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From joshelser <...@git.apache.org>
Subject [GitHub] phoenix pull request #242: PQS metrics - https://issues.apache.org/jira/brow...
Date Mon, 01 May 2017 14:46:57 GMT
Github user joshelser commented on a diff in the pull request:

    https://github.com/apache/phoenix/pull/242#discussion_r114133420
  
    --- Diff: phoenix-queryserver/src/main/java/org/apache/phoenix/queryserver/metrics/PqsGlobalMetrics.java
---
    @@ -0,0 +1,76 @@
    +/*
    + * 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 com.codahale.metrics.Gauge;
    +import com.codahale.metrics.MetricRegistry;
    +import org.apache.commons.logging.Log;
    +import org.apache.commons.logging.LogFactory;
    +import org.apache.phoenix.monitoring.GlobalMetric;
    +import org.apache.phoenix.queryserver.metrics.sink.PqsSink;
    +import org.apache.phoenix.util.PhoenixRuntime;
    +
    +import java.util.Collection;
    +
    +public class PqsGlobalMetrics implements Runnable {
    +
    +    protected static final Log LOG = LogFactory.getLog(PqsGlobalMetrics.class);
    +    public final static String global = "global";
    +    private Collection<GlobalMetric> phoenixGlobalMetricsCollection;
    +    private PqsSink pqsSink;
    +    private static final MetricRegistry metrics = new MetricRegistry();
    +
    +    public PqsGlobalMetrics(PqsSink pqsSink) {
    +        phoenixGlobalMetricsCollection = PhoenixRuntime.getGlobalPhoenixClientMetrics();
    +        this.pqsSink = pqsSink;
    +        for(final GlobalMetric globalMetric:phoenixGlobalMetricsCollection) {
    +            metrics.register(MetricRegistry.name(PqsGlobalMetrics.class,
    +                    global,globalMetric.getName()),
    +                    new Gauge<Long>() {
    +                        @Override
    +                        public Long getValue() {
    +                            return globalMetric.getValue();
    +                        }
    +                    });
    +        }
    +
    +    }
    +
    +    @Override
    +    public void run() {
    +        while (true) {
    +            int delay = PqsConfiguration.getReportingInterval();
    +            //besides writing to JMX, the global metrics is also written to pqsSink
    +            //default pqsSink is slf4j ( logger)
    +            phoenixGlobalMetricsCollection = PhoenixRuntime.getGlobalPhoenixClientMetrics();
    +            this.pqsSink.writeGlobal(phoenixGlobalMetricsCollection);
    +            try {
    +                Thread.sleep(delay);
    +            } catch (InterruptedException e) {
    +                LOG.error(" Sleep thread interrupted for metrics collection ");
    --- End diff --
    
    Exit the thread if it was interrupted.


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