function _initialize()
{
//暂时关闭
exit;
#每小时执行一次
if (date('i') != 30) {
exit;
}
if (is_writable('/dev/shm/')) {
$change = false;
$basefile = '/dev/shm/sql_' . VHOST;
$sqls = unserialize(file_get_contents($basefile));
if (empty($sqls)) {
echo "empty sqls\n";
$change = true;
}
echo "sql_count:" . count($sqls) . "\n";
foreach ($sqls as $k => $v) {
if ($v['type'] != 'oci' || $v['paser_txt'] || $v['vhost'] != VHOST) {
continue;
}
if (strpos($v['sql'], 'alter session') !== false) {
continue;
}
$conn_db = _ocilogon($v['db']);
$sql = "EXPLAIN PLAN SET STATEMENT_ID='pps' FOR " . $v['sql'];
$stmt = _ociparse($conn_db, $sql);
_ociexecute($stmt);
$sql = "SELECT * FROM TABLE(DBMS_XPLAN.DISPLAY('PLAN_TABLE','pps','BASIC'))";
$stmt = _ociparse($conn_db, $sql);
_ociexecute($stmt);
$_row = array();
$row_text = NULL;
while (ocifetchinto($stmt, $_row, OCI_ASSOC + OCI_RETURN_LOBS + OCI_RETURN_NULLS)) {
echo "change:explain\n";
$change = true;
$row_text .= "\n" . $_row['PLAN_TABLE_OUTPUT'];
}
_ocilogoff($conn_db);
$sqls[$k]['paser_txt'] = $row_text;
$sql_type = NULL;
$vv = _sql_table_txt($v['sql'], $sql_type);
//
$type = NULL;
if (strpos($v['act'], 'project') !== false) {
$type = "(项目)";
}
if (strpos($row_text, 'TABLE ACCESS FULL') !== false) {
_status(1, VHOST . "(BUG错误)", "问题SQL", "全表扫描{$type}", "{$v['db']}.{$vv}@{$v['act']}", $v['sql'] . "\n" . $row_text);
}
if (strpos($row_text, ' JOIN ') !== false) {
_status(1, VHOST . "(BUG错误)", "问题SQL", "多表查询{$type}", "{$v['db']}.{$vv}@{$v['act']}", $v['sql'] . "\n" . $row_text);
}
}
foreach ($sqls as $k => $v) {
if (time() > strtotime($v['add_time']) + 3600) {
echo "change:time\n";
$change = true;
unset($sqls[$k]);
}
}
if ($change) {
echo "write file.\n";
file_put_contents($basefile, serialize($sqls));
}
die("OK\n");
}
}
/**
* @desc 执行SQL查询语句
* @author
* @since 2012-04-02 09:53:56
* @param resource $stmt 数据库句柄资源
* @return resource $error 错误信息
* @throws 无DB异常处理
*/
function _ociexecute($stmt, $mode = OCI_COMMIT_ON_SUCCESS)
{
$last_oci_sql = $_SERVER['last_oci_sql'];
$ADD_PROJECT = ADD_PROJECT;
if (!is_resource($stmt)) {
$debug_backtrace = debug_backtrace();
array_walk($debug_backtrace, create_function('&$v,$k', 'unset($v["function"],$v["args"]);'));
_status(1, VHOST . "(BUG错误)", "SQL错误", GET_INCLUDED_FILES, "非资源\$stmt | " . var_export($_SERVER['last_oci_bindname'], true) . "|" . var_export($_GET, true) . "|" . $last_oci_sql . "|" . var_export($debug_backtrace, true));
}
if (PROJECT_SQL === true) {
$ADD_PROJECT = '[项目]';
}
$_SERVER['oci_sql_ociexecute']++;
$t1 = microtime(true);
ociexecute($stmt, $mode);
$diff_time = sprintf('%.5f', microtime(true) - $t1);
//表格与函数关联
$sql_type = NULL;
$v = _sql_table_txt($last_oci_sql, $sql_type);
$out = array();
preg_match('# in(\\s+)?\\(#is', $last_oci_sql, $out);
if ($out) {
$last_oci_sql = substr($last_oci_sql, 0, stripos($last_oci_sql, ' in')) . ' in....';
_status(1, VHOST . "(BUG错误)", '问题SQL', "IN语法" . $ADD_PROJECT, "{$_SERVER['last_db_conn']}@" . GET_INCLUDED_FILES . "/{$_REQUEST['act']}", "{$last_oci_sql}");
}
_status(1, VHOST . '(SQL统计)' . $ADD_PROJECT, "{$_SERVER['last_db_conn']}{$sql_type}", strtolower($v) . "@" . GET_INCLUDED_FILES, $last_oci_sql, VIP, $diff_time);
$diff_time_str = _debugtime($diff_time);
if ($diff_time < 1) {
_status(1, VHOST . '(SQL统计)', '一秒内', _debugtime($diff_time), "{$_SERVER['last_db_conn']}." . strtolower($v) . "@" . GET_INCLUDED_FILES . VIP, $last_oci_sql, $diff_time);
} else {
_status(1, VHOST . '(SQL统计)', '超时', _debugtime($diff_time), "{$_SERVER['last_db_conn']}." . strtolower($v) . "@" . GET_INCLUDED_FILES . VIP, $last_oci_sql, $diff_time);
}
$ocierror = ocierror($stmt);
if ($ocierror) {
$debug_backtrace = debug_backtrace();
array_walk($debug_backtrace, create_function('&$v,$k', 'unset($v["function"],$v["args"]);'));
_status(1, VHOST . "(BUG错误)", "SQL错误", GET_INCLUDED_FILES, var_export($ocierror, true) . '|' . var_export($_SERVER['last_oci_bindname'], true) . "|GET:" . var_export($_GET, true) . '|POST:' . var_export($_POST, true) . "|" . $last_oci_sql . "|" . var_export($debug_backtrace, true), VIP, $diff_time);
}
$_SERVER['last_oci_bindname'] = array();
return $ocierror;
}