[OpenAFS] [Q] klog becomes slow...

Neulinger, Nathan nneul@umr.edu
Wed, 9 Apr 2003 09:16:16 -0500


Should have come with your install... look under /usr/afsws/etc. If you
don't have /usr/afsws, I have no idea where to look as your machine must
not be using transarc style paths. Should probably be in same place as
the vos command.=20

-- Nathan

------------------------------------------------------------
Nathan Neulinger                       EMail:  nneul@umr.edu
University of Missouri - Rolla         Phone: (573) 341-4841
Computing Services                       Fax: (573) 341-4216


> -----Original Message-----
> From: S.J.Chun [mailto:chunsj@embian.com]=20
> Sent: Wednesday, April 09, 2003 9:06 AM
> To: openafs-info@openafs.org; Neulinger, Nathan
> Subject: RE: [OpenAFS] [Q] klog becomes slow...
>=20
>=20
> Thanks for your reply. I'm using Linux for service platform=20
> but cannot find kdump
> program. Where is it?
>=20
>   ----- Original Message -----
>   From: "Neulinger, Nathan" <nneul@umr.edu>
>   To: "S.J.Chun" <chunsj@embian.com>,openafs-info@openafs.org
>   Sent: Wed, 9 Apr 2003 08:20:24 -0500
>   Subject: RE: [OpenAFS] [Q] klog becomes slow...
>=20
>   Most likely the token is not being destroyed. What platform=20
> is this on?
>   If linux, this is definately a problem... I have a script=20
> you can run
>   from cron that will clean up the tokens that haven't been=20
> destroyed...
>  =20
>   Basically what happens is a structure in the kernel starts=20
> getting very
>   large, and incredibly slow to traverse.
>  =20
>   If you want to see if this is the problem, issue "kdump=20
> -users | tail".
>   The number of entries should be close to the number of=20
> currently open
>   sessions. If not, and it's much larger, then you need to=20
> get rid of the
>   tokens.
>  =20
>   -- Nathan
>  =20
>   ------------------------------------------------------------
>   Nathan Neulinger                       EMail:  nneul@umr.edu
>   University of Missouri - Rolla         Phone: (573) 341-4841
>   Computing Services                       Fax: (573) 341-4216
>  =20
>  =20
>   > -----Original Message-----
>   > From: openafs-info-admin@openafs.org=20
>   > [mailto:openafs-info-admin@openafs.org] On Behalf Of S.J.Chun
>   > Sent: Wednesday, April 09, 2003 1:32 AM
>   > To: openafs-info@openafs.org
>   > Subject: [OpenAFS] [Q] klog becomes slow...
>   >=20
>   >=20
>   > Hi,
>   >=20
>   > We're using OpenAFS for file service and with your kind helps=20
>   > we can acheive up to several megabytes of
>   > download speed per user :-)
>   > But there happened another problem: after some time(about a=20
>   > week or so), it takes up to 4 seconds
>   > to process klog. Our client program uses SOAP for file=20
>   > tranferring and client server communication and
>   > during each SOAP call, klog is done everytime. So klog=20
>   > processing time is very annoying one. Rebooting
>   > the AFS client machine removes this slow klog process problem=20
>   > but this is not right way of solving problem.
>   > Why this kind of problem occurs? Yes, we do not unlog each=20
>   > time because it seems that the token is
>   > destroyed automatically after the calling process dies.
>   >=20
>   > Thanks in advance.
>   > _______________________________________________
>   > OpenAFS-info mailing list
>   > OpenAFS-info@openafs.org
>   > https://lists.openafs.org/mailman/listinfo/openafs-info
>   >=20
>  =20
>=20