Load balance server
Hello all,
I am using Hyperion v11.1.1.1.0.
I want to install FDM 11.1.1.
Will it work fine with hyperion 11.1.1.1.0?
It is written in the documentation that we need to install & configure Load Balance Server
properly prior to installing FDM.
How to install Load balance server and from where will I get the software for Load balance server?
Thanks
As Gilles said you need to make sure that the return traffic from the real server should come back to CSS.
Your routing infrastructure should ensure that flow should be the following for both "real server in the same DC" & "Real Server in Different DC".
1. Client Traffic should hit the VIP configured on CSS.
2. CSS should forward the client request to the Selected Real Server.
3. Real Server's Response should reach CSS. (It should not go to Client directly)
4. CSS should send the response on Real Server's behalf.
As long as the above conditions are met you are fine. Step 3 is the key and becomes could become tricky for Remote Real Servers.
HTH
Syed Iftekhar Ahmed
Similar Messages
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Hi Expert's
I am working on Netweaver BI integrated with EP. while creating JCo destinations for both model and meta data, we have an option of selecting load balancing server and application server. the connection with application server is working fine but when come's to load balancing server it is asking for system group.
Added to this we are working on single server. Pls let us know is system group is necessary? also let us know where to create system group?
Regards
SubbarajuHi Ashok,
As I already mentioned we are working on BI 7.0 We are facing problem while Configuring JCo destinations In JCo we have maintained Meta and Model Data using load balancing server and application server Now when using Tr.RSPLAN and selecting START MODELER it is routing into local host. But after logging, It is routing to standard SAP host (host=pwdfm101) instead of our local host .
Note: Routing means opening the web Dynpro page.
I hope this makes things clear.
Regards
Subbaraju -
My Application is handled by three load balanced servers.I have a functionality in which first i send a request for a document printing.This request is posted in Database.Then a backend script runs and takes each requets in DB and executes and creates a file and places in server space. This works fine when i have only one server.But when i have load balanced servers user can give request for print from one server(he does know where from he is giving) and backend shell scripts can take the OPEN record from DB and execute in another server.So user is not able to find the document thought his request is processed.I have tried to know the DNS names of teh server whose are taking the print request so that i can track. But when i check with ServletRequest.getServerName() but i always get the application URL not teh specific load balance server name. I am tryong my luck with java.net.InetAddress
Hey i could solve this problem. i have used java.net.InetAddress class and its methods to know the system name on which my code is executing.
Viswanath -
Error in creation of JCO with Load balancing server
Hi,
We are using a ABAP user base for our WEBAS server 6.40 (with ABAP+JAVA). i have created a Public group in concerned ECC 5.0 system. I have already configured SLD, and then i maintain data supplier bridge in SLD and run RZ70 in ECC 5.0 system to load system information.. i can see details in SLD ..
now i am trying to create JCO connections .. here i am unable to create JCO with load balancing option.. i get
com.sap.mw.jco.JCO$Exception: (102) RFC_ERROR_COMMUNICATION: Connect to message server host failed Connect_PM TYPE=B MSHOST=<servername> GROUP=PUBLIC R3NAME=SID MSSERV=sapms<SID> PCS=1 ERROR service 'sapms<SID>' unknown TIME Fri Jun 16 12:41:20 2006 RELEASE 640 COMPONENT NI (network interface) VERSION 37 RC -3 MODULE ninti.c LINE 505 DETAIL NiPGetServByName2: service 'sapms<SID>' not found SYSTEM CALL getservbyname_r COUNTER 1
i am able to create single server JCO, but it fails in load balancing.. is there anything i have missed out in settings...
Thanks and regards,
SudhirThanks, Bogdan Rokosa
I have the same problem,and solved it following the steps provided by Bogdan Rokosa :
you must insert an entry for your R3 system
(like: sapms<SID> 3600/tcp)
in services file
(C:\WINDOWS\system32\drivers\etc\services) on Java WAS.
I test the Jco successful without restart J2EE Engine. -
Load Balancing, Server and / or Client ?
Hi
I am experiencing a problem with the connection pooling in odp.net. I have a simple test app that creates a connection, executes a query, populates an object then closes the connection. I have found that when I have client side load balancing on via the odp.net connection string property many connections are made unnecessary (sometime the actual number created reaches the max pool size but the numbers differ randomly). It appears that rather than a free connection in the pool being used more connections are being created which defeats the point of having a connection pool. I do have server side load balancing configured correctly also. Due to this finding can someone possibly answer the following questions.
a) Do I need both server side and client side load balancing set?
b) If I do why is the above behaviour being seen? If not could you give me a short explanation as to why not?
Current set up is 11g (patched to 6, awaiting 7 to be applied) RAC, 2 nodes.
Below is the C# code used while testing this. The table queried is a simple person table containing 16000 rows if data.
OcConnection = "User Id=XXX; Password=XXX; Connection Lifetime = 60; Data Source=(DESCRIPTION=(ADDRESS_LIST=(FAILOVER=on)(LOAD_BALANCE=off)(ADDRESS=(PROTOCOL=tcp)(HOST=XXX)(PORT=1521))(ADDRESS=(PROTOCOL=tcp)(HOST=XXX)(PORT=1521)))(CONNECT_DATA=(SERVICE_NAME=MyFirstTest))); Pooling=true; HA Events = true; Load Balancing = true";
Code:-
Oracle.DataAccess.Client.OracleConnection con;
con = new Oracle.DataAccess.Client.OracleConnection();
con.ConnectionString =OcConnection;
con.Open();
// the command object to use for this test
OracleCommand cmd = con.CreateCommand();
cmd.CommandText = "select * from PERSON";
OracleDataReader rdr = cmd.ExecuteReader();
List<test> listTest = new List<test>();
while (rdr.Read())
test dc = new test();
if (!rdr.IsDBNull(0))
dc.id = Convert.ToInt32(rdr.GetValue(0));
if (!rdr.IsDBNull(1))
dc.forename = rdr.GetString(1);
if (!rdr.IsDBNull(2))
dc.surname = rdr.GetString(2);
if (!rdr.IsDBNull(3))
dc.street = rdr.GetString(3);
if (!rdr.IsDBNull(4))
dc.city = rdr.GetString(4);
if (!rdr.IsDBNull(5))
dc.postcode = rdr.GetString(5);
if (!rdr.IsDBNull(6))
dc.country = rdr.GetString(6);
if (!rdr.IsDBNull(7))
dc.email = rdr.GetString(7);
if (!rdr.IsDBNull(8))
dc.dateadded = rdr.GetDateTime(8);
if (!rdr.IsDBNull(9))
dc.randWords = rdr.GetString(9);
if (!rdr.IsDBNull(10))
dc.uniqueNumber = Convert.ToInt32(rdr.GetValue(10));
listTest.Add(dc);
rdr.Close();
con.Close();
rdr.Dispose();
cmd.Dispose();
con.Dispose();
Thanks for your time
VictoriaHere are the HTTP Headers as monitored on the client side. Notice the good.txt file includes a GET as it's initial request. All works fine in this case. However, the initial request in the bad.txt is a POST. This is odd since the URL was opened using the same shortcut in both incidents and the browser was closed between each trace that was taken. I've also reviewed the shortcut with notepad to verify it does not include unwanted data such as the JSESSIONID info....etc.
Once you have reviewed the HTTP headers, I have these questions.
1. IIS is sending the 100 Continue messages as you mention, but why is the CSS injecting the cookie in a 100 response that is not typically processed by the client? The bad.txt file shows the client receiving two ARPT cookies because the first cookie in the 100 continue response was ignored.
2. I know Cisco is not really in the business of troubleshooting browser behaviour. But do you know why the browser would behave differently....GET in one request and a POST in the next? We do not wish to get into modifying the browser, so I'm hoping we can provide a solution on the server side that will allow the browser to function this way if it chooses to do so. Do you think it would make sence to push the state management up a level to the cookie handed out by JRUN? This way, the cookie would not be handed back in a 100 response from IIS, and we could tell the CSS to monitor the JRUN cookie. Of course this would require we determine how to manage this cookie either by modifying to cookie to have static data for each server, or by using the right method of hashing...etc.
Chris -
System with load balancing server
Hi All,
We are having SAP NW 7.0 Portal and back end we have R3 implemented in a cluster environment. The system object in EP have used "System with Load balancing" template; using the LOGON group and the other related parameters.
But we have some problem with the ITS and WAS parameters; since we are using some Transaction iViews.
Let me explain.. for the R3 cluster we have 2 systems PROD1.domain.ext and PROD2.domain.ext. Now in the system object in portal, how to specify the parameters for ITS and WAS parameters? Since the host name in these we need to specify a single server which defeats the basic purpose of having clustered environment.
Can any one please help in resolving this issue.
Thanks,
SravanthiHi Sravanthi,
Please check the below for finding ITS and WAS parameters from backend :
For ITS - Go to SE37 >> Utilities >> Setting >> Click on ICON Right Top Corner in popup window >> Select Internet Transaction Server >> you will find the Standard Path and HTTP URL.
For WAS - Go to SE37 >> Run FM - RSBB_URL_PREFIX_GET >> Execute it >> you will find PRefix and PAth paramter for WAS.
Please refer to this may help step-by-step : How-to create a portal system for using it in Visual Composer
Hope it helps
Regards
Arun -
Webdispatcher SSL load balance server mismatch errors
We are setting up a webdispatcher to access an Enterprise Portal with multiple instances. Currently it is working but we are having to overide host mismatches. in webdispacther log we see
[Thr 4856] Mon Mar 07 11:38:02 2011
[Thr 4856] MatchTargetName("aaa.mycompany.com", "CN=bbb.mycompany.com, OU=xxx, O=ooo, L=ccc, SP=sss, C=US") FAILS
[Thr 4856] SSL NI-sock: local=##.21.13.137:50746 peer=##.21.13.131:51001
[Thr 4856] <<- ERROR: SapSSLSessionStart(sssl_hdl=0000000008565100)==SSSLERR_SERVER_CERT_MISMATCH
The Portal instances are on
aaa.mycompany.com
bbb.mycompany.com
Currently have a CA approved certificate for each server installed in the portal. Dispatcher on aaa uses aaa cert, dispatcher on bbb uses bbb cert.
Message server is on aaa, but it will load balance and place you on either instance.
have following related parameters
wdisp/ssl_encrypt = 2
wdisp/ssl_auth = 2
wdisp/ssl_cred = C:\usr\sap\XXX\W00\sec\XXX.pse
wdisp/ssl_certhost = aaa.mycompany.com
wdisp/ssl_ignore_host_mismatch = TRUE
C:\usr\sap\XXX\W00\sec\XXX.pse has ssl cert of both aaa and bbb servers.
All seems to be working, as users are load balancing. They are not getting certificate mismatches in their browser anymore. We are getting the SSSLERR_SERVER_CERT_MISMATCH errors, but the messages do not seem to cause an issue since we have wdisp/ssl_ignore_host_mismatch set.
Can we eliminate those mismatch errors instead of masking the problem with wdisp/ssl_ignore_host_mismatch?
Should each portal instance have their own ssl cert, or is there a way to use one cert such as the aaa.mycompany.com cert on each portal instance? It seems like that might eliminate the mismatch errors. However, what happens when you go directly to the bbb.mycompany.com portal instance? there is a certificate error if you specify aaa's and you go to bbb. I was wondering if the wdisp/ssl_auth and wdisp/ssl_certhost are valid in the portal system so that each server uses the aaa server and certificate. I could not tell if this parameter is valid for java-only portal systems.
Thanks for your help.
Edited by: Fett Patrick on Mar 7, 2011 8:35 PMThank you Martin for your prompt reply. Can you clarify please, can we use the wdisp/ssl_certhost parameter in the instance profiles of the portal instances? I wasn't sure if that is only valid for webdispatchers or can also be used in abap/java systems?
We orginally had the aaa server certificate listed for each dispatcher in the portal under ssl provider runtime server identity. That caused a browser "certificate error" when accessing the bbb server. So we then installed an ssl certificate for bbb for its dispatcher. We could then go to either server with no browser "certificate mismatch" error.
Then when we added the webdispatcher, we started getting the server mismatch errors at the webdispatcher level. If the wdisp/ssl_certhost can be used in the portal profiles, then that would hopefully resolve direct access or via web dispatcher aceess mismatches. I.E. only the aaa ssl certificate would be used and parameters would be set at both the webdispatcher and portal profiles
Thanks, Pat. -
How to load balance serving MP4 files via AMS
Hey gurus,
We have one centralized storage server that stores videos, Lets call this Server A, we have 4 more servers that we want to use to load the files from Server A to load balance and location balance the loading of files.
Servers B-E are on a private VLAN with Server A; so what we're doing now is mounting Server A on to Servers B-E and serving the files via AMS; this has proved to be quite inefficient.
For Live Streams; we use multi-point publishing to achieve this; is there a way to do this with recorded files?
Please advise!
ThanksHere are few bits of info:
For load balancing for Analytics, that isn't officially supported yet for the UI and Administration components. It might work with sticky sessions from portal-to-analytics but that doesn't get you much. Improving the options there would be a good enhancement request.
For the collector, I think there are two important things to remember. Use broadcast mode. I've never actually seen it in unicast mode, but broadcast definitely works. Also, remember that this is all managed by Portal and Analytics - you don't use your own load balancer between Portal instances and the Analytics Collector instances.
Finally, ALUI Directory is not certified to be load balanced yet. On a separate note, ALUI Directory has a socket leak on Windows due to a bug in the version of Jrockit that ships with it. Upgrading the embedded application server for the ALUI/WCI installation to jrockit-R27.5.0-jdk1.5.0_14 will resolve it. -
Hi,
We have defined 2 servers (server1,server2)in FDM and also added these servers in Machine profile.
We are executing UPSshell.exe which should place .dat file in server1. The server name is also specified as server1 in Upsshell script. But, the issue we are facing is, on first execution, .dat is placed in openbacth of server1,while on second execution .dat is placed in server2. This is causing issue in our dataload. Batch load script is looking for file in server1 and since the file is in server2, datais not getting loaded. Can anyone let me know wht am I missing here , as the .dat file is saved in server2, even after specifying serever as server1 in upsshell.exe script.
Appreciate early response as this is refraining us from proceeding ahead ..ThanksYou need to have a single FDM application folder share point, such as FDMDATA and then your application sub-folders beneath it.
Then your application path should be specified as UNC path (\\ServerNameFDMDATA\AppName)
You can update the path using <Add Application>
A) Choose <Add Application> at the login form
B) Login and highlight the application and choose "modify"
C) Update the application path. -
Hi Gurus
If i have Installed Foundation services in 4 environments, How HFM will switch to another environments based on Users load ?
Do we need to write any kind of scripts or functions?
regards
Sarillaself
-
Two load balanced server sending requests to external system on different protocol
Hi,
I have two loadbalanced OEG servers (server A and server B) with same endpoint configurations in envsetting.props. But when requesting the service, it is creting different URI in both servers. In one of server (server A)it sets URI with following details :
DEBUG 30/Mar/2015:07:29:34.356 [92b0e940] Set host='abc.tdc.dk'
DEBUG 30/Mar/2015:07:29:34.356 [92b0e940] Set port='80'
DEBUG 30/Mar/2015:07:29:34.356 [92b0e940] Set scheme='https'
and fails with following error : ERROR 30/Mar/2015:07:29:34.370 [92b0e940] [SSL_connect, 0x1220]: error - SSLv2/v3 read server hello A.
However another server (server B),sets URI as :
DEBUG 30/Mar/2015:07:29:34.356 [92b0e940] Set host='abc.tdc.dk'
DEBUG 30/Mar/2015:07:29:34.356 [92b0e940] Set port='80'
DEBUG 30/Mar/2015:07:29:34.356 [92b0e940] Set scheme='http'
and successfully processes the request.
So can you please help here to know even if we are using same endpoints configuration (abc.tdc.dk ) and port (80) on both the servers , then why the URL is set as http on one of server and https on another.
Thanks !!!
AkshayHi
Thanks for immediate respose. I tried the ping/acknowledgement example in the biginning itself. It doesn't work. I also tried by changing the agents ( to respective values suitable for my systems) of that example. Then also it failed. The error in that case also same. The message will not propogate from the out going agent. -
Server Load-balancing and ACL router decision
Hello,
My 2 server farm distribution switches are running in "hybrid" mode, with CAT OS on the switch and IOS on the MSFC.
My server team is asking to block traffic to a specific server that is load balanced using Cisco's CSM load-balancer which is also installed in the chassis.
The question that I have is this.
Does anyone know in what order the MSFC will inspect and apply the ACL and when will the CSM make the load balancing decision?
The reason I need to know this is that the CSM is setup in bridged mode, where traffic to the server comes into the MSFC with a destination IP of a VIP which resides on the CSM. Subsequently, the CSM forwards the traffic to the one of the real servers in the load-balanced server farm after it makes its load-balancing decision. Which ocurrs first??
Does anyone have any info on what ocurrs first and so forth??
Is there a link to Cisco's website that explains this process??
Thanks in advance for your help.
TonyTony,
It sounds as if your setup is like this:
Client VLAN----MSFC----VLAN A----CSM----Server VLAN
With VLAN A and Server VLAN being the same IP subnet.
In this case all client traffic reaching the VIPs on the CSM first traverses the MSFC. So, if you want to block traffic to a specific VIP or Server IP you can do that on the MSFC's Interface for Client VLAN. You could configure an access list that filters inbound traffic on that VLAN interface.
Make sense?
-Brad -
How to change the OraSSO login link in webcache/load balance
Hi
we have 10gAsR1 installed as a Portal instance. We have 6-server
load balancer => webcache as loadbalancer (listening port 80)
Wb ch1 and wb ch2 => webcache (listening port 7777)
portal1 and portal2 => Portal listening 7778
infra =>Infrastruture with repository Portal/Oracle SSO (listening 7777)
This set up is working fine for our intranet setup, now we need to open this for couple of external clients. Well initially we need to open on the load balancer server on port 80 for external team to access, it works fine when we make it publc access.
Now when we need to make it SSO (siteminder) enables, when users click on login link it first goes oracle sso then it internally redirects the page to site minder sso.
Well, I have noted that the sso server details are mentioned in global setting sso/oid details. Since we need to open this for external client we have to add a DNS entry for this so that we can allow its access over firewall..
Now I have made DNS name change at my infrserver level, now I need to update the change at the load balancer server (where wheb chache is running).
Any one know how to chang the URL at load balancer.
I am struck at this point please suggest how should i proceed..
Thanks,Extract from Personalization Guide - Page Footer - Personalization Considerations
* If you wish to personalize the URL that points to the Privacy Statement for a page that displays a standard Copyright and Privacy (that is, its Auto Footer property is set to true), set the Scope to OA Footer, in the Choose Personalization Context page of the Personalization UI.
* If you wish to personalize the URL that points to the Privacy Statement for a page that displays a custom Copyright and Privacy (that is, its Auto Footer property is set to false), set the Scope to Page in the Choose Personalization Context page of the Personalization UI. In the following Page Hierarchy Personalization page , identify and personalize the Privacy page element. -
Hi To all
i have created one socket application which handles 150-180 request per second . Now i want to implement load balancing for that.It is session application.
does anybody know about this.
Thanks in advance
Regards,
PanditYes, you can 'redirect' an inbound request from one machine to another. Beware though that using an IP redirect may not work for all machines - as some will block packets like that in order to avoid network attacks.
For the most part, it should work.
You could also create a load-balancing server yourself. This is a 3-host option, where you have a static machine that ALL client initially connect to. Then a server is selected to be the first to be used. After that the servers will report when a connection is opened, and closed on it to the load-balancer.
This is one of many different ways of working it. -
Virtual Hosts for Load Balancing
Hi all,
So I have two identical servers, that have SOA Suite installed pointing to the same database. (RHEL 4) I have configured the mod_oc4j.conf file for round robin, and then I created a virtual host on the httpd.conf file to point to the load balance hardware.
It worked! But with a slight issue. The Load Balance server is orasoaqa.tmpw.net:7777, which opens the main Application Server page. However, when I click on BPEL console, or ESB, it continues using the orasoaqa.tmpw.net:7777 virtual, which of course, breaks even trying to login.
What am I missing here? Here's the entry I added to mod_oc4j.conf:
Oc4jSelectMethod roundrobin:local
Here's the entry I added to the httpd.conf on server 1:
Port 7777
Listen 7777
NameVirtualHost XXX.XXX.XXX.XXX:7777
<VirtualHost orasoaqaapp101.ma.tmpw.net:7777>
ServerName orasoaqa.tmpw.net
ServerAlias orasoaqaapp101.ma.tmpw.net
Port 7777
</VirtualHost>
and on server 2:
Port 7777
Listen 7777
NameVirtualHost XXX.XXX.XXX.XXX:7777
<VirtualHost orasoaqaapp102.ma.tmpw.net:7777>
ServerName orasoaqa.tmpw.net
ServerAlias orasoaqaapp102.ma.tmpw.net
Port 7777
</VirtualHost>
Yes, the port for Application Server and the port on the Load Balancer are exactly the same, I hope this isn't the issue.
Any help would be greatly appreciated.
Thanks!
Message was edited by:
CooperHawkesSeeing that you have an external load balancer available, you really should not be trying software load balancing. Windows NLBS is a software based load balancing and is not really dependent on the physical/virtual hosting of the OS. There are certain gotchas
w.r.t the NLB modes since they depend on network protocols such as arp, propagation of MAC addresses and usage of the MAC in the L2 routing tables of network devices.
You should be taking the help of the cloud service provider as ONLY they would have an understanding of their underlying networking infrastructure such as VLANS. addressing, routing rules and such.
You could also refer to the VMware support forum for KB's such as
http://kb.vmware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalId=1006580
Most importantly, NLBS is a base OS related service and you're more likely to get a response in the Windows Server Forum. In the specific case of BizTalk, the Windows NLB is only used for hosting the out of process services such as those associated with
HTTP/s Receive, orchestration published as schemas, web services (asmx) and/or WCF endpoints.
Regards.
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