[PVFS-users] A strange problem when download a file from /mnt/pvfs with FTP client.

[Rob Ross]

Hi Kevin,

Regarding the module, you might want to load it via an init script.

To clarify, are you downloading *into* a PVFS volume (i.e. client is 
writing into PVFS volume), or are you downloading *from* a PVFS volume 
(i.e. server is reading from a PVFS volume), or both?

Are there any messages in any of the log files (kernel log, mgr log, iod 
logs)?

Any particular reason why you are using PVFS instead of PVFS2?

Thanks,

Rob

Kevin.zsc wrote:
> Hi Marcelo and all,
>  
> I have added the followed two lines to all my clients.
> alias pvfsclient pvfs
> options pvfs buffer=dynamic
> then I reboot all my clients,I/O-data and meta-data server.
> But the problem still exists.
> I noticed that there is not pvfs module loaded after I reboot a client 
> and used the "lsmod" at prompt.
> Are there any other issues that should be pay attention to?
>  
> Best regards
> Kevin Zeng
> On 8/28/05, *Marcelo Matus* <mmatus at acms.arizona.edu 
> <mailto:mmatus at acms.arizona.edu>> wrote:
> 
>     Well, just to be sure, add the line
> 
>     options pvfs buffer=dynamic
> 
>     to all the clients.
> 
>     Marcelo
> 
> 
>     Kevin.zsc wrote:
> 
>      > Hi, Marcelo and all,
>      >
>      > I viewed the /etc/modules.conf file in my pvfs-meta server, no buffer
>      > option are set in this file.
>      > [root at controlNode /]# cat /etc/modules
>      > alias eth0 e1000
>      > alias scsi_hostadapter aic79xx
>      > alias scsi_hostadapter1 ata_piix
>      > alias usb-controller usb-uhci
>      > alias usb-controller1 ehci-hcd
>      >
>      > Should I add the buffer=dynamic into /etc/modules.conf ?
>      >
>      > Best regards
>      > Kevin zeng
>      > On 8/27/05, *Marcelo Matus* <mmatus at acms.arizona.edu
>     <mailto:mmatus at acms.arizona.edu>
>      > <mailto:mmatus at acms.arizona.edu
>     <mailto:mmatus at acms.arizona.edu>>> wrote:
>      >
>      >     Do you have the buffer option in the /etc/modules.conf?
>      >
>      >     If so, be sure you are using buffer=dynamic, since the mapped
>      >     option has troubles with the RHEL kernel, well, that  is
>      >     what we observed here.
>      >
>      >     Marcelo
>      >
>      >
>      >     Kevin.zsc wrote:
>      >
>      >     > Dear members,
>      >     >
>      >     > I have installed and configued PVFS-1.6.3 in our Linux
>      >     cluster(OS,RHEL
>      >     > AS3U3).
>      >     > The ftp server in our linux cluster nodes is vsftp, which is
>      >     > distributed with RHEL AS3U3.
>      >     > When I download the files in /mnt/pvfs directory with FTP
>     client
>      >     > (FlashFXP) or Command Lines FTP(get), the first time
>     downloading
>      >     can
>      >     > only download the file name with size 0 byte. While I
>     downloaded the
>      >     > file the second time, it work well.  I am puzzled by this
>      >     problem. Why
>      >     > this happened? How to figure out it?
>      >     > Thanks in advance.
>      >     >
>      >     > Best Regards
>      >     > Kevin Zeng