Changeset 1092 for trunk/htdocs/diagnosis/index.php

Timestamp:

07/31/2012 11:22:10 AM (10 months ago)

Author:

moo

Message:

diagnosis: impl checks

Files:

• trunk/htdocs/diagnosis/index.php (modified) (3 diffs)

trunk/htdocs/diagnosis/index.php

@@ -2 +2 @@
 
 include "../common/common.php";
+$knownUnstablePhpVersions = array(
+        array('=', '5.3.14', 'random corrupt memory on high concurrent'),
+        );
 
 $module = "diagnosis";
 
 $notes = array();
-function note($type, $reason, $suggestion = "ok") // {{{
+$activeNote = null;
+function checking($item) // {{{
 {
-    global $notes;
+    global $activeNote;
+    $activeNote = array('item' => $item);
+}
+// }}}
+function result($type, $result, $suggestion = "") // {{{
+{
+    global $notes, $activeNote;
     $notes[] = array(
             'type' => $type
-            , 'reason' => $reason
+            , 'result' => ($type != 'skipped' && !$suggestion ? "OK. " : "") . $result
             , 'suggestion' => $suggestion
-            );
+            ) + $activeNote;
 }
 // }}}
@@ -36 +46 @@
 }
 // }}}
-
-if (!extension_loaded('XCache')) {
+function getIniFileInfo() // {{{
+{
     ob_start();
     phpinfo(INFO_GENERAL);
@@ -43 +53 @@
     ob_start();
     if (preg_match_all("!<tr>[^<]*<td[^>]*>[^<]*(?:Configuration|ini|Server API)[^<]*</td>[^<]*<td[^>]*>[^<]*</td>[^<]*</tr>!s", $info, $m)) {
-        echo '<div class="phpinfo">';
-        echo 'PHP Info';
-        echo '<table>';
-        echo implode('', $m[0]);
-        echo '</table>';
-        echo '</div>';
-    }
+        $iniInfo = '<table class="phpinfo">'
+            . implode('', $m[0])
+            . '</table>';
+    }
+    else {
+        $iniInfo = '';
+    }
+    $loadedIni = '';
+    $iniDirectory = '';
     if (preg_match('!<td class="v">(.*?\\.ini)!', $info, $m)) {
-        echo "Please check $m[1]";
+        $loadedIni = $m[1];
     }
     else if (preg_match('!Configuration File \\(php.ini\\) Path *</td><td class="v">([^<]+)!', $info, $m)) {
-        echo "Please put a php.ini in $m[1] and load XCache extension";
-    }
-    else {
-        echo "You don't even have a php.ini yet?";
-    }
-    echo "(See above)";
-    note("error", _T('XCache is not loaded'), ob_get_clean());
-}
-else {
-    note("info", _T('XCache loaded'));
-
+        $iniDirectory = $m[1];
+    }
+    return array($loadedIni, $iniDirectory, $iniInfo);
+}
+// }}}
+
+$xcacheLoaded = extension_loaded('XCache');
+checking(_T("XCache extension")); // {{{
+if (!$xcacheLoaded) {
+    list($loadedIni, $iniDirectory, $iniInfo) = getIniFileInfo();
+    if ($loadedIni) {
+        echo sprintf(_T("Add extension=xcache.so (or xcache.dll) in %s"), $loadedIni);
+    }
+    else if (preg_match('!Configuration File \\(php.ini\\) Path *</td><td class="v">([^<]+)!', $info, $m)) {
+        echo sprintf(_T("Please put a php.ini in %s and add extension=xcache.so (or xcache.dll) in it"), $iniDirectory);
+    }
+    else {
+        echo _T("Cannot detect ini location");
+    }
+    echo _T(" (See above)");
+    result("error", _T('Not loaded'), ob_get_clean());
+}
+else {
+    result("info", _T('Loaded'));
+}
+// }}}
+if ($xcacheLoaded) { // {{{ load XCache summary
     $cacheInfos = getCacheInfos();
 
-    if (!ini_get("xcache.size") || !ini_get("xcache.cacher")) {
-        note(
-            "error"
-            , _T("XCache is not enabled. Website is not accelerated by XCache")
-            , _T("Set xcache.size to non-zero, set xcache.cacher = On")
+    $ooms = 0;
+    $errors = 0;
+    $disabled = 0;
+    $compiling = 0;
+    $readonlyProtection = false;
+    $phpCacheCount = xcache_count(XC_TYPE_PHP);
+    $phpCached = 0;
+    $varCached = 0;
+    foreach ($cacheInfos as $cacheInfo) {
+        $ooms += $cacheInfo['ooms'];
+        $errors += $cacheInfo['errors'];
+        $disabled += $cacheInfo['disabled'] ? 1 : 0;
+        if ($cacheInfo['type'] == XC_TYPE_PHP) {
+            $compiling += $cacheInfo['compiling'] ? 1 : 0;
+            $phpCached += $cacheInfo['cached'];
+        }
+        if ($cacheInfo['type'] == XC_TYPE_VAR && $cacheInfo['cached']) {
+            $varCached += $cacheInfo['cached'];
+        }
+        if ($cacheInfo['can_readonly']) {
+            $readonlyProtection = true;
+        }
+    }
+}
+// }}}
+checking(_T("Enabling PHP Cacher")); // {{{
+if (!$xcacheLoaded) {
+    result("skipped", "XCache not loaded");
+}
+else if (!ini_get("xcache.size")) {
+    result(
+        "error"
+        , _T("Not enabled: Website is not accelerated by XCache")
+        , _T("Set xcache.size to non-zero, set xcache.cacher = On")
+        );
+}
+else if (!$phpCached) {
+    result(
+        "error"
+        , _T("No php script cached: Website is not accelerated by XCache")
+        , _T("Set xcache.cacher = On")
+        );
+}
+else {
+    result("info", _T('Enabled'));
+}
+// }}}
+checking(_T("PHP Compile Time Error")); // {{{
+if (!$xcacheLoaded) {
+    result("skipped", "XCache not loaded");
+}
+else if (!$phpCacheCount) {
+    result("skipped", "XCache PHP cacher not enabled");
+}
+else if ($errors) {
+    result(
+        "warning"
+        , _T("Error happened when compiling at least one of your PHP code")
+        , _T("This usually means there is syntax error in your PHP code. Enable PHP error_log to see what parser error is it, fix your code")
+        );
+}
+else {
+    result("info", _T('No error happened'));
+}
+// }}}
+checking(_T("Busy Compiling")); // {{{
+if (!$xcacheLoaded) {
+    result("skipped", "XCache not loaded");
+}
+else if (!$phpCacheCount) {
+    result("skipped", "XCache PHP cacher not enabled");
+}
+else if ($compiling) {
+    result(
+        "warning"
+        , _T("Cache marked as busy for compiling")
+        , _T("It's ok if this status don't stay for long. Otherwise, it could be a sign of PHP crash/coredump, report to XCache devs")
+        );
+}
+else {
+    result("info", _T('Idle'));
+}
+// }}}
+checking(_T("Enabling VAR Cacher")); // {{{
+if (!$xcacheLoaded) {
+    result("skipped", "XCache not loaded");
+}
+else if (!ini_get("xcache.var_size")) {
+    result(
+        "error"
+        , _T("Not enabled: code that use xcache var cacher fall back to other backend")
+        , _T("Set xcache.var_size to non-zero")
+        );
+}
+else {
+    result("info", _T('Enabled'));
+
+    checking(_T("Using VAR Cacher")); // {{{
+    if ($varCached) {
+        result(
+            "warning"
+            , _T("No variable data cached")
+            , _T("Var Cacher won't work simply by enabling it."
+                . " PHP code must call XCache APIs like xcache_set() to use it as cache backend. 3rd party web apps may come with XCache support, config it to use XCache as cachign backend")
             );
     }
     else {
-        note("info", _T('XCache Enabled'));
-    }
-
-    $ooms = false;
-    foreach ($cacheInfos as $cacheInfo) {
-        if ($cacheInfo['ooms']) {
-            $ooms = true;
-            break;
-        }
-    }
-    if ($ooms) {
-        note(
+        result("info", _T('Cache in use'));
+    }
+    // }}}
+}
+// }}}
+checking(_T("Cache Size")); // {{{
+if (!$xcacheLoaded) {
+    result("skipped", "XCache not loaded");
+}
+else if ($ooms) {
+    result(
+        "warning"
+        , _T("Out of memory happened when trying to write to cache")
+        , _T("Increase xcache.size and/or xcache.var_size")
+        );
+}
+else {
+    result("info", _T('Enough'));
+}
+// }}}
+checking(_T("Slots")); // {{{
+$slotsTooBig = null;
+$slotsTooSmall = null;
+foreach ($cacheInfos as $cacheInfo) {
+    if ($cacheInfo['size'] < '1024000' && $cacheInfo['slots'] >= '8192') {
+        $slotsTooBig = $cacheInfo['type'];
+        break;
+    }
+    if ($cacheInfo['slots'] < $cacheInfo['cached'] / 2) {
+        $slotsTooSmall = $cacheInfo['type'];
+        break;
+    }
+}
+if (isset($slotsTooBig)) {
+    $prefix = $slotsTooBig == XC_TYPE_PHP ? '' : 'var_';
+    result(
+        "warning"
+        , _T("Slots value too big")
+        , sprintf(_T("A very small value is set to %s value and leave %s value is too big.\n"
+            . "Decrease %s if small cache is really what you want"), "xcache.{$prefix}size", "xcache.{$prefix}slots", "xcache.{$prefix}slots")
+        );
+}
+else if (isset($slotsTooSmall)) {
+    $prefix = $slotsTooSmall == XC_TYPE_PHP ? '' : 'var_';
+    result(
+        "warning"
+        , _T("Slots value too small")
+        , sprintf(_T("So many item are cached. Increase %s to a more proper value"), "xcache.{$prefix}slots")
+        );
+}
+else {
+    result("info", _T('Looks good'));
+}
+// }}}
+checking(_T("Cache Status")); // {{{
+if (!$xcacheLoaded) {
+    result("skipped", "XCache not loaded");
+}
+else if ($disabled) {
+    result(
+        "warning"
+        , _T("At least one of the caches is disabled. ")
+            . (ini_get("xcache.crash_on_coredump") ? _T("It was disabled by PHP crash/coredump handler or You disabled it manually") : _T('You disabled it manually'))
+        , _T("Enable the cache.")
+            . (ini_get("xcache.crash_on_coredump") ? " " . _T("If it was caused by PHP crash/coredump, report to XCache devs") : "")
+        );
+}
+else {
+    result("info", _T('Idle'));
+}
+// }}}
+
+checking(_T("Coredump Directory")); // {{{
+if (!$xcacheLoaded) {
+    result("skipped", "XCache not loaded");
+}
+else if (!ini_get("xcache.coredump_directory")) {
+    result("info"
+            , _T("Not enabled")
+            , _T("Enable coredump to know your PHP crash. It can also be enabled in fpm other than in XCache")
+            );
+}
+else if (ini_get("xcache.coredump_directory")) {
+    $coreDir = ini_get("xcache.coredump_directory");
+    if (substr($coreDir, -1) != DIRECTORY_SEPARATOR) {
+        $coreDir .= DIRECTORY_SEPARATOR;
+    }
+    $coreFiles = glob($coreDir . "core*");
+    if ($coreFiles) {
+        result("error"
+                , _T("Core files found:\n") . implode("\n", $coreFiles)
+                , _T("Disable XCache PHP Cacher (xcache.size=0), remove the core file(s). If core file appears again, report call stack backtrace in the core to XCache devs")
+                );
+    }
+    else {
+        result("info"
+                , _T("Enabled")
+                , sprintf(_T("You can see core files if PHP crash in %s if PHP crash"), ini_get("xcache.coredump_directory"))
+                );
+    }
+}
+// }}}
+checking(_T("Readonly Protection")); // {{{
+if (!$xcacheLoaded) {
+    result("skipped", "XCache not loaded");
+}
+else if (ini_get("xcache.readonly_protection") && !$readonly_protection) {
+    result(
+        "error"
+        , _T("Set to enabled but not available")
+        , _T("Use xcache.mmap_path other than /dev/zero")
+        );
+}
+else {
+    result(
+        "info"
+        , $readonlyProtection ? _T("Enabled") : _T("Disabled")
+        , _T("Enable readonly_protection == --performance & ++stability. "
+            . "Disable readonly_protection == ++performance & --stability")
+        );
+}
+// }}}
+checking(_T("XCache modules")); // {{{
+if (!$xcacheLoaded) {
+    result("skipped", "XCache not loaded");
+}
+else {
+    $xcacheModules = explode(" ", XCACHE_MODULES);
+    $unexpectedModules = array_intersect($xcacheModules, array("coverager", "disassembler"));
+    if ($unexpectedModules) {
+        result(
             "warning"
-            , _T("Out of memory happened when trying to write to cache")
-            , "Increase xcache.size and/or xcache.var_size"
+            , implode("\n", $unexpectedModules)
+            , _T("Acceptable. Module(s) listed above are built into XCache but not for production server\n"
+                . "Leave it as is if you're feeling good.\n"
+                . "Re-configure XCache with the above module(s) disabled if you're strict with server security.")
             );
     }
     else {
-        note("info", _T('XCache Memory Size'));
-    }
-
-    $errors = false;
-    foreach ($cacheInfos as $cacheInfo) {
-        if ($cacheInfo['errors']) {
-            $errors = true;
-            break;
-        }
-    }
-    if ($errors) {
-        note(
-            "warning"
-            , _T("Error happened when compiling at least one of your PHP code")
-            , _T("This usually means there is syntax error in your PHP code. Enable PHP error_log to see what parser error is it, fix your code")
-            );
-    }
-    else {
-        note("info", _T('All PHP scripts seem fine'));
-    }
-
-    /*
-    if ($ini['xcache.count'] < cpucount() * 2) {
-    }
-
-    if ($ini['xcache.size'] is small $ini['xcache.slots'] is big) {
-    }
-
-    if ($ini['xcache.readonly_protection']) {
-    }
-
-    if ($cache['compiling']) {
-    }
-
-    if ($cache['compiling']) {
-    }
-
-    if ($cache['disabled']) {
-    }
-    */
-}
-
-/*
-
-if (($coredumpFiles = globCoreDumpFiles()) {
-}
-
-if (module not for server) {
-}
-
-$phpVersion = php_version();
-foreach ($knownUnstablePhpVersion as $unstablePhpVersion => $reason) {
-    if (substr($phpVersion, 0, strlen($unstablePhpVersion)) == $unstablePhpVersion) {
-        // ..
-    }
-}
-
-if (Zend Optimizer is loaded, zend optimize level > 0) {
-    warn("disabled");
-}
-
-*/
+        result("info", _T('Idle'));
+    }
+}
+// }}}
+checking(_T("XCache test setting")); // {{{
+if (!$xcacheLoaded) {
+    result("skipped", "XCache not loaded");
+}
+else if ((int) ini_get('xcache.test') == 1) {
+    result(
+        "warning"
+        , _T("Enabled")
+        , _T("xcache.test is for testing only, not for server. set it to off")
+        );
+}
+else {
+    result("info", _T('Disabled'));
+}
+// }}}
+checking(_T("PHP Version")); // {{{
+$phpVersion = phpversion();
+$unstablePhpVersionReason = null;
+foreach ($knownUnstablePhpVersions as $knownUnstablePhpVersion) {
+    list($compareOp, $unstablePhpVersion, $reason) = $knownUnstablePhpVersion;
+    if ($compareOp) {
+        $isUnstable = version_compare($phpVersion, $unstablePhpVersion, $compareOp);
+    }
+    else {
+        $isUnstable = substr($phpVersion, 0, strlen($unstablePhpVersion)) == $unstablePhpVersion;
+    }
+
+    if ($isUnstable) {
+        $unstablePhpVersionReason = $reason;
+        break;
+    }
+}
+if ($unstablePhpVersionReason) {
+    result("error"
+            , _T("The version of PHP you're using is known to be unstable: ") . $unstablePhpVersionReason
+            , _T("Upgrade to new version of PHP"));
+}
+else {
+    result("info", _T("Looks good"));
+}
+// }}}
+checking(_T("Extension Compatibility")); // {{{
+$loadedZendExtensions = get_loaded_extensions(true);
+if (array_search("Zend Optimizer", $loadedZendExtensions) !== false) {
+    result(
+        "warning"
+        , _T("Zend Optimizer loaded")
+        , _T("Optimizer feature of 'Zend Optimizer' is disabled by XCache due to compatibility reason; the Loader of it is still available, encoded files are still supported")
+        );
+}
+// }}}
 
 include "./diagnosis.tpl.php";