[Fedora-directory-users] not enough file descriptors

[MJD Shop Account]

I found that the user limits were by default 1024 and I could not set the nsslapd-maxdescriptors higher than that, so I upped the default limits and changed nsslapd-maxdescriptors to 2048.  We'll see how that works out.  Thanks Richard and George!

-----Original Message-----
>From: Richard Megginson <rmeggins at redhat.com>
>Sent: Mar 2, 2007 5:55 PM
>To: MJD Shop Account <mjdshop at earthlink.net>, "General discussion list for the Fedora Directory server project." <fedora-directory-users at redhat.com>
>Cc: George Holbert <gholbert at broadcom.com>
>Subject: Re: [Fedora-directory-users] not enough file descriptors
>
>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
>>>>
>>>>   
>>>>       
>>>
>>>     
>>
>> --
>> Fedora-directory-users mailing list
>> Fedora-directory-users at redhat.com
>> https://www.redhat.com/mailman/listinfo/fedora-directory-users
>>