Does Traffic Manager provide database load balancing for MySQL?

I need two VMs to implement MySQL Cluster in Windows Azure. VMs allow configure endpoint load balance set for Mysql, but I did not find tcp protocol in Traffic Manager. Does it provide this service for database
load balancing?

Hi,
Traffic Manager works on the DNS level and routes traffic between public endpoints that sit behind a common DNS name. So you can't use this for your scenario.
However, You can implement
load balancing for VMs in another way.
Edward

Similar Messages

Traffic Manager versus Azure Load Balancer

Hi All,
We have an MVC5 app which we are planning to host either as an Azure Web App or Azure Web Role. The queries that we have is pertaining to load balancing of the same as follows:
1. When we spawn multiple instances of Web Apps or WebRoles, does Azure Load Balancer automatically kick in?
2. If the above case is true, then when is the need for the Traffic Manager? Is it used when instances are spanning across multiple regions?
3. Will Azure load balancer suffice my requirement if I am hosting my app only in a single region?
Regards, Saurabh

Hi Saurabh,
No, you would have to manually configure an Azure Load Balanced Set for Load Balancing purposes. You could refer this link for details on how to configure a Load Balanced Set:
https://msdn.microsoft.com/library/azure/dn655055.aspx
Yes, Traffic Manager allows you to control distribution of traffic to Cloud Services, Websites across different Data Centres.
If you are hosting your app within a Cloud Service, Azure Load Balancer should suffice for your requirement.
You could refer the following link for details on various load balancing methods for Azure Infrastructure Services:
http://azure.microsoft.com/en-in/documentation/articles/virtual-machines-load-balance/
Regards,
Malar.

What is the alternative of F5 BIG-IP LTM Load Balancer for OEM 12c

We want to implement service load balance, however oracle recommended
F5 BIG-IP LTM Load Balancer for OEM 12c
How much it is cost? and is there any free alternative we can use which supported by Oracle?
Thanks

Apart from F5, Cisco is another SLB vendor. I am not sure about any free alternative though.
Note that regardless what SLB that you pick, it should meet the requirements documented in section 29.3.2.2 of the EM12c Release 3 Administrator's Guide:
The SLB must provide support for multiple virtual server ports. Enterprise Manager typically requires that up to 4 ports are configured on the SLB (Secure Upload, Agent Registration, Secure Console, Unsecure Console)
Support for persistence. HTTP and HTTPS traffic between the browser and the OMS requires persistence
Support for application monitoring. The SLB must be capable of monitoring the health of the OMSs and detecting failures, so that requests will not be routed to OMSs that are not availa
Regards,
- Loc

How does one manage these new render setting for previews?

I placed 4 HD clips from a nested into a sequence 5800 x 768 to mimic 4 side by side monitors for a multi channel video. Each clip cut from the sequence are at 1280x720 all sitting side by side. However when I rendered the previews, they came look all squished. However when I exported the frame it looks fine in Photoshop. (I changed the uploaded image to what it looks like in Premiere in Photoshop to demonstrate the appearance in Premiere.)
I imagine that the distortion has to do with the sequence render setting which for some reason comes out to 1918 x 253...or the pixel aspect ratio? How does one manage these new render setting for previews so it looks normal in the monitor?


Either way, I thought that this format would be a great way to view on the monitor 4 channels at the same time. I may need to place them on a “normal” 1440 x 1080 sequence in a line, bringing them down to 25% scale to make it work in the end. I did just try that. I think it will work...but when I imported and nested the old file, the scratch disks changed from the original set up on a D drive back to the main hard drive so I had to change it agin. Otherwise it works fine...so I’ll go with this for now
These are the instructions I was given.I attched a screen save of the AE file they asked me to use (They must be on vacation, because I have not been able to get hold of them). I don't know After Effects very well:
“As you begin creating or adapting work for e4c, you may find an After Effects template developed for this system to be helpful. Attached you'll see a zipped file with two AE templates. There is some detailed information (below) from the artist that developed these for us. In addition, a few bits of information that might help you along are:
·        The "Watchout" playback system can support WMV or a QuickTime files . We like .mov files with H.264 codec best!
·        The end resolution of the four screens is 5120 x 720 pixels (1280x720 each).
·        If works are four-channel, please provide a separate audio (aiff) file so it doesn't slow any one video down.”
Thanks for your help!

Installing 2 Application server and 1 DB server and load balancing for 11i

Hi,
I need info on how to install and configure load balancing for 11.5.8 on Win2000. The scenario: 1 db server DB, 2 apps/web/forms servers AP1 and AP2. Using rapid install you can only specify one db server A and one form server in multi node installations, right? How do I install the form server on AP2? Can I use the same config.txt? The computer name for AP2 is different.
Thanks & Regards,
Jagal

I have the very same issue. We want to install 4 web/form servers on a hardware load-balancer and the issue is we can only specify one forms server.
Does anyone know the secret bullet here?
Thanks
John

Setting up Load Balancing for 11i for Intranet & Internet Access

Our current environment for 11i (11.5.5) is accessed only internally (via Intranet). We need to allow outside access (via Internet) also for self-service apps (ie. HR). Oracle Support/Metalink has stated that Load Balancing (note 148155.1) is the only supported method to have multiple (Apps Servers) systems access a single database. Could I get feedback from anyone who has implemented Load Balancing for 11i? Additionally if someone has implemented this for both intranet and internet access how has your company setup? Do the secondary server(s) from the Load Balancing note reside in the DMZ? And thus the primary app server and database reside inside the firewall? Thanks....

Hi,
We are using 6 middle tiers for internal access for intranet access and 2 middle tiers in External DMZ with only web server running for Extrenal Access over Internet for Self Service.
You Implement one Load Balancer for first 6 internal Middle Tiers with site level profiles pointing to Internal .
You implement second Load balancer for external 2 middle tiers with server level profile options for these two servers pointing to External Load balancer .
To check how to implement load balancer vsiit
http://becomeappsdba.blogspot.com/2006/09/configure-hardware-load-balancer-at.html
Wait for my next post in above blog site with step by step procedure to implement above solution External & Internal one
Atul Kumar
Oracle Apps DBA
http://teachmeoracle.com

Load Balancing for Microsoft Orchestrator application

Hi Folks,
We are trying to configure Load Balancing for Orchestrator Server.
We have closely 200 users running a workflow.. so in that case, we need to configure the Runbook Server as a application load balancing cluster, so please do share me the configuration guides..
Regards,
Venu
Best regards, Venu.

I'm in the middle of doing this right now. There is a doc on metalink (233428.1) that details the process. I would highly recommend trying this in dev/test env first. Even though the instructions are very straight forward and not very complicated, I'm still having configuration issues.
Clint

Does Office365 EWS provides Push Notification service for Contacts and Calendar Events?

Even though there are REST API's for performing PUSH and PULL operations for Office365(online), I am still looking the old EWS approach where in I want to subscribe for PUSH notification service for Contacts, Calendars and Mail Boxes.
Can any one suggest if there is a way to achieve this.

I posted an answer in your Stack Overflow post.
http://stackoverflow.com/questions/27837887/does-office365-ews-provides-push-notification-service-for-contacts-and-calendar/27844747#27844747

Reverse Proxy and Load Balancer for SMP 2.3 and Agentry Application

Hi Expert,
I'm putting in place a mobile solution composed by SMP 2.3 SPS 4 and SAP ECC 6.0. In the SMP 2.3 I created the agentry server and I have deployed my agentry application.
My SMP/Agentry infrastructure is composed by two servers therefore I need a load balancer for balance the load into the several servers. Furthermore I need to use a reverse proxy in my DMZ zone.
Based on what indicated in the SAP note "1904213 - SAP Mobile Platform Server Release Information" the Apache Reverse Proxy is not supported for Agentry clients. Agentry uses nginx for Reverse Proxy.
I also found the following document How-to-Guide for Reverse Proxy and Load Balancing in SAP Mobile Platform 3.x that explain how to set-up a reverse proxy and load balancer with nginx and apache.
Both the SAP note and the HOW to document are refereed to SMP 3.0 and not to SMP 2.3.
I would know if the NGINX must be used also for SMP 2.3.
Any suggestion/information is appreciated.
Thanks in advance
g.

Please see Agentry Network Landscapes

Network load balancer for Agentry applications

Hi Expert,
I'm going to implement a SAP Mobile Platform solution that will use an agentry application and I need some clarification about the HA configuration and the usage of the network load balancer and relay server. Just for information I'm going to use SMP 2.3 SP4.
My understanding is that Relay server is a reverse proxy and load balancer for SMP but It can't be used for the agentry applications. Is this correct?
Based on the standard configuration in order to balance the load of the client devices in the SMP cluster I have to use a Network load balancer, therefore the technical architecture of my solution should be the following:
|Agentry Client device| ----> | Network Load Balancer | ----> | SMP and Agentry Cluster| -----> |Back end systems|
Is this correct? I didn't find specifications about the Network load balancer.. Is there a list of the Network load balancer products supported from SAP for agentry application. Is there any best practice on the network load balancer?
Thank you in advance for you collaboration.
BR
g.
Tags edited by: Michael Appleby

Because we don't test any directly with our QA we don't have have a preferred products. Talking to our consulting group they normally just use what the customer already has installed in their network. Both Software or hardware load balancers has been used.
The key part needed for the load balancer for Agentry 6.0.x and SMP 2.3 (not SMP 3) that it is set to TCP Pass through.
Stephen

Load Balancer for Access Manager

Which load balancer can we use for Access Manager?
Please give me some advice. Thank you in advance.

Jerry,
the doc url u posted has wrong information. See ticket 64634727.
The steps listed in this doc donot work.
I have successfully configured loadbalancing with Sun LB plugin that comes with AppServer.
Here is what I did....
LBplugin(on WS6.x)-----> AM1 and AM2.
LB vip : am-lb.sun.com
am1 : am1.sun.com
am2: am2.sun.com
The steps I followed are :
1. add the LB vip to orginatination-alias,
2. donot add the LB vip to platform as stated in the doc. jst add am1 and am2 hosts to platform.
3. update /etc/opt/SUNWam/config/AMConfig.properties and update only the following attrib. Donot touch any other attrib.
com.sun.identity.server.fqdnMap[LB-vip]=LB-vip
for ex:
com.sun.identity.server.fqdnMap[lb.am.sun.com]=lb.am.sun.com
The doc u listed is misleading and needs to be taken down.
See ticket that I mentioned above. I wasted like 4 weeks trying to get this working and in the end it turned out to be a bad documentation.
V

DNS load balancing for Enterprise serevrs

Hi All
In my test Lync 2010 Enterprise environments, recently i have implemented the DNS load balancing with webservices
My environment is two lync 2010 ent servers , 1 SQL server, 1 Monitoring + Archive server (Same Box)
The below steps was performed from me for DNS load balancing.
PLEASE NOTE: NO HARDWARE LOAD BALANCING IN MY SETUP
Create a Host record for the Pool name with respective front end servers
Pool name : Pool2.doitnow.com with 2 lync 2010 enterprise servers named lyncfe01n.doitnow.com (192.168.1.5) and lyncfe02.doitnow.com (192.168.1.6)
Two host A records in DNS as POOl2 with IP of 192.168.15 and 192.168.1.6
1. From the Lync Server 2010 program group, open Topology Builder.
2. From the console tree, expand the Enterprise Edition Front End pools node.
3. Right-click the pool, click Edit Properties, and then click
Web Services.
4. Below Internal web services, select the Override FQDN check box.
5. Type the pool FQDN that resolves to the physical IP addresses of the servers in the pool. in
(my case it is Pool2.doitnow.com )
6. Below External web services, type the external pool FQDN that resolves to the virtual IP addresses of the pool, and then click
OK. ((my case it is Pool2.doitnow.com ) - is that REQUIRED ?
7. From the console tree, select Lync Server 2010 , and then in the
Actions pane, click Publish Topology.
IS THERE ANY THING TO BE DONE APART fROM ABOVE POINTS
Now
what i did is. in lyncfe01n.doitnow.com - i have disabled the network card and try to login lync 2010 client , but not succeesfull
my assumption is, it should work via lyncfe02.doitnow.com, since load balanace in DNS is in already in place
do i need to open / firewall rule to be creany port in second lync server
here is the below seqeunce of event viwer from lync
Log Name:      Lync Server
Source:        LS User Services
Date:          1/14/2014 3:34:31 PM
Event ID:      32108
Task Category: (1006)
Level:         Warning
Keywords:      Classic
User:          N/A
Computer:      lyncfe01n.doitnow.com
Description:
Pool Manager changed state of Registrar with FQDN: lyncfe02.doitnow.com to Inactive.
======
Log Name:      Lync Server
Source:        LS User Services
Date:          1/14/2014 3:35:01 PM
Event ID:      32109
Task Category: (1006)
Level:         Information
Keywords:      Classic
User:          N/A
Computer:      lyncfe01n.doitnow.com
Description:
Pool Manager changed state of Registrar with FQDN: lyncfe02.doitnow.com to Active
====
Log Name:      Lync Server
Source:        LS Routing Data Sync Agent
Date:          1/14/2014 3:50:58 PM
Event ID:      48003
Task Category: (1058)
Level:         Information
Keywords:      Classic
User:          N/A
Computer:      lyncfe01n.doitnow.com
Description:
The Routing Data Sync Agent has initiated a sync cycle with: [pool2.doitnow.com]
=====
Log Name:      Lync Server
Source:        LS User Services
Date:          1/14/2014 3:56:21 PM
Event ID:      32108
Task Category: (1006)
Level:         Warning
Keywords:      Classic
User:          N/A
Computer:      lyncfe01n.doitnow.com
Description:
Pool Manager changed state of Registrar with FQDN: lyncfe02.doitnow.com to Inactive.
===============
Log Name:      Lync Server
Source:        LS File Transfer Agent Service
Date:          1/14/2014 3:56:45 PM
Event ID:      1008
Task Category: (1121)
Level:         Error
Keywords:      Classic
User:          N/A
Computer:      lyncfe01n.doitnow.com
Description:
Failed to read Central Management database information from AD connection point. Microsoft Lync Server 2010, File Transfer Agent will continuously attempt to retrieve this information.
While this condition persists, configuration changes will not be delivered to replica machines.
Exception:
Microsoft.Rtc.Management.ADConnect.ADTransientException: Active Directory error "-2147016646" occurred while searching for domain controllers in domain "doitnow.com": "The server is not operational.
Name: "doitnow.com"
" ---> System.DirectoryServices.ActiveDirectory.ActiveDirectoryServerDownException: The server is not operational.
Name: "doitnow.com"
---> System.Runtime.InteropServices.COMException (0x8007203A): The server is not operational.
   at System.DirectoryServices.DirectoryEntry.Bind(Boolean throwIfFail)
   at System.DirectoryServices.DirectoryEntry.Bind()
   at System.DirectoryServices.DirectoryEntry.get_AdsObject()
   at System.DirectoryServices.PropertyValueCollection.PopulateList()
   at System.DirectoryServices.PropertyValueCollection..ctor(DirectoryEntry entry, String propertyName)
   at System.DirectoryServices.PropertyCollection.get_Item(String propertyName)
   at System.DirectoryServices.ActiveDirectory.PropertyManager.GetPropertyValue(DirectoryContext context, DirectoryEntry directoryEntry, String propertyName)
   --- End of inner exception stack trace ---
   at System.DirectoryServices.ActiveDirectory.PropertyManager.GetPropertyValue(DirectoryContext context, DirectoryEntry directoryEntry, String propertyName)
   at System.DirectoryServices.ActiveDirectory.Domain.GetDomain(DirectoryContext context)
   at Microsoft.Rtc.Management.ADConnect.Connection.DirectoryServicesTopologyProvider.GetDCForDomain(String fqdn, NetworkCredential networkCredential)
   --- End of inner exception stack trace ---
   at Microsoft.Rtc.Management.ADConnect.Connection.DirectoryServicesTopologyProvider.GetDCForDomain(String fqdn, NetworkCredential networkCredential)
   at Microsoft.Rtc.Management.ADConnect.Connection.DirectoryServicesTopologyProvider.DiscoverDC()
   at Microsoft.Rtc.Management.ADConnect.Connection.DirectoryServicesTopologyProvider.ReportDownServer(String serverName, ADServerRole role)
   at Microsoft.Rtc.Management.ADConnect.Connection.ADConnection.MarkDown(LdapError ldapError, String message)
   at Microsoft.Rtc.Management.ADConnect.Connection.ADConnection.AnalyzeDirectoryError(DirectoryException de)
   at Microsoft.Rtc.Management.ADConnect.Session.ADSession.AnalyzeDirectoryError(ADConnection connection, DirectoryRequest request, DirectoryException de, Int32 totalRetries, Int32 retriesOnServer)
   at Microsoft.Rtc.Management.ADConnect.Session.ADSession.Find(ADObjectId rootId, String optionalBaseDN, QueryScope scope, QueryFilter filter, SortBy sortBy, Int32 maxResults, IEnumerable`1 properties, CreateObjectDelegate objectCreator, CreateObjectsDelegate
arrayCreator, Boolean includeDeletedObjects)
   at Microsoft.Rtc.Management.ADConnect.Session.ADSession.Find(ADObjectId rootId, QueryScope scope, QueryFilter filter, SortBy sortBy, Int32 maxResults, IEnumerable`1 properties, CreateObjectDelegate objectCtor, CreateObjectsDelegate arrayCtor)
   at Microsoft.Rtc.Management.ADConnect.Session.ADSession.Find[TResult](ADObjectId rootId, QueryScope scope, QueryFilter filter, SortBy sortBy, Int32 maxResults, IEnumerable`1 properties)
   at Microsoft.Rtc.Management.ADConnect.Session.ADSession.GetTopologySetting()
   at Microsoft.Rtc.Management.ADConnect.Session.ADSession.GetBackEndServer()
   at Microsoft.Rtc.Xds.Replication.Common.Utils.TryGetConnectionPointFromAD(String& sqlStorePath, Exception& exception)
Cause: Possible issues with configuration or AD access.
Resolution:
Ensure that activation is completed and AD is accessible from this machine.
   at Microsoft.Rtc.Xds.Replication.Common.Utils.TryGetConnectionPointFromAD(String& sqlStorePath, Exception& exception)</Data>
====================
Log Name:      Lync Server
Source:        LS Master Replicator Agent Service
Date:          1/14/2014 3:56:45 PM
Event ID:      2014
Task Category: (2122)
Level:         Error
Keywords:      Classic
User:          N/A
Computer:      lyncfe01n.doitnow.com
Description:
Failed to read Central Management database information from AD connection point. Microsoft Lync Server 2010, Master Replicator Agent will continuously attempt to retrieve this information.
While this condition persists, configuration changes will not be delivered to replica machines.
Exception:
System.ApplicationException: Domain "doitnow.com" cannot be contacted or does not exist. ---> System.DirectoryServices.ActiveDirectory.ActiveDirectoryObjectNotFoundException: The specified domain does not exist or cannot be contacted.
   at System.DirectoryServices.ActiveDirectory.Domain.GetDomain(DirectoryContext context)
   at Microsoft.Rtc.Management.ADConnect.Connection.DirectoryServicesTopologyProvider.GetDCForDomain(String fqdn, NetworkCredential networkCredential)
   --- End of inner exception stack trace ---
   at Microsoft.Rtc.Management.ADConnect.Connection.DirectoryServicesTopologyProvider.GetDCForDomain(String fqdn, NetworkCredential networkCredential)
   at Microsoft.Rtc.Management.ADConnect.Connection.DirectoryServicesTopologyProvider.DiscoverDC()
   at Microsoft.Rtc.Management.ADConnect.Connection.DirectoryServicesTopologyProvider.ReportDownServer(String serverName, ADServerRole role)
   at Microsoft.Rtc.Management.ADConnect.Connection.ADConnection.MarkDown(LdapError ldapError, String message)
   at Microsoft.Rtc.Management.ADConnect.Connection.ADConnection.AnalyzeDirectoryError(DirectoryException de)
   at Microsoft.Rtc.Management.ADConnect.Session.ADSession.AnalyzeDirectoryError(ADConnection connection, DirectoryRequest request, DirectoryException de, Int32 totalRetries, Int32 retriesOnServer)
   at Microsoft.Rtc.Management.ADConnect.Session.ADSession.Find(ADObjectId rootId, String optionalBaseDN, QueryScope scope, QueryFilter filter, SortBy sortBy, Int32 maxResults, IEnumerable`1 properties, CreateObjectDelegate objectCreator, CreateObjectsDelegate
arrayCreator, Boolean includeDeletedObjects)
   at Microsoft.Rtc.Management.ADConnect.Session.ADSession.Find(ADObjectId rootId, QueryScope scope, QueryFilter filter, SortBy sortBy, Int32 maxResults, IEnumerable`1 properties, CreateObjectDelegate objectCtor, CreateObjectsDelegate arrayCtor)
   at Microsoft.Rtc.Management.ADConnect.Session.ADSession.Find[TResult](ADObjectId rootId, QueryScope scope, QueryFilter filter, SortBy sortBy, Int32 maxResults, IEnumerable`1 properties)
   at Microsoft.Rtc.Management.ADConnect.Session.ADSession.GetTopologySetting()
   at Microsoft.Rtc.Management.ADConnect.Session.ADSession.GetBackEndServer()
   at Microsoft.Rtc.Xds.Replication.Common.Utils.TryGetConnectionPointFromAD(String& sqlStorePath, Exception& exception)
Cause: Possible issues with configuration or AD access.
Resolution:
Ensure that activation is completed and AD is accessible from this machine.
===============
Log Name:      Lync Server
Source:        LS Inbound Routing
Date:          1/14/2014 3:56:46 PM
Event ID:      45005
Task Category: (1037)
Level:         Error
Keywords:      Classic
User:          N/A
Computer:      lyncfe01n.doitnow.com
Description:
Unexpected exception occurred in the Inbound Routing Application.
======================================
Log Name:      Lync Server
Source:        LS User Services
Date:          1/14/2014 3:56:53 PM
Event ID:      30975
Task Category: (1006)
Level:         Warning
Keywords:      Classic
User:          N/A
Computer:      lyncfe01n.doitnow.com
Description:
Encountered a connection failure while executing a request against the back-end.
Back-end: sql.doitnow.com\rtc
Log Name:      Lync Server
Source:        LS User Services
Date:          1/14/2014 3:56:53 PM
Event ID:      32134
Task Category: (1006)
Level:         Error
Keywords:      Classic
User:          N/A
Computer:      lyncfe01n.doitnow.com
Description:
Failed to connect to back-end database. Lync Server will continuously attempt to reconnect to the back-end. While this condition persists, incoming messages will receive error responses.
Back-end Server: sql.doitnow.com\rtc   Database: rtc Connection string of:
driver={SQL Server Native Client 10.0};Trusted_Connection=yes;AutoTranslate=no;server=sql.doitnow.com\rtc;database=rtc;
Cause: Possible issues with back-end database.
Resolution:
Ensure the back-end is functioning correctly.
=================
Log Name:      Lync Server
Source:        LS User Services
Date:          1/14/2014 3:56:53 PM
Event ID:      32112
Task Category: (1006)
Level:         Warning
Keywords:      Classic
User:          N/A
Computer:      lyncfe01n.doitnow.com
Description:
Pas with FQDN: Pool2.doitnow.com has been detected to be down.
=================
Log Name:      Lync Server
Source:        LS User Services
Date:          1/14/2014 3:56:54 PM
Event ID:      32098
Task Category: (1006)
Level:         Warning
Keywords:      Classic
User:          N/A
Computer:      lyncfe01n.doitnow.com
Description:
Failed processing conference status requests. This error might delay the freeing up of PSTN meeting ids in conference directories homed on this pool.
Error code: 0x800407D0
Cause: Possible issues with back-end or Lync Server health.
Resolution:
Ensure the Lync Server service is healthy.
===========
Log Name:      Lync Server
Source:        LS User Replicator
Date:          1/14/2014 3:58:33 PM
Event ID:      30022
Task Category: (1009)
Level:         Warning
Keywords:      Classic
User:          N/A
Computer:      lyncfe01n.doitnow.com
Description:
The connection to domain controller DC01.doitnow.com appears to have been terminated. The domain controller could have gone down. User Replicator will attempt to reconnect to an available domain controller for this domain.
=====
Log Name:      Lync Server
Source:        LS File Transfer Agent Service
Date:          1/14/2014 3:58:43 PM
Event ID:      1035
Task Category: (1121)
Level:         Error
Keywords:      Classic
User:          N/A
Computer:      lyncfe01n.doitnow.com
Description:
Failed to register with back-end database. Microsoft Lync Server 2010, File Transfer Agent will continuously attempt to reconnect to the back-end. While this condition persists, no replication will be done.
The Connection string: Data Source         = sql.doitnow.com\rtc;
                Database            = xds;
                Max Pool Size       = 5;
                Connection Timeout = 60;
                Connection Reset    = false;
                Enlist              = false;
                Integrated Security = true;
                Pooling             = true;
Exception: [-1] Could not connect to SQL server : [Exception=System.Data.SqlClient.SqlException: A network-related or instance-specific error occurred while establishing a connection to SQL Server. The server was not found or was not accessible. Verify that
the instance name is correct and that SQL Server is configured to allow remote connections. (provider: SQL Network Interfaces, error: 26 - Error Locating Server/Instance Specified)
   at System.Data.SqlClient.SqlInternalConnection.OnError(SqlException exception, Boolean breakConnection)
   at System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning(TdsParserStateObject stateObj)
   at System.Data.SqlClient.TdsParser.Connect(ServerInfo serverInfo, SqlInternalConnectionTds connHandler, Boolean ignoreSniOpenTimeout, Int64 timerExpire, Boolean encrypt, Boolean trustServerCert, Boolean integratedSecurity, SqlConnection owningObject)
   at System.Data.SqlClient.SqlInternalConnectionTds.AttemptOneLogin(ServerInfo serverInfo, String newPassword, Boolean ignoreSniOpenTimeout, Int64 timerExpire, SqlConnection owningObject)
   at System.Data.SqlClient.SqlInternalConnectionTds.LoginNoFailover(String host, String newPassword, Boolean redirectedUserInstance, SqlConnection owningObject, SqlConnectionString connectionOptions, Int64 timerStart)
   at System.Data.SqlClient.SqlInternalConnectionTds.OpenLoginEnlist(SqlConnection owningObject, SqlConnectionString connectionOptions, String newPassword, Boolean redirectedUserInstance)
   at System.Data.SqlClient.SqlInternalConnectionTds..ctor(DbConnectionPoolIdentity identity, SqlConnectionString connectionOptions, Object providerInfo, String newPassword, SqlConnection owningObject, Boolean redirectedUserInstance)
   at System.Data.SqlClient.SqlConnectionFactory.CreateConnection(DbConnectionOptions options, Object poolGroupProviderInfo, DbConnectionPool pool, DbConnection owningConnection)
   at System.Data.ProviderBase.DbConnectionFactory.CreatePooledConnection(DbConnection owningConnection, DbConnectionPool pool, DbConnectionOptions options)
   at System.Data.ProviderBase.DbConnectionPool.CreateObject(DbConnection owningObject)
   at System.Data.ProviderBase.DbConnectionPool.UserCreateRequest(DbConnection owningObject)
   at System.Data.ProviderBase.DbConnectionPool.GetConnection(DbConnection owningObject)
   at System.Data.ProviderBase.DbConnectionFactory.GetConnection(DbConnection owningConnection)
   at System.Data.ProviderBase.DbConnectionClosed.OpenConnection(DbConnection outerConnection, DbConnectionFactory connectionFactory)
   at System.Data.SqlClient.SqlConnection.Open()
   at Microsoft.Rtc.Common.Data.DBCore.PerformSprocContextExecution(SprocContext sprocContext)]
Cause: Possible issues with back-end database.
Resolution:
Ensure the back-end is functioning correctly.
=================

Thanks Andrew.
may be i missed to create SRV records for the second FE server - Let me check this point and come back -- is it mandatory to create the SRV records for second FE server?
Are the clients using "Automatic Configuration"? Yes.
so web service need a hardware load balancer right?

ISE 1.2 - Multiple NICs/Load Balancing for DHCP Probe

Hello guys
Just prepping an ISE 1.2 patch 8 setup in our organization. I am going for the virtual appliances with multiple NICs. It will be a distributed deployment with 4 x PSNs behind a load balancer and there is no requirement for wireless or guest user at the moment. I've got 2 points I will like to get some guidance on:
Our DC has a dedicated mgmt network and I plan to IP the gig0 interface of the PANs, MNTs and PSNs from this subnet. All device admin, clustering, config replication, etc will be over this interface. However, RADIUS/probe/other user traffic to the ISE PSNs will be over the gig1 interface which will be addressed from another L3 network. Is this a supported configuration in ISE?
I intend to use the DHCP probe as part of device profiling and will ideally like to have just an additional ip helper to add to our switch SVI config. Also, it will appear that WLCs can only be configured for 2 DHCP servers for a given network so another consideration for when we bringing our WLAN in scope. We however use ACE load balancers within our DC and from what I have read, they do not support DHCP load balancing. Are there any workarounds to using the DHCP probe with multiple PSNs without having to add each node as an ip helper/DHCP server on the NADs?
Thanks in advance
Sayre

Hello Sayre-
For Question #1:
Management is restricted to GigabitEthernet 0 and that cannot be changed so you should be good there
You can configure Radius and Profiling to be enabled on other interfaces
Even though you are not using guest services yet, you can dedicate an interface just for that. As a result, you can separate guest traffic completely from your production network
Take a look at this link for more info:
http://www.cisco.com/c/en/us/td/docs/security/ise/1-2/installation_guide/ise_ig/ise_app_c-ports.html
For Question #2
If you are using a Cisco WLC and running code 7.4 and newer you don't need to mess with the IP helper configurations.
The controller can be configured to act as a collector for client profiling and interact with the DHCP thread along with the RADIUS accounting task that is running on the controller. The controller receives a copy of the DHCP request packet sent from the DHCP thread and parses the DHCP packet for two options:
–Option 12—HostName of the client
–Option 60—The Vendor Class Identifier
After this information is gathered from the DHCP_REQUEST packet, a message is formed by the controller with these option fields and is sent to the RADIUS accounting thread, which is in turn transmitted to the ISE in the form of an interim accounting message.
Both DHCP and HTTP profiling settings are located under the "Advanced" configuration tab in the WLC
On the other hand, you can also use Anycast for profiling. You can check out some of Cisco Live's sessions for more info on that. Here is one that is from a couple of years (There are more recent ones that are available as well):
http://www.alcatron.net/Cisco%20Live%202013%20Melbourne/Cisco%20Live%20Content/Security/BRKSEC-3040%20%20Advanced%20ISE%20and%20Secure%20Access%20Deployment.pdf
I hope this helps!
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Load Balancing for Oracle Apps in linux

Dear all,
I need anykind of information for load balancing (how to do it - architecture) for oracle application in linux environment.
Just for info, the database will be on linux too using RAC (3 machines). I have 4 machines to be use as application tier.
any kind of information will be appriciated.
You can also send it directly to my email account: [email protected] or [email protected]
best regards,
Yohan

I'm in the middle of doing this right now. There is a doc on metalink (233428.1) that details the process. I would highly recommend trying this in dev/test env first. Even though the instructions are very straight forward and not very complicated, I'm still having configuration issues.
Clint

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Hi,
I have a two node RAC database 11gR2 version.I am planning to create 2 services for the database.For one of the services I dont want to enable server side load balancing and for the other one I want to enable load balancing.Will the following setting work
services:
srv1 -- load balancing not to be enabled
srv2 -- load balancing to be enabled
DB configuration:
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Will this serve my purpose
Thanks
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