Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]

Groups > linux.kernel > #1583241 > unrolled thread

counting file descriptors with a cgroup controller

Back to article view | Back to linux.kernel

This discussion starts older than the indexed window; earlier articles aren't shown. The article labeled Started by below is the oldest one visible, not the original post.

Contents

  counting file descriptors with a cgroup controller Łukasz Stelmach <l.stelmach@samsung.com> - 2017-02-17 10:40 +0100
    Re: counting file descriptors with a cgroup controller Krzysztof Opasiak <k.opasiak@samsung.com> - 2017-02-17 12:40 +0100

#1583241 — counting file descriptors with a cgroup controller

[Multipart message — attachments visible in raw view] — view raw

Hi,

We need to limit and monitor the number of file descriptors processes
keep open. If a process exceeds certain limit we'd like to terminate it
and restart it or reboot the whole system. Currently the RLIMIT API
allows limiting the number of file descriptors but to achieve our goals
we'd need to make sure all programmes we run handle EMFILE errno
properly. That is why we consider developing a cgroup controller that
limits the number of open file descriptors of its members (similar to
 memory controler).

Any comments? Is there any alternative that:

+ does not require modifications of user-land code,
+ enables other process (e.g. init) to be notified and apply policy.

Kind regards,
-- 
Łukasz Stelmach
Samsung R&D Institute Poland
Samsung Electronics

[toc] | [next] | [standalone]

#1583356

+ cgroups mailing list
+ cgroup maintainers

On 02/17/2017 10:37 AM, Łukasz Stelmach wrote:
> Hi,
> 
> We need to limit and monitor the number of file descriptors processes
> keep open. If a process exceeds certain limit we'd like to terminate it
> and restart it or reboot the whole system. Currently the RLIMIT API
> allows limiting the number of file descriptors but to achieve our goals
> we'd need to make sure all programmes we run handle EMFILE errno
> properly. That is why we consider developing a cgroup controller that
> limits the number of open file descriptors of its members (similar to
>  memory controler).
> 
> Any comments? Is there any alternative that:
> 
> + does not require modifications of user-land code,
> + enables other process (e.g. init) to be notified and apply policy.
> 
> Kind regards,
> 

-- 
Krzysztof Opasiak
Samsung R&D Institute Poland
Samsung Electronics

[toc] | [prev] | [standalone]

Back to top | Article view | linux.kernel

csiph-web