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DarkConsoleServicesPlugin.php
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Tue, Jan 14, 08:28

DarkConsoleServicesPlugin.php
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<?php
/*
* Copyright 2011 Facebook, Inc.
*
* Licensed 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.
*/
class DarkConsoleServicesPlugin extends DarkConsolePlugin {
protected $observations;
public function getName() {
return 'Services';
}
public function getDescription() {
return 'Information about services.';
}
public function generateData() {
$log = PhutilServiceProfiler::getInstance()->getServiceCallLog();
foreach ($log as $key => $entry) {
$config = $entry['config'];
unset($log[$key]['config']);
if (empty($_REQUEST['__analyze__'])) {
$log[$key]['explain'] = array(
'sev' => 7,
'size' => null,
'reason' => 'Disabled',
);
// Query analysis is disabled for this request, so don't do any of it.
continue;
}
if ($entry['type'] != 'query') {
continue;
}
// For each SELECT query, go issue an EXPLAIN on it so we can flag stuff
// causing table scans, etc.
if (preg_match('/^\s*SELECT\b/i', $entry['query'])) {
$conn = new AphrontMySQLDatabaseConnection($entry['config']);
try {
$explain = queryfx_all(
$conn,
'EXPLAIN %Q',
$entry['query']);
$badness = 0;
$size = 1;
$reason = null;
foreach ($explain as $table) {
$size *= (int)$table['rows'];
switch ($table['type']) {
case 'index':
$cur_badness = 1;
$cur_reason = 'Index';
break;
case 'const':
$cur_badness = 1;
$cur_reason = 'Const';
break;
case 'eq_ref';
$cur_badness = 2;
$cur_reason = 'EqRef';
break;
case 'range':
$cur_badness = 3;
$cur_reason = 'Range';
break;
case 'ref':
$cur_badness = 3;
$cur_reason = 'Ref';
break;
case 'ALL':
if (preg_match('/Using where/', $table['Extra'])) {
if ($table['rows'] < 256 && !empty($table['possible_keys'])) {
$cur_badness = 2;
$cur_reason = 'Small Table Scan';
} else {
$cur_badness = 6;
$cur_reason = 'TABLE SCAN!';
}
} else {
$cur_badness = 3;
$cur_reason = 'Whole Table';
}
break;
default:
if (preg_match('/No tables used/i', $table['Extra'])) {
$cur_badness = 1;
$cur_reason = 'No Tables';
} else if (preg_match('/Impossible/i', $table['Extra'])) {
$cur_badness = 1;
$cur_reason = 'Empty';
} else {
$cur_badness = 4;
$cur_reason = "Can't Analyze";
}
break;
}
if ($cur_badness > $badness) {
$badness = $cur_badness;
$reason = $cur_reason;
}
}
$log[$key]['explain'] = array(
'sev' => $badness,
'size' => $size,
'reason' => $reason,
);
} catch (Exception $ex) {
$log[$key]['explain'] = array(
'sev' => 5,
'size' => null,
'reason' => $ex->getMessage(),
);
}
}
}
return array(
'start' => $GLOBALS['__start__'],
'end' => microtime(true),
'log' => $log,
);
}
public function render() {
$data = $this->getData();
$log = $data['log'];
$results = array();
$results[] =
'<div class="dark-console-panel-header">'.
phutil_render_tag(
'a',
array(
'href' => $this->getRequestURI()->alter('__analyze__', true),
'class' => isset($_REQUEST['__analyze__'])
? 'disabled button'
: 'green button',
),
'Analyze Query Plans').
'<h1>Calls to External Services</h1>'.
'<div style="clear: both;"></div>'.
'</div>';
$page_total = $data['end'] - $data['start'];
$totals = array();
$counts = array();
foreach ($log as $row) {
$totals[$row['type']] += $row['duration'];
$counts[$row['type']]++;
}
$totals['All'] = array_sum($totals);
$counts['All'] = array_sum($counts);
$table = new AphrontTableView();
$summary = array();
foreach ($totals as $type => $total) {
$summary[] = array(
$type,
number_format($counts[$type]),
number_format((int)(1000000 * $totals[$type])).' us',
sprintf('%.1f%%', 100 * $totals[$type] / $page_total),
);
}
$summary_table = new AphrontTableView($summary);
$summary_table->setColumnClasses(
array(
'',
'n',
'n',
'wide',
));
$summary_table->setHeaders(
array(
'Type',
'Count',
'Total Cost',
'Page Weight',
));
$results[] = $summary_table->render();
$rows = array();
foreach ($log as $row) {
$analysis = null;
switch ($row['type']) {
case 'query':
$info = $row['query'];
$info = wordwrap($info, 128, "\n", true);
if (!empty($row['explain'])) {
$analysis = phutil_escape_html($row['explain']['reason']);
$analysis = phutil_render_tag(
'span',
array(
'class' => 'explain-sev-'.$row['explain']['sev'],
),
$analysis);
}
$info = phutil_escape_html($info);
break;
case 'connect':
$info = $row['host'].':'.$row['database'];
$info = phutil_escape_html($info);
break;
case 'exec':
$info = $row['command'];
$info = phutil_escape_html($info);
break;
case 'conduit':
$info = $row['method'];
$info = phutil_escape_html($info);
break;
default:
$info = '-';
break;
}
$rows[] = array(
phutil_escape_html($row['type']),
'+'.number_format(1000 * ($row['begin'] - $data['start'])).' ms',
number_format(1000000 * $row['duration']).' us',
$info,
$analysis,
);
}
$table = new AphrontTableView($rows);
$table->setColumnClasses(
array(
null,
'n',
'n',
'wide',
'',
));
$table->setHeaders(
array(
'Event',
'Start',
'Duration',
'Details',
'Analysis',
));
$results[] = $table->render();
return implode("\n", $results);
}
}

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