ambari/contrib/addons/utils/dataServices/ganglia/generate_hdfs_hdp_json.php

<?php
/*
 *
 * 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.
 *
*/


$data = array
  (
     'Global' => array
     (
        array
        (
           'url' =>
           'http://%GangliaWebHostName%:%GangliaWebPort%/ganglia/graph.php?c=%HDFSSlavesClusterName%&g=hdp_mon_hdfs_io_report',
           'title' => 'HDFS I/O',
           'description' => 'Bytes written to and read from HDFS, aggregated across all the DataNodes',
           'link' => 'http://%GangliaWebHostName%:%GangliaWebPort%/ganglia/?c=%NameNodeClusterName%'
        ),
        array
        (
           'url' =>
           'http://%GangliaWebHostName%:%GangliaWebPort%/ganglia/graph.php?c=%NameNodeClusterName%&g=hdp_mon_hdfs_ops_report',
           'title' => 'NameNode Operation Counts',
           'description' => 'Counts of key operations on the NameNode, to give a feel for the high-level HDFS activity pattern',
           'link' => 'http://%GangliaWebHostName%:%GangliaWebPort%/ganglia/?c=%NameNodeClusterName%'
        ),
        array
        (
           'url' =>
           'http://%GangliaWebHostName%:%GangliaWebPort%/ganglia/graph.php?c=%NameNodeClusterName%&g=hdp_mon_jvm_gc_report',
           'title' => 'NameNode: JVM Garbage Collection',
           'description' => 'Key Garbage Collection stats for the NameNode\'s JVM',
           'link' => 'http://%GangliaWebHostName%:%GangliaWebPort%/ganglia/?c=%NameNodeClusterName%'
        ),
        array
        (
           'url' =>
           'http://%GangliaWebHostName%:%GangliaWebPort%/ganglia/graph.php?c=%NameNodeClusterName%&g=hdp_mon_rpc_latency_report',
           'title' => 'NameNode: RPC Average Latencies',
           'description' => 'Average latencies for processing and queue times on the NameNode, to give a feel for potential performance bottlenecks',
           'link' => 'http://%GangliaWebHostName%:%GangliaWebPort%/ganglia/?c=%NameNodeClusterName%'
        )
     )
  );

echo json_encode($data);

?>