为什么PHP脚本可能会停止

为什么PHP脚本可能会停止

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问题描述

我跑在PHP真正的长期任务。这是一个网站履带式和它要有礼貌和睡眠,持续5秒每页为prevent服务器过载。脚本开头:

I'm running really long task in php. It's a website crawler and It has to be polite and sleep for 5 seconds each page to prevent server overloading. Script starts with:

ignore_user_abort(1);
session_write_close();
ob_end_clean();
while (@ob_end_flush());
set_time_limit(0);
ini_set('max_execution_time',0);

几个小时后(3-7h之间)脚本死亡,没有任何明显的原因。
我检查

After few hours (between 3-7h) script dies without any visible reason.I've checked


  • Apache的错误日志(无)

  • php_errors.log(无)

  • 错误输出(调试输出的10 578 467b,没有错误)

  • 内存消耗(稳定,3M左右从 memory_get_usage(真)检查每5秒,限制设置为512M)

  • apache error log (nothing)
  • php_errors.log (nothing)
  • output for errors (10 578 467b of debug output, no errors)
  • memory consumption (stable, around 3M from memory_get_usage(true) checked every 5 sec, limit set to 512M)

这不是浏览器,因为我是用wget和Chrome浏览器检查与类似的原因。
输出将被送到每2-3秒的浏览器,所以我不认为这是错+ I忽略用户中止。

It's not browser, cause I was using wget and chrome to check with the similar reason.Output is sent to browser every 2-3 seconds, so I don't think that's the fault + I ignore user abort.

是否有任何其他地方我可以检查发现的问题?

Is there any other place I can check to find the issue?

推荐答案

我觉得有一个在你的脚本,而不是Apache。

I think there's a problem in the rest of your script, not Apache.

尝试分析使用与应用程序光探查如并记录,可能是

Try profiling your application using the register_tick_function with a light profiler like this and logging the memory usage, may be that.

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08-19 19:26