Load balancing Reports Services 10g with WebCache?

Hi Guys
Does anybody have any good ideas on how to load balance Oracle Reports Services?
Can I do it with WebCache as with Forms Services?
/Jacob :)

My java application resides in a different server (weblogic) from the Oracle Application server (which has the report server). I do a browser redirect from my java application to a URL of OAS . I have hard coded Oracle Application server and report server name in one of my config files in my java weblogic server
In the above URL, servername:7770 is the Oracle Application Server. I would not have a problem with this since this will be the name of the cluster.
But the problem is server=<report server> . The report server which will pickup my request will be identified only after the browser has redirected to the URL. SO I cannot hard code it in my ajava application.
Can I just remove server=<report server name> when generating URL from my java application when I need to run report server in a clustered load balancing environment?
Sorry if my earlier post was confusing

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Report server 6i and Report services 10g

what is the extra features in Report Services 10g which are not available in Report server 6i.
why would we use AS report services 10g rather then report server 6i,and our only requirment is to run oracle report on web which can fulfill with the help of reports server 6i.

There is a long list of new features and I cant put all of them here
You can see docs below
For running on Web 9i, 10g moves to Servlet based architecture (though old cgi mode is available for backward compatibility). Reports behaves as a component in IAS and can be monitored and managed through Oracle Enterprise Manager (OEM).
More details here
http://www.oracle.com/technology/products/reports/index.html
and here is the 10g datasheet
http://www.oracle.com/technology/products/reports/10g/DATASHEET.HTM
[    All Docs for all versions    ]
http://otn.oracle.com/documentation/reports.html
[     Publishing reports to web - 10G ]
http://download.oracle.com/docs/html/B10314_01/toc.htm (html)
http://download.oracle.com/docs/pdf/B10314_01.pdf (pdf)
[   Building reports - 10G ]
http://download.oracle.com/docs/pdf/B10602_01.pdf (pdf)
http://download.oracle.com/docs/html/B10602_01/toc.htm (html)
[   Forms Reports Integration whitepaper 9i ]
http://otn.oracle.com/products/forms/pdf/frm9isrw9i.pdf
---------------------------------------------------------------------------------

Question about Load Balance SFTP service by using CSS1150X

Does anyone come across of load balancing SFTP service by using CSS1150X? Typically by configuring CSS1150X to load balance FTP service, the configuration will as follow:
content ftp_rule
vip address 192.168.3.6
protocol tcp
port 21
application ftp-control
add service serv1
add service serv2
add service serv3
active
group ftp_group
vip address 192.168.3.6
add service serv1
add service serv2
add service serv3
active
However, for my personal understanding and knowledge, I will configure my CSS1150X as follow to load balance SFTP service:
content sftp_rule
vip address 192.168.3.6
protocol tcp
port 22 //Change 21 to 22
application ftp-control
add service serv1
add service serv2
add service serv3
active
group sftp_group
vip address 192.168.3.6
add service serv1
add service serv2
add service serv3
active
My question is, "application ftp-control" in content "ftp_rule" is still applicable to SFTP or not?

I believe application ftp-control would not be used for sftp.
This might cause the session to get dropped when there is no data channel created and cause issues with long connections.
Hope it helps!!

Sticky load balancing across 2 ports with cookies

Hi,
I have a server configuration where I have 1 top level Apache server that deals with SSL termination (and handles static content) and proxy passes dynamic content onto 2 Tomcat servers on 2 ports, one for http requests (9001) and one for the requests that were secure, but have now been un-encrypted by Apache (9002). My 2 Tomcat servers are load balanced using a CSS and I need this load balancing to stick to the tomcat servers regardless of port so that the user is stuck to the same Tomcat server for their entire session.
I would like to use arrowpoint cookies to perform this stickyness, but the documentation suggests that arrowpoint cookie load balancing (in fact any cookie based load balancing) requires the port to be specified in the content rule. Is this correct? Is my only option to use the source IP for stickyness? I don't understand why the port should be required if the stickyness is via a cookie. Can I not simply configure my 2 tomcat servers as services with no port and add a single content rule that load balances these services using arrowpoint-cookie advanced balancing?
service tomcat1
ip address x.x.x.x
active
service tomcat2
ip address x.x.x.x
active
owner me
   content sticky
     vip address x.x.x.x
     protocol tcp
     url "/*"
     add service tomcat-1
     add service tomcat-2
     advanced-balance arrowpoint-cookie
     active

Angela-
The issue with port is that cookies are very specifically HTTP only and the CSS has no way of knowing what protocol will hit a VIP prior to trying to address it as HTTP. Your issue is actually a bit clearer than it is initially led to be - you can still use 2 different rules by using the configuration below.
However, you might be headed for a headache if you don't implicitly control the client's actions. By default, browsers don't generally send cookies cross-protocol and definitely not cross-domain. Use something like httpwatch or iewatch to check out the headers your client sends to your site. Make sure when the 200ok arrives with the set-cookie that the client sends that cookie in all preceeding packets that are HTTP and HTTPS both.
service tomcat1
string "tomcat1"
ip address x.x.x.x
active
service tomcat2
string "tomcat2"
ip address x.x.x.x
active
owner me
   content sticky9001
     vip address x.x.x.x
     protocol tcp
     url "/*"
     port 9001
     add service tomcat-1
     add service tomcat-2
     advanced-balance arrowpoint-cookie
     active
   content sticky9002
     vip address x.x.x.x
     protocol tcp
     url "/*"
     port 9002
     add service tomcat-1
     add service tomcat-2
     advanced-balance arrowpoint-cookie
     active
With this configuration, the CSS will use the "string" as the cookie value. So if the client were to recieve set-cookie: ArrowpointCookie=tomcat1, it should use it for either rule, and end up on tomcat1 accessing either VIP.
Regards,
Chris

(RHEL3) iAS form service 10g with jpi 1.4x error

hello~
my form service os is RHEL3 , and i install
oracle form and report service 10g on it !
when i use jinit 1.3.1.13 and ienative VM to test form
, everything is fine , but use jpi 1.4x to test
form will raise the java exception like below :
FRM-92050
<java.io.IOException: Negative content-length from HTTP.>
at oracle.forms.net.HTTPNStream.doGet(Unknow Source)...
========================================================
but when i install the IDS 10G in another RHEL3 server
and start the OC4J instance , i test form with
config= jinit or ienative or jpi , everything is fine,
is it a BUG in IAS904 form for linux platform???
I'm sure all config had setup ok..

We had the same error (FRM-92050) (we have a Unix server) and we changed the FORMS60_TIMEOUT=10 (from 5) and upped the users and confirmed processes from the default of 100 to 200 (in the default.env and init<dbname>.ora). Now we are able to connect remotely.
(We had not priviously done all the post install steps. These are included in those steps.)
good luck,
LW

Does 8i client support load balance connection on 10g RAC?

We will migrate our server to Oracle 10g with RAC and ASM.
On the other hand, our client machines are using Oracle 8i.
Does 8i support load balance connection on 10g RAC server?
Thanks.
Jimmy Tang

Your Client Machines are running the 8i client?

Date format Problem in forms&reports Services 10g

Hi Dears,
I Faced a problem during running reports ( i am using forms& Reports Services 10g), when i pass the parameters via parameter form to the report (built in forms10g Rel 2.0) its appearing in arabic like (25-يناير-2010) as my Date Formate is (DD-YYYY-MON) and NLS_LANG parameter is defined as Arabic_Saudi arabia.AR8MSWIN1256 so as a result report is not running due to unknown Date formate, how can i change the Same Date format (DD-YYYY-MON) to appear in english like (25-2010-JAN)
Thanks

You could specify the parameter as type VARCHAR2, explicitly cast it (maybe to DD.MM.YYYY) when you pass it from forms and cast it back in your query, like TO_DATE(:P_PARAM, 'DD.MM.YYYY')

Font/Screen settings under Reports Services 10g

Hello,
How can I determine what my Font and Screen settings are set in the same way as my Oracle 9i iDS environement running under Windows XP Pro.
I am running Forms/reports Services 10g on a Red Hat Linux Enterprise 3 (ES) server.
PT

The listener error is probably because either the listener connecting the db that contains the application data is down or the listner to that db is down.
The sequence you list is for Application Server middle tier where forms and reports services run. Not starting Em agent has only one consequence. You cannot use EM to manage the instance.
Pavna Jain

CSS11501 load-balancing IPv6 services

Hi,
I'm new to content networking and load-balancing.
I am setting up a new nameserver network site and have the following equipment:
- Cisco 2811
- Cicso CSS11501
- Cisco Catalyst 2960
This site will have 2 nameservers which I want to load-balance behind the CSS11501. The network will be setup like this:
Internet
|
Cisco 2811
|
CSS11501
|
Cisco 2960
|
Nameservers 1 & 2
The CSS11501 will be in routed mode and will have a publicly addressed VIP (eg, 203.x.x.x) for the DNS service and the name servers will be privately addressed (eg, 10.x.x.10 & 10.x.x.11). I'm hoping this will work fine and serve the requested IPv4 DNS requests.
I would like the nameservers to also operate on IPv6 and serve out IPv6 DNS requests but am not sure the CSS11501 can perform IPv6 service load-balancing.
My question is, does the CSS11501 support IPv6, load-balancing IPv6 service requests?
Thanks in advance.
Richard.

Gilles,
Thanks for the reply.
On another site I was looking at rolling out a Catalyst 6500 CSM module to do the exact same thing as the site I have the CSS11501's at, but it too does not support IPv6 from all I could find. Does the ACE provide all the functionality of the CSM plus IPv6?
Thanks.
Richard.

OAS Forms and Reports Services 10g (9.0.4.0.0) Standalone Inst for Linux !

Hi,
Is available Oracle Application Server Forms and Reports Services 10g (9.0.4.0.0) 'Standalone' Install Option for Linux platform ?
If yes, where to download it.
Regards
Nelson

http://www.oracle.com/technology/software/products/forms/index.html

FRM-92101: Load Balancing Forms 10g with Webcache

Hi,
IÂ´m having some problems with Oracle Forms and Webcache 10g and I was wondering if you
could help.
Machines: (Pentium IV 2.6 GHz; 2GB RAM; 80GB HD)
A. Red Hat Linux AS 2.1
Oracle AS 10g - Infrastructure Installation
B. Windows 2000 Server - Service Pack 4
Oracle AS 10g - BI and Forms Installation (Using Infrastructure on machine A)
C. Windows 2000 Server - Service Pack 4
Oracle AS 10g - BI and Forms Installation (Using Infrastructure on machine A)
I didnÂ´t apply any Patchsets of Oracle AS 10g. My current version is 9.0.4.0 .
Goal:
Use Oracle Webcache 10g on machine B for Load Balancing an Oracle Forms Application
on machines B and C.
Facts:
The Oracle AS 10g installation on the 3 machines was made without problems.
The Forms Applications are running without problems on both Forms servers in machine B and C.
Symptoms:
IÂ´m getting the following error when I try to access the forms application through Webcache:
FRM-92101: There was a failure in the forms server during startup.
This could happen due to invalid configuration.
Please look in the web-server log file for details.
But, this error happens ONLY when BOTH OC4J_BI_Forms instances (machines B and C) are
running.
When just one of the OC4J_BI_Forms is running everything works fine.
Webcache Configuration:
IÂ´ve followed Metalink note 207668.1: Configuring Web Cache as a Load Balancer for Application Servers
step by step to make the configuration of the following components:
1. Configuration of the origin servers
2. Configuration of Site definitions
3. Configuration of Site to server mapping
After that, IÂ´ve follwed the Metalink note 229900.1: Integrating and using Web Cache with Forms 9i for Load Balancing
step by step to make the configuration of the following components:
4. Session Binding
Then I try to test the Load Balancing and I got the error FRM-92101 when both OC4J_BI_Forms
instance were running.
IÂ´ve searched Metalink and found note 268830.1: Webcache Won't Load Balance 2 Forms Instances.
Following the note instructions I did the following changes:
Added these lines at the end of HTTPD.conf (machine B):
CookieTracking On
CookieName myformscookie1
Added these lines at the end of HTTPD.conf (machine C):
CookieTracking On
CookieName myformscookie2
In Webcache configuration:
IÂ´ve Changed the default session binding from JSESSIONID to "ANY SET COOKIE" for the
site's session binding.
But even after these changes IÂ´m getting FRM-92101 error on the same conditions.
How can I solve this problem ?
Thank you in advance.
Marcus Santos.
([email protected])

Did you ever Get this to work?
I am having some problems trying to load balance with Oracle Forms, Discover and reports Oracle Application Server Release 10g (9.0.4.0.2) and I was wondering if you could help. Has any one ever got this to work consistently? We are an ERP product written mostly in forms (904) and are trying to implement are largest customer there performance issue so we need the load balancing to work. Will also accept other recommendation as cost effective as solutions.
Site 1:
A: SERVER
     Host as1.xyzco.local
     Version 10.1.2.0.2
     Installation Type Identity Management and Metadata Repository
     Oracle Home E:\oracle\inf_1012
     Farm as1db.xyzco.net
o     HTTP_Server
o     Internet Directory
o     OC4J_SECURITY
o     Single Sign-On:orasso
o     Management
B SERVER
     Host as2. xyzco.local
     Version 9.0.4.0.2
     Installation Type Business Intelligence and Forms
     Oracle Home E:\oracle\mid_904
     Farm as2db. xyzco.net
o     Discoverer
o     Forms
o     home
o     HTTP_Server
o     OC4J_BI_Forms
o     Reports Server
o     Web Cache
o     Management
C SERVER
     Host as3. xyzco.local
     Version 9.0.4.0.2
     Installation Type Business Intelligence and Forms Discoverer and Reports
     Oracle Home E:\oracle\mid_904
     Farm as2db. xyzco.net
o      Discoverer
o     Forms
o     home
o     HTTP_Server
o     OC4J_BI_Forms
o     Reports Server
o     Web Cache
o     Management
All servers Are:
     Windows 2003 Standard Server with current service packs
     Xeon Dual Processor with 4GB ram
     Raid 0 drives 2 for OS and 2 for Oracle
Daniel Brody
[email protected]

Load Balancing Forms Services with an effective healthcheck

I am in the process of configuring two forms 11.1.2 servers running with weblogic 10.3.5 with multiple forms applications clustered across both physical servers. We are looking to load balance to the various forms applications using a hardware load balancer. Can anyone comment on their experience with setting up effective application healthchecks using either hardware or software load balancers?
For example say that we have 3 applications clustered across 2 servers with the following
URLs:
http://server01:7777/forms/frmservlet?config=myapp1
http://server01:7777/forms/frmservlet?config=myapp2
http://server01:7777/forms/frmservlet?config=myapp3
http://server02:7777/forms/frmservlet?config=myapp1
http://server02:7777/forms/frmservlet?config=myapp2
http://server02:7777/forms/frmservlet?config=myapp3
We would need a checking mechanism on the load balancer that could tell if myapp2 was down on say server01 and therefore block traffic to that application yet keep traffic open for the other 2 apps on the same server.
A specific difficulty with forms is that when the database behind the application is down forms services will return an error message within a displayed error form. From the load balancer's point of view the forms services are "up". We need to find a way of detecting that the application is actually available and not just that the forms services themselves are available. To detect that the forms services are available we might normally use the status check:
http://server01:7777/forms/frmservlet?ifcmd=status
however this will only tell use the availability of the forms services on a physical server and not whether any actual applications are available.
I am aware that f5 do a BIGIP offering that includes some Oracle Forms specific components. Can anyone comment on how they have setup Oracle Forms healthchecks using various load balancing methods. In particular if a load balancer is limited to using WGET commands to check HTTP returned content is there a way of checking a forms application's availability and if not how have other people achieved an effective healthcheck?
Many thanks,
Philippe

Did you ever Get this to work?
I am having some problems trying to load balance with Oracle Forms, Discover and reports Oracle Application Server Release 10g (9.0.4.0.2) and I was wondering if you could help. Has any one ever got this to work consistently? We are an ERP product written mostly in forms (904) and are trying to implement are largest customer there performance issue so we need the load balancing to work. Will also accept other recommendation as cost effective as solutions.
Site 1:
A: SERVER
     Host as1.xyzco.local
     Version 10.1.2.0.2
     Installation Type Identity Management and Metadata Repository
     Oracle Home E:\oracle\inf_1012
     Farm as1db.xyzco.net
o     HTTP_Server
o     Internet Directory
o     OC4J_SECURITY
o     Single Sign-On:orasso
o     Management
B SERVER
     Host as2. xyzco.local
     Version 9.0.4.0.2
     Installation Type Business Intelligence and Forms
     Oracle Home E:\oracle\mid_904
     Farm as2db. xyzco.net
o     Discoverer
o     Forms
o     home
o     HTTP_Server
o     OC4J_BI_Forms
o     Reports Server
o     Web Cache
o     Management
C SERVER
     Host as3. xyzco.local
     Version 9.0.4.0.2
     Installation Type Business Intelligence and Forms Discoverer and Reports
     Oracle Home E:\oracle\mid_904
     Farm as2db. xyzco.net
o      Discoverer
o     Forms
o     home
o     HTTP_Server
o     OC4J_BI_Forms
o     Reports Server
o     Web Cache
o     Management
All servers Are:
     Windows 2003 Standard Server with current service packs
     Xeon Dual Processor with 4GB ram
     Raid 0 drives 2 for OS and 2 for Oracle
Daniel Brody
[email protected]

Load Balancing Reports Server

I am supporting an app server for a Forms & Reports application that uses run_report_object to run reports on a Reports Server. This is on 10gR2 (10.1.2.0.2) on Solaris & Linux.
Currently running multiple standalone Reports Servers on a single server (for 3 different projects). Need to prevent one project from affecting another as much as possible (yes, I know they are on the same box....).
I have a requirement to ensure that a hanging Reports Server doesn't prevent other jobs from running. I see that Reports Server clustering is no longer an option. The Reports documentation about how to implement HA basically say just read the AS docs and figure it out. The problem is that using the AS J2EE HA means that you'd HAVE to use the Reports Servlet. Additionally, I don't see how the reports servlet could be called so that more than one Reports server would be used.
I keep hearing about an impending doc about implementing HA on Reports. When is it coming?
Future environments will be multiple AS installs on separate boxes accessing a RAC DB.
So, what's the scoop? How can I implement this?
So, here are my questions:
1. (Two Servers) I believe I could do this on two servers if I had the same Reports Server name on each. If so, could I have two OC4J containers on each server both with the same mount point for the rwservlet application? What else would I need to do to tell OHS to load balance between both since they have the same name.
2. (Two Servers) If 1 above is okay, would it be possible to have two OC4J containers point to two different standalone Reports Servers?
3. (One Server) Can I start up multiple Reports Servers on same box with the same name (I'm pretty sure this is no :-) )
4. (One Server) Like 2 above except on a single server. Two independent OC4J containers accessing two different servlets. Each has a default Reports Server setup. URL would look the same from each.
I'm kind of graping for straws here on how to move ahead. I'm surprised the Reports Server clustering was taken away, but I suspect it is because the underlying Visibroker architecture was changed and there weren't the resources required to redo this. I'm not sure that is a good thing.
Any help would be appreciated.
:-) Steve

Say you have two servers where you configured Reports, i.e. either in full Enterprise Edition or in AS10g Forms&Reports standalone.
For example:
ServerA.oracle.com with port 7777
ServerB.oracle.com with port 7777
Without using a load balancer you would call a Report with:
http://ServerA.oracle.com:7777/reports/rwservlet?report=test.rdf&userid=scott/tiger@orcl&destype=cache&desformat=htmlcss
http://ServerB.oracle.com:7777/reports/rwservlet?report=test.rdf&userid=scott/tiger@orcl&destype=cache&desformat=htmlcss
Now you put a load balancer in front of them and assign it the virtual name:
reports.oracle.comNow you can call Reports with this URL:
http://reports.oracle.com:7777/reports/rwservlet?report=test.rdf&userid=scott/tiger@orcl&destype=cache&desformat=htmlcss
To make it more interesting you create a specific Reports Server on ServerA called repserver_a and on ServerB: repserver_b. You add them into Enterprise Manager with:
$OH/bin/addNewServerTarget.sh repserver_a (on ServerA and with repserver_b on ServerB). You might need to reload opmnctl and emctl with:
opmnctl reload
emctl reloadIn $OH/reports/conf you add this line at the end (use server=repserver_b on ServerB) :
reporting: userid=scott/tiger@orcl destype=cache desformat=htmlcss server=repserver_a %* You'll call your Reports with this URL:
http://reports.oracle.com:7777/reports/rwservlet?reporting&report=test.rdf
Good luck!
Martin

Load balancing on an applicaton with multi-ports

One of our application open 5 ports and other 4 management ports. the ports can not be ranged.
to load balancing this, I did:
make seperate contents rules for every port. and all of them use aca.
Please advice me :
1. how can I group all the ports into one contents rule?
2. every rule for a port means the balancing in only by based on specialy port?
3. Can I balance the load between ports?
4. for administrator ports, what is the better balancing mothed?
Any comments will be apprecaited
Thanks in advance

Gilles,
What will be the best keepalive on the services to use in this case?
I have had a problem where I tried the same setup you have suggested above but what happen is i get a black hole if the service port(s) goes down on one of the servers.
At the beginning, I used the default ICMP keepalive and then tried the port xx keepalive but because the servers have multiple ports and if the port that is not monitored by keepalive goes down, the content rule still think that the service is still up and this is where I get i blackhole. To get around with the problem I have created multiple services, (one for each port) and configured the subsequent keepalive.
1. is there a better way of doing it? i,e script
2. is there any documentation on Cisco website on how to use the scripting tools on CSS?
Thanks again,
Ben

Oracle RAC load balancing advisory services query

Hi,
I have a query on RAC load balancing advisory.
Is it possible to create a service for exeuction of a PL/SQL package?
We have UNIX batches which are set of PL/SQL packages that may or may not be linked are executed daily. These batches consumes lots of resources.
So i want to configure my services such that say pkg1 will go to node1 and pkg2 will go to node2 and so on and so forth.
Is it possible to achieve this with Net services and LBA?
If not, is there any other way i can do this?
Thanks
AT
Message was edited by:
Amit Trivedi

Hi, my answers are:
Is it possible to create a service for exeuction of a PL/SQL package?Yes, that is posible, you can create a service for execute PL/SQL Packages, in fact you can create any service that you need and assign the resources and priorities for this service.
Is it possible to achieve this with Net services and LBA?Yes, thats posible, you define the priorities at service level and where the service must run at node level.
If not, is there any other way i can do this?Yes, if you dont wish using the LBA and services you will must create statict definition into tnsnames file for operate connection string and indicate where must connect the session for execute the package.
Luck.
Have a good day.
Regards.

Load balancing Reports Services 10g with WebCache?

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