[Freeipa-devel] [PATCH 0091] Perform dirsrv tuning at platform level

[Nathaniel McCallum]

On Mon, 2013-08-19 at 14:48 +0200, Tomas Babej wrote:
> Hi,
> 
> When configuring the 389 Directory Server instance, we tune it
> so that number of file descriptors available to the DS is increased
> from the default 1024 to 8192.
> 
> There are platform specific steps that need to be conducted
> differently on systemd compatible platforms and sysV compatible
> platforms.
> 
> systemd: set LimitNOFILE to 8192 in /etc/sysconfig/dirsrv.systemd
> sysV: set ulimit -n 8192 in /etc/sysconfig/dirsrv
>        set ulimit - nofile 8192 in /etc/security/limits.conf
> 
> https://fedorahosted.org/freeipa/ticket/3823

I'd prefer the use of 'with' in the RedHatDirectoryService:
# check limits.conf
need_limits = True
with open("/etc/security/limits.conf") as f:
  for line in f:
      sline = line.strip()
      if not sline.startswith(DS_USER):
          continue
      if sline.find('nofile') == -1:
          continue
      # ok we already have an explicit entry for user/nofile
      need_limits = False

... and ...

with open("/etc/sysconfig/dirsrv", "a+") as f:
    f.write('ulimit -n %s\n' % str(num))

Nathaniel