init script failure and ulimit

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Hi,

The first of the init scripts, here:

http://directory.fedora.redhat.com/wiki/Howto:SysVInit

(URL to script:  http://www.directory.fedora.redhat.com/download/FedoraDirectoryServer-init.d)

... does not start the Fedora Directory Server on boot if the system ulimit
has been changed before the installation of FDS.  If FDS detects a higher
ulimit then it will write:

(e.g.)
nsslapd-maxdescriptors: 8192

to:

/opt/fedora-ds/slapd-(servername)/config/dse.ldif

So that when the script above is run during bootup, the following message
will be generated in the logs, and FDS won't start:

  dse - The entry cn=config in file /opt/fedora-ds/slapd-fc3-dbw-1/config/dse.ldif
  is invalid, error code 53 (DSA is unwilling to perform) - nsslapd-maxdescriptors:
  invalid value 8192, maximum file descriptors must range from 1 to 1024 (the
  current process limit)

To fix this, insert the string:

ulimit -n 8192

... somewhere near the top of the script.  e.g.:

myName=`basename $0`
fdsRoot="/opt/fedora-ds"
ulimit -n 8192


This problem is likely to be caused because the /opt/fedora-ds/setup/setup
script emits the following messages if it detects a low ulimit:

WARNING: There are only 1024 file descriptors (hard limit) available, which
limit the number of simultaneous connections.

WARNING: There are only 1024 file descriptors (soft limit) available, which
limit the number of simultaneous connections.

Changing the ulimit to 8192 in /etc/security/limits.conf makes the above
setup problem go away but then causes the startup script to fail.

--
Del

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