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小技巧找出一个php的cron脚本出问题的代码行

Jun 06, 2016 pm 07:48 PM
cron php code find out Skill Script

这个小技巧虽然很小,但是很有用。 我写了一个cron脚本,但是隔一天发现,这个昨天的cron脚本还一直在跑着,没有停下来,一定是里面有个程序堵住了。 但是如果我重新跑又需要很多时间。这个怎么办? 现在最需要就是要知道程序停在了那行代码上了。使用gdb:

这个小技巧虽然很小,但是很有用。

 

我写了一个cron脚本,但是隔一天发现,这个昨天的cron脚本还一直在跑着,没有停下来,一定是里面有个程序堵住了。

但是如果我重新跑又需要很多时间。这个怎么办?

 

现在最需要就是要知道程序停在了那行代码上了。使用gdb:

 

$sudo gdb -p <span>14973</span><span> 
(gdb) print (</span><span>char</span> *)executor_globals.active_op_array-><span>filename 
$</span><span>1</span> = <span>0x9853a34</span> <span>"</span><span>/home/xinhailong/test/php/test.php</span><span>"</span><span> 
(gdb) print (</span><span>char</span> *)executor_globals.active_op_array-><span>function_name 
$</span><span>2</span> = <span>0x9854db8</span> <span>"</span><span>test1</span><span>"</span><span> 
(gdb) print executor_globals</span>->current_execute_data->opline-><span>lineno 
$</span><span>3</span> = <span>4</span>
Copy after login

 

好了,我们就知道了,这个程序停在了/home/xinhailong/test/php/test.php文件的第4行代码中的test1函数内。

于是就能进行后续的分析了。

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