AF:
NF:0
PS:10
SRH:1
SFN:
DSR:
MID:<20080612105132.467e9196@ripper.onstor.net>
CFG:
PT:0
S:andy.sharp@onstor.com
RQ:
SSV:onstor-exch02.onstor.net
NSV:
SSH:
R:<carlos.mora@onstor.com>,<dl-cstech@onstor.com>
MAID:1
X-Sylpheed-Privacy-System:
X-Sylpheed-Sign:0
SCF:#mh/Mailbox/sent
RMID:#imap/andys@onstor.net@onstor-exch02.onstor.net/INBOX	0	BB375AF679D4A34E9CA8DFA650E2B04E0889C2E5@onstor-exch02.onstor.net
X-Sylpheed-End-Special-Headers: 1
Date: Thu, 12 Jun 2008 10:52:18 -0700
From: Andrew Sharp <andy.sharp@onstor.com>
To: "Carlos Mora" <carlos.mora@onstor.com>
Cc: "dl-cstech" <dl-cstech@onstor.com>
Subject: Re: what is the criteria for failing over to the secondary DNS
 server?
Message-ID: <20080612105218.3739b50c@ripper.onstor.net>
In-Reply-To: <BB375AF679D4A34E9CA8DFA650E2B04E0889C2E5@onstor-exch02.onstor.net>
References: <BB375AF679D4A34E9CA8DFA650E2B04E0A6E8438@onstor-exch02.onstor.net>
	<BB375AF679D4A34E9CA8DFA650E2B04E0889C2E2@onstor-exch02.onstor.net>
	<BB375AF679D4A34E9CA8DFA650E2B04E0889C2E5@onstor-exch02.onstor.net>
Organization: Onstor
X-Mailer: Sylpheed-Claws 2.6.0 (GTK+ 2.8.20; x86_64-pc-linux-gnu)
Mime-Version: 1.0
Content-Type: text/plain; charset=US-ASCII
Content-Transfer-Encoding: 7bit

I believe it's standard resolver library behavior, which is to try
the servers in order of configuration until a server which is
authoratative replies, or, failing that, the first non-authoratative
reply.  Roughly speaking.  So there really isn't a "failover" per se.

On Thu, 12 Jun 2008 09:14:19 -0700 "Carlos Mora"
<carlos.mora@onstor.com> wrote:

> 
> 
> --
> Carlos Mora
> carlos.mora@onstor.com
> ONStor, Inc.
> Sr. Technical Support Engineer
> (408)802-5602
> 
> 
> 
> -----Original Message-----
> From: Carlos Mora
> Sent: Thu 6/12/2008 10:28 AM
> To: dl-cstech
> Cc: Carlos Mora
> Subject: FW: Escalation Request for L3 - [Jackson Laboratory]
> 00008402,Urgent -- Severity 2: "System never fails over to secondary
> DNS server" What is the criteria for a filer or vs to fail over to a
> secondary DNS server?
> 
> Thanks
> Carlos
> 
> --
> Carlos Mora
> carlos.mora@onstor.com
> ONStor, Inc.
> Sr. Technical Support Engineer
> (408)802-5602
> 
> 
> 
> -----Original Message-----
> From: Caeli Collins
> Sent: Thu 6/12/2008 10:17 AM
> To: Neil Cook; Carlos Mora
> Subject: FW: Escalation Request for L3 - [Jackson Laboratory]
> 00008402,Urgent -- Severity 2: "System never fails over to secondary
> DNS server" Can one of you take a look, recommend next steps at
> least? 
> 
> 
> Caeli
> 
> -----Original Message-----
> From: Frontline Support 
> Sent: Thursday, June 12, 2008 05:21
> To: dl-esc-l3
> Subject: Escalation Request for L3 - [Jackson Laboratory]
> 00008402,Urgent -- Severity 2: "System never fails over to secondary
> DNS server"
> 
> This email was automatically generated, please do not respond.
> 
> This is an escalation request for L3 to take ownership of case
> 00008402.  It was last modified 6/12/2008. Account: Jackson Laboratory
> Case: 00008402
> Case Subject: System never fails over to secondary DNS server
> L1/L2 Support Engineer: Alan Cooke
> Case Contact: Jim Merritt
> Case Contact Email: jim.merritt@jax.org 
> 
> Case link: https://ssl.salesforce.com/50000000001aFMz
> 
> Last Public Comment: Jason Tyler commented:
> 
> Adding a couple additional notes.
> 
> From the log on bobcat1:
> 
> Jun 11 19:28:19 bobcat1 : 0:0:ea:ERROR: nfxnis_dnsSelectHandler[938]:
> Failed to connect to DNS[192.43.249.1] for VS[8]. err=0, rc=61 Jun 11
> 19:28:19 bobcat1 last message repeated 39 times Jun 11 19:28:25
> bobcat1 : 0:0:ea:ERROR: nfxnis_rcvPortmapResponse: Portmap Resp
> [xid=0x495d1607] from ip=10.40.40.5 port=111. NO Request for VS=7.
> Jun 11 19:28:25 bobcat1 : 0:0:ea:ERROR: nfxnis_rcvPortmapResponse:
> Portmap Resp [xid=0xe8946408] from ip=10.40.40.5 port=111. NO Request
> for VS=8. Jun 11 19:28:25 bobcat1 : 0:0:ea:ERROR:
> nfxnis_rcvPortmapResponse: Portmap Resp [xid=0x55590404] from
> ip=10.40.40.5 port=111. NO Request for VS=4. Jun 11 19:28:25
> bobcat1 : 0:0:ea:ERROR: nfxnis_dnsSelectHandler[938]: Failed to
> connect to DNS[192.43.249.1] for VS[8]. err=0, rc=61 Jun 11 19:28:25
> bobcat1 last message repeated 39 times Jun 11 19:28:40 bobcat1 :
> 0:0:pm:ERROR: pm_sig_handler: /usr/local/agile/bin/ea (pid 16884)
> terminated with signal Abort trap Jun 11 19:28:40 bobcat1 :
> 0:0:pm:INFO: /usr/local/agile/bin/ea: finished initialization. 
> 
> In addition the follow error is from any host connecting to an NFS
> share:
> 
> # mount jaxqtfs:/quicktime /mnt
> nfs mount: jaxqtfs:/quicktime: server not responding : RPC: Timed out
> nfs mount: retrying: /mnt
> 
> Finally, I removed an NIS server record that was incorrect, but the
> bobcat is still logging errors against it:
> 
> Jun 11 19:25:20 bobcat1 : 0:0:ea:ERROR: nfxnis_rcvPortmapResponse:
> Portmap Resp [xid=0xe8945208] from ip=10.40.40.5 port=111. NO Request
> for VS=8. Jun 11 19:25:20 bobcat1 : 0:0:ea:ERROR:
> nfxnis_rcvPortmapResponse: Portmap Resp [xid=0x5558f504] from
> ip=10.40.40.5 port=111. NO Request for VS=4. Jun 11 19:25:35
> bobcat1 : 0:0:ea:ERROR: nfxnis_rcvPortmapResponse: Portmap Resp
> [xid=0x495d0807] from ip=10.40.40.5 port=111. NO Request for VS=7.
> Jun 11 19:25:35 bobcat1 : 0:0:ea:ERROR: nfxnis_rcvPortmapResponse:
> Portmap Resp [xid=0xe8945308] from ip=10.40.40.5 port=111. NO Request
> for VS=8. Jun 11 19:25:35 bobcat1 : 0:0:ea:ERROR:
> nfxnis_rcvPortmapResponse: Portmap Resp [xid=0x5558f604] from
> ip=10.40.40.5 port=111. NO Request for VS=4. Jun 11 19:25:49
> bobcat1 : 0:0:ea:ERROR: nfxnis_dnsSelectHandler[938]: Failed to
> connect to DNS[192.43.249.1] for VS[7]. err=0, rc=60 Jun 11 19:25:49
> bobcat1 : 0:0:ea:INFO: nfxnis_resRcv[3052]: DNS[192.43.249.89] closed
> connection, VS=4. err=0 Jun 11 19:25:54 bobcat1 : 0:0:ea:ERROR:
> nfxnis_rcvPortmapResponse: Portmap Resp [xid=0x495d0907] from
> ip=10.40.40.5 port=111. NO Request for VS=7. Jun 11 19:25:54
> bobcat1 : 0:0:ea:ERROR: nfxnis_rcvPortmapResponse: Portmap Resp
> [xid=0xe8945408] from ip=10.40.40.5 port=111. NO Request for VS=8.
> Jun 11 19:25:54 bobcat1 : 0:0:ea:ERROR: nfxnis_rcvPortmapResponse:
> Portmap Resp [xid=0x5558f704] from ip=10.40.40.5 port=111. NO Request
> for VS=4. 
> 
> Thank you.
> 
> 
> 
> 
