我有一个同时运行 4 个机器人的爬虫脚本，每个机器人都在一个新选项卡中打开，并且通常这样做：
1/ 连接到抓取所需的 db + set vars。
2/ 从 db 获取 URL 目标。
3/ 使用 CURL 或 file_get_content 获取内容。
4/ 使用 simple_html_dom 设置“$html”。
5/包括一个“引擎”来抓取和操纵内容。
6/ 最后 - 检查它是否正常并优化内容并将其存储在数据库中
7/ 为 X 链接执行此操作。X 链接后会刷新页面并继续爬取过程。
每件事都像魔术一样工作！但最近几分钟后（不是同一时间），所有机器人都
停止了（没有错误闪烁），有时只有 3 个......
有一个脚本可以设置时间间隔，每 Y 分钟刷新一次页面。如果它们被卡住，那就是让我的
机器人继续工作，但这不是解决这个问题的方法。
我已经检查了 apache 错误日志，它没有显示任何奇怪的东西。
你有什么主意吗？？？
收缩代码：（带注释）
ini_set('user_agent', 'Mozilla/5.0 (Windows NT 6.1) AppleWebKit/536.5 (KHTML, like Gecko) Chrome/19.0.1084.56 Safari/536.5');
error_reporting(E_ALL);
include ("peulot/stations1.php");//with connection and vars
include_once('simple_html_dom.php');
//DEFINE VALUES:
/*
here vars are declared and set
*/
echo "
<script language=javascript>
var int=self.setInterval(function(){ refresh2(); },".$protect.");
var counter;
function refresh2() {
geti();
link = 'store_url_beta.php?limit_link=".$limit_link."&storage_much=".$dowhile."&jammed=".($jammed_count+=1)."&bot=".$sbot."&counter=';
link = link+counter;
window.location=link;
}
function changecolor(answer)
{
document.getElementById(answer).style.backgroundColor = \"#00FF00\";
}
</script>";//this is the refresh if jammed
//some functions:
/*
function utf8_encode_deep --> for encoding
function hexbin --> for simhash fingerprint
function Charikar_SimHash --> for simhash fingerprint
function SimHashfingerprint --> for simhash fingerprint
*/
while ($i<=$dowhile)
{
//final values after crawling:
$link_insert="";
$p_ele_insert="";
$title_insert="";
$alt_insert="";
$h_insert="";
$charset="";
$text="";
$result_key="";
$result_desc="";
$note="";
///this connection is to check that there are links to crawl in data base... + grab the line for crawl.
$sql = "SELECT * FROM $table2 WHERE crawl='notyet' AND flag_avoid $regex $bot_action";
$rs_result = mysql_query ($sql);
$idr = mysql_fetch_array($rs_result);
unset ($sql);
unset ($rs_result);
set_time_limit(0);
$qwe++;
$target_url = $idr['live_link'];//set the link we are about to crawl now.
$matches_relate = $idr['relate'];//to insert at last
$linkid = $idr['id'];//link id to mark it as crawled in the end
$crawl_status = $idr['crawl'];//saving this to check if we update storage table or insert new row
$bybot_status = $idr['by_bot'];//saving this to check if we update storage table or insert new row
$status ="UPDATE $table2 SET crawl='working', by_bot='".$bot."', flag_avoid='$stat' WHERE id='$linkid'";
if(!mysql_query($status)) die('problem15');
$ch = curl_init();
curl_setopt($ch, CURLOPT_USERAGENT, 'Mozilla/5.0 (Windows NT 6.1) AppleWebKit/536.5 (KHTML, like Gecko) Chrome/19.0.1084.56 Safari/536.5');
curl_setopt($ch, CURLOPT_URL, $target_url);
curl_setopt($ch, CURLOPT_COOKIEJAR, "cookie.txt");
curl_setopt($ch, CURLOPT_COOKIEFILE, "cookie.txt");
curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true);
curl_setopt($ch, CURLOPT_HEADER, 0);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
$str = curl_exec($ch);
curl_close($ch);
if (strlen($str)<100)
{
//do it with file get content
}
if (strlen($html)>500)
{
require("engine.php");//GENERATE FATAL ERROR IF CRAWLER ENGINE AND PARSER NOT AVAILABLE
flush();//that will flush a result without any refresh
usleep(300);
//before inserting into table storage check if it was crawled before and then decide if to insert or update:
if ($crawl_status=="notyet"&&$bybot_status=="notstored")
{
//insert values
}
else
{
//update values
}
flush();//that will flush a result without any refresh
usleep(300);
if ($qwe>=$refresh) //for page refresh call
{
$secounter++;//counter for session
//optimize data
echo "<script type='text/javascript'>function refresh() { window.location='store_url_beta.php?limit_link=".$limit_link."&counter=".$i."&secounter=".$secounter."&storage_much=".$dowhile."&jammed=".$jammed."&bot=".$sbot."'; } refresh(); </script>";
}
}//end of if html is no empty.
else
{//mark a flag @4 and write title jammed!
//here - will update the table and note that its not possible to crawl
if ($qwe>=$refresh)
{
$secounter++;//counter for session
//optimize data
echo "<script type='text/javascript'>function refresh() { window.location='store_url_beta.php?limit_link=".$limit_link."&counter=".$i."&secounter=".$secounter."&storage_much=".$dowhile."&jammed=".$jammed."&bot=".$sbot."'; } refresh(); </script>";
}
}//end of else cant grab nothing
unset($html);
}//end of do while
mysql_close();
echo "<script language=javascript> window.clearInterval(int); </script>";
编辑：
经过无尽的测试和记录方法（遵循杰克的建议）我什么也没找到！机器人停止时唯一发生的事情是在 apache 日志中：
[Thu Oct 25 01:01:33 2012] [error] [client 127.0.0.1] File does not exist: C:/wamp/www/favicon.ico
zend_mm_heap corrupted
[Thu Oct 25 01:01:51 2012] [notice] Parent: child process exited with status 1 -- Restarting.
[Thu Oct 25 01:01:51 2012] [notice] Apache/2.2.22 (Win64) mod_ssl/2.2.22 OpenSSL/1.0.1c PHP/5.3.13 configured -- resuming normal operations
[Thu Oct 25 01:01:51 2012] [notice] Server built: May 13 2012 19:41:17
[Thu Oct 25 01:01:51 2012] [notice] Parent: Created child process 736
[Thu Oct 25 01:01:51 2012] [warn] Init: Session Cache is not configured [hint: SSLSessionCache]
[Thu Oct 25 01:01:51 2012] [notice] Child 736: Child process is running
[Thu Oct 25 01:01:51 2012] [notice] Child 736: Acquired the start mutex.
[Thu Oct 25 01:01:51 2012] [notice] Child 736: Starting 200 worker threads.
[Thu Oct 25 01:01:51 2012] [notice] Child 736: Starting thread to listen on port 80.
[Thu Oct 25 01:01:51 2012] [notice] Child 736: Starting thread to listen on port 80.
[Thu Oct 25 01:01:51 2012] [error] [client 127.0.0.1] File does not exist: C:/wamp/www/favicon.ico
这条线很神秘，我真的不知道该怎么办，请帮帮我！
[Thu Oct 25 01:01:51 2012] [notice] 父进程：子进程以状态 1 退出——正在重新启动。