DTC On Active/Active Cluster
Oct 5, 2007
I have an active/active setup with 3 groups. Two SQL Groups and one cluster group that also contains the DTC. I am 99% sure that I setup everything correctly and everything appears to be running fine. The issue is that in SQL Mgmt Studio, the instance that is running on the physical node that owns the Cluster group (therefor has the DTC) shows the Distributed Transaction Coordinator as online. The instance running on the other node show it as offline. Is this correct behavior? I am not a SQL Expert, and know enough to get things up and running and maintain them. Thanks in advance!
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Aug 30, 2006
We have (had) an active/active cluster. 2 physical machines,
each running their own instance, clustered together. Node1/Ins1 and Node2/Ins2.
Node2 failed and Ins2 failed over to Node1 as it should. Node2 required that we
rebuild the server (rebuild = reinstall O/S). Now we need to get Node2 back
into the cluster and get Ins2 failed back over to Node2.
Does anyone know, for certain, the correct steps to accomplish this? Obviously,
we could backup everything and completely destroy Ins2 and recreate it on Node2
then rejoin the cluster. But I'm looking for something less destructive.
Is it possible to reinstall SQL, then rejoin the cluster, and then fail Node2
over? Or will there be registry conflictions?
Any help would be appreciated. Also, if you have any links to some official
documentation, that would be great too.
Thanks
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Mar 5, 2008
Hi
I am having some teething problems while installing SQL on a 3 node cluster. Within the Cluster configuration I have 3 Cluster Groups with each of them having their associated disk resources. All these disk resources physically exist on a SAN.
The actual cluster is running absolutely fine and I can access all the disks from their respective owner node. The problem only starts when I start installing SQL Server 2005 on this cluster. I specify the Cluster group from the Cluster Group Selection and choose the desired partition and then the error message pops up
"There is not enough diskspace on the destination disk for the current SQL Server data files. To proceed, free up disk space to make room for data files, or install the data files to a different drive"
But the disk I am trying to install it on is 264Gb and none of it is used. I have also tried to change it to a different disk within the same Cluster group but to no avail. I have even tried to install it in a different cluster group all together but I get the same error message.
I have googled around havent found anything so far. The disks have got full permissions for the account I am installing SQL with.
Any help will be much appreciated.
Regards
Adnan
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Nov 30, 2006
Hi folks,
We are going thru the process of scoping an active/active cluster at one site.
I was wondering whether there will be any issues with mirroring (DB by DB) off the cluster into non clustered server at an alternate DRP site.
Regards, Brian
Sutherland
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Mar 12, 2008
Hi all, My aim to install active/active 2 node SQL 2005 cluster. I have installed sql cluster on one mode, which automatically installed on node 2.
it works great. However When i tried to install second virtual server, it is not allowing me to install.
it says already install, can anyone tell me how to install active active cluster
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Oct 12, 2002
ACTIVE/ACTIVE SQL Server 2000 Cluster
This was my plan.
Physical box - box1,box2
virtual box - virtual1
i have a active/passive cluster virtual1 (primary node box1, secondary box2)
I am creating another virtual box on box2 as primary node by name virtual2)
whenever my installation setup runs my default server name is greyed out. it always requires a instance name.
Is that the way it should work?
i can only use instance for active/active failover?
please advice
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Jun 29, 2004
How do I install MSDTC in an active/active MSCS cluster environment?
If I run comclust.exe, I can only activate MSDTC on one of the nodes at a time.
I need DTC on both nodes.
(Opsys is W2K with SQL 2000)
//Mange :)
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Sep 27, 2005
Hello folks,
have you ever heard of an Active/Active SQL Sever 2000 Cluster deployed in a pure OLTP environment?
Some 8 years ago I have learned about a bespoke solution for the SAP ERP system (not the BW!) with DB2 Parallel Server for a huge German company. Then again, I would expect that Oracle RAC might fit into an OLTP environment, although I never heard about a real world implementation.
All this led me to believe clustering is good for failover purposes, and for decision support services, not quite for OLTP applications.
So if you see a point in Active/Active Clustering and OLTP please come forward and explain.
Cheers,
Johann
P.S: For those of you who want to know: Consultants from www.hiltes.com want us to deploy an Active/Active Cluster for their Fashion 3000 Net stock software.
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Mar 22, 2007
We run several SQL 2000 SP4 instances on IA64 active/active cluster. The OS we run with is Windows Server 2003 SP1. We have different network cards : 2 network cards teamed for production purposes in domain X and 1 network card dedicated for problem solving in domain Y.
First we configured the cluster with only the 2 teamed network cards for production purposes in domain X. Later we introduced the second network card for problem solving in domain Y.
Everything looks fine. The (virtual) SQL instance listens on two different IP adresses on TCP port 1034. If we try to make connection via isql, EM or Query analyzer than we can directly contact the SQL instance from a workstation/server within domain X but this doesn't work form a workstation/server within domain Y. However if we use the specific TCP port in the connection in domain Y the connection is setup. We wish however not to use explicit TCP ports in setting up connections.
Has anyone experienced the same problem before or has anyone an idea how to solve the problem?
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Jun 8, 2007
I have a 2005 active/active cluster and want to apply SQL server 2005 SP2 to both node.
I know that for active/passive , the sp can simple be installed on the active node(instance) and everything will be replicated to the other node.
bear in mind what I have SSIS and SSAS and SSRS running on the active/active cluster.
what is the rigth method for applying the SP to activeactive cluster?
Thanks
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Mar 5, 2001
Hi
While configuring an active / active cluster, do I need to run the SQL setup on both nodes?
The SQL2K setup installs binaries on localdisks of both nodes - hence the question.
thanks
Liju
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Sep 21, 2000
Hi
I am running some tests on SQL7 in an active/active cluster and have a couple of queries
1. When I create an ODBC DSN, why is the "Use the Failover SQL Server if the primary SQL Server" checkbox disabled
2. To test, I was running SQL queries from Access over the DSN created. When the Primary Server went down, I had to reconnect to re run the query - Is this normal?
3. Can someone point me to any documentation on the above scenario that would shed some more light?
Thanks
Liju
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Oct 26, 1999
I currently have a two node HP hardware active/active cluster server. Running windows NT 4.0 Enterprise and dSQL server 6.5 sp 3. I want to upgrade the cluster to SQL 7. I would like to know if anyone ran into any problems or has sucessfully attempted this.
Also I read a few months ago about a gottcha involving NT sp4 and SQL sp5a that would prevent a node from failing over. Has this been corrected and does it affect SQL 7.
thanks
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Sep 27, 2002
Hi
Is there anyone who knows where I can get some information about
installing an ACTIVE/ACTIVE SQL 2000 Cluster server (MSCS).
I have no problem setting up an active/passive failover cluster.
Where can I get more information? Do I need two instances? Two databases?
What's the difference between active/active and active/passive?
Thanks!
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Jan 20, 2004
Hello, Can anyone please explain how the failover processes works on a sql server 2000 2 node active/active cluster.
Given the following
You have 2 node active/active cluster NodeA & NodeB
Question
1. How many SQL instances need to be installed on each node?
2. If the answer to question #1 is one instance per node, then
say if NodeA fails NodeB will take over all the resources of NodeA
including the master database, How does that work , how can once instance (in nodeB) handle two master database i.e its own master database and the one taken over from NodeA.
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May 18, 2008
Hi,
I've just setup an 2 node active/active sql cluster (my first). Both servers have exactly the same specification, 16GB of RAM each and SAN attached. My question is, how do I configure the min and max memory for each sql instance. I've read some where that I need to follow the 20-40-40 rule as, 20% for the OS, 40% for the active sql instance on the node and the other 40% is for the other sql instance if it fails over. Are there any other gotcha that I need to be aware of? Can someone share some light with me in regards to this? Thanks
Ken
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May 18, 2006
I want to host 2 seperate SQL databases and wanted to know if it would be possible to run this in an active active cluster config which each database running on a different server.
The clustering would be there in the event of failure of one of the servers but for normal operation the two sql instances would be completely seperate.
Is this configuration possible and would this give the best performance and resiliance from a 2 server setup.
What do you think?
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Jun 3, 2007
Help, I have an active/active cluster with SQL2k5 Ent with SP2 installed on node1 that is currently running live apps, I need to add the 2nd node to have fail over functionality but if I use the Change Install from Add or Remove Programs on the primary node to add the 2nd node I get the following error.
"The File 'c:....SqlRun_SQL.ms' is not a valid installation package for the product Microsoft SQL Server 2005(SQL2K5VVS01). Try to find the installation package 'SqlRun_SQL.msi' in a folder from which you can install Microsoft SQL Server 2005(SQL2K5VVS01).
No I assume this is because node 1 has had service pack two applied. Does anyone have instructions how I can add node two without having to completely uninstall Node 1, as the doc€™s with SQL2005 SP2 say it can not be removed, a complete uninstall of 2005 must be done???
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Jan 16, 2008
I invoke xp_cmdshell proc from inside a stored procedure on a 2-node active/passive SQL 2005 SP2 Standard cluster. Depending on which server the xp_cmdshell gets executed on I need to pass different arguments in the shell command. I thought I could use host_name() function to get the runtime process server, however, I am finding that it's not behaving correctly. In one example I know my active node is server2, but the host_name() function is returning server1. The only thing that I could possible explain this is that the MSDTC cluster group is not always on the same active node as the SQL server group and in the case I am talking about the cluster groups are in this mode (differnet nodes). Does the xp_cmdshell get executed by the SQL active node or the MDTC active node? And what is the best way to find out which server is going to run my xp_cmdshell?
Thanks.
Edit:
Perhaps another by product of this is that if I run select host_name() from the Studio Management query window i get different results depending on which server I am running the Studio Management on. On server1 I get server1 and on server 2 I get server 2, all the while server2 is the active node. I need a different function that will always let me determine the correct server that'll be running the xp_cmdshell...
Edit 2: I guess I could determine the running host inside the command shell itself, but I am curious to see if i can do it (cleaner) from SQL.
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Mar 18, 2008
Hi,
Do I need 2 quorum for active-to-avtive cluster or just one.
thanx in advanced
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Oct 5, 2007
I have an active/active setup with 3 groups. Two SQL Groups and one cluster group that also contains the DTC. I am 99% sure that I setup everything correctly and everything appears to be running fine. The issue is that in SQL Mgmt Studio, the instance that is running on the physical node that owns the Cluster group (therefor has the DTC) shows the Distributed Transaction Coordinator as online. The instance running on the other node show it as offline. Is this correct behavior? I am not a SQL Expert, and know enough to get things up and running and maintain them. Thanks in advance!
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Mar 18, 2008
We have a SQL cluster server running with SQL 2005 Enterprise Edition SP2 on Windows 2003 Enterprise Edition.
Currently the cluster has 2 nodes with Active/Active. Now I need to add a new node as a Passive node. So after I have done it, the cluster will be a Active/Active/Passive cluster.
Because the cluster is a production server, I need to know exactly how I add a new node onto the current cluster without breaking anything. Also this is my first time to install a passive node, so it is difficult for me to understand how to install and configure it.
I have already added the physical node onto the cluster group so I can see the new node €˜paused€™ from the Cluster Administrator. Now I need to install the SQL but I am too nervous to run the installation program.
My questions are:
1. Do I need to run the SQL install program from one of other active nodes in order to install the SQL on to the new node? Or is it ok to run the SQL install program from CD?
2. Do I need to create a new virtual name, a new SQL named instance and a virtual IP address for the new passive node?
Physical node name Virtual name SQL Server Instance Name IP address
Node1 (active) SQL1 SQL1 xxx.xxx.xxx.100
Node2 (active) SQL2 SQL2SQL2 xxx.xxx.xxx.110
Node3 (passive) SQL3??? SQL3SQL3????????? xxx.xxx.xxx.120????
3. Is there a risk to delete or change the current active nodes? If so, will you let me know as I will be super-careful not to do it.
I highly appreciate your help!
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Jan 22, 2015
I have a table with the following columns employeeSessionID, OpDate, OpHour, sessionStartTime, sessionCloseTime. I need to see how many users remain active per hour. I can calculate how many logged in per hour, but I am stumped on how to count how many are active per hour. I have a single table that stores login data. I have created a query that pulls out the only the data needed from the table into a temp table using this query. Also note it is possible that the sessionCloseTime is null if the device has not been logged out this would need to be counted a active.
TABLE NAME #empSessionLog Contains the time stamp data OpDate, sessionStartTime and sessionCloseTime.
OpDatesessionStartTimesessionCloseTime
2015-01-202015-01-20 14:32:59.1302015-01-20 14:33:14.6299166
2015-01-202015-01-20 06:58:33.7302015-01-20 15:27:16.9133442
2015-01-202015-01-20 09:56:22.8402015-01-20 17:56:29.7555853
2015-01-202015-01-20 05:59:18.6132015-01-20 14:05:19.0426707
[code]....
can see how many sessions logged in per hour with the following statement:
SELECT
opDate,
FORMAT(DATEPART(HOUR, sessionStartTime), '00') AS opHour,
Count(*) AS Total
FROM #empSessionLog
Group BY opDate, FORMAT(DATEPART(HOUR, sessionStartTime), '00')
Order BY opDate, FORMAT(DATEPART(HOUR, sessionStartTime), '00') ASCResults:
opDateopHourTotal
2015-01-20041
[code]....
Where I am stuck is how do I count the sessions that remain active per hour until the session is closed with the sessionCloseTime.
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May 12, 2008
Hi
I am newbie in SQL Clustering. I have set up a Windows Server Cluster with 2 nodes and am having the following problem with Physical Disk resource for cluster groups:
My Default Cluster Group (named Cluster Group) has IP Address, Network Name, Physical Disk and MSDTC resources. In addition to that my Default SQL Server instance resources are also in this group. I had this initial set up for Active/Passive mode.
Now I am trying to set up a SQL Cluster in Active/Active mode. For this I have to install another instance of SQL Server in the existing cluster and make a separate cluster group for its resources. I made a new cluster group (SQL Instance Group) with an IP Address and a Network Name resource for this new instance but I dont have any Physical Disk resource to allocate to it. As such while installing the SQL Server Instance I get stuck when I'm asked to select the quorum disk to be used.
Is it possible to configure two quorum disks, one for each group?
What's the concept of dedicated disks resource for each sql instance in a group? Is this same as the quorum disk? If this is not a shared disk how do I configure a dedicated disk resource for my second cluster group (SQL Instance Group)?
Anyone could please help me out with this?
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Nov 2, 1999
Hi,
We are trying to set up an active/active configuration of a SQL Server
cluster, and we had a few questions.
Initially, we want to have 2 Database Servers that would share the same
Database (both reading/writing to the same tables).
However, from reading the MS docs, we find out that we can have what
they call an "active/active" configuration using a Cluster but they
need to have 2 different disk sets, i.e. having 2 separate databases.
If this assumption is correct, how does the data get synchronised
between the 2 databases (that are on the 2 different disks sets)?
Can anyone help? thanks
Axel
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Jun 20, 2008
Hi all,
Newbi to sql clustering.
I have a sql server 2005 standard edition with Active/Passive Cluster in production.
I have a new requirement where i need to create a new instance on this active/passive cluster that can be used by our sharepoint servers. Can somebody please let me know what are the steps that i need to follow like
1.What i need to ask my network admin?
2.How i need to proceed installing?
I am planing to do this over the weekend where i have the liberty of some down time.
Any help greatly appreciated
Thanks
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Aug 12, 2006
I have a 2 way cluster and I want to apply SP4 on it.
Basically, I have 2 servers. Server A runs a default instance and another instance. While the default services is disabled and the other instance is running, Server B runs the default instance and has the other instance disabled. This basically acts like a 2 way cluster (active/passive).
How can I apply SQL Server 2000 SP4 on the 2 servers and have all the nodes come up the correct way? What are the steps to achieve this?
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Apr 4, 2007
I just tried to apply SQL 2005 Std SP2 on a cluster, and all succeeded except for the Database Services. I've looked about and can't see any specific information for this. The Summary.Txt is below. I thought I was following the appropriate steps, according to the SP2 Readme.
Thanks for any help. (I'm at the client today)
Bob Coppedge
me at RLCoppedge dot com
Time: 04/04/2007 10:55:44.249
KB Number: KB921896
Machine: SQL01
OS Version: Microsoft Windows Server 2003 family, Enterprise Edition Service Pack 1 (Build 3790)
Package Language: 1033 (ENU)
Package Platform: x64
Package SP Level: 2
Package Version: 3042
Command-line parameters specified:
Cluster Installation: Yes
Log Location on Passive Nodes:
(SQL01) C:Program FilesMicrosoft SQL Server90Setup BootstrapLOGHotfix
(SQL02) C:Program FilesMicrosoft SQL Server90Setup BootstrapLOGHotfix
**********************************************************************************
Prerequisites Check & Status
SQLSupport: Passed
**********************************************************************************
Products Detected Language Level Patch Level Platform Edition
Setup Support Files ENU 9.1.2047 x64
Database Services (MSSQLSERVER) ENU RTM 2005.090.1399.00 x64 STANDARD
Notification Services ENU SP1 9.00.2047.00 x64 STANDARD
Integration Services ENU SP1 9.00.2047.00 x64 STANDARD
SQL Server Native Client ENU 9.00.2047.00 x64
Client Components ENU SP1 9.1.2047 x64 STANDARD
MSXML 6.0 Parser ENU 6.00.3890.0 x64
SQLXML4 ENU 9.00.2047.00 x64
Backward Compatibility ENU 8.05.1704 x64
Microsoft SQL Server VSS Writer ENU 9.00.2047.00 x64
**********************************************************************************
Products Disqualified & Reason
Product Reason
**********************************************************************************
Processes Locking Files
Process Name Feature Type User Name PID
**********************************************************************************
Product Installation Status
Product : Setup Support Files
Product Version (Previous): 2047
Product Version (Final) : 3042
Status : Success
Log File : C:Program FilesMicrosoft SQL Server90Setup BootstrapLOGHotfixRedist9_Hotfix_KB921896_SqlSupport.msi.log
Error Number : 0
Error Description :
----------------------------------------------------------------------------------
Product : Database Services (MSSQLSERVER)
Product Version (Previous): 1399
Product Version (Final) :
Status : Failure
Log File :
Error Number : 11009
Error Description : No passive nodes were successfully patched
----------------------------------------------------------------------------------
Product : Notification Services
Product Version (Previous): 2047
Product Version (Final) : 3042
Status : Reboot Required
Log File : C:Program FilesMicrosoft SQL Server90Setup BootstrapLOGHotfixNS9_Hotfix_KB921896_sqlrun_ns.msp.log
Error Number : 3010
Error Description :
----------------------------------------------------------------------------------
Product : Integration Services
Product Version (Previous): 2047
Product Version (Final) : 3042
Status : Success
Log File : C:Program FilesMicrosoft SQL Server90Setup BootstrapLOGHotfixDTS9_Hotfix_KB921896_sqlrun_dts.msp.log
Error Number : 0
Error Description :
----------------------------------------------------------------------------------
Product : SQL Server Native Client
Product Version (Previous): 2047
Product Version (Final) : 3042
Status : Reboot Required
Log File : C:Program FilesMicrosoft SQL Server90Setup BootstrapLOGHotfixRedist9_Hotfix_KB921896_sqlncli.msi.log
Error Number : 3010
Error Description :
----------------------------------------------------------------------------------
Product : Client Components
Product Version (Previous): 2047
Product Version (Final) : 3042
Status : Reboot Required
Log File : C:Program FilesMicrosoft SQL Server90Setup BootstrapLOGHotfixSQLTools9_Hotfix_KB921896_sqlrun_tools.msp.log
Error Number : 3010
Error Description :
----------------------------------------------------------------------------------
Product : MSXML 6.0 Parser
Product Version (Previous): 3890
Product Version (Final) : 6.10.1129.0
Status : Success
Log File : C:Program FilesMicrosoft SQL Server90Setup BootstrapLOGHotfixRedist9_Hotfix_KB921896_msxml6.msi.log
Error Number : 0
Error Description :
----------------------------------------------------------------------------------
Product : SQLXML4
Product Version (Previous): 2047
Product Version (Final) : 3042
Status : Success
Log File : C:Program FilesMicrosoft SQL Server90Setup BootstrapLOGHotfixRedist9_Hotfix_KB921896_sqlxml4.msi.log
Error Number : 0
Error Description :
----------------------------------------------------------------------------------
Product : Backward Compatibility
Product Version (Previous): 1704
Product Version (Final) : 2004
Status : Success
Log File : C:Program FilesMicrosoft SQL Server90Setup BootstrapLOGHotfixRedist9_Hotfix_KB921896_SQLServer2005_BC.msi.log
Error Number : 0
Error Description :
----------------------------------------------------------------------------------
Product : Microsoft SQL Server VSS Writer
Product Version (Previous): 2047
Product Version (Final) : 3042
Status : Success
Log File : C:Program FilesMicrosoft SQL Server90Setup BootstrapLOGHotfixRedist9_Hotfix_KB921896_SqlWriter.msi.log
Error Number : 0
Error Description :
----------------------------------------------------------------------------------
**********************************************************************************
Summary
No passive nodes were successfully patched
Exit Code Returned: 11009
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Aug 26, 2014
This is the 1st time we are building a active/passive cluster with 1 node each. we usually install default instance and setup domain account as service account which will have an spn delegated. Now for active/passive cluster is it ok to use same domain account as service account for both clusters with both creating as default instance again as the windows was built as SERVER1 and SERVER2.
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May 3, 2015
Few questions on a SQL Server 2012 two node active/passive cluster installation on Win2012.
1. What are the permissions required for the user used to install SQL Server 2012 cluster. Does it need to have any rights on DC or anywhere else apart from the local nodes ?
2. Can we give ANY meaningful name to "SQL Server Network Name" during installation ? Do we need to manually configure it anywhere else before or after the installation ?
3. On what scenarios we need to check/uncheck DHCP check box ?
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Jun 5, 2015
It is an active passive cluster which doesn’t allow any testing. All instances have to be failed over together, we aren’t allowed to just failover 1 even for testing purposes. Node 1 is the active node and we can failover to node 2 for 30 days free of charge but services have to then be failed back.
We need to run the cluster with node 1 as the primary node always and 2 just use for failover testing or for less than 30 day periods whilst performing cluster patch upgrades etc.
Now l am sure we could fail over 1 instances at a time for testing and diagnosing issues plus if add a new instance that's not production to get to the platform level as the rest of the instances this would avoid taking production down in the fail over process.
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Aug 14, 2015
let me know apart from the following what else is required
2 for private network
2 for public network ......
1 for virtual server/windows cluster ip which is used to connect application
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Nov 4, 2015
We have a SQL 2014 active passive cluster with 5 instances. When the cluster was installed one of the nodes was a virtual machine. As we started to have problems and this is not a Microsoft supported configuration we decided to replace the virtual node with a phyiscal one. On 3 of these 5 instances we configured static ports (1433 TCP) this was required for applications and firewall implementation.
Now with the physical node joined to the cluster we have issues with these three instances. Whenever one of these instances is moved to the passive node the server authentication is changed from mixed to windows only. I'm no SQL expert at all but to me it looks like the configuration of the instances are not replicated to the passive node? I found some similar problems on the net but these are mostly under sql 2008.
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