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cluster_view.php
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cluster_view.php
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<?php
$refresh = isset($_GET['refresh']);
include_once "./eval_conf.php";
// ATD - function.php must be included before get_context.php.
// It defines some needed functions.
include_once "./functions.php";
include_once "./get_context.php";
include_once "./ganglia.php";
include_once "./get_ganglia.php";
include_once "./dwoo/dwooAutoload.php";
if ($refresh) {
try {
$dwoo = new Dwoo($conf['dwoo_compiled_dir'], $conf['dwoo_cache_dir']);
} catch (Exception $e) {
print "<H4>There was an error initializing the Dwoo PHP Templating Engine: " .
$e->getMessage() .
"<br><br>The compile directory should be owned and writable by the apache user.</H4>";
exit;
}
}
function get_load($host, $metrics) {
if (isset($metrics[$host]["cpu_num"]['VAL']) and
$metrics[$host]["cpu_num"]['VAL'] != 0 ) {
$cpus = $metrics[$host]["cpu_num"]['VAL'];
} else {
$cpus = 1;
}
if (isset($metrics[$host]["load_one"]['VAL']) ){
$load_one = $metrics[$host]["load_one"]['VAL'];
} else {
$load_one = 0;
}
$load = ((float) $load_one) / $cpus;
return $load;
}
function get_load_pie($showhosts,
$hosts_up,
$hosts_down,
$user,
$conf,
$metrics,
$cluster,
$name,
$data) {
if ($showhosts) {
$percent_hosts = array();
foreach ($hosts_up as $host => $val) {
// If host_regex is defined
if (isset($user['host_regex']) &&
! preg_match("/" .$user['host_regex'] . "/", $host))
continue;
$load = get_load($host, $metrics);
if (isset($percent_hosts[load_color($load)])) {
$percent_hosts[load_color($load)] += 1;
} else {
$percent_hosts[load_color($load)] = 1;
}
}
foreach ($hosts_down as $host => $val) {
$load = -1.0;
if (isset($percent_hosts[load_color($load)])) {
$percent_hosts[load_color($load)] += 1;
} else {
$percent_hosts[load_color($load)] = 1;
}
}
// Show pie chart of loads
$pie_args = "title=" . rawurlencode("Cluster Load Percentages");
$pie_args .= "&size=250x150";
foreach ($conf['load_colors'] as $name => $color) {
if (!array_key_exists($color, $percent_hosts))
continue;
$n = $percent_hosts[$color];
$name_url = rawurlencode($name);
$pie_args .= "&$name_url=$n,$color";
}
$data->assign("pie_args", $pie_args);
} else {
// Show pie chart of hosts up/down
$pie_args = "title=" . rawurlencode("Host Status");
$pie_args .= "&size=250x150";
$up_color = $conf['load_colors']["25-50"];
$down_color = $conf['load_colors']["down"];
$pie_args .= "&Up=$cluster[HOSTS_UP],$up_color";
$pie_args .= "&Down=$cluster[HOSTS_DOWN],$down_color";
$data->assign("pie_args", $pie_args);
}
}
function get_host_metric_graphs($showhosts,
$hosts_up,
$hosts_down,
$user,
$conf,
$metrics,
$metricname,
$sort,
$clustername,
$get_metric_string,
$cluster,
$always_timestamp,
$reports_metricname,
$clustergraphsize,
$range,
$cs,
$ce,
$vlabel,
$data) {
$sorted_hosts = array();
$down_hosts = array();
if ($showhosts) {
foreach ($hosts_up as $host => $val) {
// If host_regex is defined
if (isset($user['host_regex']) &&
! preg_match("/" .$user['host_regex'] . "/", $host))
continue;
$load = get_load($host, $metrics);
$host_load[$host] = $load;
if ($metricname == "load_one")
$sorted_hosts[$host] = $load;
else if (isset($metrics[$host][$metricname]))
$sorted_hosts[$host] = $metrics[$host][$metricname]['VAL'];
else
$sorted_hosts[$host] = "";
} // foreach hosts_up
foreach ($hosts_down as $host => $val) {
$down_hosts[$host] = -1.0;
}
$data->assign("node_legend", 1);
}
if (!is_array($hosts_up) or !$showhosts)
return;
switch ($sort) {
case "descending":
arsort($sorted_hosts);
break;
case "by name":
uksort($sorted_hosts, "strnatcmp");
break;
default:
case "ascending":
asort($sorted_hosts);
break;
}
$sorted_hosts = array_merge($down_hosts, $sorted_hosts);
if (isset($user['max_graphs']))
$max_graphs = $user['max_graphs'];
else
$max_graphs = $conf['max_graphs'];
// First pass to find the max value in all graphs for this
// metric. The $start,$end variables comes from get_context.php,
// included in index.php.
// Do this only if person has not selected a maximum set of graphs to display
if ($max_graphs == 0)
list($min, $max) = find_limits($sorted_hosts, $metricname);
// Second pass to output the graphs or metrics.
$i = 1;
// Initialize overflow list
$overflow_list = array();
$overflow_counter = 1;
$cluster_url = rawurlencode($clustername);
$size = isset($clustergraphsize) ? $clustergraphsize : 'small';
if ($conf['hostcols'] == 0) // enforce small size in multi-host report
$size = 'small';
// set host zoom class based on the size of the graph shown
if (isset($conf['zoom_support']) && $conf['zoom_support'] === true)
$additional_host_img_html_args = "class=host_${size}_zoomable";
foreach ($sorted_hosts as $host => $value) {
$host_url = rawurlencode($host);
$host_link="\"?c=$cluster_url&h=$host_url&$get_metric_string\"";
$textval = "";
//echo "$host: $value, ";
if (isset($hosts_down[$host]) and $hosts_down[$host]) {
$last_heartbeat = $cluster['LOCALTIME'] - $hosts_down[$host]['REPORTED'];
$age = $last_heartbeat > 3600 ?
uptime($last_heartbeat) : "${last_heartbeat}s";
$class = "down";
$textval = "down <br> <font size=\"-2\">Last heartbeat $age ago</font>";
} else {
if (isset($metrics[$host][$metricname]))
$val = $metrics[$host][$metricname];
else
$val = NULL;
$class = "metric";
if ($val['TYPE']=="timestamp" or
(isset($always_timestamp[$metricname]) and
$always_timestamp[$metricname])) {
$textval = date("r", $val['VAL']);
} elseif ($val['TYPE']=="string" or
$val['SLOPE']=="zero" or
(isset($always_constant[$metricname]) and
$always_constant[$metricname] or
($max_graphs > 0 and $i > $max_graphs))) {
if (isset($reports_metricname) and $reports_metricname)
// No "current" values available for reports
$textval = "N/A";
else
$textval = "$val[VAL]";
if (isset($val['UNITS']))
$textval .= " $val[UNITS]";
}
}
$graphargs = "z=$size&c=$cluster_url&h=$host_url";
if (isset($host_load[$host])) {
$load_color = load_color($host_load[$host]);
$graphargs .= "&l=$load_color&v=$val[VAL]";
}
$graphargs .= "&r=$range&su=1&st=$cluster[LOCALTIME]";
if ($cs)
$graphargs .= "&cs=" . rawurlencode($cs);
if ($ce)
$graphargs .= "&ce=" . rawurlencode($ce);
if ($showhosts == 1 && $max_graphs == 0 )
$graphargs .= "&x=$max&n=$min";
if (isset($vlabel))
$graphargs .= "&vl=" . urlencode($vlabel);
if ($textval) {
$cell = "<td class=$class>" .
"<b><a href=$host_link>$host</a></b><br>" .
"<i>$metricname:</i> <b>$textval</b></td>";
} else {
$cell = "<td><div><font style='font-size: 8px'>$host</font><br><a href=$host_link><img $additional_host_img_html_args src=\"./graph.php?";
$cell .= (isset($reports_metricname) and
$reports_metricname) ? "g=$metricname" : "m=$metricname";
$cell .= "&$graphargs\" title=\"$host\" border=0 style=\"padding:2px;\"></a></div></td>";
}
if ($conf['hostcols'] == 0) {
$pre = "<td><a href=$host_link><img src=\"./graph.php?g=";
$post = "&$graphargs\" $additional_host_img_html_args title=\"$host\" border=0 style=\"padding:2px;\"></a></td>";
$cell .= $pre . "load_report" . $post;
$cell .= $pre . "mem_report" . $post;
$cell .= $pre . "cpu_report" . $post;
$cell .= $pre . "network_report" . $post;
}
// Check if max_graphs is set.
// If it put cells in an overflow list since that one is hidden by default
if ($max_graphs > 0 and $i > $max_graphs ) {
$overflow_list[$host]["metric_image"] = $cell;
if (! ($overflow_counter++ % $conf['hostcols']) ) {
$overflow_list[$host]["br"] = "</tr><tr>";
} else {
$overflow_list[$host]["br"] = "";
}
} else {
$sorted_list[$host]["metric_image"] = $cell;
if (! ($i++ % $conf['hostcols']) ) {
$sorted_list[$host]["br"] = "</tr><tr>";
} else {
$sorted_list[$host]["br"] = "";
}
} // end of if ($max_graphs > 0 and $i > $max_graphs ) {
} // foreach sorted_hosts
$data->assign("sorted_list", $sorted_list);
// If there is an overflow list
if (sizeof($overflow_list) > 0) {
$data->assign("overflow_list_header", '<p><table width=80%><tr><td align=center class=metric>
<a href="#" id="overflow_list_button"onclick="$(\'#overflow_list\').toggle();" class="button ui-state-default ui-corner-all" title="Toggle overflow list">Show more hosts ('
. ($overflow_counter - 1) .')</a>
</td></tr></table>
<div style="display: none;" id="overflow_list"><table>
<tr>
');
$data->assign("overflow_list_footer", "</div></tr></table></div>");
} else {
$data->assign("overflow_list_header", "");
$data->assign("overflow_list_footer", "");
}
$data->assign("overflow_list", $overflow_list);
}
function get_cluster_overview($showhosts,
$metrics,
$cluster,
$range,
$clustername,
$data) {
$cpu_num = !$showhosts ? $metrics["cpu_num"]['SUM'] :
cluster_sum("cpu_num", $metrics);
$data->assign("cpu_num", $cpu_num);
if (isset($cluster['HOSTS_UP'])) {
$data->assign("num_nodes", intval($cluster['HOSTS_UP']));
} else {
$data->assign("num_nodes", 0);
}
if (isset($cluster['HOSTS_DOWN'])) {
$data->assign("num_dead_nodes", intval($cluster['HOSTS_DOWN']));
} else {
$data->assign("num_dead_nodes", 0);
}
$load_one_sum = !$showhosts ? $metrics["load_one"]['SUM'] :
cluster_sum("load_one", $metrics);
$load_five_sum = !$showhosts ? $metrics["load_five"]['SUM'] :
cluster_sum("load_five", $metrics);
$load_fifteen_sum = !$showhosts ? $metrics["load_fifteen"]['SUM'] :
cluster_sum("load_fifteen", $metrics);
if (!$cpu_num)
$cpu_num = 1;
$cluster_load15 = sprintf("%.0f",
((double) $load_fifteen_sum / $cpu_num) * 100);
$cluster_load5 = sprintf("%.0f", ((double) $load_five_sum / $cpu_num) * 100);
$cluster_load1 = sprintf("%.0f", ((double) $load_one_sum / $cpu_num) * 100);
$data->assign("cluster_load",
"$cluster_load15%, $cluster_load5%, $cluster_load1%");
$avg_cpu_num = find_avg($clustername, "", "cpu_num");
if ($avg_cpu_num == 0)
$avg_cpu_num = 1;
$cluster_util = sprintf("%.0f",
((double) find_avg($clustername,
"",
"load_one") / $avg_cpu_num ) * 100);
$data->assign("cluster_util", "$cluster_util%");
$data->assign("range", $range);
}
function get_cluster_optional_reports($conf,
$clustername,
$get_metric_string,
$localtime,
$data) {
$cluster_url = rawurlencode($clustername);
$graph_args = "c=$cluster_url&$get_metric_string&st=$localtime";
$optional_reports = "";
// If we want zoomable support on graphs we need to add correct zoomable
// class to every image
$additional_cluster_img_html_args = "";
if (isset($conf['zoom_support']) && $conf['zoom_support'] === true)
$additional_cluster_img_html_args = "class=cluster_zoomable";
$data->assign("additional_cluster_img_html_args", $additional_cluster_img_html_args);
###############################################################################
# Let's find out what optional reports are included
# First we find out what the default (site-wide) reports are then look
# for host specific included or excluded reports
###############################################################################
$default_reports = array("included_reports" => array(), "excluded_reports" => array());
if (is_file($conf['conf_dir'] . "/default.json")) {
$default_reports = array_merge(
$default_reports,
json_decode(file_get_contents($conf['conf_dir'] . "/default.json"), TRUE));
}
$cluster_file = $conf['conf_dir'] .
"/cluster_" .
str_replace(" ", "_", $clustername) .
".json";
$override_reports = array("included_reports" => array(), "excluded_reports" => array());
if (is_file($cluster_file)) {
$override_reports = array_merge($override_reports,
json_decode(file_get_contents($cluster_file), TRUE));
}
# Merge arrays
$reports["included_reports"] =
array_merge($default_reports["included_reports"],$override_reports["included_reports"]);
$reports["excluded_reports"] =
array_merge($default_reports["excluded_reports"],$override_reports["excluded_reports"]);
# Remove duplicates
$reports["included_reports"] = array_unique($reports["included_reports"]);
$reports["excluded_reports"] = array_unique($reports["excluded_reports"]);
$cluster_url = rawurlencode($clustername);
foreach ($reports["included_reports"] as $index => $report_name ) {
if (! in_array( $report_name, $reports["excluded_reports"])) {
$optional_reports .= "<A HREF=\"./graph_all_periods.php?$graph_args&g=" . $report_name . "&z=large&c=$cluster_url\">
<IMG BORDER=0 style=\"padding:2px;\" $additional_cluster_img_html_args title=\"$cluster_url\" SRC=\"./graph.php?$graph_args&g=" . $report_name ."&z=medium&c=$cluster_url\"></A>
";
}
}
$data->assign("optional_reports", $optional_reports);
$data->assign("graph_args", $graph_args);
if (!isset($conf['optional_graphs']))
$conf['optional_graphs'] = array();
$optional_graphs_data = array();
foreach ($conf['optional_graphs'] as $g) {
$optional_graphs_data[$g]['name'] = $g;
$optional_graphs_data[$g]['graph_args'] = $graph_args;
}
$data->assign('optional_graphs_data', $optional_graphs_data);
}
function get_load_heatmap($hosts_up, $user, $metrics, $data) {
foreach ($hosts_up as $host => $val) {
// If host_regex is defined
if (isset($user['host_regex']) &&
! preg_match("/" .$user['host_regex'] . "/", $host))
continue;
$load = get_load($host, $metrics);
$host_load[$host] = $load;
}
$num_hosts = count($host_load);
$matrix = ceil(sqrt($num_hosts));
$xindex = 0;
$yindex = 0;
foreach ($host_load as $key => $value) {
if ($xindex >= $matrix) {
$string_array[] = "[" . join(",", $matrix_array[$yindex]) . "]";
$yindex++;
$xindex = 0;
}
$matrix_array[$yindex][$xindex] = $value;
$xindex++;
}
$string_array[] = "[" . join(",", $matrix_array[$yindex]) . "]";
$conf['heatmap_size'] = 200;
$heatmap = join(",", $string_array);
$data->assign("heatmap", $heatmap);
$data->assign("heatmap_size", floor($conf['heatmap_size'] / $matrix));
}
$fn = "cluster_" . ($refresh ? "refresh" : "view") . ".tpl";
$tpl = new Dwoo_Template_File(template($fn));
$data = new Dwoo_Data();
if (! $refresh) {
$data->assign("php_gd",
(function_exists('imagegif') or function_exists('imagepng')));
$data->assign("extra", template("cluster_extra.tpl"));
$data->assign("user_may_edit",
checkAccess( $clustername, GangliaAcl::EDIT, $conf ) );
$data->assign("graph_engine", $conf['graph_engine']);
}
$data->assign("cluster", $clustername);
$data->assign("localtimestamp", $cluster['LOCALTIME']);
$data->assign("localtime", date("Y-m-d H:i", $cluster['LOCALTIME']));
get_cluster_overview($showhosts,
$metrics,
$cluster,
$range,
$clustername,
$data);
if (! $refresh) {
get_cluster_optional_reports($conf,
$clustername,
$get_metric_string,
$cluster[LOCALTIME],
$data);
///////////////////////////////////////////////////////////////////////////////
// Begin Host Display Controller
///////////////////////////////////////////////////////////////////////////////
// Correct handling of *_report metrics
if (!$showhosts) {
if (array_key_exists($metricname, $metrics))
$units = $metrics[$metricname]['UNITS'];
} else {
if (array_key_exists($metricname, $metrics[key($metrics)]))
if (isset($metrics[key($metrics)][$metricname]['UNITS']))
$units = $metrics[key($metrics)][$metricname]['UNITS'];
else
$units = '';
}
// Correctly handle *_report cases and blank (" ") units
if (isset($units)) {
$vlabel = $units;
if ($units == " ")
$units = "";
else
$units=$units ? "($units)" : "";
} else {
$units = "";
}
$data->assign("metric","$metricname $units");
$data->assign("metric_name","$metricname");
$data->assign("sort", $sort);
$data->assign("range", $range);
$showhosts_levels = array(1 => array('checked'=>'', 'name'=>'Auto'),
2 => array('checked'=>'', 'name'=>'Same'),
0 => array('checked'=>'', 'name'=>'None'),
);
$showhosts_levels[$showhosts]['checked'] = 'checked';
$data->assign("showhosts_levels", $showhosts_levels);
if ($showhosts) {
$data->assign("columns_size_dropdown", 1);
$data->assign("cols_menu", $cols_menu);
$data->assign("size_menu", $size_menu);
}
///////////////////////////////////////////////////////////////////////////////
// End Host Display Controller
///////////////////////////////////////////////////////////////////////////////
}
if (!(isset($conf['heatmaps_enabled']) and $conf['heatmaps_enabled'] == 1))
get_load_pie($showhosts,
$hosts_up,
$hosts_down,
$user,
$conf,
$metrics,
$cluster,
$name,
$data);
get_host_metric_graphs($showhosts,
$hosts_up,
$hosts_down,
$user,
$conf,
$metrics,
$metricname,
$sort,
$clustername,
$get_metric_string,
$cluster,
$always_timestamp,
$reports[$metricname],
$clustergraphsize,
$range,
$cs,
$ce,
$vlabel,
$data);
// No reason to go on if we have no up hosts.
if (!is_array($hosts_up) or !$showhosts) {
$dwoo->output($tpl, $data);
return;
}
///////////////////////////////////////////////////////////////////////////////
// Creates a heatmap
///////////////////////////////////////////////////////////////////////////////
if (isset($conf['heatmaps_enabled']) and $conf['heatmaps_enabled'] == 1)
get_load_heatmap($hosts_up, $user, $metrics, $data);
///////////////////////////////////////////////////////////////////////////////
// Show stacked graphs
///////////////////////////////////////////////////////////////////////////////
if (isset($conf['show_stacked_graphs']) and
$conf['show_stacked_graphs'] == 1 and
! preg_match("/_report$/", $metricname)) {
$cluster_url = rawurlencode($clustername);
$stacked_args = "m=$metricname&c=$cluster_url&r=$range&st=$cluster[LOCALTIME]";
if (isset($user['host_regex']))
$stacked_args .= "&host_regex=" . $user['host_regex'];
$data->assign("stacked_graph_args", $stacked_args);
}
$dwoo->output($tpl, $data);
?>