Load balance business connectors

Hi experts,
We have 4 business connectors 4.7 version running on 5 different servers, Currently we are facing the problem of frequent restart on all of them. I would like to know is there any way we can load balance so that new Idoc processing request will go to the least used server. Also would like to know if increase in number of IDoc in flow will affect the performance of the business connectors.
Regards,
Suresh

Hi,
Please check the below from this article.
https://social.technet.microsoft.com/Forums/exchange/en-US/749e64d6-9924-4150-bac0-ce4174896fb6/relaying-using-load-balancer?forum=exchange2010
For those who still monitor this thread,
The issue here is that the HLB is not configured to Use Source IP. In the Netscaler world, this is configured on a device or load balancer level and is referred to as USIP. (Use Source IP) If Source IP is not configured, the HLB will pass
the traffic to Exchange using the HLB's interface. You can configure this IP as an allowed IP address on your relay connector, but this is a big security risk as previously stated because all traffic that is routed through the HLB has rights to relay.
Concerning the network guy in PeterN22's post, open connections can be a problem and can cause port saturation if you are using an (*) as a wildcard on your RPC load balancing service. I have had much better luck, across all my load balanced deployments
(Citrix, Kemp, Cisco, etc.), when I use static port assignments on all load balanced services. For example:
SMTP - 25
RPC - 59532
OAB - 59533
HTTPS - 443
POP - 110
etc.
Exchange 2013 load balancing is now stateless and doesn't rely on Source IP, but this same issue with SMTP will occur if Source IP is not used. I know this is a recap of some of the other posts, but hopefully the additional information is helpful for
someone who may come across this post.

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========================= CPUs =========================
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========================= IO Cards =========================
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Last edited by frefyx (2009-11-25 20:45:44)

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G

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What is load balancing in sap business objects.

Hi friends.
Any one give me correct answer..

Hi,
it depends if you are talking about clustering the processing tiers (& using server groups) to achieve load-balancing, or if you mean using a load balancer in front of the web-tier (typically, Apache Tomcat) ? Also. it could be a software or hardware load balancer.
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regards,
H

Business Objects XI 3.1 load balancing (is not balancing).

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Hi All
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1)   SAP Business Connector 4.7 (BC)
2)   webMethods Integration Server
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Thanks
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SAP Business Connector on Windows XP

I've been trying to get the SAP Business Connector 4.7 to work on Windows XP professional but haven't been very successful. The business connector seems to install okay, but when I try to start the business connector through the server.bat file it generates the following errors:
(loglevel = 4)
Loading WmPartners package
00000E [B2BSERV.0026.0002] Failure while loading service wm.PartnerMgr.gateway.transport.EmailTransport:startup: [B2BSERV.0026.9106] No method startup in class wm.PartnerMgr.gateway.transport.EmailTransport
00000F [B2BSERV.0026.0002] Failure while loading service wm.PartnerMgr.xtn.admin:saveMessage: [B2BSERV.0026.9106] No method saveMessage in class wm.PartnerMgr.xtn.admin
000010 [B2BSERV.0026.0002] Failure while loading service wm.PartnerMgr.xtn.admin:view: [B2BSERV.0026.9106] No method view in class wm.PartnerMgr.xtn.admin
000011 [B2BSERV.0026.0002] Failure while loading service wm.PartnerMgr.gateway.admin:saveRoutingRule: [B2BSERV.0026.9106] No method saveRoutingRule in class wm.PartnerMgr.gateway.admin
000012 [B2BSERV.0026.0002] Failure while loading service wm.PartnerMgr.gateway.admin:convertWildCards: [B2BSERV.0026.9106] No method convertWildCards in class wm.PartnerMgr.gateway.admin
000013 [B2BSERV.0026.0002] Failure while loading service wm.PartnerMgr.gateway.transport.B2B:startup: [B2BSERV.0026.9106] No method startup in class wm.PartnerMgr.gateway.transport.B2B
000014 [B2BSERV.0026.0002] Failure while loading service wm.PartnerMgr.xtn.admin:editStore: [B2BSERV.0026.9106] No method editStore in class wm.PartnerMgr.xtn.admin
000015 [B2BSERV.0026.0002] Failure while loading service wm.PartnerMgr.gateway.transport.FTPTransport:startup: [B2BSERV.0026.9106] No method startup in class wm.PartnerMgr.gateway.transport.FTPTransport
000016 [B2BSERV.0026.0002] Failure while loading service wm.PartnerMgr.xtn.admin:invokeViewService: [B2BSERV.0026.9106] No method invokeViewService in class wm.PartnerMgr.xtn.admin
000017 [B2BSERV.0026.0002] Failure while loading service wm.PartnerMgr.xtn.admin:viewMsgContent: [B2BSERV.0026.9106] No method viewMsgContent in class wm.PartnerMgr.xtn.admin
000018 [B2BSERV.0026.0002] Failure while loading service wm.PartnerMgr.gateway.admin:updateTransports: [B2BSERV.0026.9106] No method updateTransports in class wm.PartnerMgr.gateway.admin
000019 [B2BSERV.0026.0002] Failure while loading service wm.PartnerMgr.gateway.admin:invokeService: [B2BSERV.0026.9106] No method invokeService in class wm.PartnerMgr.gateway.admin
00001A [B2BSERV.0026.0002] Failure while loading service wm.PartnerMgr.xtn.admin:log: [B2BSERV.0026.9106] No method log in class wm.PartnerMgr.xtn.admin
00001B [B2BSERV.0028.0005] Loading SAP package
00001C [B2BSERV.0026.0002] Failure while loading service wm.PartnerMgr.gateway.transport.RFC:startup: [B2BSERV.0026.9106] No method startup in class wm.PartnerMgr.gateway.transport.RFC
00001D [B2BSERV.0026.0002] Failure while loading service wm.PartnerMgr.gateway.transport.BAPI:startup: [B2BSERV.0026.9106] No method startup in class wm.PartnerMgr.gateway.transport.BAPI
00001E [B2BSERV.0026.0002] Failure while loading service wm.PartnerMgr.gateway.transport.XML:startup: [B2BSERV.0026.9106] No method startup in class wm.PartnerMgr.gateway.transport.XML
00001F [B2BSERV.0026.0002] Failure while loading service sap.bapi:encodeToFile: [B2BSERV.0026.9106] No method encodeToFile in class com.wm.pkg.sap.bapi.BusinessDocumentCoder
000020 [B2BSERV.0026.0002] Failure while loading service sap.bapi.Mapper:bapi2rfc: [B2BSERV.0026.9104] Missing class sap.bapi.Mapper
000021 [B2BSERV.0026.0002] Failure while loading service sap.bapi.Mapper:rfc2bapi: [B2BSERV.0026.9104] Missing class sap.bapi.Mapper
000022 [B2BSERV.0026.0002] Failure while loading service sap.bapi.Mapper:bapi2ale: [B2BSERV.0026.9104] Missing class sap.bapi.Mapper
000023 [B2BSERV.0026.0002] Failure while loading service sap.admin:listGatewayServices: [B2BSERV.0026.9106] No method listGatewayServices in class sap.admin
000024 [B2BSERV.0026.0002] Failure while loading service sap.bapi.Mapper:ale2bapi: [B2BSERV.0026.9104] Missing class sap.bapi.Mapper
000025 [B2BSERV.0026.0002] Failure while loading service wm.PartnerMgr.gateway.transport.ALE:startup: [B2BSERV.0026.9106] No method startup in class wm.PartnerMgr.gateway.transport.ALE
000026 [B2BSERV.0028.0005] Loading WmSamples package
000027 [B2BSERV.0028.0026] Warning: Deprecated service type (webtap) in service sample.webtap:logApp in package WmSamples
000028 [B2BSERV.0028.0005] Loading WmDB package
These errors don't stop the business connector from starting up, but the errors are not normal behaviour. When I try to start the business connector through a Windows service then I get the message "Could not start the SAP Business Connector Service on Local Computer. Error 126: The specified module could not be found".
I have a working business connector installation on a Windows 2000 server, and when I checked the error log of that installation I noticed that it had logged the same errors about the 'WmPartners' package. It on the other hand didn't have any problems loading the 'SAP' package.
I tried installing the business connector on two different systems with identical results. Has anybody been able to get the business connector to work on Windows XP?

HI,
I have no idea clearly about BC.. but ..
See the following links.. may be helpfull..
Business connector
https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/a8609b90-0201-0010-c6bc-a41b611c6dac
SAP Business Connector on Windows XP
https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/92e5bd90-0201-0010-b799-dfdc27f3100a
https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/a8424011-0d01-0010-e19d-e5bd8ca52244
If usefull .. points rewarded..
Regards
Chilla..

SAP GLM Print Request - Load Balancing of WWI server

Hi GLM Experts,
I am using new GLM + module that generates labels based on Print Requests. I am unable to understand how I can load balance the WWI services when there are multiple label printing requests.
In GLM + we associate a WWI to a Print Station and which can then be associated with a printer. So in the configuration we are tying up a printer a WWI.
Also during label printing, if the scenario uses print request module, then the use need to select a print station and printer. What happens if the WWI related to the print station is down?
For example I have two services in WWI server GENPC1 and GENPC2. I created WWII and WWI2 as two print stations. I will associate my printer PRNWWI to both the print stations WWI1 and WWI2.
During label printing if the user picks and WWI1 and Printer PDNWWI and if the GENPC1 WWI server assocaited with print status WWI1 is busy and down I want WWI GENPC2 to generate the label?
How to setup the above load balancing or fall back? Please let me know.
Thanks
Pugal

Dear Pugal
we are not using GLM + and I am not sure about the technqiue used there to handle load balancing. Regarding general WWI setup I assume you know this Note: EH&amp;S: Availability and performance of WWI and Expert servers
On the top there is a further SAP Note abvailable which might be of interest. This is referenced here:
http://de.scribd.com/doc/191576739/011000358700000861002013-e
May be check OSS note: 1958655; OSS Note 1155294 is more related to normal WWI stuff; but may be check it as well. May be 1934253 might help better
May be this might help.
C.B.
PS: may be check as well: consolut - EHS_MD_140_01 - EH&amp;S-Management-Server einrichten
The load balancing of synchron WWi servers is donein the "RFC" layer, therefore you have no inffluence here, for asynchron WWI servers you can do a lot to manage the WWI load balancing by using "exits" etc.

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.
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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
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cmd.CommandText = "select * from PERSON";
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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
Victoria

Here 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

Load balance business connectors

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