Github user codymarcel commented on a diff in the pull request:
https://github.com/apache/phoenix/pull/41#discussion_r26243599
--- Diff:
phoenix-pherf/src/main/java/org/apache/phoenix/pherf/jmx/MonitorManager.java ---
@@ -0,0 +1,174 @@
+/*
+ * 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.pherf.jmx;
+
+import org.apache.phoenix.pherf.PherfConstants;
+import org.apache.phoenix.pherf.exception.FileLoaderRuntimeException;
+import org.apache.phoenix.pherf.jmx.monitors.Monitor;
+import org.apache.phoenix.pherf.result.file.ResultFileDetails;
+import org.apache.phoenix.pherf.result.impl.CSVResultHandler;
+import org.apache.phoenix.pherf.result.Result;
+import org.apache.phoenix.pherf.result.ResultHandler;
+import org.apache.phoenix.util.DateUtil;
+
+import javax.management.*;
+import java.io.IOException;
+import java.lang.management.ManagementFactory;
+import java.util.*;
+
+/**
+ * This class starts JMX stats for the configured monitors. Monitors
should be configured in MonitorDetails Enum.
+ * Each stat implements {@link
org.apache.phoenix.pherf.jmx.monitors.Monitor}.
+ *
+ * For the duration of any Pherf run, when the configured {@link
org.apache.phoenix.pherf.PherfConstants#MONITOR_FREQUENCY}
+ * is reached a snapshot of each monitor is taken and dumped out to a log
file.
+ */
+public class MonitorManager implements Runnable {
--- End diff --
Currently there is only one Monitor, but it's possible that we may want
different managers at some point.
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