Github user joshelser commented on a diff in the pull request:
https://github.com/apache/phoenix/pull/242#discussion_r114133555
--- Diff:
phoenix-queryserver/src/main/java/org/apache/phoenix/queryserver/metrics/PqsMetricsSystem.java
---
@@ -0,0 +1,82 @@
+/*
+ * 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.queryserver.metrics;
+
+
+import org.apache.phoenix.queryserver.metrics.sink.PqsFileSink;
+import org.apache.phoenix.queryserver.metrics.sink.PqsSink;
+import org.apache.phoenix.queryserver.metrics.sink.PqsSlf4jSink;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+
+public class PqsMetricsSystem {
+
+ public final static String statementLevelMetrics = "statement";
+ public final static String connectionMetrics = "connection";
+ protected static final Logger LOG =
LoggerFactory.getLogger(PqsMetricsSystem.class);
+
+ public Thread getGlobalMetricThread() {
+ return globalMetricThread;
+ }
+
+ private Thread globalMetricThread = null;
+ public PqsSink pqsSink;
+
+
+ public PqsMetricsSystem(){
+
+ PqsGlobalMetrics pqsGlobalMetricsToJMX = null;
+ try {
+ pqsSink = getSinkObject();
+ pqsGlobalMetricsToJMX = new PqsGlobalMetrics(pqsSink);
+ globalMetricThread = new Thread(pqsGlobalMetricsToJMX);
+ globalMetricThread.start();
+ }catch (Exception ex){
+ LOG.error(" could not instantiate the PQS Metrics System");
+ if (globalMetricThread!=null) {
+ try {
+ globalMetricThread.join();
+ } catch (Exception ine) {
+ LOG.error(" unable to stop the global metrics
thread",ine);
+ }
+ }
+
+ }
+ }
+
+ private PqsSink getSinkObject(){
+ PqsSink pqsSink;
+ String typeOfSink = PqsConfiguration.getTypeOfSink();
--- End diff --
You should normalize the values set by a user `SLF4J` is treated
differently than `slf4j`.
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