[OpenAFS] Client synchronization issues/Client caches are not
being updated
Ken Elkabany
Ken@Elkabany.com
Tue, 2 Mar 2010 02:49:48 -0800
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Thanks! You were all spot on. Our internal firewalls had recently been
updated to block port 7001.
Ken
On Tue, Mar 2, 2010 at 2:17 AM, Christof Hanke <christof.hanke@rzg.mpg.de>w=
rote:
> Am Dienstag, 2. M=E4rz 2010 11:01:22 schrieb Ken Elkabany:
>
> > I have six client machines all accessing a single openafs server. The
>
> > server and five clients are running Ubuntu 9.10 with openafs 1.4.10.
> About
>
> > 80% of the time when a client modifies files on the afs, the changes ar=
e
>
> > not reflected on the other clients, even after the file has been closed
> (a
>
> > zip file is unpacked in a directory, replacing all identically named
>
> > files). If a new file is copied, often times the other clients will not
> see
>
> > it. Sometimes, after a couple minutes, the files are appropriately
> updated.
>
> > Oddly enough, the sixth client, which is running Ubuntu 9.04 with opena=
fs
>
> > 1.4.9, always has the changes properly reflected on it. However, I cann=
ot
>
> > guarantee that the openafs client version is the issue as the sixth
> client
>
> > is not running in the same conditions (not in a virtual machine), and i=
s
>
> > also running external to the local area network of the other four
> clients.
>
> > Is this expected behavior? I don't recall this being a problem when all
> our
>
> > servers were on openafs 1.4.9. Is there a way to force the
> synchronization?
>
> >
>
> This synchronization should happen automatically by the fileserver (using
> "Callbacks"). For that to happen the fileserver must be able to talk to t=
he
> clients (UDP port 7001).
>
> Check if you have a firewall on your clients with Ubuntu 9.10 preventing
> that.
>
> Just a guess, I don't use Ubuntu.
>
> Christof
>
> > Thanks,
>
> >
>
> > Ken
>
>
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Thanks! You were all spot on. Our internal firewalls had recently been upda=
ted to block port 7001.<div><br></div><div>Ken<br><br><div class=3D"gmail_q=
uote">On Tue, Mar 2, 2010 at 2:17 AM, Christof Hanke <span dir=3D"ltr"><=
<a href=3D"mailto:christof.hanke@rzg.mpg.de">christof.hanke@rzg.mpg.de</a>&=
gt;</span> wrote:<br>
<blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:1p=
x #ccc solid;padding-left:1ex;">
<div style=3D"font-family:'Sans Serif';font-size:10pt;font-weight:4=
00;font-style:normal">
<p style=3D"margin-top:0px;margin-bottom:0px;margin-left:0px;margin-right:0=
px;text-indent:0px">Am Dienstag, 2. M=E4rz 2010 11:01:22 schrieb Ken Elkaba=
ny:</p><div><div></div><div class=3D"h5">
<p style=3D"margin-top:0px;margin-bottom:0px;margin-left:0px;margin-right:0=
px;text-indent:0px">> I have six client machines all accessing a single =
openafs server. The</p>
<p style=3D"margin-top:0px;margin-bottom:0px;margin-left:0px;margin-right:0=
px;text-indent:0px">> server and five clients are running Ubuntu 9.10 wi=
th openafs 1.4.10. About</p>
<p style=3D"margin-top:0px;margin-bottom:0px;margin-left:0px;margin-right:0=
px;text-indent:0px">> 80% of the time when a client modifies files on th=
e afs, the changes are</p>
<p style=3D"margin-top:0px;margin-bottom:0px;margin-left:0px;margin-right:0=
px;text-indent:0px">> not reflected on the other clients, even after the=
file has been closed (a</p>
<p style=3D"margin-top:0px;margin-bottom:0px;margin-left:0px;margin-right:0=
px;text-indent:0px">> zip file is unpacked in a directory, replacing all=
identically named</p>
<p style=3D"margin-top:0px;margin-bottom:0px;margin-left:0px;margin-right:0=
px;text-indent:0px">> files). If a new file is copied, often times the o=
ther clients will not see</p>
<p style=3D"margin-top:0px;margin-bottom:0px;margin-left:0px;margin-right:0=
px;text-indent:0px">> it. Sometimes, after a couple minutes, the files a=
re appropriately updated.</p>
<p style=3D"margin-top:0px;margin-bottom:0px;margin-left:0px;margin-right:0=
px;text-indent:0px">> Oddly enough, the sixth client, which is running U=
buntu 9.04 with openafs</p>
<p style=3D"margin-top:0px;margin-bottom:0px;margin-left:0px;margin-right:0=
px;text-indent:0px">> 1.4.9, always has the changes properly reflected o=
n it. However, I cannot</p>
<p style=3D"margin-top:0px;margin-bottom:0px;margin-left:0px;margin-right:0=
px;text-indent:0px">> guarantee that the openafs client version is the i=
ssue as the sixth client</p>
<p style=3D"margin-top:0px;margin-bottom:0px;margin-left:0px;margin-right:0=
px;text-indent:0px">> is not running in the same conditions (not in a vi=
rtual machine), and is</p>
<p style=3D"margin-top:0px;margin-bottom:0px;margin-left:0px;margin-right:0=
px;text-indent:0px">> also running external to the local area network of=
the other four clients.</p>
<p style=3D"margin-top:0px;margin-bottom:0px;margin-left:0px;margin-right:0=
px;text-indent:0px">> Is this expected behavior? I don't recall this=
being a problem when all our</p>
<p style=3D"margin-top:0px;margin-bottom:0px;margin-left:0px;margin-right:0=
px;text-indent:0px">> servers were on openafs 1.4.9. Is there a way to f=
orce the synchronization?</p>
<p style=3D"margin-top:0px;margin-bottom:0px;margin-left:0px;margin-right:0=
px;text-indent:0px">></p>
</div></div><p style=3D"margin-top:0px;margin-bottom:0px;margin-left:0px;ma=
rgin-right:0px;text-indent:0px">This synchronization should happen automati=
cally by the fileserver (using "Callbacks"). For that to happen t=
he fileserver must be able to talk to the clients (UDP port 7001). </p>
<p style=3D"margin-top:0px;margin-bottom:0px;margin-left:0px;margin-right:0=
px;text-indent:0px">Check if you have a firewall on your clients with Ubun=
tu 9.10 preventing that. </p>
<p style=3D"margin-top:0px;margin-bottom:0px;margin-left:0px;margin-right:0=
px;text-indent:0px">Just a guess, I don't use Ubuntu.</p>
<p style=3D"margin-top:0px;margin-bottom:0px;margin-left:0px;margin-right:0=
px;text-indent:0px"></p>
<p style=3D"margin-top:0px;margin-bottom:0px;margin-left:0px;margin-right:0=
px;text-indent:0px">Christof</p>
<p style=3D"margin-top:0px;margin-bottom:0px;margin-left:0px;margin-right:0=
px;text-indent:0px">> Thanks,</p>
<p style=3D"margin-top:0px;margin-bottom:0px;margin-left:0px;margin-right:0=
px;text-indent:0px">></p>
<p style=3D"margin-top:0px;margin-bottom:0px;margin-left:0px;margin-right:0=
px;text-indent:0px">> Ken</p>
<p style=3D"margin-top:0px;margin-bottom:0px;margin-left:0px;margin-right:0=
px;text-indent:0px"></p></div></blockquote></div><br></div>
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