I wonder if it's a failed name resolution. Did you try both forward/reverse of
the client on the server and forward/reverse of the server on the client? Both
FQDN and shortname?
-----Original Message-----
From: EMC NetWorker discussion [mailto:NETWORKER AT LISTSERV.TEMPLE DOT EDU] On
Behalf Of Fazil Saiyed
Sent: Monday, March 31, 2008 10:55 AM
To: NETWORKER AT LISTSERV.TEMPLE DOT EDU
Subject: Re: [Networker] Linux Networker client floods network?
Hello,
We had trouble with backing up RHL client 7.3.3 with windows networker
server behind firewall, but i have no reported problem like you mentioned,
our problem resolved without intervention ( failed to backup) and there is
no clue what was blocking it to this date it has been file since that ?
IP Tapbles are off and SeLinux Firewall was off as well.
HTH
Yaron Zabary <yaron AT ARISTO.TAU.AC DOT IL>
Sent by: EMC NetWorker discussion <NETWORKER AT LISTSERV.TEMPLE DOT EDU>
03/31/2008 08:22 AM
Please respond to
EMC NetWorker discussion <NETWORKER AT LISTSERV.TEMPLE DOT EDU>; Please respond
to
Yaron Zabary <yaron AT ARISTO.TAU.AC DOT IL>
To
NETWORKER AT LISTSERV.TEMPLE DOT EDU
cc
Subject
Re: [Networker] Linux Networker client floods network?
Phil Myers wrote:
> Hi group.
>
> Have any of you ever seen the following problem with a Networker client
on
> Red Hat?
>
> When the backup group starts, the Networker client begins broadcasting
on
> the entire network on all VLANs, flooding the network and causing a
> virtual standstill. My network engineers tell me that this particular
> client keeps trying to broadcast to the legato server as if it can't
find
> it. However, the data on this client is being backed up. No other
> applications on this particular client exhibit this behavior; network
> operations are only affected when this Networker client starts backing
> up. We have tried 7.2.2 and 7.3.3 versions of the Linux client; same
> result. Does this sound like a Networker client issue or do you think
it
> would be a hardware issue?
Ouch ! I thought this was solved ages ago. Which Linux version are
you using ? It happened to me a couple of times with the old Ferral
client (version 5.x) in the late 90's. My understanding of the bug is
that the RPC stack on Linux has a bug which causes it to enter a tight
retry loop if it looses connection to the RPC server. I think I also saw
this mentioned with another RPC based service. At the time it managed to
bring down our Cisco 7000 router (with a very old Motorola
68k-processor). I suggest that you will make sure that the client has a
stable network connection to the server.
>
> Thanks for the help!
>
> Phil Myers
> pmyers2 AT conemaugh DOT org
> Network Administrator
> Memorial Medical Center
> Conemaugh Health System
> Johnstown, PA USA
>
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--
-- Yaron.
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