Node Load Distribution

Hi All,
We are running a 3-Node RAC database. Is there anyway we can make a (few) client connections to connect only to NODE-3, and in worst case, if NODE-3 is down, make those connections automatically connect to Node-1 and Node-2.
Oracle Version - Oracle 10g
OS - SuSE Linux
Thanks

It's easiest to just let "netca" create the tnsnames.ora entry, create the CRS resource, and online the resource -- which adds the new entry to the spfile "service_names" parameter, and issues "alter system register" to the instance to get PMON to re-register dynamically with all listeners specified in "remote_listeners" spfile parameter entry. The dialog screens allow you to choose preferred/standby status for each cluster node, with at most 5 clicks of the mouse. If you're scripting creation of dozens of services, commandline is the way to go. But for proof of concept testing of a single service, "netca" is the preferred way. Not to mention manually editing tnsnames.ora is discouraged given it is too easy to mis-format an entry causing much grief in debugging.
I'm a commandline person, but this is one task where the gui is well suited.

Similar Messages

Load Distribution Versus Parallel Jobs processing

Hello,
I would request feedback.
In Industry Solutions - PS, for mass activity - Automatic Clearing run, there is an Technical Settings tab.
This tab has Load distribution settings and an value that can be defined for Number of Jobs.
If I put an value greater than 1, so many number of jobs gets executed in the background.
I would request clarification on the following :
1. What is its use / benefits of putting defining an automatic load distribution ?
2. Does this setting equals the Config settings for IMG - Finnancial Accounting- Contract AR - Technical Settings - Prepare Mass.
In here, we can set parallel jobs that can be initiated by providing an maximum number of jobs under the job control panel.
Does this setting override Load distribution settings or vice-versa OR IS this an different setting ?
3. What is the difference between Load distribution versus parallel Jobs ?
Any feedback, most welcome and appreciated.
I am functional consultant and hence unable to distinguish between the two.
I am not sure if this query needs to be posted here, but I have also posted the same in IS fourm too.
Regards
Bala
email : [email protected]

Hi Bala,
In any Mass Activity you will find Technical Settings tab. There you will find Parallel Processing Object and Load Distribution. In Parallel Processing Object, you can select object according to Input depending upon which you will able to divide the job. For example, GPART is used when job have to divide depending upon Business partner. In Maintain Variants you have to create Variants.You have to give Variant name and value in either Interval length or Number of Intervals. Interval length will decide what is the maximum number of object will be processed in a single part. Number of Interval is the number which tells job will be divided in how many parallel process.
For example, let you r running a parallel process for 1000 Business Partner.You choose GPART as object.Now if you put 200 in interval length it will divide job in 5 parallel process.If you put 10 in number of interval it will divide the job in 10 parallel process each of 100 Business partner.
After creating variant, you use it in technical setting.
Let u already define variants which divide the job in 30 but you want maximum number of parallel process will be executed at a time is 6.Then put 6 in Number of jobs field in automatic load distribution.
Hope this can able to clear your question. Still if have any doubt feel free to ask me.
Thanks and regards,
Jyotishankar Dutta

Can an xml node load an external htm file?

I wanted to know if i could have an xml node load in an
external html page
src="filefolder/@nodename" works with an image tag, but how
would I accomplish this with a <div> and an html file
I tried
<div id="main" spry:detailregion="myviewer">
<div>{@caption}</div>
<div>{@fullimage}</div>
<div>{filefolder/@nodename}</div> though get
nothing because there is no src.
</div>
I have another strategy to use if not. However, it would be
sweet if I could.

Hello,
I'm not sure this will work but you can give it a try to the
following code based on the
update
content sample:
<div id="main" spry:detailregion="myviewer">
<div>{@caption}</div>
<div>{@fullimage}</div>
<div id="nodename"></div> though get nothing
because there is no src.
<script type="text/javascript">
var element = document.getElementById('nodename');
Spry.Utils.updateContent(element, '{filefolder/@nodename}');
</div>
Please note that any CSS and JS code within the loaded
content will not execute correctly if you won't add the code in the
current file instead of the loaded file. Also please make sure that
the paths in the loaded HTML fragment are relative to the current
file and not to the HTML Fragment.
Regards,
Cristian MARIN

Monitoring load distribution across multiple cores?

In SLS is it possible to peek at the load distribution across the cores of a multicore CPU?
Thanks?

Depending on exactly what you are interested in...
Applications > Utilities > Activity Monitor
[iStat|http://www.apple.com/downloads/dashboard/status/istatpro.html]
There are other options.

Sm59 & load distribution

Hi Friends,
I have a question about sm59. Now, I am creating r3 connections from sm59. Lets say the connection name as 'TEST'. In this connection I don't select load distribution. And when I am calling the bapis;
call funciton 'BAPI1'
destination TEST
call function 'BAPI_TRANSACTION_COMMIT'
destinaton 'TEST'
I see that If I don't call BAPI_TRANSACTION_COMMIT BAPI1's change operations is not implemented. And If I call BAPI_TRANSACTION_COMMIT, BAPI1's change operations are done. So, I think that 'different function calls via same destination are using same session !!' Maybe this assumption is wrong, If wrong please correct.
On the other hand, I want to use load distribution in R3 connection. My real question is in this point. As known, in load distriution selection, the balancer distributes the client to different servers. I need to call two function(BAPI1 and its commit). And there is a possibility;
while calling BAPI1, server1 is used
while calling COMMIT BAPI server2 is used.
Like a this possibility, my BAPI1's change operations will be done? I mean that different server will use the same session?
And can you give document information, about load balancing in sm59.
Thanks.

Hi Huseyin,
Its really weared situation...really speaking if you call two BAPI's separately it cannot be a part of same process...
...Anyway, I think correct solution would be to create another z wrapper function module and inside z-wrapper function module you can call both BAPI's...As we know its is manadatory to call Commit Work after calling BAPI's in order to reflect changes.
One more solution you can call Inbound Proxy and you can call both BAPIs there.
Nilesh

Getting incorrect value in CCMS: Load Distribution

Dear Experts,
I am Using Ecc 6.0 with db2 udb(DB6) on Aix Os.
I have configured load balancing on my sap system.
But when i am going to see average time of load distribution it appears like this
Instance            Resp.time(ms)
PRD_02             1,480
PRD_01                  1-
PRD_00               2,978
You can see that value for PRD_01 is (1-).
how to correct this value...
<removed_by_moderator>
Do NOT offer rewards*
Thanks in advance,
Dhiraj
Edited by: Juan Reyes on Jun 1, 2010 12:03 PM

> PRD_02             1,480
> PRD_01                  1-
> PRD_00               2,978
- Is that instance included in the load balancing (SMLG)?
- Is that instance configured to have dialog processes?
Markus

T5220 cpu load distribution

I have a T5220 with 64 virtual CPUs/32 GB RAM running java/weblogic 8.1.
The application scales well on M5000 and V890 servers.
But looking at the "usr" column below, the load is not homogeneous.
Java is confined in a 16 CPUs processor set, but I have she same result when not using processor sets.
"top" shows 92% cpu idle. No network or i/o contention.
mpstat results (last columns):
0 0 0 99
0 0 0 100
usr sys wt idl
31 3 0 66
23 2 0 74
13 1 0 86
5 1 0 95
24 3 0 73
4 1 0 95
1 0 0 99
0 0 0 100
31 4 0 65
16 2 0 82
3 0 0 97
0 0 0 100
20 2 0 77
6 7 0 88
1 0 0 99
0 0 0 100
usr sys wt idl
30 3 0 67
22 2 0 76
14 1 0 85
4 1 0 95
23 3 0 74
5 1 0 94
1 0 0 99
0 0 0 100
32 4 0 64
16 2 0 83
2 0 0 97
1 0 0 99
20 2 0 77
5 6 0 89
2 0 0 98
0 0 0 100
usr sys wt idl
31 3 0 65
22 2 0 75
any clues?
Thanks
Edited by: smvalverde on Oct 6, 2008 12:15 PM
Edited by: smvalverde on Oct 6, 2008 12:26 PM
Edited by: smvalverde on Oct 6, 2008 12:33 PM

hi there,
i have encounter the same problem with cpu load distribution. i had a java web application power by postgresql. the same application run very well on solaris 10 x86 platform. but on t5220, the same application setup was very disappointing. the application was not able to attain any high cpu utlization. i could not find any bottleneck any with vmstat, iostat monitoring tools.
hope u have some good discoveries to over come this problem.

How does failover and load distribution work in Operations Manager resource pools?

Hello everyone,
I have a couple of questions in regard to failover and load distribution in resource pools.
What is the criteria for an x-plat or network device to initiate a failover?
How is load distributed in a resource pool - Is it round-robin, performance based or something completely different?
In case more than two management servers are in the same pool, and a management server becomes unavailable, how is load distributed among the remaining resource pool members?
Any help is appreciated.
Thx,
Claus

Hi,
Resource Pools are a collection of Health Services working together to manage instances assigned to the pool.
Workflows targeted to the instances are loaded by the Health Service in the Resource Pool that ends up managing that instance.
If one of the Health Services in the Resource pool were to fail, the other Health Services in the pool will pick up the work that the failed member was running.
And I would like to share this article with you. Hope it helps.
http://www.systemcentercentral.com/how-does-the-failover-process-work-in-opsmgr-2012-scom-sysctr/
Niki Han
TechNet Community Support

BPC 7.5 NW Master Data Text Node Load with Hierarchy Intervals - Duplicate

Hi,
Does anyone have ideas on how to get past this error (besides a BADI)?
I am loading master data text nodes from a BW hierarchy (say 0COSTCENTER) that has intervals defined for cost center nodes. The problem is that the text nodes fail since there are duplicate values in the hierarchy table.
Master data (dealt by table level) has errors
Detected duplicate member ID 'F100'
Detected duplicate member ID 'F100'
Detected duplicate member ID '1000'
Detected duplicate member ID '1000'
etc...
Thanks!

Hi Virginie,
You should be able to see an example in many threads; look for an example to Restriction of bw infoobect(not mapped to dim)
You can also make a restriction under the InfoObject name when you run the DM package.
Hope this helps,
Gersh

Load distribution not so even for multicast traffic (ECMP) between a GSR 12410 (XR) and a CRS-1 router

Hi,
I have a scenario in which I see the multicast S,G streams are distributed not so even in the 3 interfaces between a GSR 12404 (XR 3.8.4) and a CRS1 (XR 3.6.2). The multicast mode is SSM.
The total S,G (sources and multicast groups) are 82.
The topology is as follows:
                                               ---link 1--------
Multicast sources ----- CRS1 ---link 2-------- GSR12404------- Receivers
                                                ---link 3--------
From the total of 82 S,G coming from multicast sources, I see the following S,G distribution between the three links:
Link 1: 37 S,G
Link 2: 21 S,G
Link 3: 24 S,G
The big question is why the Link 1 has very different number of S,G compared to link 2 and link 3?
Multipath is enabled on both links. I copy the multicast configuration of CRS and GSR that is the same:
multicast-routing
address-family ipv4
interface GigabitEthernet0/2/0/0
   enable
interface GigabitEthernet0/2/1/1
   enable
interface GigabitEthernet0/2/1/2
   enable
nsf
multipath
ssm range SSM
Thanks,
Carlos.

Hi Agherardi,
Did you try to disable your firewall and refer the following KB to confirm you have choose the correct Affinity and Load-Balancing Behavior of the Custom Port Rule.
Specifying the Affinity and Load-Balancing Behavior of the Custom Port Rule
https://technet.microsoft.com/en-us/library/cc759039(v=ws.10).aspx
More information:
Using NLB
https://technet.microsoft.com/en-us/library/bb687542.aspx
I’m glad to be of help to you!
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Background processing - load distribution guidelines

Hello,
We are using the HR module (ESS/MSS type Web application) in an ECC6 system.
Due to the business needs we need to run heavy interfaces job.
Basically the interfaces background jobs would turn round the clock and we fear this will impact the end users running the dialog transactions.
While we can scale up the environment I was wondering if there are any guidelines or best practices from SAP regarding SAP background processing and interfaces. Recommendations like running interfaces background jobs outside businnes hours. Or anything similar that could help us approach the topic in a good way.
Currently we fell that we will misuse the system and we will generate a big impact on the end-user dialog performance.
Any hint is greatly appreciated,
Kind Regards,
Florin

you can use logon load balancing in scheduling those background jobs,
Re: Scheduling background job on Logon group
Re: Scheduling background job on Logon group
or you can speficify some particular jobs to be run only on application server so as to avoid the load in CI
and following also might help you
http://help.sap.com/saphelp_nw04/helpdata/en/c4/3a7f39505211d189550000e829fbbd/frameset.htm

Deferred node loading

Hi everyone. This is a bit of a cross-post because I didn't realise that this forum was here (I just posted in the Advanced Language Topics area). So I'm sorry about this, but I thought that I would have a good chance of finding out what I need here.
(Promise that I won't do it again :)
Anyway, my problem is is that my XML files are very large (around ~13Mb) and when I try to load them with the standard javax.xml.parsers.DocumentBuilder class I get an OutOfMemoryError.
I have been looking around but the subject of XML parsers and the options available when using them seem to be quite complex. I was just wondering if anyone could give me some pointers as to how to load large XML files.
Any help would be greatly appreciated.
Ben

you might want to consider using SAX to parse such a big file: http://java.sun.com/webservices/docs/1.0/tutorial/doc/JAXPSAX.html

Load distribution of a Planned Order Operation

Hi All,
Need help in understanding an issue here.
For a Planned Order, detailed scheduling happened ,and schedule and Cpacity requirements were generated.
This is the case with just 1 operation. The requirement of this operation is of 1 Hour and schedule was created in Planned Order for the date- 01.07.2014.
But when we go for the capacity evaluation, in CM01> It shows load devide over two periods> 30.06.2014 and 01.07.2014.
That is,
For, 30.06.2014 load is-->0.614 hrs. Though, Latest start data and time still is same as in Planned order[01.07.2014]
and for 01.07.2014 load is>0.386 hrs. Latest start data and time still is same as in Planned order[01.07.2014]>Which is normal
That is a total of 1 hour.
Please help me understand what made this happen in Capacity evaluation, why we have different data in Planned Order and in CM01.
Why the load got devided over
Regards,
Avinash

Hi,
To add further and to more precise, the issue is:
In CM01[or in any capacity evaluation tcode], In a particular maonths load[Period] the opeartion from different month is showing up.
For example: if Period[month] 06 is veiwed of a Workcenter load, a line[load appears], whose earliest date is in 7th month[01.07.2014].
I expected to see, only Workcenters scheduled in 6th month to show up in the load evaluation.
Please look at the screen shot.
Regards,
Avinash

Application Discovery and Load Balancer Service Application - Load Distribution

Hello,
We have a four server farm with no external load balancer. All of the servers are configured as WFEs.
Is there a console in central admin or in site settings where I can see which request goes to which server?
Many thanks,

Thank you Alex.
It has been set up this way ever since the application went live, why or who did this I do not know. The application is mainly used as a docu-share and there are a fair bit of users (~30,000) on it now. Bulk of the users access it once a month.
I think it probably is time to change this design as users have started complaining about slowness. We tried putting in an external load balancer, but it made things worse.

SAP XI Load Distribution Analysis

Hi,
We are running XI in HA mode. I would like to find out how many messages are processed by CI and DI respectively. Can we use SXMB_MONI to give these statistics?
How to find out if a specific message displayed in SXMB_MONI search result was processed by CI or DI?
Thanks
Vijay

Hi,
Follow this blog this may helpful to you
Handling Large files in XI
/people/pooja.pandey/blog/2005/10/17/number-formatting-to-handle-large-numbers
file size can be handeled in client java proxy and the message is parsed in xi. this will not have much of performance issue. but yes when the smae is handeled by xi. and yes this scenario can be efficiently handeled from java client proxy
limit on the number of 'field-set' lines you can send to the ITS?
https://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/docs/library/uuid/72e2bb90-0301-0010-e883-c390ad8a975a
Processing huge file loads through XI
/people/stefan.grube/blog/2007/02/20/working-with-the-payloadzipbean-module-of-the-xi-adapter-framework
/people/aayush.dubey2/blog/2007/10/10/zip-transfer-unzip-increase-the-performance-of-your-java-abap-applications
/people/alessandro.guarneri/blog/2007/02/21/sap-xi-acting-as-a-huge-file-mover

Node Load Distribution

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