SQL Server Admin 2014 :: Application Connecting To AG Listener Static IP Address - Not Name
Jul 22, 2015
We have a bought in application written in Visual Basic 6 using ADO 2.7 to connect to SQL Server. The application has two connections strings and uses internal logic to determine which of the two connection strings connects to a read-write database. It does something as simple as trying an update that makes no changes to a very small table somewhere.
Previously this application connected to a Mirrored Database hosted on two Windows Server Failover Clusters and SQL Server 2005.For the future the App will be connecting this application to a SQL Server 2014 Availability Group.The Availability Group is made up of four servers, in a cluster, two at one site on Subnet A and the other two at a second site on Subnet B. The Availability Group has been given a Listener with a DNS name of AGLISTEST on port 1433 with two Static IP addresses, one for each subnet.
Our Contractor has configured the Application’s connection strings to connect to the two Static IP addresses assigned to the AG. He is of the opinion that although ADO has zero understanding of an Availability Group, at least one of the Static IP Address will translate to the Availability Group primary server because it is a Cluster Resource and so act like a Cluster IP Address on Windows Server Failover Cluster; i.e. sort of mimicking the previous configuration. This does work and he has demonstrated it, however I can’t find any article that proves to my satisfaction this is intended behavior not something that accidentally works. If it is accidental behavior then that would be something that might stop working at an unexpected point in the future.
All the research I have found relates to connecting to the AG Listener name, and all the multi-subnet issues and Active Directory issues that go with connecting using what is a legacy client.So; the question is, is this translation / redirection of static IP Addresses assigned to an Availability Group listener documented and safe?
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Jun 25, 2014
In our environment applications are using a DNS name which points to the physical server ip address. Now we are planning to move to 2014. We are planning to have servers in different subnets so we will be having two ip adresses for listener. How we can point the DNS to the listener ips? If failover happens can the DNS point to the exact ip address of the listener where it's primary node?
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Jul 27, 2015
Do I need to rebuild my indexes on my High Availability listeners?
When I do a full index rebuild on my primary DB's. Does rebuilding also send the rebuild to the listener(s)?
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Jul 28, 2015
I need to check connectivity to AG listener remotely and log that to a table/file. What is the best way to do that? Powershell?
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Feb 16, 2015
I am trying to build out an AlwaysOn AG with 2 nodes each in a different subnet (in AWS if that matters), windows 2012r2 / SQL 2014 RTM
I created a AG Listener with 2 ip address, 1 for each subnet (checked that neither ip address are used). But whenever i failover the AG to the secondary, and try and connect via the listener it fails,
I am trying to connect via SSMS from the primary instance. and just time out, If i roll over to the primary i can connect no issues, I've tried playing with the connection settings, upping the time out to 30 secs, adding the MultiSubnetFailover=true. etc but not getting any joy.
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Apr 15, 2015
Say I have 2014 AlwaysOn setup and working:
SQLNode1 ->Instance01
SQLNode2 ->Instance02
When I setup my listener: ListenerA...Do I need to use the instance name in it?
ListenerAInstance01 or ListenerAInstance02 depending on which SQLNode is the "active" availability group?
Am I better off to use the same instance name for both nodes, since my goal is to have all databases on both instances in the same availability group and sync'd? When SQLNode1 migrates over to SQLNode2 I will need to update the instance name in my connection string on the listener from ListenerAInstance01 to Instance02? When I connect with SSMS do I just use: ListenerAInstance01 (or 02)?
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Sep 1, 2015
We have a server A and a server B setup with SQL2014 High Availability - working fine.
I need to add an additional listener to our new DR site.
What is the best way to do this without impacting production - can I just add the additional replica from nodea as a secondary replica?
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Nov 3, 2015
I changed the Port of my named instance to use static port but still error log is giving two values ,why??
spid15sServer is listening on [ 'any' <ipv6> 50152].
spid15sServer is listening on [ 'any' <ipv4> 50152].
ServerServer is listening on [ ::1 <ipv6> 57518].
ServerServer is listening on [ 127.0.0.1 <ipv4> 57518].
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Mar 23, 2015
I have a 2 node cluster with 2 standalone 2k14 instances having alwayson setup. As per client requirement we have created a client access point with a cname alias in dns to connect to secondary replica. Now, everytime whenerver the roles switch over one has to manually move this resource from the previous secondary node to the new secondary node. This is tedious, and should not be done manually either, so I am looking for a way to automate it so that as soon as the role switches over, the resource group after some time should also switch over to the current secondary.
Env details
xa (current primary)
y2a (secondary)
client access point (resource group): aglreadtest
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Jun 27, 2015
I setup an availability Group. (Only 2 servers - Primary And secondary) -- 21 , 22
I also define an listener . IP .. 23
1- In First step I connected To Listener (23) And in a while I inserted A record to a table .
While 1=1
insert into Tbl_T1(f1,f2) Values (1,2)
2- in second, I Stop the primary .
- I expected this while whitout disconnect, continue.
3- The while code stopped whit this message :
Msg 64, Level 20, State 0, Line 0 A transport-level error has occurred when receiving results from the server. (provider: TCP Provider, error: 0 - The specified network name is no longer available.)
4- I execute again the script, And it worked in new primary.
My questions :
1- is the listener disconnected between switched primary and secondary ? OR have we data loss between switching?
2- I did some huge update on Primary that fill the Log fiel space. And in last Update I got this error :
Msg 9002, Level 17, State 2, Line 27
The transaction log for database 'Your_DB' is full due to 'LOG_BACKUP'.
Is this (Fill All space) a reason to switch primary? Or not ?
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Apr 3, 2015
Basically the question is, which number should I pick?
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Sep 3, 2014
I am asking about a virtual IP for SQL Server, is there a way we can assign a different IP to SQL Server other than the server's(host) IP address? like the same what we do in a clustered env.
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Dec 3, 2013
We have applications connected to SQL using windows authentication. While having connection with Application user can also access to Database instance on the same time as well. We need to limit the access of user outside application.
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Jul 4, 2014
Has experienced this error when trying to open SSMS? Was working fine earlier. I have tried uninstall/reinstall, a few reboots,repairing the install, etc.
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Jun 12, 2006
Hi, I am connecting from clientside with sql server 2005 installed trying to connect to a database running on a server with sql server 2000 installed. this is not a 2000 to 2005 compatibility issue.
I can connect locally fine to the server and log in using the sa account, however for BDE admin i HAVE to use the server name instead of ip address. If i try to use the ip address of the server, the connection dosnt get established. *this is all happening localy on our own network.
How to I use ip address to connect instead of the server name? I will need to connect remotely outside of our network later on, and i dont think I can use the servername. Does anyone have a solution? thanks.
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Jun 3, 2014
1) We are providing a e governance solution for an organization,where we are providing a centralized database,Client have provided 5 Database server for the same.how can we position the Database Server? there are 5000 Concurrent users and 25000 users,SAN Storage for approx. 60 TB,Database size of 2 TB and growth of 1 TB every year
2) How many instance can we have for above said Case?
3) How much RAM Required ?
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Aug 27, 2015
I want to set up a database role so that users can use sp_readerrorlog through SSMS. It does a check on membership in the securityadmin role.
I have tested it and can see you can grant execute on xp_readerrorlog but the SSMS GUI uses sp_readerrorlog.
I thought I could create a user/certificate and add the signature to sp_readerrorlog but it's not permitted (likely because it's not a normal database object).
So the other solution is to add the users to the securityadmin role but then explicitly deny alter any login (best done with a custom server role in 2012+ but otherwise just manually in 2008). I tested this out and it works, I'm not able to alter any logins or increase my own permissions, I also did a check of what's reported from fn_my_permissions(null, null) and it shows minimal permissions like I'd expect.
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Aug 15, 2014
We have a multi-site AG and are demoting one of the remote sites out of the AG. In doing so, we've discovered that no logic exists to remove an IP address from the listener.
It seems that the ALTER AVAILABILITY GROUP MODIFY LISTENER logic lacks functionality other than ADD. [URL] ....
I'm afraid to just remove the IP address from the cluster object as that IP is also stored in the HADR systables.
select * from sys.availability_group_listener_ip_addresses
select * from sys.availability_group_listeners
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Feb 27, 2008
I have not been able to find any substantive documentation on connecting a DataSource to the database via the IP address of the SQL Server. Does anyone know of a good reference on the topic? I want to be able to access the data on the server while developing and testing locally on my laptop (not on the same network).
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Aug 14, 2015
After manual AG fail-over from primary to secondary the application is not able to connect the listener name for atleast for 5 - 10 mins
The telnet fails during this time from app server, the listener ip is on muti-subnet.
At the same when i try to connect it from SSMS from a remote machine it works fine.
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Feb 5, 2015
I am implementing a fax solution (Right Fax) and pulling email information from a table and passing into a variable. In order to send out a fax via email, the syntax is in the following example below:
Example:
To send a fax from Outlook to Jane Doe at 555-1212, enter:
[RFAX:Jane Doe@/FN=555-1212]
When the following syntax gets passed into the Send Mail Task, into the "To" line and the package is executed I'm receiving the following.
[Send Mail Task] Error: An error occurred with the following error message: "The specified string is not in the form required for an e-mail address.".
[Send Mail Task] Warning: The address in the "To" line is malformed. It is either missing the "@" symbol or is not valid.
I realize it’s a malformed email address. Is it possible to create a group and instead of the fax syntax pass the group name?
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Sep 27, 2007
Hi Everybody
I am having same problem. I am trying to connect my vb6 application with SQL Server 2000. My database is on database server machine which has ID ADMIN and SQL Server is using default instance. Database instance name is DBPIMS. When I try to connect this database within any machine of LAN, it is working fine. But If I want to connect from my home or some other place through internet, it is not cannecting database to database.. I've 2wire router installed at my office. & I've done port forwarding for port 1433. Also I've one static IP which I am using for connection. My connection string is
"Provider=SQLOLEDB.1;Password=xxxx;Persist Security Info=True;User ID=xxx;Initial Catalog=<atabase instance name;Data Source=" & static IP addres
But it couldn't get connected to database. Please can anybody help me. I am in urgent need to solve this as its been since long I am trying find its solution.
Thanks in advance
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Apr 14, 2015
I inherited a lot of Servers to upgrade to 2014 to include an SSRS Server.
The encryption Key was never backed up and it seems that no one knows what the password is?
Do I have to manually load the reports? There are a lot of Reports.
[URL]
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Sep 26, 2013
I want to use BCP to load data from a text file.
By default, constraints are turned off in bcp, so I use the CHECK_CONSTRAINTS hint.
bcp aborts if ANY of the rows contains a FK violation. No data get loaded.
So if I add the -b 1 batch size option, it loads all data UNTIL the first FK violation, but nothing after that.
I want to load EVERYTHING ... except for the violations. But bcp won't let me. Is there a way?
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Jan 13, 2014
If I install an instance with Windows Only authentication, and then change it to Mixed Mode, if I enable the sa login, the password has already been set. What is the default? If it's generated, how secure is it? Is the password generated? What algorithm is used for that?
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Mar 21, 2014
My sql databases in SQL Server 2014 has the status "suspend" as I saw in SQL Management Studio. I can't restore to serviceable condition sql databases through standard procedures. I need to restore .mdf file.
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Jun 18, 2014
I am using a monitoring system where I can monitor a numeric SQL result assuming the result is one field and one row.I would like to do this to say monitor the free available space or percentage on say the Master database. DBCC SQLPERF gives me a few columns and results for all databases on the server.
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Jul 31, 2014
Is there a way to schedule a sql job to run at different intervals
For eg:
The job should run at
7:00 Am
8:00 AM
and then at 10:00 Am
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Nov 19, 2014
We installed the Sql 2014 in Test server.
We observed frequently
"Process 0:0:0 (0x1e10) Worker 0x00000006B6D341A0 appears to be non-yielding on Scheduler 13. Thread creation time: 12906028806348. Approx Thread CPU Used: kernel 0 ms, user 0 ms. Process Utilization 13%. System Idle 84%. Interval: 70189 ms."
Is it better to run the profiler or performan counter?
What are the filters we have to select in the profiler to monitor the Sql server
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Dec 8, 2014
I have a SQL server box running 2014 reporting services. I have another server running IIS v8.
I would like to be able to connect to the IIS site and be given the SSRS report browser.
So externally if I browse to [URL], I am presented with the report server interface, the same as if I browse to http://xxx.xxx.xxx.xxx/reports internally.
What are my options?
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Dec 11, 2014
What is the best approach for a read only copy of a database that is ~ 1TB. The primary database is fed nightly with an ETL process. We are currently trying to duplicate the ETL to read only server but that process is not going well. So we are looking at other options to let SQL make the copy.
The primary database is on a Win12R2 with SQL 12 or 14, a 2 node A/P failover cluster.
The read only copy will be on a Win12R2 with SQL 12 or 14. It is not a requirement to fail over to the read only copy if the primary should go down.
What would best the approach to accomplish the end result?
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Jan 12, 2015
I did not worked on AVG in sql 2012, what are the possible errors and how to resolve in always on in sql 2012 .
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Jan 18, 2015
I have 10 databases which are configured as principal in mirroring I need to failover all the databases as part of failover , instead of writing query each database as parner failover, is an script which will generate the databases as principal to failover ?
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