Re: ARServer group and the ports that require load balancing
I concur - we are running mutliple everything with load balancers at my current customer and we had this same problem before we added the aliases. Interestingly we have several duplicate boxes (dev, cat, etc) and only 1 of them had this problem. I never did figure out why. We are not using port mapper of course. William Rentfrow Principal Consultant, StrataCom Inc. wrentf...@stratacominc.com 715-410-8056 C 715-592-5185 O From: Action Request System discussion list(ARSList) [mailto:arsl...@arslist.org] On Behalf Of Conny Martin Sent: Tuesday, April 07, 2009 3:51 AM To: arslist@ARSLIST.ORG Subject: AW: ARServer group and the ports that require load balancing George, IMHO this is the relevant part of the documentation. Specifying plug-in server aliases (Step 4e) When you specify a common AR System server alias, AR System uses the alias name to connect to the plug-in server. When the AR System server is connecting to its local plug-in server, the connection will not be successful if the server name resolves to anything other than the local server. To route connections successfully in an environment where the server name resolves to a load balancer, you must define plug-in server aliases. The purpose of this step is to designate the local server as the host, not to change the name of the plug-in. To specify plug-in server aliases Add an alias definition for each loaded plug-in to the configuration file, using the plug-in name specified in the plug-in definition. Use the following format, substituting the alias name, plug-in name, host name, and optional port number: Server-Plugin-Alias: [:] The AR System server connects to the plug-in server using host at port when the AR System server communicates with the plug-in. Host must resolve to the local AR System server, and the port number is specified if the plug-in server is listening on a particular port. The following definition is a typical example: Server-Plugin-Alias: ARSYS.ARDBC.REPORT ARSYS.ARDBC.REPORT myserver:2020 For more information about Server-Plugin-Alias, see “ar.conf (ar.cfg)” on page 248. We have a similar setup and solved this problem in a different way. We added the following line to /etc/hosts 127.0.0.1 itsm.telekom.de itsm.telekom.de is configured as common server alias in ar.conf which is used to connect to the plugin server. HTH Kind Regards Conny Von: Action Request System discussion list(ARSList) [mailto:arsl...@arslist.org] Im Auftrag von George Jungle Gesendet: Dienstag, 7. April 2009 03:21 An: arslist@ARSLIST.ORG Betreff: ARServer group and the ports that require load balancing ** Guys, Wondering if you can help me out. We've got an issue with the Plug-in server running within a high available environment of Remedy (2 Midtiers, 2 AR Servers, 2 DB Servers) with each tier separated by a firewall. There is one load balancer in front of the midtier servers and another in front of the AR Servers. So, basically the AR Servers are running within a Server Group. When we try to open up a Remedy form, such as the "Server Information" form, we get an error saying : ARERR [8939] The AR System Plug-In server is not responding. Cannot connect to the system at this time. Contact your AR System Administrator for assistance. : RPC: Timed out Currently the only port that is load balanced is the TCP port that the users access the AR Servers by. Should we also need to load balance the Plug-In port? (9000)? All help is appreciated. Below are some emails I've dug up just from searching the web... Thanks. George Re: RPC: Unable to receive Tony Worthington Mon, 06 Aug 2007 11:27:16 -0700 You probably need to review the BMC documents about plugins behind a VIP or firewall without a portmapper. "Using a Hardware Load Balancer with BMC Remedy Action Request System 7.0" page 9, and others that I can't find at the moment. Here's an example of some lines from one of our ar.conf's (this one from a server group, but relevant since we don't use portmapper either) Plugin-Port: 9000 Register-With-Portmapper: F TCD-Specific-Port: 8639 Server-Plugin-Alias: ARSYS.ARDBC.CONFIGFILE ARSYS.ARDBC.CONFIGFILE ksms562:9000 Server-Plugin-Alias: ARSYS.ARDBC.LDAP ARSYS.ARDBC.LDAP ksms562:9000 Server-Plugin-Alias: ARSYS.ARDBC.PREVIEW ARSYS.ARDBC.PREVIEW ksms562:9000 Server-Plugin-Alias: ARSYS.AREA.LDAP ARSYS.AREA.LDAP ksms562:9000 Server-Plugin-Alias: ARSYS.ARF.WEBSERVICE ARSYS.ARF.WEBSERVICE ksms562:9000 Server-Plugin-Alias: BMC.ARF.CMDBCONSOLE BMC.ARF.CMDBCONSOLE ksms562:9000 Server-Plugin-Alias: REMEDY.ARDBC.APPQUERY REMEDY.ARDBC.APPQUERY ksms562:9000 Server-Plugin-Alias: REMEDY.ARDBC.FLASHBOARD.FORM REMEDY.ARDB
AW: ARServer group and the ports that require load balancing
George, IMHO this is the relevant part of the documentation. Specifying plug-in server aliases (Step 4e) When you specify a common AR System server alias, AR System uses the alias name to connect to the plug-in server. When the AR System server is connecting to its local plug-in server, the connection will not be successful if the server name resolves to anything other than the local server. To route connections successfully in an environment where the server name resolves to a load balancer, you must define plug-in server aliases. The purpose of this step is to designate the local server as the host, not to change the name of the plug-in. To specify plug-in server aliases Add an alias definition for each loaded plug-in to the configuration file, using the plug-in name specified in the plug-in definition. Use the following format, substituting the alias name, plug-in name, host name, and optional port number: Server-Plugin-Alias: [:] The AR System server connects to the plug-in server using host at port when the AR System server communicates with the plug-in. Host must resolve to the local AR System server, and the port number is specified if the plug-in server is listening on a particular port. The following definition is a typical example: Server-Plugin-Alias: ARSYS.ARDBC.REPORT ARSYS.ARDBC.REPORT myserver:2020 For more information about Server-Plugin-Alias, see “ar.conf (ar.cfg)” on page 248. We have a similar setup and solved this problem in a different way. We added the following line to /etc/hosts 127.0.0.1 itsm.telekom.de itsm.telekom.de is configured as common server alias in ar.conf which is used to connect to the plugin server. HTH Kind Regards Conny Von: Action Request System discussion list(ARSList) [mailto:arsl...@arslist.org] Im Auftrag von George Jungle Gesendet: Dienstag, 7. April 2009 03:21 An: arslist@ARSLIST.ORG Betreff: ARServer group and the ports that require load balancing ** Guys, Wondering if you can help me out. We've got an issue with the Plug-in server running within a high available environment of Remedy (2 Midtiers, 2 AR Servers, 2 DB Servers) with each tier separated by a firewall. There is one load balancer in front of the midtier servers and another in front of the AR Servers. So, basically the AR Servers are running within a Server Group. When we try to open up a Remedy form, such as the "Server Information" form, we get an error saying : ARERR [8939] The AR System Plug-In server is not responding. Cannot connect to the system at this time. Contact your AR System Administrator for assistance. : RPC: Timed out Currently the only port that is load balanced is the TCP port that the users access the AR Servers by. Should we also need to load balance the Plug-In port? (9000)? All help is appreciated. Below are some emails I've dug up just from searching the web... Thanks. George Re: RPC: Unable to receive Tony Worthington Mon, 06 Aug 2007 11:27:16 -0700 You probably need to review the BMC documents about plugins behind a VIP or firewall without a portmapper. "Using a Hardware Load Balancer with BMC Remedy Action Request System 7.0" page 9, and others that I can't find at the moment. Here's an example of some lines from one of our ar.conf's (this one from a server group, but relevant since we don't use portmapper either) Plugin-Port: 9000 Register-With-Portmapper: F TCD-Specific-Port: 8639 Server-Plugin-Alias: ARSYS.ARDBC.CONFIGFILE ARSYS.ARDBC.CONFIGFILE ksms562:9000 Server-Plugin-Alias: ARSYS.ARDBC.LDAP ARSYS.ARDBC.LDAP ksms562:9000 Server-Plugin-Alias: ARSYS.ARDBC.PREVIEW ARSYS.ARDBC.PREVIEW ksms562:9000 Server-Plugin-Alias: ARSYS.AREA.LDAP ARSYS.AREA.LDAP ksms562:9000 Server-Plugin-Alias: ARSYS.ARF.WEBSERVICE ARSYS.ARF.WEBSERVICE ksms562:9000 Server-Plugin-Alias: BMC.ARF.CMDBCONSOLE BMC.ARF.CMDBCONSOLE ksms562:9000 Server-Plugin-Alias: REMEDY.ARDBC.APPQUERY REMEDY.ARDBC.APPQUERY ksms562:9000 Server-Plugin-Alias: REMEDY.ARDBC.FLASHBOARD.FORM REMEDY.ARDBC.FLASHBOARD.FORM ksms562:9000 Server-Plugin-Alias: REMEDY.ARDBC.SERVER.ADMINISTRATION REMEDY.ARDBC.SERVER.ADMINISTRATION ksms562:9000 Server-Plugin-Alias: REMEDY.ARF.CAI REMEDY.ARF.CAI ksms562:9000 Server-Plugin-Alias: REMEDY.ARF.CBDATA REMEDY.ARF.CBDATA ksms562:9000 Server-Plugin-Alias: REMEDY.ARF.OMFOBJIE REMEDY.ARF.OMFOBJIE ksms562:9000 Server-Plugin-Alias: REMEDY.ARF.SLASETUP REMEDY.ARF.SLASETUP ksms562:9000 You may not need the alias lines, but you certainly need the Plugin-Port. hth, tony -- Tony Worthington [EMAIL PROTECTED] 262-703-5911 Mike Chepaykin <[EMAIL PROTECTED]> Sent by: "Action Request System discussion list(ARSList)" 08/06/2007 10:12 AM Please respond to arslist@ARSLIST.ORG To arslist@ARSLIST.
ARServer group and the ports that require load balancing
Guys, Wondering if you can help me out. We've got an issue with the Plug-in server running within a high available environment of Remedy (2 Midtiers, 2 AR Servers, 2 DB Servers) with each tier separated by a firewall. There is one load balancer in front of the midtier servers and another in front of the AR Servers. So, basically the AR Servers are running within a Server Group. When we try to open up a Remedy form, such as the "Server Information" form, we get an error saying : ARERR [8939] The AR System Plug-In server is not responding. Cannot connect to the system at this time. Contact your AR System Administrator for assistance. : RPC: Timed out Currently the only port that is load balanced is the TCP port that the users access the AR Servers by. Should we also need to load balance the Plug-In port? (9000)? All help is appreciated. Below are some emails I've dug up just from searching the web... Thanks. George Re: RPC: Unable to receive Tony Worthington Mon, 06 Aug 2007 11:27:16 -0700 You probably need to review the BMC documents about plugins behind a VIP or firewall without a portmapper. "Using a Hardware Load Balancer with BMC Remedy Action Request System 7.0" page 9, and others that I can't find at the moment. Here's an example of some lines from one of our ar.conf's (this one from a server group, but relevant since we don't use portmapper either) Plugin-Port: 9000 Register-With-Portmapper: F TCD-Specific-Port: 8639 Server-Plugin-Alias: ARSYS.ARDBC.CONFIGFILE ARSYS.ARDBC.CONFIGFILE ksms562:9000 Server-Plugin-Alias: ARSYS.ARDBC.LDAP ARSYS.ARDBC.LDAP ksms562:9000 Server-Plugin-Alias: ARSYS.ARDBC.PREVIEW ARSYS.ARDBC.PREVIEW ksms562:9000 Server-Plugin-Alias: ARSYS.AREA.LDAP ARSYS.AREA.LDAP ksms562:9000 Server-Plugin-Alias: ARSYS.ARF.WEBSERVICE ARSYS.ARF.WEBSERVICE ksms562:9000 Server-Plugin-Alias: BMC.ARF.CMDBCONSOLE BMC.ARF.CMDBCONSOLE ksms562:9000 Server-Plugin-Alias: REMEDY.ARDBC.APPQUERY REMEDY.ARDBC.APPQUERY ksms562:9000 Server-Plugin-Alias: REMEDY.ARDBC.FLASHBOARD.FORM REMEDY.ARDBC.FLASHBOARD.FORM ksms562:9000 Server-Plugin-Alias: REMEDY.ARDBC.SERVER.ADMINISTRATION REMEDY.ARDBC.SERVER.ADMINISTRATION ksms562:9000 Server-Plugin-Alias: REMEDY.ARF.CAI REMEDY.ARF.CAI ksms562:9000 Server-Plugin-Alias: REMEDY.ARF.CBDATA REMEDY.ARF.CBDATA ksms562:9000 Server-Plugin-Alias: REMEDY.ARF.OMFOBJIE REMEDY.ARF.OMFOBJIE ksms562:9000 Server-Plugin-Alias: REMEDY.ARF.SLASETUP REMEDY.ARF.SLASETUP ksms562:9000 You may not need the alias lines, but you certainly need the Plugin-Port. hth, tony -- Tony Worthington [EMAIL PROTECTED] 262-703-5911 Mike Chepaykin <[EMAIL PROTECTED]> Sent by: "Action Request System discussion list(ARSList)" 08/06/2007 10:12 AM Please respond to arslist@ARSLIST.ORG To arslist@ARSLIST.ORG cc Subject RPC: Unable to receive Hello listers. ARERR [8760] Cannot establish a network connection to the AR System Plug-In server : bmcstage : RPC: Rpcbind failure - RPC: Unable to receive This is what I got in RUT when I move my ARS server behind the firewall, uncheck "Register with portmapper", assign static TCP port and shutdown remedy portmapper service. And restart my windows box of course - a shut in a head 8). This error appears only in Problem Management Console on window open. Other consoles - incident, asset, cmdb - appear without any errors. No errors in arerror, armonitor, arplugin logs and no errors on client side logs too. When I change environment back (no firewall restrictions at all) and move to portmapper - everything is fine again. Why (and which?) plugin try to register himself in portmapper? Or maybe the cause is something else? windows2003, mssql2000, ars7.0.1p2, ITSM 7.0.2 -- Mike Chepaykin ___ UNSUBSCRIBE or access ARSlist Archives at www.arslist.org Platinum Sponsor: RMI Solutions ARSlist: "Where the Answers Are"
