[Fedora-directory-users] Re: Re: FDS hangs

Richard Megginson rmeggins at redhat.com
Wed Aug 23 13:51:59 UTC 2006


Saravana Kumar wrote:
> Richard Megginson wrote:
>
>   
>> Saravana Kumar wrote:
>>     
>>> Richard Megginson wrote:
>>>
>>>   
>>>       
>>>> You need to increase the number of file descriptors.
>>>> See http://directory.fedora.redhat.com/wiki/Performance_Tuning#Linux
>>>> and
>>>> http://www.redhat.com/docs/manuals/dir-server/pdf/ds71cli.pdf - search
>>>> for nsslapd-maxdescriptors
>>>>
>>>> Saravana Kumar wrote:
>>>>     
>>>>         
>>>>> Hi,
>>>>>
>>>>> I am running FDS in one of my servers. It serves authinfo(username &
>>>>> password) and automount info to about 50 clients. During peak
>>>>> hours(when the number of connections to the server are high) it is very
>>>>> difficult to operate in the client machines and the server fails to
>>>>> respond. Then i end up in hard rebooting the server. After reboot slapd
>>>>> would not start(i have scripts to start fds and fds-admin). I have to
>>>>> run ./setup/setup again to start the fds-admin.
>>>>>
>>>>> Can some one tell me why is this happenning? Is it a bug?
>>>>>
>>>>> The only error i see in the slapd logs is this:
>>>>> 17/Aug/2006:15:18:15 +051800] - Listening for new connections again
>>>>> [17/Aug/2006:15:18:15 +051800] - Not listening for new connections -
>>>>> [too
>>>>> many fds open
>>>>>
>>>>>
>>>>> Thanks in advance for any pointers.
>>>>>
>>>>> ---
>>>>> SK
>>>>>
>>>>> --
>>>>> Fedora-directory-users mailing list
>>>>> Fedora-directory-users at redhat.com
>>>>> https://www.redhat.com/mailman/listinfo/fedora-directory-users
>>>>>
>>>>>       
>>>>>           
>>> Thanks Richard,
>>>
>>> After posting here i infact got to this page:
>>> http://www.redhat.com/docs/manuals/dir-server/cli/config.htm
>>> and checked nsslapd-maxdescriptors(it is 1024) and
>>> nsslapd-ntconntablesize(is 1024). My /proc/sys/fs/file-max is already
>>> 102432.
>>>
>>> I tried to change the nslapd-ntconntablesize from adminconsole, it failed
>>> with the error nsslapd-maxdescriptor is 1024. Then i tried to change
>>> maxdescriptor to 4096 it failed with the error maxfile descriptors must
>>> range from 1 to 1024 (the current file descriptors).
>>>   
>>>       
>> You may have to edit the slapd-instance/start-slapd script to set ulimit
>> -n 8192 or something like that first.  What does ulimit -n say?
>>     
> ulimit -n says 1024.
>
> It set the value manually like this ulimit -n 8192(also put it
> in /etc/profile).
Try putting it in /opt/fedora-ds/slapd-instance/start-slapd
> Restarted fds admin server.
admin server or directory server?
> Tried to change the
> nsslapd-maxdescriptors but it gives the same error again.
>   
Yes.  The ulimit -n didn't take effect for the directory server for some 
reason.
> TIA,
> SK
>
>
> --
> Fedora-directory-users mailing list
> Fedora-directory-users at redhat.com
> https://www.redhat.com/mailman/listinfo/fedora-directory-users
>   
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