrics.initSingleton("HBase", "");
--- End diff --
Lets keep it as client since they represent client in the end, even though it PQS that is instantiating it.
---