[Fedora-directory-users] not enough file descriptors
Richard Megginson
rmeggins at redhat.com
Fri Mar 2 22:55:48 UTC 2007
MJD Shop Account wrote:
> ah! only 1024. What is considered a reasonable value? Is it setting this or picking it up from the defaults such as ulimits?
>
The server sets this itself. So you have to set the value yourself.
See http://www.redhat.com/docs/manuals/dir-server/pdf/ds71cli.pdf -
search for nsslapd-conntablesize and nsslapd-maxdescriptors
> I assume I need to do this on all of the multi-masters and consumers to be the same, or do I? Does it propagate? I'm not sharing the config tree among different servers.
>
> -----Original Message-----
>
>> From: George Holbert <gholbert at broadcom.com>
>> Sent: Mar 2, 2007 5:16 PM
>> To: MJD Shop Account <mjdshop at earthlink.net>, "General discussion list for the Fedora Directory server project." <fedora-directory-users at redhat.com>
>> Subject: Re: [Fedora-directory-users] not enough file descriptors
>>
>> What is the value of the "nsslapd-maxdescriptors" attribute on cn=config?
>>
>> MJD Shop Account wrote:
>>
>>> I have a problem with running out of file descriptors. I get this repeating message periodically in the /opt/fedora-ds/slapd-<servername>/logs/errors file:
>>> [02/Mar/2007:13:25:45 -0500] - Not listening for new connections - too many fds open
>>> [02/Mar/2007:13:25:46 -0500] - Listening for new connections again
>>> [02/Mar/2007:13:25:47 -0500] - Not listening for new connections - too many fds open
>>> [02/Mar/2007:13:25:47 -0500] - Listening for new connections again
>>> ...
>>>
>>> When this happens, the users cannot log in for long periods and get angry. Imagine that. I do have this in a multi-master configuration with a second master, which is different hardware and does not show this error.
>>>
>>> I read the tuning page http://directory.fedora.redhat.com/wiki/Performance_Tuning#Linux, which recommends updating the filedescriptors limit like so:
>>> echo "64000" > /proc/sys/fs/file-max
>>>
>>> However mine is already well above that:
>>> # cat /proc/sys/fs/file-max
>>> 128456
>>>
>>> How much higher should I be setting it? I am running RHEL 4 update 4, single Pentium III 1.4GHz processor, 1280MB of memory.
>>>
>>> I don't have any settinsg in sysctl.conf or /etc/security/limites for soft/hard limits, how do I tell what the defaults on soft/hard limits are?
>>>
>>> --
>>> Fedora-directory-users mailing list
>>> Fedora-directory-users at redhat.com
>>> https://www.redhat.com/mailman/listinfo/fedora-directory-users
>>>
>>>
>>>
>>
>>
>
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