DirectAccess Load Balancing Error

Hi
Just seeing if anyone has come across the following error when trying to enable Network Load Balancing in DA 2012.
Error is The length of the prefix used to assign IPv6 addresses to DirectAccess clients connecting over IP-HTTPS should be 59 bits.
Any help would be good
Thanks

Hi,
By default, DirectAccess accept a /64 prefix for the IP-HTTPS range on a single server.
This is the IPv6 range for your clients.
When moving to NLB, you must use a /59 range because each DirectAccess server in the Cluster will receive a /64 range based on the range you defined in the console.
Let's say you implement a 2001::1000:/59, server1 will use 2001::1000:/64 for the clients, server2 will use 2001::1001:/64, etc...
Gerald
Edit: Carriage Returns problem on the forum when posting from my smartphone, will correct that later :-)

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Load balancing error 88: Cannot connect to message server (rc=9)

Hi,
We are facing a problem in the system object.
initially we created a system object with loadbalancing template ,and everything worked fine, but after couple of months we found a error "Load balancing error 88: Cannot connect to message server (rc=9)", so we have created a Dedicated application server object which resolved our issue.
My question is why has this problem occured, and since my client side has lot number of users and we wish to keep the system back to load balancing object.
How can i make my system object work back, what might be the causes?
Thanks
Srivastsa Kondapally

Load balancing only works if the message server is available and the logon group specified exists as well. If one of those changes, then it will break until you get the values set correctly.

Load balancing error 88

Dear all,
We are suddenly facing a problem in the PRD system. There user are getting the below error and if they restart there system than it is solved
Load balancing error 88: Cannot connect to message server (rc=9)
few days back We have upgrade the system from ecc5 to ecc6 and its only
Please suggest why the error is coming and how to solved it
Regards,
Kumar

check the /etc/services file for a proper port setting for the R/3 message server "sapms<sid>" at 36xx. You can try connecting the SAPgw directly to the dispatcher at port 32xx where XX is the instance number. If that connection is good, then it appears to be a logon load balancing configuration problem which uses the message server.
This is usually because it cannot connect to the message server. Please check the dev_ms for any errors. if it is intermittent it is likely to be a network problem ( see note 500235 Network Diagnosis with NIPING.
Check following SApnotes :
#n21559: Examination of SAPGUI problems could be useful.
Please also check the note 882741 for the more info about this problem.
following links will help you :
Logon Load Balancing
http://help.sap.com/saphelp_nw70/helpdata/EN/c4/3a64c1505211d189550000e829fbbd/frameset.htm
Message Server-Based Logon and Load Balancing (Redirection)
http://help.sap.com/saphelp_nw70/helpdata/EN/43/a95d83e27417b9e10000000a1553f6/frameset.htm
Best Regards
Niraj

Enable External Load Balancing error

Hello,
I'm trying to create a DirectAccess farm with 2 external Load balancers (Step 3.1.1 http://technet.microsoft.com/en-us/library/jj134166.aspx)
The first server is configured (Behind a Edge with 2 NICs) and working but when trying to enable External Load Balancing, I immediately receive this error when applying the settings:
Initializing operations before applying configuration
Backing up GPOs...
Updating cluster settings
Retrieving server GPO details...
Opening the server GPO...
Error: The configuration data for this product is corrupt. Contact your support personnel.
Finishing operations after applying configuration
Information: Attempting to roll back the configuration...
The DirectAccess dashboard shows that all services are fine, the DC is available and no errors are logged in the Event Viewer.
I can't find any explanation about a possible corrupted configuration.

Ok... Found the problem... You can't mix Internet IP and LAN IP to create the VIP...

Load Balancing Error

Scenario breakdown :
I have two app servers on hand version 6 (App1) and (App2) and a singular web server - IWS 4.1(Web1).
Solution thus far :
I have chosen to use App2 as the Sync Primary and App1 as the Backup. Created a new cluster "mohrelxcluster" in kregedit and created two entries at location Clusters\mohrelxcluster\SyncServers to include both servers at port 10818(kxs). I have futher setup round robin polling under CCS0\LoadDb. I set the following values under CCS0\LoadDb\ServerWeights:
- ipaddressApp1:10818=50
- ipaddressApp2:10818=50
Finally, created the needed entry under CCS0\ClusterName:
-mohrelxcluster=0
Upon doing so, I started both servers according to order of precedence App2 first then App1.
Log Findings :
As anticipated, according to the kxs log files on both machines shows the broadcasting and processing of information between Sync Primary and Backup. (indicated by the sending to and receiving from <ipaddressinhex:10818>).
In the iasdsync log file on App2(Sync Primary) - App2 has be recognized as Primary and App1 as backup.
Problem :
Upon starting up the ksvradmin interface, the following error is trigged : An error occured while reading in load balancing values server app1. Upon clicking on app1's icon and clicking on the cluster tab, the "mohrelxcluster" cannot be seen.
Many thanks for reviewing. Here's hoping some one can help
Regards
Sathya

HI
Are you sharing single LDAP for these two application servers. If not, you have to create those cluster entries in two regitries (Kregedit). (both syncserver entries and clustername=0 entries)
If you are sharing single LDAP, the entries under SyncServers can be created once but you need to create ,
<clustername>=0 entry under CCSO\ClusterName in two registries.
Hope this helps.
-Srinivas

Load Balancing Error Message

We have two ASA 5550's, ver. 8.0.4. We just recently set them up for Load Balancing. Every time the user logins to Cisco VPN client (5.0.03.0560), we got two email notifications for the below message. We got the error messages every time every user logins to the Cisco VPN client
163>%ASA-3-713128: Connection attempt to VCPIP redirected to VCA peer 192.168.110.18 via load balancing
163>%ASA-3-713902: Group = office, IP = XX.XXX.XXX.XXX, Removing peer from peer table failed, no match!
The user was able to access the internal resources. The two ASA's have the exact configurations. Do you have any suggestions how to fix the problem?
Thanks.
Debra

Error Message - %PIX|ASA-3-713128: Connection attempt to VCPIP redirected to VCA peer IP_address via load balancing
Explanation - This message appears when a connection attempt has been made to the VCPIP and has been redirected to a less loaded peer using load balancing.
Recommended Action - None required.
Error Message - %PIX|ASA-3-713902 descriptive_event_string
Explanation - This system log message could have several possible text strings describing an error. This may be the result of a configuration error either on the headend or remote access client.
Recommended Action - It might be necessary to troubleshoot the configuration to determine the cause of the error. Check the ISAKMP and crypto map configuration on both peers.

Logon Load Balancing error

Hi
I am trying to setup Logon Load Balancing for our ERP system, I have setup the logon groups in TX SMLG, the landscape consists of DB server app1 and app2, I have created a logon group for app1 and logon group for app2, I have then created a new system entry in the SAP Logon Pad under Group/Server Selection, here I have a problem in that when I enter the message server I get a message saying Error: hostname <message server> unknown, however when I enter the ip address for the message server I get the list of logon groups appear, however, I have entered the sapmsS02 3600/tcp setting within the services file, I have also added the ipaddress and the hostname of the message server into the hosts file, but I still cannot get the hostname to work within the message server. When I test the logon I get the error message Logon Balancing Error 88: Cannot connect to message server (rc=9), I have searched the net and most people just suggest entering the details into the services file and host file, also a sap note which suggests issues within the registry for Microsft MSN which I have checked and still have the same issue.
Does anyone have anymore ideas as to what this could be or what to try next?
Thanks for your help
Jay

Dear Jay,
It is not the service that can not be resolved, that is translated into an IP address, but the hostname. It depends on your system and the way in which it does hostname resolution, whether the hosts file will be used at all. So please check with the keyword 'hostname resolution' on how to set this up on your landscape.
Best Regards,
Tim

DirectAccess - Load Balancing Outage

Ok very quick question in terms of failover. I have two load balanced arrarys for directaccess across 2 entry points. What would happen if one of the servers lost access to the internal network but still had access to the external network and was still
able to allow clients to connect. I presume this DA box will still service clients and any connected clients will fail to communicate with the internal network. Is there any way to ensure that is the client is not communication through the server it will try
and reconnect somewhere else?

Hi,
By default F5 offer limited capabilities to validate that DirectAccess Gateway is really available. Your DirectAccess clients are using probes to test network connectivity (DCA/NCA). If clients can reach them (HTTP, HTTPS, PING), we consider that network
connectivity is OK. From the HLB, you can test NLS availability. If it's OK, it proves that you can reach internal network (NLS should be near from end-users as possible). For DirectAccess. You can start with something like that.
Results should be stored in a text file on the DirectAccess Gateway (there also an IIS on it). F5 will be able to check content of the file. If evrything is OK, Gateway is operational. Otherwise, it's not and should be excluded from the endpoints
list.
Script is just a POC and need to be completed. Not sure it's helpfull to have management servers in the results.
BenoitS - Simple by Design http://danstoncloud.com/blogs/simplebydesign/default.aspx

Sun appserver 8 load balancer error

Hi everybody. I'm having some trouble using the load balancer plugin for apache 2 over a linux box. I've followed the install guide, compiled apache2 using the libraries, and everything looks ok, but when starting apache2 with the load balancing module enabled, I get the following error:
[Thu Jan 11 11:03:12 2007] [alert] --------------------Name Trans---------
[Thu Jan 11 11:03:12 2007] [alert] apache process id = 10541 ; URI = /server-status
[Thu Jan 11 11:03:12 2007] [alert] Within apachelbplugin_name_trans()
[Thu Jan 11 11:03:12 2007] [alert] LB Configuration XML file absent or not readableI've read the topic on http://forum.java.sun.com/thread.jspa?threadID=5095982&messageID=9330119
but I still get the problem.
My server is linux RHEL 3, apache version is 2.0.59.
Please any help would be appreciated. Thanks.

You might have simply forgotten to create and/or copy loadbalancer.xml into your apache_webserver_instance/conf/ directory.
You can try to recreate it using 'asadmin create-http-lb-config' command, see:
http://docs.sun.com/source/819-0215/loadb.html#wp1048230

Load balancing error while log on

Hi All,
I am facing some problem while loggin into sap server.
logon balancing error 88 : canot connect to message server(RC = 9).
Can any one please provide me some idea like y its happenign so?
Tnx,
Joe

Hi
refer the SAP note 882741.
that helps you to resolve the issue
Regards
Manohar

Windows 7: Service unknown when using load balancing group

I try to run SAP GUI 7.10 on Windows 7. I use a load balancing group to connect to the server. The direct access to one of our cluster nodes works ok, but when clicking the link to the load balancing group says "load balancing error on logon 88: connection to messaging server not possible (rc=9)" (translated from german).
What is happening here? It works good on Windows XP. Do I have to use another saplogon.ini or something?
Thanks for any help!

Is it ok to deactivate UAC in a company?
That's something your M$ group must decide.
It sounds like a good security feature but as we see here it´s a pain in the @$$ for administrators...
Well - the purpose of it is to disable the ability of malware and virusses spreading around. I consider it as a security breach if a local user is able to simply copy files to the operating systems main directory. A user working with a frontend PC should not have local administrator rights at all; all software requiring this badly designed.
If you use the SAPGUI installation server you can distribute services, saplogon.ini etc. using the installation server provided service without the need of users having to have local administration rights:
Note 512040 - Distributing "services", "saplogon.ini", and similar files.
I just think that "administrators" must learn to do work properly as designed with operating systems without just "copying files around" in system directories (and I don't exclude me in that context).
Markus

Error while selecting Load Balancing in JCO creation

While creating JCO i am facing this error.It is working fine with Single server connection,but when i chose Load balancing i error comes out.Please tell me the solution.
I have read couples of forum mentioned you need to start both Portal and ECC.
For you information my Portal and Java are both on diffrrent Box.
com.sap.mw.jco.JCO$Exception: (102) RFC_ERROR_COMMUNICATION: Connect to message server host failed Connect_PM TYPE=B MSHOST=olameccpdvr GROUP=PUBLIC R3NAME=DVR MSSERV=sapmsDVR PCS=1 LOCATION CPIC (TCP/IP) on local host with Unicode ERROR service 'sapmsDVR' unknown TIME Thu Feb 24 12:19:54 201 RELEASE 701 COMPONENT NI (network interface) VERSION 38 RC -3 MODULE nixxhsl.cpp LINE 776 DETAIL NiHsLGetServNo: service name cached as unknown COUNTER 5

Is your backend system configured correctly in your SLD ?
Go to transaction SMMS on your backend system that your are connecting to. Click on Goto=>Parameters=>Display. Look for "server port" value.
This should give you the TCP/IP port for your message server. It could be 3600 or 3601 (36NN - where NN is the instance number).
In your services file, if you made the entry at the end of the file, press Enter (Return) after your entry.
Try restarting your server after making the above changes.
- Shanti

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,
Sudhir

Thanks, 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.

Error while configuring logon load balancing

Hi,
I am trring to configure logon load balancing in cluster environment.
I had created the logon group using T-Code SMLG and assigned the message server to logon group.
I am using SAP GUI 720.
In the front end system, i had added the host file entry as well as added u201Csapma<SID> 3600/tcpu201D as my CI instance number is 00.
I had created u201Csapmsg.iniu201D and put the entries as below based on sapnote 38119
Message Server
System ID 1>=<Name or IP address of message server 1>
Ex: <SID>=x.x.x.x
     <SID>=x.x.x.x
Message Server Description
<System ID 1>=<Description of message server 1>
Ex: <SID>=CI
But while selecting u201CGroup/Server Selectionu201D I am getting error   u201CError: partner x.x.x.x:sapms<SID> not reached u201C.
On the logon pad I had given the following information:
Description: PRD
System ID: <SID>
Message Server: IP address of CI package
I am not able to find the exact reason of the error and how to proceed to resolve the error.
Regards
Dusmanta

> In the front end system, i had added the host file entry as well as added u201Csapma<SID> 3600/tcpu201D as my CI instance number is 00.
> But while selecting u201CGroup/Server Selectionu201D I am getting error   u201CError: partner x.x.x.x:sapms<SID> not reached u201C.
> On the logon pad I had given the following information:
> Description: PRD
> System ID: <SID>
Did you enter sapma<SID> or sapms<SID> to the services file on the Windows machine?
Markus

Error while load balancing two servers

i have two Solaris servers running 9iAS R2 OC4j.
current patch level is 9.0.2.3
i'm trying to load balance the instances according
to the instructions in this document:
Oracle9i Application Server: mod_oc4j Technical Overview
all i should need to do is run the command:
dcmctl addOPMNLink <IP>:<PORT>
but when i do this i get this error:
ADMN-906026
i could not find any info on this error with searches of:
Google, Google Groups, Oracle MetaLink, Oracle OTN.
ideas? suggestions? anything?
thanks,
.rich

i just tried running a "dcmctl getError", and got this:
ADMN-906026
This Oracle9iAS instance is currently using a database repository to store configuration information. The OPMN link functionality is not supported when a database repository is being used. An Oracle9iAS cluster should be created to associate Oracle9iAS instances when using a repository.
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DirectAccess Load Balancing Error

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