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<TITLE>Re: OT: Server puts in zombie mode.</TITLE>
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<P><FONT SIZE=2>Can you connect to them local when they do this? One thing that comes to mind is a DNS problem.<BR>
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----- Original Message -----<BR>
From: mailscanner-bounces@lists.mailscanner.info <mailscanner-bounces@lists.mailscanner.info><BR>
To: MailScanner discussion <mailscanner@lists.mailscanner.info><BR>
Sent: Mon Apr 13 17:47:07 2009<BR>
Subject: OT: Server puts in zombie mode.<BR>
<BR>
Hi, i've a rare situation on some servers, they just get zombie. After<BR>
all i've researched i think it's a HD hang out or something in storage<BR>
because i couldnt find any trace in the logs. The failure seems to be<BR>
random and the server in zombie mode appears to be online answering<BR>
ping and if you telnet ssh port you get connected but after you<BR>
connect the connection is lost (as if the servers tries to read<BR>
something from HD).<BR>
<BR>
Also the servers that eventually crash have years of heavy load<BR>
processing emails (this backups my theory of HD failure). After<BR>
rebooting the server everything seems to be ok.<BR>
<BR>
The SO is slackware and some servers are slackware 10.2 or 12.1 so i<BR>
think is not a SO bug, also they have different versions of<BR>
MailScanner/SA/clamd (because they have years working and the upgrade<BR>
process is not masive. Usually the zombie servers has SATA disk (that<BR>
also backups my theory)<BR>
<BR>
Does anyone have any idea of how can i get a log or something to<BR>
demostrate this? or any other test to get better/or another conclusion<BR>
or cause?<BR>
<BR>
Any help would be really appreciated.<BR>
<BR>
Thanks eduardo.<BR>
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Tested on: 4/13/2009 5:50:45 PM<BR>
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