Hi Helge,
looks like the 477 is indeed triggered by some entries in the temporary
blacklist of the DNS resolver. Most probably this entries are generated
because of a 408 timeout with no reply. can you check on this? Probably
is also important for you to know that you have such situation on your
LBs :).
For example, on LB1, the address of the SP1 is timeout-ed.
regards,
bogdan
Helge Waastad wrote:
Hi,
yes I got an 477 and fifo list_blacklists on dispatcher layer shows:
(I have LB and SP running on two hosts, LB on 5060, SP on 5080)
Having #disable_dns_blacklists=yes in my config.
LB #1 <IP #1>:
List:: dns owner=17 flags=6
Rule:: flags=0
IP:: <IP #1>
Mask:: 255.255.255.255
Proto:: 1
Port:: 5080
Expire:: 7089
Rule:: flags=0
IP:: <IP #1>
Mask:: 255.255.255.255
Proto:: 1
Port:: 5060
Expire:: 7092
LB #2 <IP #2>:
List:: dns owner=17 flags=6
Rule:: flags=0
IP:: <IP #1>
Mask:: 255.255.255.255
Proto:: 1
Port:: 5060
Expire:: 7064
br hw
On ons, 2007-02-07 at 12:06 +0200, Bogdan-Andrei
Iancu wrote:
ok - thanks ; that wil be really helpful to see if there is a bug or it
is normal behaviour of blacklists ;)
regards,
bogdan
Helge Waastad wrote:
Hi,
I will turn back to the original config and give you feedback on this
the moment I have managed to force the 477 response
br hw
On ons, 2007-02-07 at 11:02 +0200, Bogdan-Andrei Iancu wrote:
Hi Helge,
I'm trying to go to the bottom of this problem .... was it the case of
a local generated 408 timeout with no reply received? Because this case
is considered a failure that triggers DNS-based failover (RFC3262) and
if disable_dns_blacklist=no, the destination IP address will be
blacklisted for 4 minutes.
can you check if this was the case?
you can inspect the content of the blacklist via MI command
"list_blacklists"
regards,
bogdan
Helge Waastad wrote:
Hi,
that helped.
Thanks a lot.
br he
On tir, 2007-02-06 at 20:13 +0200, Bogdan-Andrei Iancu wrote:
Hi Helge,
somebody else reported something similar :
http://www.openser.org/pipermail/devel/2007-February/005705.html
try to see if:
disable_dns_blacklist=yes
has any effect.
regards,
bogdan
Helge Waastad wrote:
Hi,
I just want to see if anyone else has seen the same as I have.
Every now and then I get a 477 Unfortunately error on sending to next
hop occurred (477/TM)
on my stateful dispatcher.
I'm basically using the same config as I have been using for my 1.1.1
setup.
I will try to debug further
br hw
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