PHP监测Memcache服务端的运行状况

PHP监测Memcache服务端的运行状况

代码如下，代码为memcache官方代码，引用在此，做一下简单的说明：

1、设置用户名和密码

define('ADMIN_USERNAME','admin'); // Admin Username define('ADMIN_PASSWORD','123456'); // Admin Password

2、配置服务器及其端口，可以配置多台

$MEMCACHE_SERVERS[] = 'localhost:11211'; // add more as an array $MEMCACHE_SERVERS[] = 'localhost:11212'; // add more as an array

<?php /* ---------------------------------------------------------------------- | PHP Version 5 | ---------------------------------------------------------------------- | Copyright (c) 1997-2004 The PHP Group | ---------------------------------------------------------------------- | This source file is subject to version 3.0 of the PHP license, | | that is bundled with this package in the file LICENSE, and is | | available through the world-wide-web at the following url: | | http://www.php.net/license/3_0.txt. | | If you did not receive a copy of the PHP license and are unable to | | obtain it through the world-wide-web, please send a note to | | license@php.net so we can mail you a copy immediately. | ---------------------------------------------------------------------- | Author: Harun Yayli <harunyayli at gmail.com> | ---------------------------------------------------------------------- */

$VERSION='$Id: memcache.php,v 1.1.2.3 2008/08/28 18:07:54 mikl Exp $';

define('ADMIN_USERNAME','admin'); // Admin Username define('ADMIN_PASSWORD','123456'); // Admin Password define('DATE_FORMAT','Y/m/d H:i:s'); define('GRAPH_SIZE',200); define('MAX_ITEM_DUMP',50);

$MEMCACHE_SERVERS[] = 'localhost:11211'; // add more as an array

////////// END OF DEFAULT CONFIG AREA /////////////////////////////////////////////////////////////

///////////////// Password protect //////////////////////////////////////////////////////////////// if (!isset($_SERVER['PHP_AUTH_USER']) || !isset($_SERVER['PHP_AUTH_PW']) || $_SERVER['PHP_AUTH_USER'] != ADMIN_USERNAME ||$_SERVER['PHP_AUTH_PW'] != ADMIN_PASSWORD) { Header("WWW-Authenticate: Basic realm="Memcache Login""); Header("HTTP/1.0 401 Unauthorized");

echo <<<EOB <html><body> <h1>Rejected!</h1> <big>Wrong Username or Password!</big> </body></html> EOB; exit; }

///////////MEMCACHE FUNCTIONS /////////////////////////////////////////////////////////////////////

function sendMemcacheCommands($command){ global $MEMCACHE_SERVERS; $result = array();

foreach($MEMCACHE_SERVERS as $server){ $strs = explode(':',$server); $host = $strs[0]; $port = $strs[1]; $result[$server] = sendMemcacheCommand($host,$port,$command); } return $result; } function sendMemcacheCommand($server,$port,$command){

$s = @fsockopen($server,$port); if (!$s){ die("Cant connect to:".$server.':'.$port); }

fwrite($s, $command."rn");

$buf=''; while ((!feof($s))) { $buf .= fgets($s, 256); if (strpos($buf,"ENDrn")!==false){ // stat says end break; } if (strpos($buf,"DELETEDrn")!==false || strpos($buf,"NOT_FOUNDrn")!==false){ // delete says these break; } if (strpos($buf,"OKrn")!==false){ // flush_all says ok break; } } fclose($s); return parseMemcacheResults($buf); } function parseMemcacheResults($str){ $res = array(); $lines = explode("rn",$str); $cnt = count($lines); for($i=0; $i< $cnt; $i ){ $line = $lines[$i]; $l = explode(' ',$line,3); if (count($l)==3){ $res[$l[0]][$l[1]]=$l[2]; if ($l[0]=='VALUE'){ // next line is the value $res[$l[0]][$l[1]] = array(); list ($flag,$size)=explode(' ',$l[2]); $res[$l[0]][$l[1]]['stat']=array('flag'=>$flag,'size'=>$size); $res[$l[0]][$l[1]]['value']=$lines[ $i]; } }elseif($line=='DELETED' || $line=='NOT_FOUND' || $line=='OK'){ return $line; } } return $res;

}

function dumpCacheSlab($server,$slabId,$limit){ list($host,$port) = explode(':',$server); $resp = sendMemcacheCommand($host,$port,'stats cachedump '.$slabId.' '.$limit);

return $resp;

}

function flushServer($server){ list($host,$port) = explode(':',$server); $resp = sendMemcacheCommand($host,$port,'flush_all'); return $resp; } function getCacheItems(){ $items = sendMemcacheCommands('stats items'); $serverItems = array(); $totalItems = array(); foreach ($items as $server=>$itemlist){ $serverItems[$server] = array(); $totalItems[$server]=0; if (!isset($itemlist['STAT'])){ continue; }

$iteminfo = $itemlist['STAT'];

foreach($iteminfo as $keyinfo=>$value){ if (preg_match('/items:(d ?):(. ?)$/',$keyinfo,$matches)){ $serverItems[$server][$matches[1]][$matches[2]] = $value; if ($matches[2]=='number'){ $totalItems[$server] =$value; } } } } return array('items'=>$serverItems,'counts'=>$totalItems); } function getMemcacheStats($total=true){ $resp = sendMemcacheCommands('stats'); if ($total){ $res = array(); foreach($resp as $server=>$r){ foreach($r['STAT'] as $key=>$row){ if (!isset($res[$key])){ $res[$key]=null; } switch ($key){ case 'pid': $res['pid'][$server]=$row; break; case 'uptime': $res['uptime'][$server]=$row; break; case 'time': $res['time'][$server]=$row; break; case 'version': $res['version'][$server]=$row; break; case 'pointer_size': $res['pointer_size'][$server]=$row; break; case 'rusage_user': $res['rusage_user'][$server]=$row; break; case 'rusage_system': $res['rusage_system'][$server]=$row; break; case 'curr_items': $res['curr_items'] =$row; break; case 'total_items': $res['total_items'] =$row; break; case 'bytes': $res['bytes'] =$row; break; case 'curr_connections': $res['curr_connections'] =$row; break; case 'total_connections': $res['total_connections'] =$row; break; case 'connection_structures': $res['connection_structures'] =$row; break; case 'cmd_get': $res['cmd_get'] =$row; break; case 'cmd_set': $res['cmd_set'] =$row; break; case 'get_hits': $res['get_hits'] =$row; break; case 'get_misses': $res['get_misses'] =$row; break; case 'evictions': $res['evictions'] =$row; break; case 'bytes_read': $res['bytes_read'] =$row; break; case 'bytes_written': $res['bytes_written'] =$row; break; case 'limit_maxbytes': $res['limit_maxbytes'] =$row; break; case 'threads': $res['rusage_system'][$server]=$row; break; } } } return $res; } return $resp; }

//////////////////////////////////////////////////////

// // don't cache this page // header("Cache-Control: no-store, no-cache, must-revalidate"); // HTTP/1.1 header("Cache-Control: post-check=0, pre-check=0", false); header("Pragma: no-cache"); // HTTP/1.0

function duration($ts) { global $time; $years = (int)((($time - $ts)/(7*86400))/52.177457); $rem = (int)(($time-$ts)-($years * 52.177457 * 7 * 86400)); $weeks = (int)(($rem)/(7*86400)); $days = (int)(($rem)/86400) - $weeks*7; $hours = (int)(($rem)/3600) - $days*24 - $weeks*7*24; $mins = (int)(($rem)/60) - $hours*60 - $days*24*60 - $weeks*7*24*60; $str = ''; if($years==1) $str .= "$years year, "; if($years>1) $str .= "$years years, "; if($weeks==1) $str .= "$weeks week, "; if($weeks>1) $str .= "$weeks weeks, "; if($days==1) $str .= "$days day,"; if($days>1) $str .= "$days days,"; if($hours == 1) $str .= " $hours hour and"; if($hours>1) $str .= " $hours hours and"; if($mins == 1) $str .= " 1 minute"; else $str .= " $mins minutes"; return $str; }

// create graphics // function graphics_avail() { return extension_loaded('gd'); }

function bsize($s) { foreach (array('','K','M','G') as $i => $k) { if ($s < 1024) break; $s/=1024; } return sprintf("%5.1f %sBytes",$s,$k); }

// create menu entry function menu_entry($ob,$title) { global $PHP_SELF; if ($ob==$_GET['op']){ return "<li><a class="child_active" href="$PHP_SELF&op=$ob">$title</a></li>"; } return "<li><a class="active" href="$PHP_SELF&op=$ob">$title</a></li>"; }

h1.memcache { background:rgb(153,153,204); margin:0; padding:0.5em 1em 0.5em 1em; } * html h1.memcache { margin-bottom:-7px; } h1.memcache a:hover { text-decoration:none; color:rgb(90,90,90); } h1.memcache span.logo { background:rgb(119,123,180); color:black; border-right: solid black 1px; border-bottom: solid black 1px; font-style:italic; font-size:1em; padding-left:1.2em; padding-right:1.2em; text-align:right; display:block; width:130px; } h1.memcache span.logo span.name { color:white; font-size:0.7em; padding:0 0.8em 0 2em; } h1.memcache span.nameinfo { color:white; display:inline; font-size:0.4em; margin-left: 3em; } h1.memcache div.copy { color:black; font-size:0.4em; position:absolute; right:1em; } hr.memcache { background:white; border-bottom:solid rgb(102,102,153) 1px; border-style:none; border-top:solid rgb(102,102,153) 10px; height:12px; margin:0; margin-top:1px; padding:0; }

ol,menu { margin:1em 0 0 0; padding:0.2em; margin-left:1em;} ol.menu li { display:inline; margin-right:0.7em; list-style:none; font-size:85%} ol.menu a { background:rgb(153,153,204); border:solid rgb(102,102,153) 2px; color:white; font-weight:bold; margin-right:0em; padding:0.1em 0.5em 0.1em 0.5em; text-decoration:none; margin-left: 5px; } ol.menu a.child_active { background:rgb(153,153,204); border:solid rgb(102,102,153) 2px; color:white; font-weight:bold; margin-right:0em; padding:0.1em 0.5em 0.1em 0.5em; text-decoration:none; border-left: solid black 5px; margin-left: 0px; } ol.menu span.active { background:rgb(153,153,204); border:solid rgb(102,102,153) 2px; color:black; font-weight:bold; margin-right:0em; padding:0.1em 0.5em 0.1em 0.5em; text-decoration:none; border-left: solid black 5px; } ol.menu span.inactive { background:rgb(193,193,244); border:solid rgb(182,182,233) 2px; color:white; font-weight:bold; margin-right:0em; padding:0.1em 0.5em 0.1em 0.5em; text-decoration:none; margin-left: 5px; } ol.menu a:hover { background:rgb(193,193,244); text-decoration:none; }

div.info { background:rgb(204,204,204); border:solid rgb(204,204,204) 1px; margin-bottom:1em; } div.info h2 { background:rgb(204,204,204); color:black; font-size:1em; margin:0; padding:0.1em 1em 0.1em 1em; } div.info table { border:solid rgb(204,204,204) 1px; border-spacing:0; width:100%; } div.info table th { background:rgb(204,204,204); color:white; margin:0; padding:0.1em 1em 0.1em 1em; } div.info table th a.sortable { color:black; } div.info table tr.tr-0 { background:rgb(238,238,238); } div.info table tr.tr-1 { background:rgb(221,221,221); } div.info table td { padding:0.3em 1em 0.3em 1em; } div.info table td.td-0 { border-right:solid rgb(102,102,153) 1px; white-space:nowrap; } div.info table td.td-n { border-right:solid rgb(102,102,153) 1px; } div.info table td h3 { color:black; font-size:1.1em; margin-left:-0.3em; } .td-0 a , .td-n a, .tr-0 a , tr-1 a { text-decoration:underline; } div.graph { margin-bottom:1em } div.graph h2 { background:rgb(204,204,204);; color:black; font-size:1em; margin:0; padding:0.1em 1em 0.1em 1em; } div.graph table { border:solid rgb(204,204,204) 1px; color:black; font-weight:normal; width:100%; } div.graph table td.td-0 { background:rgb(238,238,238); } div.graph table td.td-1 { background:rgb(221,221,221); } div.graph table td { padding:0.2em 1em 0.4em 1em; }

div.div1,div.div2 { margin-bottom:1em; width:35em; } div.div3 { position:absolute; left:40em; top:1em; width:580px; } //div.div3 { position:absolute; left:37em; top:1em; right:1em; }

div.sorting { margin:1.5em 0em 1.5em 2em } .center { text-align:center } .aright { position:absolute;right:1em } .right { text-align:right } .ok { color:rgb(0,200,0); font-weight:bold} .failed { color:rgb(200,0,0); font-weight:bold}

span.box { border: black solid 1px; border-right:solid black 2px; border-bottom:solid black 2px; padding:0 0.5em 0 0.5em; margin-right:1em; } span.green { background:#60F060; padding:0 0.5em 0 0.5em} span.red { background:#D06030; padding:0 0.5em 0 0.5em }

div.authneeded { background:rgb(238,238,238); border:solid rgb(204,204,204) 1px; color:rgb(200,0,0); font-size:1.2em; font-weight:bold; padding:2em; text-align:center; }

input { background:rgb(153,153,204); border:solid rgb(102,102,153) 2px; color:white; font-weight:bold; margin-right:1em; padding:0.1em 0.5em 0.1em 0.5em; } //--> </style> </head> <body> <div class="head"> <h1 class="memcache"> <span class="logo"><a href="http://pecl.php.net/package/memcache">memcache</a></span> <span class="nameinfo">memcache.php by <a href="http://livebookmark.net">Harun Yayli</a></span> </h1> <hr class="memcache"> </div> <div class="content"> EOB;

return $header; } function getFooter(){ global $VERSION; $footer = '</div></body> </html> ';

return $footer;

} function getMenu(){ global $PHP_SELF; echo "<ol class="menu">"; if ($_GET['op']!=4){ echo <<<EOB <li><a href="https://www.linuxidc.com/Linux/2014-11/$PHP_SELF&op={$_GET['op']}">Refresh Data</a></li> EOB; } else { echo <<<EOB <li><a href="https://www.linuxidc.com/Linux/2014-11/$PHP_SELF&op=2}">Back</a></li> EOB; } echo menu_entry(1,'View Host Stats'), menu_entry(2,'Variables');

echo <<<EOB </ol> <br/> EOB; }

// TODO, AUTH

$_GET['op'] = !isset($_GET['op'])? '1':$_GET['op']; $PHP_SELF= isset($_SERVER['PHP_SELF']) ? htmlentities(strip_tags($_SERVER['PHP_SELF'],'')) : '';

$PHP_SELF=$PHP_SELF.'?'; $time = time(); // sanitize _GET

foreach($_GET as $key=>$g){ $_GET[$key]=htmlentities($g); }

// singleout // when singleout is set, it only gives details for that server. if (isset($_GET['singleout']) && $_GET['singleout']>=0 && $_GET['singleout'] <count($MEMCACHE_SERVERS)){ $MEMCACHE_SERVERS = array($MEMCACHE_SERVERS[$_GET['singleout']]); }

// display images if (isset($_GET['IMG'])){ $memcacheStats = getMemcacheStats(); $memcacheStatsSingle = getMemcacheStats(false);

if (!graphics_avail()) { exit(0); }

function fill_box($im, $x, $y, $w, $h, $color1, $color2,$text='',$placeindex='') { global $col_black; $x1=$x $w-1; $y1=$y $h-1;

imagerectangle($im, $x, $y1, $x1 1, $y 1, $col_black); if($y1>$y) imagefilledrectangle($im, $x, $y, $x1, $y1, $color2); else imagefilledrectangle($im, $x, $y1, $x1, $y, $color2); imagerectangle($im, $x, $y1, $x1, $y, $color1); if ($text) { if ($placeindex>0) {

if ($placeindex<16) { $px=5; $py=$placeindex*12 6; imagefilledrectangle($im, $px 90, $py 3, $px 90-4, $py-3, $color2); imageline($im,$x,$y $h/2,$px 90,$py,$color2); imagestring($im,2,$px,$py-6,$text,$color1);

} else { if ($placeindex<31) { $px=$x 40*2; $py=($placeindex-15)*12 6; } else { $px=$x 40*2 100*intval(($placeindex-15)/15); $py=($placeindex)*12 6; } imagefilledrectangle($im, $px, $py 3, $px-4, $py-3, $color2); imageline($im,$x $w,$y $h/2,$px,$py,$color2); imagestring($im,2,$px 2,$py-6,$text,$color1); } } else { imagestring($im,4,$x 5,$y1-16,$text,$color1); } } }

function fill_arc($im, $centerX, $centerY, $diameter, $start, $end, $color1,$color2,$text='',$placeindex=0) { $r=$diameter/2; $w=deg2rad((360 $start ($end-$start)/2)60);

if (function_exists("imagefilledarc")) { // exists only if GD 2.0.1 is avaliable imagefilledarc($im, $centerX 1, $centerY 1, $diameter, $diameter, $start, $end, $color1, IMG_ARC_PIE); imagefilledarc($im, $centerX, $centerY, $diameter, $diameter, $start, $end, $color2, IMG_ARC_PIE); imagefilledarc($im, $centerX, $centerY, $diameter, $diameter, $start, $end, $color1, IMG_ARC_NOFILL|IMG_ARC_EDGED); } else { imagearc($im, $centerX, $centerY, $diameter, $diameter, $start, $end, $color2); imageline($im, $centerX, $centerY, $centerX cos(deg2rad($start)) * $r, $centerY sin(deg2rad($start)) * $r, $color2); imageline($im, $centerX, $centerY, $centerX cos(deg2rad($start 1)) * $r, $centerY sin(deg2rad($start)) * $r, $color2); imageline($im, $centerX, $centerY, $centerX cos(deg2rad($end-1)) * $r, $centerY sin(deg2rad($end)) * $r, $color2); imageline($im, $centerX, $centerY, $centerX cos(deg2rad($end)) * $r, $centerY sin(deg2rad($end)) * $r, $color2); imagefill($im,$centerX $r*cos($w)/2, $centerY $r*sin($w)/2, $color2); } if ($text) { if ($placeindex>0) { imageline($im,$centerX $r*cos($w)/2, $centerY $r*sin($w)/2,$diameter, $placeindex*12,$color1); imagestring($im,4,$diameter, $placeindex*12,$text,$color1);

} else { imagestring($im,4,$centerX $r*cos($w)/2, $centerY $r*sin($w)/2,$text,$color1); } } } $size = GRAPH_SIZE; // image size $image = imagecreate($size 50, $size 10);

$col_white = imagecolorallocate($image, 0xFF, 0xFF, 0xFF); $col_red = imagecolorallocate($image, 0xD0, 0x60, 0x30); $col_green = imagecolorallocate($image, 0x60, 0xF0, 0x60); $col_black = imagecolorallocate($image, 0, 0, 0);

imagecolortransparent($image,$col_white);

switch ($_GET['IMG']){ case 1: // pie chart $tsize=$memcacheStats['limit_maxbytes']; $avail=$tsize-$memcacheStats['bytes']; $x=$y=$size/2; $angle_from = 0; $fuzz = 0.000001;

foreach($memcacheStatsSingle as $serv=>$mcs) { $free = $mcs['STAT']['limit_maxbytes']-$mcs['STAT']['bytes']; $used = $mcs['STAT']['bytes'];

if ($free>0){ // draw free $angle_to = ($free*360)/$tsize; $perc =sprintf("%.2f%%", ($free *100) / $tsize) ;

fill_arc($image,$x,$y,$size,$angle_from,$angle_from $angle_to ,$col_black,$col_green,$perc); $angle_from = $angle_from $angle_to ; } if ($used>0){ // draw used $angle_to = ($used*360)/$tsize; $perc =sprintf("%.2f%%", ($used *100) / $tsize) ; fill_arc($image,$x,$y,$size,$angle_from,$angle_from $angle_to ,$col_black,$col_red, '('.$perc.')' ); $angle_from = $angle_from $angle_to ; } }

break;

case 2: // hit miss

$hits = ($memcacheStats['get_hits']==0) ? 1:$memcacheStats['get_hits']; $misses = ($memcacheStats['get_misses']==0) ? 1:$memcacheStats['get_misses']; $total = $hits $misses ;

fill_box($image, 30,$size,50,-$hits*($size-21)/$total,$col_black,$col_green,sprintf("%.1f%%",$hits*100/$total)); fill_box($image,130,$size,50,-max(4,($total-$hits)*($size-21)/$total),$col_black,$col_red,sprintf("%.1f%%",$misses*100/$total)); break; } header("Content-type: image/png"); imagepng($image); exit; }

echo getHeader(); echo getMenu();

switch ($_GET['op']) {

case 1: // host stats $phpversion = phpversion(); $memcacheStats = getMemcacheStats(); $memcacheStatsSingle = getMemcacheStats(false);

$mem_size = $memcacheStats['limit_maxbytes']; $mem_used = $memcacheStats['bytes']; $mem_avail= $mem_size-$mem_used; $startTime = time()-array_sum($memcacheStats['uptime']);

$curr_items = $memcacheStats['curr_items']; $total_items = $memcacheStats['total_items']; $hits = ($memcacheStats['get_hits']==0) ? 1:$memcacheStats['get_hits']; $misses = ($memcacheStats['get_misses']==0) ? 1:$memcacheStats['get_misses']; $sets = $memcacheStats['cmd_set'];

$req_rate = sprintf("%.2f",($hits $misses)/($time-$startTime)); $hit_rate = sprintf("%.2f",($hits)/($time-$startTime)); $miss_rate = sprintf("%.2f",($misses)/($time-$startTime)); $set_rate = sprintf("%.2f",($sets)/($time-$startTime));

echo <<< EOB <div class="info div1"><h2>General Cache Information</h2> <table cellspacing=0><tbody> <tr class="tr-1"><td class="td-0">PHP Version</td><td>$phpversion</td></tr> EOB; echo "<tr class="tr-0"><td class="td-0">Memcached Host". ((count($MEMCACHE_SERVERS)>1) ? 's':'')."</td><td>"; $i=0; if (!isset($_GET['singleout']) && count($MEMCACHE_SERVERS)>1){ foreach($MEMCACHE_SERVERS as $server){ echo ($i 1).'. <a href="'.$PHP_SELF.'&singleout='.$i .'">'.$server.'</a><br/>'; } } else{ echo '1.'.$MEMCACHE_SERVERS[0]; } if (isset($_GET['singleout'])){ echo '<a href="'.$PHP_SELF.'">(all servers)</a><br/>'; } echo "</td></tr>n"; echo "<tr class="tr-1"><td class="td-0">Total Memcache Cache</td><td>".bsize($memcacheStats['limit_maxbytes'])."</td></tr>n";

echo <<<EOB </tbody></table> </div>

<div class="info div1"><h2>Memcache Server Information</h2> EOB; foreach($MEMCACHE_SERVERS as $server){ echo '<table cellspacing=0><tbody>'; echo '<tr class="tr-1"><td class="td-1">'.$server.'</td><td><a href="'.$PHP_SELF.'&server='.array_search($server,$MEMCACHE_SERVERS).'&op=6">[<b>Flush this server</b>]</a></td></tr>'; echo '<tr class="tr-0"><td class="td-0">Start Time</td><td>',date(DATE_FORMAT,$memcacheStatsSingle[$server]['STAT']['time']-$memcacheStatsSingle[$server]['STAT']['uptime']),'</td></tr>'; echo '<tr class="tr-1"><td class="td-0">Uptime</td><td>',duration($memcacheStatsSingle[$server]['STAT']['time']-$memcacheStatsSingle[$server]['STAT']['uptime']),'</td></tr>'; echo '<tr class="tr-0"><td class="td-0">Memcached Server Version</td><td>'.$memcacheStatsSingle[$server]['STAT']['version'].'</td></tr>'; echo '<tr class="tr-1"><td class="td-0">Used Cache Size</td><td>',bsize($memcacheStatsSingle[$server]['STAT']['bytes']),'</td></tr>'; echo '<tr class="tr-0"><td class="td-0">Total Cache Size</td><td>',bsize($memcacheStatsSingle[$server]['STAT']['limit_maxbytes']),'</td></tr>'; echo '</tbody></table>'; } echo <<<EOB

</div> <div class="graph div3"><h2>Host Status Diagrams</h2> <table cellspacing=0><tbody> EOB;

$size='width='.(GRAPH_SIZE 50).' height='.(GRAPH_SIZE 10); echo <<<EOB <tr> <td class="td-0">Cache Usage</td> <td class="td-1">Hits & Misses</td> </tr> EOB;

echo graphics_avail() ? '<tr>'. "<td class="td-0"><img alt="" $size src="$PHP_SELF&IMG=1&".(isset($_GET['singleout'])? 'singleout='.$_GET['singleout'].'&':'')."$time"></td>". "<td class="td-1"><img alt="" $size src="$PHP_SELF&IMG=2&".(isset($_GET['singleout'])? 'singleout='.$_GET['singleout'].'&':'')."$time"></td></tr>n" : "", '<tr>', '<td class="td-0"><span class="green box"> </span>Free: ',bsize($mem_avail).sprintf(" (%.1f%%)",$mem_avail*100/$mem_size),"</td>n", '<td class="td-1"><span class="green box"> </span>Hits: ',$hits.sprintf(" (%.1f%%)",$hits*100/($hits $misses)),"</td>n", '</tr>', '<tr>', '<td class="td-0"><span class="red box"> </span>Used: ',bsize($mem_used ).sprintf(" (%.1f%%)",$mem_used *100/$mem_size),"</td>n", '<td class="td-1"><span class="red box"> </span>Misses: ',$misses.sprintf(" (%.1f%%)",$misses*100/($hits $misses)),"</td>n"; echo <<< EOB </tr> </tbody></table> <br/> <div class="info"><h2>Cache Information</h2> <table cellspacing=0><tbody> <tr class="tr-0"><td class="td-0">Current Items(total)</td><td>$curr_items ($total_items)</td></tr> <tr class="tr-1"><td class="td-0">Hits</td><td>{$hits}</td></tr> <tr class="tr-0"><td class="td-0">Misses</td><td>{$misses}</td></tr> <tr class="tr-1"><td class="td-0">Request Rate (hits, misses)</td><td>$req_rate cache requests/second</td></tr> <tr class="tr-0"><td class="td-0">Hit Rate</td><td>$hit_rate cache requests/second</td></tr> <tr class="tr-1"><td class="td-0">Miss Rate</td><td>$miss_rate cache requests/second</td></tr> <tr class="tr-0"><td class="td-0">Set Rate</td><td>$set_rate cache requests/second</td></tr> </tbody></table> </div>

EOB;

break;

case 2: // variables

$m=0; $cacheItems= getCacheItems(); $items = $cacheItems['items']; $totals = $cacheItems['counts']; $maxDump = MAX_ITEM_DUMP; foreach($items as $server => $entries) {

echo <<< EOB

<div class="info"><table cellspacing=0><tbody> <tr><th colspan="2">$server</th></tr> <tr><th>Slab Id</th><th>Info</th></tr> EOB;

foreach($entries as $slabId => $slab) { $dumpUrl = $PHP_SELF.'&op=2&server='.(array_search($server,$MEMCACHE_SERVERS)).'&dumpslab='.$slabId; echo "<tr class="tr-"$m>", "<td class="td-0"><center>",'<a href="',$dumpUrl,'">',$slabId,'</a>',"</center></td>", "<td class="td-last"><b>Item count:</b> ",$slab['number'],'<br/><b>Age:</b>',duration($time-$slab['age']),'<br/> <b>Evicted:</b>',((isset($slab['evicted']) && $slab['evicted']==1)? 'Yes':'No'); if ((isset($_GET['dumpslab']) && $_GET['dumpslab']==$slabId) && (isset($_GET['server']) && $_GET['server']==array_search($server,$MEMCACHE_SERVERS))){ echo "<br/><b>Items: item</b><br/>"; $items = dumpCacheSlab($server,$slabId,$slab['number']); // maybe someone likes to do a pagination here

编程算法 http php memcached 缓存

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