RE: Subscribe_for_node_down_event
- From: "William Wagman" <wjwagman@xxxxxxxxxxx>
- To: "Ghassan Salem" <salem.ghassan@xxxxxxxxx>, <fairlie_r@xxxxxxxxx>
- Date: Mon, 21 May 2007 08:54:44 -0700
Thanks for the suggestions. The answers highlight something I am
beginning to think I don't understand fully and perhaps you can help.
The question is. which home should the listener be running from. This is
a recent installation and for the first time I have followed Oracle's
suggestion and created a separate home for ASM. In previous
installations ASM and RDBMS shared the same home but now I have three,
CRS, ASM and RDBMS home. Things are configured now such that when the
nodes are rebooted the listener is started out of the ASM home. My
question is, should the listener start out of a particular home or does
it matter?
Also, the environment variable ORACLE_CONFIG_HOME is one I am not
familiar with, what does that do?
Thanks.
Bill Wagman
Univ. of California at Davis
IET Campus Data Center
wjwagman@xxxxxxxxxxx
(530) 754-6208
________________________________
From: Ghassan Salem [mailto:salem.ghassan@xxxxxxxxx]
Sent: Sunday, May 20, 2007 1:38 AM
To: fairlie_r@xxxxxxxxx
Cc: William Wagman; oracle-l
Subject: Re: Subscribe_for_node_down_event
Try renaming the ons.config file that's in the oracle_home (not the
crs_home), and restart the listener, or before starting the listener set
the ORACLE_CONFIG_HOME to the crs home.
rgds
On 5/19/07, fairlie rego <fairlie_r@xxxxxxxxx> wrote:
William,
Are you sure that your environments on both nodes point
to the CRS_HOME and not the ORACLE_HOME. I know
of issues where onsctl ping would work
from the CRS_HOME but not from the ORACLE_HOME
Also a trace of srvctl with SRVM_TRACE=DEBUG might
help you to find out what exactly is causing the hang on node 1
Thanks
Fairlie
William Wagman <wjwagman@xxxxxxxxxxx> wrote:
Fairlie,
Thanks for the response. Here is another piece to the
puzzle which to me just adds to the confusion. On node 1...
$ srvctl status nodeapps -n brownshoe
hangs
$ onsctl ping
Number of onsconfiguration retrieved, numcfg = 2
onscfg[0]
{node = brownshoe.ucdavis.edu, port = 6200}
Adding remote host brownshoe.ucdavis.edu:6200
onscfg[1]
{node = tenspeed.ucdavis.edu, port = 6200}
Adding remote host tenspeed.ucdavis.edu:6200
ons is not running ...
$
on node 2 I see...
$ srvctl status nodeapps -n tenspeed
VIP is running on node: tenspeed
GSD is running on node: tenspeed
Listener is not running on node: tenspeed
ONS daemon is running on node: tenspeed
$ onsctl ping
Number of onsconfiguration retrieved, numcfg = 2
onscfg[0]
{node = brownshoe.ucdavis.edu, port = 6200}
Adding remote host brownshoe.ucdavis.edu:6200
onscfg[1]
{node = tenspeed.ucdavis.edu, port = 6200}
Adding remote host tenspeed.ucdavis.edu:6200
ons is not running ...
$
Why does node 1 hang and why does srvctl show ons
running but onsctl ping says no. I don't understand the discrepancy.
Thanks.
Bill Wagman
Univ. of California at Davis
IET Campus Data Center
wjwagman@xxxxxxxxxxx
(530) 754-6208
________________________________
From: fairlie rego [mailto: fairlie_r@xxxxxxxxx
<mailto:fairlie_r@xxxxxxxxx> ]
Sent: Friday, May 18, 2007 4:14 PM
To: William Wagman
Cc: oracle-l
Subject: Re: Subscribe_for_node_down_event
William,
In brief this is all a part of the FAN framework where a
listener
registers with ONS.
You shouldn't have this problem if you set
SUBSCRIBE_FOR_NODE_DOWN_EVENT_<listener> to OFF
which should disable ONS subscription
If you still have an issue can you paste/send the output
of
onsctl debug
Thanks
Fairlie
William Wagman < wjwagman@xxxxxxxxxxx
<mailto:wjwagman@xxxxxxxxxxx> > wrote:
Greetings,
On a two node RAC cluster, Oracle 10.2.0.3.0
Enterprise Edition on RHEL4
64-bit using CRS.
In my listener.log I see numerous occurrences of
the message...
WARNING: Subscription for node down event still
pending
In searching for the web I find it commonly
suggested that the
listener.ora file by updated to include the
parameter
SUBSCRIBE_FOR_NODE_DOWN_EVENT_LSNR=
This is where I get lost. I am unable to find
any documentation as to
what constitutes a node down event and what the
ramifications are. What
is a node down event?
I have searched the Oracle docs for this
parameter, nothing is found.
Searching for listener.ora refers me to the net
services guide but I am
unable to find specific syntax for this
parameter, it doesn't even
appear in the index. Searching also refers me to
the configuring the
listener.ora in the various clusterware guides
but again, no syntax for
the parameter is given nor is it listed in the
index. I'm stumped.
What we are seeing is that our application is
using web logic and it
appears that after a while connections and
querying start to slow down
and restarting the listener temporarily appears
to resolve the issue.
Some of the notes about the warning message
indicates that the listener
encountering some memory issues but I really
can't find any explanations
of this anywhere.
If anyone can shed any light on this or point me
to some documentation
on what this means or how to troubleshoot this
problem I would be very
grateful.
Thanks.
Bill Wagman
Univ. of California at Davis
IET Campus Data Center
wjwagman@xxxxxxxxxxx
(530) 754-6208
--
//www.freelists.org/webpage/oracle-l
Fairlie Rego
Senior Oracle Consultant
http://el-caro.blogspot.com/
M: +61 402 792 405
________________________________
Yahoo! oneSearch: Finally, mobile search that gives
answers
<http://us.rd.yahoo.com/evt=48252/*http://mobile.yahoo.com/mobileweb/one
search?refer=1ONXIC> , not web links.
Fairlie Rego
Senior Oracle Consultant
http://el-caro.blogspot.com/
M: +61 402 792 405
________________________________
Don't be flakey. Get Yahoo! Mail for Mobile
<http://us.rd.yahoo.com/evt=43909/*http://mobile.yahoo.com/mail> and
always stay connected
<http://us.rd.yahoo.com/evt=43909/*http://mobile.yahoo.com/mail> to
friends.
Other related posts:
