RE: Oracle Names Server 8.1.7 on HP 11

2003-02-24 Thread Zabair Ahmed 
Hello Stephen,
sorry for the delay in reply, the names respository is located on a different server as compared to the names server. I would be interested in the white paper, it be great if you could send it over.
Thanks
Zabair
 "Karniotis, Stephen" <[EMAIL PROTECTED]> wrote:









Zabair:
 
  Interesting problem.  Where is the names server repository located? 
 
   We have implemented the Dynamic Discovery Option of the Oracle Names Server.  Additionally, we implemented multiple names servers and used the internal replication facility to keep them in sync.  I will send you a white paper on how to configure this if you want.  I believe it has already been posted by Jared (am I correct Jared) on the orafaq.net web site.   Let me know.
 
Thank You
 
Stephen P. Karniotis
Product Architect
Compuware Corporation
Direct:   (248) 865-4350
Mobile:  (248) 408-2918
Email:   [EMAIL PROTECTED]
Web:    www.compuware.com
 
-Original Message-From: Zabair Ahmed [mailto:[EMAIL PROTECTED]Sent: Thursday, February 20, 2003 12:19 PMTo: Multiple recipients of list ORACLE-LSubject: Oracle Names Server 8.1.7 on HP 11
 
We've currently got Names Server running on 4 host boxes. If one Names server is down, the client is configured to automatically attempt to connect to the next one in the list. We had a problem recently were, if we issued a tnsping from any of the clients we got the following message.
TNS-03505 - Failed to resolve name
This implies that our client PC is unable to resolve the name and hence was not able to connect to the database. Usually this implies that something is wrong with all our Oracle Names servers. 
Inorder to resolve this problem, I had to kill the Names Server on each of the 4 boxes and restart it.
The Names servers had somehow lost connection to the Oracle Names repository database, although the servers appear to be attached to the database.
I reckon we can reduce the chances of this problem occuring again, by adding a second Oracle Names database repository in our database cluster. This means, that if the NAMES servers lose connection to one repository, they can fall back on the second database without any loss of service.
What have other people done with their Names Server and respository and do they see any draw backs with the above.
Sorry for the long email.
TIA
 



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RE: Oracle Names Server 8.1.7 on HP 11

2003-02-20 Thread Ron Thomas 

I'd also add that we had nothing but problems with names on HP prior to version 
8.1.7.4.  Versions
8.1.7.4 and 9.2.0.2 have worked flawlessly.

Ron Thomas
Hypercom, Inc
[EMAIL PROTECTED]
Each new user of a new system uncovers a new class of bugs. -- Kernighan


   
  
  john.kanagaraj@hd
  
  s.comTo:   [EMAIL PROTECTED]  
  
  Sent by: cc: 
  
  [EMAIL PROTECTED] Subject:  RE: Oracle Names Server 8.1.7 
on HP 11  
   
  
   
  
  02/20/2003 12:19 
  
  PM   
  
  Please respond to
  
  ORACLE-L 
  
   
  
   
  




Zabair,

In addition to the excellent replies you have recieved, be aware that the
Name Server will keep an open connection to the Repository, but will check
the local cache (in the names directory) to resolve any queries. (Performing
a DB query for every name resolution can be expensive!) I have had
situations where both our nameservers (no ddo, both on Solaris, 8.1.7) lost
connection to the repository (due to DB going down) and the NS continued to
work. if you restart them and they cannot find the repository, they will use
the caches. Of course, you should build monitoring scripts that check both
the repository as well as response from the NS for highly available servers.

John Kanagaraj
Oracle Applications DBA
DBSoft Inc
(W): 408-970-7002

I don't know what the future holds for me, but I do know who holds my
future!

** The opinions and statements above are entirely my own and not those of my
employer or clients **


-Original Message-
Sent: Thursday, February 20, 2003 10:39 AM
To: Multiple recipients of list ORACLE-L


You may also want to add these 2 parameters to your sqlnet.ora.  Speeds up
the switch to another nameserver.

NAMES.INITIAL_RETRY_TIMEOUT = 5  # Wait num seconds before going to next
nameserver, default=15
NAMES.REQUEST_RETRIES = 2  # Number of retries for nameserver, default=5

Gene

>>> [EMAIL PROTECTED] 02/20/03 12:19PM >>>


We've currently got Names Server running on 4 host boxes. If one Names
server is down, the client is configured to automatically attempt to connect
to the next one in the list. We had a problem recently were, if we issued a
tnsping from any of the clients we got the following message.

TNS-03505 - Failed to resolve name

This implies that our client PC is unable to resolve the name and hence was
not able to connect to the database. Usually this implies that something is
wrong with all our Oracle Names servers.

Inorder to resolve this problem, I had to kill the Names Server on each of
the 4 boxes and restart it.

The Names servers had somehow lost connection to the Oracle Names repository
database, although the servers appear to be attached to the database.

I reckon we can reduce the chances of this problem occuring again, by adding
a second Oracle Names database repository in our database cluster. This
means, that if the NAMES servers lose connection to one repository, they can
fall back on the second database without any loss of service.

What have other people done with their Names Server and respository and do
they see any draw backs with the above.

Sorry for the long email.

TIA





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e.html> With Yahoo! Mail you can get a bigger mailbox -- choose a size that
fits your needs


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Ple

Re: Oracle Names Server 8.1.7 on HP 11

2003-02-20 Thread Jared . Still 
Unless you have a fairly complex environment with multiple domains, 
it may be easier to not use the repository.  It isn't required.

Jared






Zabair Ahmed <[EMAIL PROTECTED]>
Sent by: [EMAIL PROTECTED]
 02/20/2003 09:19 AM
 Please respond to ORACLE-L

 
To: Multiple recipients of list ORACLE-L <[EMAIL PROTECTED]>
cc: 
Subject:Oracle Names Server 8.1.7 on HP 11


We've currently got Names Server running on 4 host boxes. If one Names 
server is down, the client is configured to automatically attempt to 
connect to the next one in the list. We had a problem recently were, if we 
issued a tnsping from any of the clients we got the following message.
TNS-03505 ? Failed to resolve name
This implies that our client PC is unable to resolve the name and hence 
was not able to connect to the database. Usually this implies that 
something is wrong with all our Oracle Names servers. 
Inorder to resolve this problem, I had to kill the Names Server on each of 
the 4 boxes and restart it.
The Names servers had somehow lost connection to the Oracle Names 
repository database, although the servers appear to be attached to the 
database.
I reckon we can reduce the chances of this problem occuring again, by 
adding a second Oracle Names database repository in our database cluster. 
This means, that if the NAMES servers lose connection to one repository, 
they can fall back on the second database without any loss of service.
What have other people done with their Names Server and respository and do 
they see any draw backs with the above.
Sorry for the long email.
TIA

With Yahoo! Mail you can get a bigger mailbox -- choose a size that fits 
your needs


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RE: Oracle Names Server 8.1.7 on HP 11

2003-02-20 Thread John Kanagaraj 
Zabair,
 
In addition to the excellent replies you have recieved, be aware that the
Name Server will keep an open connection to the Repository, but will check
the local cache (in the names directory) to resolve any queries. (Performing
a DB query for every name resolution can be expensive!) I have had
situations where both our nameservers (no ddo, both on Solaris, 8.1.7) lost
connection to the repository (due to DB going down) and the NS continued to
work. if you restart them and they cannot find the repository, they will use
the caches. Of course, you should build monitoring scripts that check both
the repository as well as response from the NS for highly available servers.
 
John Kanagaraj
Oracle Applications DBA
DBSoft Inc
(W): 408-970-7002

I don't know what the future holds for me, but I do know who holds my
future!

** The opinions and statements above are entirely my own and not those of my
employer or clients **


-Original Message-
Sent: Thursday, February 20, 2003 10:39 AM
To: Multiple recipients of list ORACLE-L


You may also want to add these 2 parameters to your sqlnet.ora.  Speeds up
the switch to another nameserver.
 
NAMES.INITIAL_RETRY_TIMEOUT = 5  # Wait num seconds before going to next
nameserver, default=15
NAMES.REQUEST_RETRIES = 2  # Number of retries for nameserver, default=5

Gene

>>> [EMAIL PROTECTED] 02/20/03 12:19PM >>>


We've currently got Names Server running on 4 host boxes. If one Names
server is down, the client is configured to automatically attempt to connect
to the next one in the list. We had a problem recently were, if we issued a
tnsping from any of the clients we got the following message.

TNS-03505 - Failed to resolve name

This implies that our client PC is unable to resolve the name and hence was
not able to connect to the database. Usually this implies that something is
wrong with all our Oracle Names servers. 

Inorder to resolve this problem, I had to kill the Names Server on each of
the 4 boxes and restart it.

The Names servers had somehow lost connection to the Oracle Names repository
database, although the servers appear to be attached to the database.

I reckon we can reduce the chances of this problem occuring again, by adding
a second Oracle Names database repository in our database cluster. This
means, that if the NAMES servers lose connection to one repository, they can
fall back on the second database without any loss of service.

What have other people done with their Names Server and respository and do
they see any draw backs with the above.

Sorry for the long email.

TIA





  _  

 
 With Yahoo! Mail you can get a bigger mailbox -- choose a size that
fits your needs


-- 
Please see the official ORACLE-L FAQ: http://www.orafaq.net
-- 
Author: John Kanagaraj
  INET: [EMAIL PROTECTED]

Fat City Network Services-- 858-538-5051 http://www.fatcity.com
San Diego, California-- Mailing list and web hosting services
-
To REMOVE yourself from this mailing list, send an E-Mail message
to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in
the message BODY, include a line containing: UNSUB ORACLE-L
(or the name of mailing list you want to be removed from).  You may
also send the HELP command for other information (like subscribing).

RE: Oracle Names Server 8.1.7 on HP 11

2003-02-20 Thread Deshpande, Kirti 



We run 
4 Names servers on 4 different host machines, each having its own repository 
database on that host. 
These 
are defined in various preference order in SQLNET.ora file on various clients. 
Repository databases are monitored by other mechanisms. 
 
- 
Kirti 

  -Original Message-From: Zabair Ahmed 
  [mailto:[EMAIL PROTECTED]]Sent: Thursday, February 20, 2003 11:19 
  AMTo: Multiple recipients of list ORACLE-LSubject: 
  Oracle Names Server 8.1.7 on HP 11
  We've currently got Names Server running on 4 host boxes. If one Names 
  server is down, the client is configured to automatically attempt to connect 
  to the next one in the list. We had a problem recently were, if we issued a 
  tnsping from any of the clients we got the following message.
  TNS-03505 - Failed to resolve name
  This implies that our client PC is unable to resolve the name and hence was 
  not able to connect to the database. Usually this implies that something is 
  wrong with all our Oracle Names servers. 
  Inorder to resolve this problem, I had to kill the Names Server on each of 
  the 4 boxes and restart it.
  The Names servers had somehow lost connection to the Oracle Names 
  repository database, although the servers appear to be attached to the 
  database.
  I reckon we can reduce the chances of this problem occuring again, by 
  adding a second Oracle Names database repository in our database cluster. This 
  means, that if the NAMES servers lose connection to one repository, they can 
  fall back on the second database without any loss of service.
  What have other people done with their Names Server and respository and do 
  they see any draw backs with the above.
  Sorry for the long email.
  TIA
  
  
  
  With Yahoo! Mail you can get a bigger mailbox -- choose a 
  size that fits your needs

Re: Oracle Names Server 8.1.7 on HP 11

2003-02-20 Thread Gene Sais 



You may also want to add these 2 parameters to your sqlnet.ora.  
Speeds up the switch to another nameserver.
 
NAMES.INITIAL_RETRY_TIMEOUT = 5  # Wait num 
seconds before going to next nameserver, 
default=15NAMES.REQUEST_RETRIES = 2  # Number of 
retries for nameserver, default=5
Gene>>> [EMAIL PROTECTED] 02/20/03 12:19PM 
>>>
We've currently got Names Server running on 4 host boxes. If one Names server 
is down, the client is configured to automatically attempt to connect to the 
next one in the list. We had a problem recently were, if we issued a tnsping 
from any of the clients we got the following message.
TNS-03505 – Failed to resolve name
This implies that our client PC is unable to resolve the name and hence was 
not able to connect to the database. Usually this implies that something is 
wrong with all our Oracle Names servers. 
Inorder to resolve this problem, I had to kill the Names Server on each of 
the 4 boxes and restart it.
The Names servers had somehow lost connection to the Oracle Names repository 
database, although the servers appear to be attached to the database.
I reckon we can reduce the chances of this problem occuring again, by 
adding a second Oracle Names database repository in our database cluster. This 
means, that if the NAMES servers lose connection to one repository, they can 
fall back on the second database without any loss of service.
What have other people done with their Names Server and respository and do 
they see any draw backs with the above.
Sorry for the long email.
TIA



With Yahoo! Mail you can get a bigger mailbox -- choose a size 
that fits your needs

RE: Oracle Names Server 8.1.7 on HP 11

2003-02-20 Thread Karniotis, Stephen 








Zabair:

 

 
Interesting problem.  Where
is the names server repository located? 

 

  
We have implemented the Dynamic Discovery Option of the Oracle Names
Server.  Additionally, we
implemented multiple names servers and used the internal replication facility
to keep them in sync.  I will send
you a white paper on how to configure this if you want.  I believe it has already been posted by
Jared (am I correct Jared) on the orafaq.net web site.   Let me know.

 

Thank You

 

Stephen P. Karniotis

Product
Architect

Compuware
Corporation

Direct:   (248) 865-4350

Mobile:  (248) 408-2918

Email:   [EMAIL PROTECTED]

Web:    www.compuware.com

 

-Original
Message-
From: Zabair Ahmed [mailto:[EMAIL PROTECTED]]
Sent: Thursday, February 20, 2003
12:19 PM
To: Multiple recipients of list
ORACLE-L
Subject: Oracle Names Server 8.1.7
on HP 11

 

We've currently got Names Server running
on 4 host boxes. If one Names server is down, the client is configured to
automatically attempt to connect to the next one in the list. We had a problem
recently were, if we issued a tnsping from any of the clients we got the
following message.

TNS-03505 -
Failed to resolve name

This implies
that our client PC is unable to resolve the name and hence was not able to
connect to the database. Usually this implies that something is wrong with all
our Oracle Names servers. 

Inorder to
resolve this problem, I had to kill the Names Server on each of the 4 boxes and
restart it.

The Names
servers had somehow lost connection to the Oracle Names repository database,
although the servers appear to be attached to the database.

I reckon we
can reduce the chances of this problem occuring again, by adding a second
Oracle Names database repository in our database cluster. This means, that if
the NAMES servers lose connection to one repository, they can fall back on the
second database without any loss of service.

What have other
people done with their Names Server and respository and do they see any draw
backs with the above.

Sorry for the
long email.

TIA

 









With Yahoo! Mail you can get a bigger mailbox -- choose a size that fits
your needs










The contents of this e-mail are intended for the named addressee only. It contains information that may be confidential. Unless you are the named addressee or an authorized designee, you may not copy or use it, or disclose it to anyone else. If you received it in error please notify us immediately and then destroy it.