[OpenAFS] afs: Lost contact with file server xxx.xxx.xxx.x

TIARA System Man sysman@tiara.sinica.edu.tw
Fri, 18 Apr 2008 10:05:54 +0800


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hi guys,

can anyone tell what is wrong with "Lost contact with file server " issue?
that afs clinet is not in the same domain of afs server. the connection
speed is up to 16MB/sec.

my afs server is Scientific Linux SL release 5.0 x86_64 2.6.18-53.1.6.el5 #1
SMP. i use openafs-server-1.4.6-58.SL5.x86_64 rpm.

client kernel is 2.6.18-53.1.13.el5. that is SL5 x86, too. i use
openafs-client-1.4.6-58.SL5.x86_64 rpm in clinet.

following are clinet /var/log/message logs:
Apr 17 10:03:53 hostname kernel: afs: file server xxx.xxx.xxx.x in cell
tiara.sinica.edu.tw is back up (multi-homed address; other same-host
interfaces may still be down)
Apr 17 10:03:53 hostname kernel: afs: file server xxx.xxx.xxx.x in cell
tiara.sinica.edu.tw is back up (multi-homed address; other same-host
interfaces may still be down)
Apr 17 11:34:47 hostname kernel: afs: Lost contact with file server
xxx.xxx.xxx.x in cell tiara.sinica.edu.tw (all multi-homed ip addresses down
for the server)
Apr 17 11:34:47 hostname kernel: afs: Lost contact with file server
xxx.xxx.xxx.x in cell tiara.sinica.edu.tw (all multi-homed ip addresses down
for the server)
Apr 17 11:35:11 hostname kernel: afs: file server xxx.xxx.xxx.x in cell
tiara.sinica.edu.tw is back up (multi-homed address; other same-host
interfaces may still be down)
Apr 17 11:35:11 hostname kernel: afs: file server xxx.xxx.xxx.x in cell
tiara.sinica.edu.tw is back up (multi-homed address; other same-host
interfaces may still be down)
Apr 17 11:45:43 hostname kernel: afs: Lost contact with file server
xxx.xxx.xxx.x in cell tiara.sinica.edu.tw (all multi-homed ip addresses down
for the server)
Apr 17 11:45:43 hostname kernel: afs: Lost contact with file server
xxx.xxx.xxx.x in cell tiara.sinica.edu.tw (all multi-homed ip addresses down
for the server)
Apr 17 11:45:59 hostname kernel: afs: file server xxx.xxx.xxx.x in cell
tiara.sinica.edu.tw is back up (multi-homed address; other same-host
interfaces may still be down)
Apr 17 11:45:59 hostname kernel: afs: file server xxx.xxx.xxx.x in cell
tiara.sinica.edu.tw is back up (multi-homed address; other same-host
interfaces may still be down)
Apr 17 11:56:40 hostname kernel: afs: Lost contact with file server
xxx.xxx.xxx.x in cell tiara.sinica.edu.tw (all multi-homed ip addresses down
for the server)
Apr 17 11:56:40 hostname kernel: afs: Lost contact with file server
xxx.xxx.xxx.x in cell tiara.sinica.edu.tw (all multi-homed ip addresses down
for the server)
Apr 17 11:57:02 hostname kernel: afs: file server xxx.xxx.xxx.x in cell
tiara.sinica.edu.tw is back up (multi-homed address; other same-host
interfaces may still be down)
Apr 17 11:57:02 hostname kernel: afs: file server xxx.xxx.xxx.x in cell
tiara.sinica.edu.tw is back up (multi-homed address; other same-host
interfaces may still be down)
Apr 17 12:07:36 hostname kernel: afs: Lost contact with file server
xxx.xxx.xxx.x in cell tiara.sinica.edu.tw (all multi-homed ip addresses down
for the server)
Apr 17 12:07:36 hostname kernel: afs: Lost contact with file server
xxx.xxx.xxx.x in cell tiara.sinica.edu.tw (all multi-homed ip addresses down
for the server)
Apr 17 12:07:51 hostname kernel: afs: file server xxx.xxx.xxx.x in cell
tiara.sinica.edu.tw is back up (multi-homed address; other same-host
interfaces may still be down)
Apr 17 12:07:51 hostname kernel: afs: file server xxx.xxx.xxx.x in cell
tiara.sinica.edu.tw is back up (multi-homed address; other same-host
interfaces may still be down)
Apr 17 12:18:32 hostname kernel: afs: Lost contact with file server
xxx.xxx.xxx.x in cell tiara.sinica.edu.tw (all multi-homed ip addresses down
for the server)
Apr 17 12:18:32 hostname kernel: afs: Lost contact with file server
xxx.xxx.xxx.x in cell tiara.sinica.edu.tw (all multi-homed ip addresses down
for the server)
Apr 17 12:18:54 hostname kernel: afs: file server xxx.xxx.xxx.x in cell
tiara.sinica.edu.tw is back up (multi-homed address; other same-host
interfaces may still be down)

can anyone give me a hint to debug this issue? thank you.

best, sam

-- 
Sam Tseng
Academia Sinica
Institute of Astronomy and Astrophysics
Tel.: +886-2-33652200 ext 742
Fax: +886-2-23677849

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hi guys,<br><div class="gmail_quote"><br>can anyone tell what is wrong with &quot;Lost contact with file server &quot; issue? that afs clinet is not in the same domain of afs server. the connection speed is up to 16MB/sec.<br>
<br>my afs server is Scientific Linux SL release 5.0 x86_64 2.6.18-53.1.6.el5 #1 SMP. i use openafs-server-1.4.6-58.SL5.x86_64 rpm.<br>
<br>client kernel is 2.6.18-53.1.13.el5. that is SL5 x86, too. i use openafs-client-1.4.6-58.SL5.x86_64 rpm in clinet.<br><br>following are clinet /var/log/message logs:<br>Apr 17 10:03:53 hostname kernel: afs: file server xxx.xxx.xxx.x in cell <a href="http://tiara.sinica.edu.tw" target="_blank">tiara.sinica.edu.tw</a> is back up (multi-homed address; other same-host interfaces may still be down)<br>

Apr 17 10:03:53 hostname kernel: afs: file server xxx.xxx.xxx.x in cell <a href="http://tiara.sinica.edu.tw" target="_blank">tiara.sinica.edu.tw</a> is back up (multi-homed address; other same-host interfaces may still be down)<br>
Apr 17 11:34:47 hostname kernel: afs: Lost contact with file server xxx.xxx.xxx.x in cell <a href="http://tiara.sinica.edu.tw" target="_blank">tiara.sinica.edu.tw</a> (all multi-homed ip addresses down for the server)<br>

Apr 17 11:34:47 hostname kernel: afs: Lost contact with file server xxx.xxx.xxx.x in cell <a href="http://tiara.sinica.edu.tw" target="_blank">tiara.sinica.edu.tw</a> (all multi-homed ip addresses down for the server)<br>
Apr 17 11:35:11 hostname kernel: afs: file server xxx.xxx.xxx.x in cell <a href="http://tiara.sinica.edu.tw" target="_blank">tiara.sinica.edu.tw</a> is back up (multi-homed address; other same-host interfaces may still be down)<br>

Apr 17 11:35:11 hostname kernel: afs: file server xxx.xxx.xxx.x in cell <a href="http://tiara.sinica.edu.tw" target="_blank">tiara.sinica.edu.tw</a> is back up (multi-homed address; other same-host interfaces may still be down)<br>
Apr 17 11:45:43 hostname kernel: afs: Lost contact with file server xxx.xxx.xxx.x in cell <a href="http://tiara.sinica.edu.tw" target="_blank">tiara.sinica.edu.tw</a> (all multi-homed ip addresses down for the server)<br>

Apr 17 11:45:43 hostname kernel: afs: Lost contact with file server xxx.xxx.xxx.x in cell <a href="http://tiara.sinica.edu.tw" target="_blank">tiara.sinica.edu.tw</a> (all multi-homed ip addresses down for the server)<br>
Apr 17 11:45:59 hostname kernel: afs: file server xxx.xxx.xxx.x in cell <a href="http://tiara.sinica.edu.tw" target="_blank">tiara.sinica.edu.tw</a> is back up (multi-homed address; other same-host interfaces may still be down)<br>

Apr 17 11:45:59 hostname kernel: afs: file server xxx.xxx.xxx.x in cell <a href="http://tiara.sinica.edu.tw" target="_blank">tiara.sinica.edu.tw</a> is back up (multi-homed address; other same-host interfaces may still be down)<br>
Apr 17 11:56:40 hostname kernel: afs: Lost contact with file server xxx.xxx.xxx.x in cell <a href="http://tiara.sinica.edu.tw" target="_blank">tiara.sinica.edu.tw</a> (all multi-homed ip addresses down for the server)<br>

Apr 17 11:56:40 hostname kernel: afs: Lost contact with file server xxx.xxx.xxx.x in cell <a href="http://tiara.sinica.edu.tw" target="_blank">tiara.sinica.edu.tw</a> (all multi-homed ip addresses down for the server)<br>
Apr 17 11:57:02 hostname kernel: afs: file server xxx.xxx.xxx.x in cell <a href="http://tiara.sinica.edu.tw" target="_blank">tiara.sinica.edu.tw</a> is back up (multi-homed address; other same-host interfaces may still be down)<br>

Apr 17 11:57:02 hostname kernel: afs: file server xxx.xxx.xxx.x in cell <a href="http://tiara.sinica.edu.tw" target="_blank">tiara.sinica.edu.tw</a> is back up (multi-homed address; other same-host interfaces may still be down)<br>
Apr 17 12:07:36 hostname kernel: afs: Lost contact with file server xxx.xxx.xxx.x in cell <a href="http://tiara.sinica.edu.tw" target="_blank">tiara.sinica.edu.tw</a> (all multi-homed ip addresses down for the server)<br>

Apr 17 12:07:36 hostname kernel: afs: Lost contact with file server xxx.xxx.xxx.x in cell <a href="http://tiara.sinica.edu.tw" target="_blank">tiara.sinica.edu.tw</a> (all multi-homed ip addresses down for the server)<br>
Apr 17 12:07:51 hostname kernel: afs: file server xxx.xxx.xxx.x in cell <a href="http://tiara.sinica.edu.tw" target="_blank">tiara.sinica.edu.tw</a> is back up (multi-homed address; other same-host interfaces may still be down)<br>

Apr 17 12:07:51 hostname kernel: afs: file server xxx.xxx.xxx.x in cell <a href="http://tiara.sinica.edu.tw" target="_blank">tiara.sinica.edu.tw</a> is back up (multi-homed address; other same-host interfaces may still be down)<br>
Apr 17 12:18:32 hostname kernel: afs: Lost contact with file server xxx.xxx.xxx.x in cell <a href="http://tiara.sinica.edu.tw" target="_blank">tiara.sinica.edu.tw</a> (all multi-homed ip addresses down for the server)<br>

Apr 17 12:18:32 hostname kernel: afs: Lost contact with file server xxx.xxx.xxx.x in cell <a href="http://tiara.sinica.edu.tw" target="_blank">tiara.sinica.edu.tw</a> (all multi-homed ip addresses down for the server)<br>
Apr 17 12:18:54 hostname kernel: afs: file server xxx.xxx.xxx.x in cell <a href="http://tiara.sinica.edu.tw" target="_blank">tiara.sinica.edu.tw</a> is back up (multi-homed address; other same-host interfaces may still be down)<br clear="all">

<br>can anyone give me a hint to debug this issue? thank you.<br><br>best, sam<br><font color="#888888"><br></font></div>-- <br>Sam Tseng<br>Academia Sinica<br>Institute of Astronomy and Astrophysics<br>Tel.: +886-2-33652200 ext 742<br>
Fax: +886-2-23677849

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