ITS 6.20 - Multiple AGATES

Hi,
Could someone please send me a sample copy of 'ITSRegistryWgate.xml which has multiple Agates.
I have setup 2 Agate servers and a seperate Wgate server.
I did modify the Wgate.xml to include both Agates & Wgate.
When I check the Loadbalance via the ADM, it displays both
the Agates, but the 1 Agate has the status 'polled'.
(obviously connection problems)
I have check the etc/services file and it does contain
the correct ports on both the Agate servers.
Am i missing something in my Wgate.xml file ??
Do i also need to set the Multiprocess to 'yes' to cater for the second Agate ??
Many thanks and appreciate the help !!!
Morgan

Hello Morgan,
Please check the wgate traces for any problems:
Most common problems are:
DNS could not be resolved
(Agate MM) Ports on wgate are incorrect
Port mix-up
>> have check the etc/services file and it does contain the correct ports on both the Agate servers.
Sure you did not mix up AGate and MManager port?
>> Do i also need to set the Multiprocess to 'yes' to cater for the second Agate ??
NO, this is when you use "multiple process" Agates i.e. loadbalancing on process-level at the agate side.
Did you run a couple of sessions (with renewal of the browser) before looking at the "wgate-status"?
There is a trick to test if wgate loadbalancing is working in general; just semi LB on the same agate.
Just use the agate hostname as logical name and as an IP address. Afterwards you can replace the correct values (host, ports) for the other (foreign) agate.
Here's a sample:
<key name="Agates">
-<key name="Agate1">
--<value name="Host" type="text">P141087</value>
--<value name="PortAGate" type="text">sapavw00_IT1</value>
--<value name="PortMManager" type="text">sapavwmm_IT1</value>
--<value name="Type" type="text">1</value>
--<value name="SncNameAGate" type="text" />
--<value name="SncNameWGate" type="text" />
--<value name="MultiProcess" type="text">no</value>
--<value name="Available" type="text">yes</value>
-</key>
-<key name="Agate2">
--<value name="Host" type="text">194.0.0.11</value>
--<value name="PortAGate" type="text">3900</value>
--<value name="PortMManager" type="text">3910</value>
--<value name="Type" type="text">1</value>
--<value name="SncNameAGate" type="text" />
--<value name="SncNameWGate" type="text" />
--<value name="MultiProcess" type="text">no</value>
--<value name="Available" type="text">yes</value>
-</key>
</key>
Regards,
Fekke

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ITS 620 Multiple Agate

I have installed ITS Version 6.20 Patch 16 on Windows 2003 as a dual host installation therefore have the Wgate instance on 1 server and the Agate server on a separate server. For load balancing and redundancy purposes I would like to create another Agate instance on a separate server. I know that this functionality can be achieved however not sure how it is configured as I can not find anything within the ITS 620 Installation guide or the Trouble shooting guide, it just mentions that this functionality can be achieved.
From what I have read (Oss notes 352136, 740404, 375065, 505241) and other related information I believe that I just complete the Agate installation on the new server, however keep the same Instance and Virtual ITS Instance name, then ensure that my ITS service file entries for the system are the same as the Wgate. Is there any additional configuration which is required on the Agate server?
My point of confusion is when initially installing the Wgate, it asks if you would like to have multiple Agates, however only asks once for the Agate server. As I now have 2 Agate instance on different hosts where do I put the information for my second Agate server? I have read notes however these are specific to ITS 4.6D and it suggests that I have to edit the wgate.conf file, on ITS version 6.20 this file just points to C:\Program Files\SAP\ITS\6.20\config, within the config directory I have several xml files. Am I to edit the ItsRegistryWGATE.xml on the Wgate server and add the additional agate? Currently I have :-
- <key name="Agates">
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<value name="Host" type="text">SERVER.NAME</value>
<value name="PortAGate" type="text">4044</value>
<value name="PortMManager" type="text">4054</value>
<value name="Type" type="text">1</value>
<value name="SncNameAGate" type="text" />
<value name="SncNameWGate" type="text" />
<value name="MultiProcess" type="text">yes</value>
<value name="Available" type="text">yes</value>
</key>
Do I copy the above and create Agate2 and change the hostname?
Any information would be helpful. Once I have this working I would like to load balance the Wgates, I understand that you use Windows loadbalancing for this, however any additional information would be helpful.
Thanks in advance.

Hi Fekke
Thanks for your help, this seems to resolve my issue, however I have a related problem which I wonder if you can shed some light.
I have server A which initially had 2 ITS single host installations. The ITS instance was for my R3 connection, the second is my Admin client for ITS, so the Agate and Wgate are on the same server. On server B I have created a new Agate instance with the help of your advise. This is currently only for UAT, in Production the setup will be different, however I have a small problem now. Both Agates are running on server A and Server B, however when I go to my URL for ITS admin
I can see that I have Agate loadbalancing and I can see that I have 2 active Agate instances, 1 one server A and one on server B. I can see all my configuration via ITS admin and stats, however when I select to view the config, stats for server B I get under server b (Go to Native Adm), when I click the link I get "The page can not be displayed HTTP 500 (I can see on the URL I get:-
http://servera:85/scripts/wgate/admin/!?~agate_routing=serverb
I have found Oss note 584695, but this problem is only for ITS 610 and resolved in patch 23, I am on ITS 620 Patch 16.
Do you have any ideas ?
Thanks in advance.

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Despite the recommendation of note 731679, I´m looking for some documentation or tips related to an ITS configuration to support two different SAP systems.
The note refers to "setting the relevant parameters in the service files or by using URL parameters" but I didn´t found a clear recipe.
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Rodrigo

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WHat is the difference between having:
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Difference is in the kind of scaling/loadbalancing!
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Hi,
Kindly advise on the queries to add a additional AGate node.
We have 4GB of Physical Memory and our process is not completely utilised but the AGate stops responding when the MaxThreads goes to 0. So we have analysed and decided to add a additional AGate process.
Any thoughts on this decision?
AFAIK to add a additional AGate process we have to set the property MaxAGates to the required number of process in our case 2 then change the multiprocess property in ITSRegistryWGATE.xml then restart the ITS system.
At this point am I missing something is this the correct process?
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Hello Vijith,
This is an example of the values needed in the ITSRegistryWGATE.xml file for multiple AGATE's:
<key name="Agates">
      <key name="Agate1">
       <value name="Host" type="text">hostsname1.xyz.com</value>
       <value name="PortAGate" type="text">port#</value>
       <value name="PortMManager" type="text">port#</value>
       <value name="Type" type="text">1</value>
       <value name="SncNameAGate" type="text"/>
       <value name="SncNameWGate" type="text"/>
       <value name="MultiProcess" type="text">no</value>
       <value name="Available" type="text">yes</value>
      </key>
      <key name="Agate2">
       <value name="Host" type="text">hostname2.xyz.com</value>
       <value name="PortAGate" type="text">port#</value>
       <value name="PortMManager" type="text">port#</value>
       <value name="Type" type="text">1</value>
       <value name="SncNameAGate" type="text"/>
       <value name="SncNameWGate" type="text"/>
       <value name="MultiProcess" type="text">no</value>
       <value name="Available" type="text">yes</value>
      </key>
      <key name="Agate3">
       <value name="Host" type="text">hostname3.xyz.com</value>
       <value name="PortAGate" type="text">port#</value>
       <value name="PortMManager" type="text">port#</value>
       <value name="Type" type="text">1</value>
       <value name="SncNameAGate" type="text"/>
       <value name="SncNameWGate" type="text"/>
       <value name="MultiProcess" type="text">no</value>
       <value name="Available" type="text">yes</value>
      </key>
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       <value name="PortAGate" type="text">port#</value>
       <value name="PortMManager" type="text">port#</value>
       <value name="Type" type="text">1</value>
       <value name="SncNameAGate" type="text"/>
       <value name="SncNameWGate" type="text"/>
       <value name="MultiProcess" type="text">no</value>
       <value name="Available" type="text">yes</value>
      </key>
     </key>
Make sure you have each Agate listed in the servers Hosts file. The Services files will need the values sapawmm_<SID> port#/tcp, sapavw00_<SID> port#/tcp, and Message Server parameter sapdp XX port#/tcp. These need to be insync with every Agate. Especially if you have a dual-host landscape.
sapavwmm_SID     port#/tcp                   # Production Port
sapavw00_SID     port#/tcp                   # Production Port
sapavw00_ADM     port#/tcp                   # Admin port
sapavwmm_ADM     port#/tcp
sapdp XX                   port#/tcp                                       #message server
Once you have made any configuartion changes it is always best to restart the services specific for ITS. You should see the new AGATE in the Admin Tool with these settings. Don't forget to reward points.
Regards,
D

ITS infrastructure

Hi,
I am putting together an ITS infrastructure design and I have a couple of questions that I am hoping someone can assist me with:
1. I am putting AGATE and WGATE on the same server, but I will have multiple AGATE/WGATE servers for resiliency. My question is can I load balance the AGATE components between the different servers? i.e. WGATE on box A can use AGATE on box B or A and WGATE on box B can use AGATE on box B or A. Is this possible? And does it make any sense to do this? I am thinking that if one box is less loaded somehow it could offload handle the AGATE processing from the other box if needed?
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- Instance XXX
-- Agate1 Host1
-- Agate2 Host2
-- Agate3 Host3
Remember to check the "services" files at the original hosts for the portnumbers of the Agate and Mapping Manager.
there is some information on agate sizing in http://help.sap.com/saphelp_47x200/helpdata/en/82/4d5739d335a85ee10000000a114084/frameset.htm
maintenance see: http://service.sap.com/~form/sapnet?_SHORTKEY=01200572170000061091
Regards,
Fekke

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Floola Mac & Windows
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Music Rescue Mac & Windows (iPhone and iPod Touch compatible)
iGadget Mac & Windows (iPhone and iPod Touch compatible)
iRepo Mac & Windows (iPhone and iPod Touch compatible)
iPod Access Mac & Windows (iPhone and iPod Touch compatible)
TouchCopy Mac & Windows (iPhone and iPod Touch compatible)
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