Enqueue Replication Server.

Dear Experts,
If Enqueue Replication server is configured, can you tell me how to check the Lock Table size value, which we set using profile parameter enque/table_size.
If enque server is configured in the same host as CI, it can be checked using
ST02 --> Detail Analysis Menu --> Storage --> Shared Memory Detail --> Enque Table
As it is a Standalone Enqueue Server, I don't know where to check this value.
Thanking you in anticipation.
Best Regards
L Raghunahth

Hello,
I haven't worked on Standalone Enque server, however its worth checking help.sap.com for this.
I did a bit of search found that monitoring can be done via ensmon
Check this link, Monitoring standalone Enqueue Server.
http://help.sap.com/saphelp_nw70/helpdata/EN/bb/84ba9b96e0a94f94ade7c73df93404/frameset.htm
Also,
there might be few interesting things in the Trace files.
http://help.sap.com/saphelp_nw70/helpdata/EN/cb/42f83df31a42fe8e266502cccdd9a0/frameset.htm
Regards,
Siddhesh
Edited by: Siddhesh Ghag on Sep 8, 2008 11:42 AM

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Enqueue Replication Server - Lock Table Size

Note : I think I had posted it wrongly under ABAP Development, hence request moderator to kindly delete this post. Thanks
Dear Experts,
If Enqueue Replication server is configured, can you tell me how to check the Lock Table size value, which we set using profile parameter enque/table_size.
If enque server is configured in the same host as CI, it can be checked using
ST02 --> Detail Analysis Menu --> Storage --> Shared Memory Detail --> Enque Table
As it is a Standalone Enqueue Server, I don't know where to check this value.
Thanking you in anticipation.
Best Regards
L Raghunahth

Hi
Raghunath
Check the following links
http://help.sap.com/saphelp_nw2004s/helpdata/en/37/a2e3ab344411d3acb00000e83539c3/content.htm
http://help.sap.com/saphelp_nw04s/helpdata/en/44/5efc11f3893672e10000000a114a6b/content.htm
Regards
Bhaskar

Enqueue replication server does not terminate after failover

Hi,
We are trying to setup high availability of enqueue server where in we have running enqueue server on node-A and ERS on node-B all the time.
Whenever enqueue is stopped on node-A, it automatically failovers on node-B but after replication of lock table, enqueue does not terminate the ERS running on node-B and as a result our enqueue and ERS both keeps running on the same host (Failover node-B) which should not be the case.
We havenu2019t configured polling in that scenario SAP note-1018968 depicts the same however this is applicable only for version-640 and 700.
Ideally when enqueue server switches to node-B, it should terminate the ERS on the same node after replication and then HA software would take care of its restart on node -A.
We have ERS running of version 701; could anyone please let me know if the same behaviour is common for 701 version as well?
Or there is any additional configuration to be done to make it working.
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Cheers !!!
Ashish

Hi Naveed,
Stopping ERS is suppose to be taken care by SAP only and not the HA software.
Once ERS stops on node -B there would be a fault reported and as a result HA software will restart the ERS on node A.
Please refer to a section of SAP Note 1018968 - 'Enqueue replication server does not terminate after failover'
"Therefore, the cluster software must only organise the restart of the replication server and does not need to do anything for the shutdown."
Another blog about the same:
http://www.symantec.com/connect/blogs/veritas-cluster-server-sap
- After the successful lock table takeover, the Enqueue Replication Server will fault on this node (initiated by SAP). Veritas Cluster Server recognizes this failure and initiates a failover to a remaining node to create SAP Enqueue redundancy again. The Enqueue Replication Server will receive the complete Enqueue table from the Enqueue Server (SCS) and later Enqueue lock updates in a synchronous fashion.
So it is nothing about HA software, it is the SAP which should control ERS on node-B.
Cheers !!!
Ashish

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I installed SAP ECC EHP5 in a Windows Cluster Environment. I followed all the steps in the installation guide. When I execute the following command to check the status of the Enqueue Replication Server:
enqt.exe pf=<profile> 2
The following message appears:
Nr Man UserName Name-- M -
Arg-- -UsVB-----
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Entries in Backup-File...: 0
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Replication is enabled in server, repl. server is connectedReplication is active...
Do I miss any adittional configuration??
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trc file: "dev_eq_trc_7804", trc level: 1, release: "720"
Wed Oct 19 14:02:02 2011
Enqueue Info: enque/use_pfclock2 = FALSE
Enqueue Info: enque/use_pfclock2 = FALSE
Enqueue Info: enque/disable_replication = 0
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Enqueue Info: enque/replication_dll not set
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Any ideas?
Thanks a lot.
Kind Regards

Hi Estaban,
The command is "ensmon" not "enqt". Check the example, below;
ensmon pf=<ERS profile> 2
Best regards,
Orkun Gedik

Enqueue Replication Server Installation

Hi Experts,
I have EP7.0,SP14 (SR3),with IBM AIX,Oracle 10G.
I have installed SCS,DB in High Availability and CI,DI in standalone mode.My Setup has only JAVA Instance and NO ABAP Instance at all.Using HACMP Software for Failover scenario.
I am planning to have Enqueue Replication Server for High Availability solution.
But I could not find any information about the Installation of Enqueue Replication Server in the Master Guide taken for my environment.And the Master DVD doesnt have the Option of Installing Enqueue Replication Server like we had for MSCS-Enqueue replication server installation.
Can any one let me know how to proceed installing Enqueue Replication server?
I have seen this below link but no help:
http://help.sap.com/saphelp_nw04s/helpdata/en/36/67973c3f5aff39e10000000a114084/frameset.htm
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Karthick Eswaran

Hi Karthick,
I have not done this before, but I am planning to do it soon. Did this not help? http://help.sap.com/saphelp_nw04s/helpdata/en/de/cf853f11ed0617e10000000a114084/content.htm
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MSCS H/A enqueue, replication and message servers services

Hi,
I'm looking at the documentation about "Installation of multiple SAP Systems in MSCS: MSSQL Server" but I have a few questions about the SCS and ASCS process.
Are the process setup as generic cluster service? Or are they SAP provided cluster services?
What monitoring is done with the the enqueue, replication and message server services in the cluster?

Mike,
The SAPINST installer will install SCS and ASCS services into MSCS for you. They are installed inside the SAP group in cluster.
The message servers, controlled by either SCS is HA with MSCS. The enqueue services is HA with installation of ERS locally on both nodes. SCS + ERS + ERS provides a triangular HA that means the services is always on and can withstand an cluster failover. The cluster only controls the SCS service. The ERS services are local to each server.
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Enqueue replication service is not starting

Hello Everyone,
We are running SAP Netweaver Portal NW7.2 SP6 on windows 2003 sp2 , microsoft cluster with two app servers.
We just did the upgrade from Nw 7.1 sp6 7.2 SP6 a month ago , and everything was ok :
Then yesterday , I realised the SAPSTARTSRV.exe file on these locations c:\windows\system32 & c:\windows\SAPcluster are old , then I copy this file from the O:\usr\sap\PIQ\SYS\exe\uc\NTAMD64 and remove the old files and replace them with these two files: SAPSTARTSRV.exe & SAPSTARTSRV.EXE.NEW
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If I run it as a command in command line, I don't get any error but everytime I try to start the service , this is the error:
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I try to create different service name with the same properties, but I've got the same error .
When I restart the server , I see below error:
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meanwhile I see this warnimg in Application log , as well:
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This is often caused by services running as a user account, try configuring the services to run in either the LocalService or NetworkService account."
the User "Domain\SAPServiceSID" it's the user we are using to run the SAPSID_XX service.
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Thanks

Hi Sunny,
Thanks for your reply,I just check this SAP note and follow their procedure to uninstall and install the service, but I've got the same error when I try to start the service
Any suggestion?
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We are in the process of setting up DR environment for Sybase ASE using replication server. The primary site has an HA configured.
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Enqueue Replication Server.

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