[php-maint] Bug#633100: Bug#633100: php5-common: /etc/cron.d/php5 script runs find with fuser process which spawns too much process eats up the system

[Ondřej Surý]

severity 633100 minor
thank you

Hi,

I am sorry, but no size fits all, if you have a busy system you ought to tweak the default settings. Data integrity is more important than performance.

I will make this more clear in the documentation, but the fuser stays as it is unless somebody can come up with smarter solution.

Ondřej Surý

On 8.7.2011, at 14:12, ile <kanisystem at gmail.com> wrote:

> Package: php5-common
> Version: 5.3.6-13
> Severity: important
> Tags: wheezy sid
> 
> 
> 
> -- System Information:
> Debian Release: wheezy/sid
>  APT prefers unstable
>  APT policy: (500, 'unstable'), (500, 'testing'), (500, 'stable'), (1, 'experimental')
> Architecture: i386 (i686)
> 
> Kernel: Linux 2.6.39-2-686-pae (SMP w/8 CPU cores)
> Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
> Shell: /bin/sh linked to /bin/dash
> 
> Versions of packages php5-common depends on:
> ii  libc6                         2.13-10    Embedded GNU C Library: Shared lib
> ii  sed                           4.2.1-9    The GNU sed stream editor
> 
> Versions of packages php5-common recommends:
> ii  php5-suhosin                  0.9.32.1-1 advanced protection module for php
> 
> php5-common suggests no packages.
> 
> -- no debconf information
> 
> from ps axjf:
> 
> 8994 25989 25989  8994 pts/6    25989 S+       0   0:00  |                           \_ find /var/lib/php5/ -depth -mindepth 1 -maxdepth 1 -type f -cmin +24 ! -execdir fuser -s {} ; -delete
> 25989  6542 25989  8994 pts/6    25989 R+       0   0:00  |                               \_ fuser -s ./sess_vo7t73r9tk8fdop15o9isud9j1osvpus
> 6542  6543 25989  8994 pts/6    25989 Z+       0   0:00  |                                   \_ [fuser] <defunct>
> 6542  6544 25989  8994 pts/6    25989 Z+       0   0:00  |                                   \_ [fuser] <defunct>
> 6542  6545 25989  8994 pts/6    25989 Z+       0   0:00  |                                   \_ [fuser] <defunct>
> 6542  6546 25989  8994 pts/6    25989 Z+       0   0:00  |                                   \_ [fuser] <defunct>
> 6542  6547 25989  8994 pts/6    25989 Z+       0   0:00  |                                   \_ [fuser] <defunct>
> 6542  6548 25989  8994 pts/6    25989 Z+       0   0:00  |                                   \_ [fuser] <defunct>
> 6542  6549 25989  8994 pts/6    25989 Z+       0   0:00  |                                   \_ [fuser] <defunct>
> 6542  6550 25989  8994 pts/6    25989 Z+       0   0:00  |                                   \_ [fuser] <defunct>
> 6542  6551 25989  8994 pts/6    25989 Z+       0   0:00  |                                   \_ [fuser] <defunct>
> 6542  6552 25989  8994 pts/6    25989 Z+       0   0:00  |                                   \_ [fuser] <defunct>
> 6542  6553 25989  8994 pts/6    25989 Z+       0   0:00  |                                   \_ [fuser] <defunct>
> 6542  6554 25989  8994 pts/6    25989 Z+       0   0:00  |                                   \_ [fuser] <defunct>
> 6542  6555 25989  8994 pts/6    25989 Z+       0   0:00  |                                   \_ [fuser] <defunct>
> 6542  6556 25989  8994 pts/6    25989 Z+       0   0:00  |                                   \_ [fuser] <defunct>
> 6542  6557 25989  8994 pts/6    25989 Z+       0   0:00  |                                   \_ [fuser] <defunct>
> 6542  6558 25989  8994 pts/6    25989 Z+       0   0:00  |                                   \_ [fuser] <defunct>
> 6542  6559 25989  8994 pts/6    25989 Z+       0   0:00  |                                   \_ [fuser] <defunct>
> 6542  6560 25989  8994 pts/6    25989 Z+       0   0:00  |                                   \_ [fuser] <defunct>
> 6542  6561 25989  8994 pts/6    25989 Z+       0   0:00  |                                   \_ [fuser] <defunct>
> 6542  6562 25989  8994 pts/6    25989 Z+       0   0:00  |                                   \_ [fuser] <defunct>
> 6542  6563 25989  8994 pts/6    25989 Z+       0   0:00  |                                   \_ [fuser] <defunct>
> 6542  6564 25989  8994 pts/6    25989 Z+       0   0:00  |                                   \_ [fuser] <defunct>
> 6542  6565 25989  8994 pts/6    25989 Z+       0   0:00  |                                   \_ [fuser] <defunct>
> 6542  6566 25989  8994 pts/6    25989 Z+       0   0:00  |                                   \_ [fuser] <defunct>
> 6542  6567 25989  8994 pts/6    25989 Z+       0   0:00  |                                   \_ [fuser] <defunct>
> 6542  6568 25989  8994 pts/6    25989 Z+       0   0:00  |                                   \_ [fuser] <defunct>
> 6542  6569 25989  8994 pts/6    25989 Z+       0   0:00  |                                   \_ [fuser] <defunct>
> 6542  6570 25989  8994 pts/6    25989 Z+       0   0:00  |                                   \_ [fuser] <defunct>
> ....
> 
> fuser can spawn 20000 or more processes making the system unstable
> 
> 
> 
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