SQL 2012 :: Removing IP Address From Listener Pool When Demoting One Of Remote Sites
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
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?
Environment: SQL Server 2014 on Windows Server 2012 R2.
We have our availability group configured and working. However, when we try to connect to the AG listener from a remote server, we have to use the fully qualified domain name (FQDN) to connect. We'd like to be able to connect just using the host name. Interestingly, ping actually resolves the IP correctly for either.
I have an issue when connecting with application Intent=readonly when using Listener name. I can connect to the read only secondary with application Intent=readonly if I use the server name. It gives a host does not exist error when using listener. This happens only if I am using the application Intent keyword. I can connect for normal readwrite operation using listener name.
I have set up a couple of servers in a SQL 2012 AlwaysOn Availability Group (non FCI). I have also configured a Listener which enables SQL clients to connect to the server currently servicing the database, as expected.
I would also like non SQL clients to be able to connect to the server currently hosting the database so that they can run scripts sitting in a share. I don't have a shared disk so just have a directory share on each server with the same scripts in each directory.
I am able to ping and RDP to the listener IP address/name and end up on the correct server but am unable to connect to the share ListenerNameShare. Is that actually supported? If it is, any thoughts on what I need to do to get it going. If it isn't what other options do I have?
So I have Availability groups configured as well as the Availability Group Listener, what If I want to change the port that the listener is listening on, do I need to reboot the server or is it dynamic across the board ?
I am trying to setup an AG on a cluster, I was able to define where I want my replica, but I need to setup the ip for the listener of that one
When I am adding the Ip at the listener I am getting the following message:
The Windows Server Failover Clustering (WSFC) resource control API returned error code 5057. The WSFC service may not be running or may not be accessible in its current state, or the specified arguments are invalid. For information about this error code, see "System Error Codes" in the Windows Development documentation.
The attempt to create the network name and IP address for the listener failed. The WSFC service may not be running or may be inaccessible in its current state, or the values provided for the network name and IP address may be incorrect. Check the state of the WSFC cluster and validate the network name and IP address with the network administrator. (Microsoft SQL Server, Error: 41009)
Browsing around I found this guide: [URL] ......
And I make sure that the cluster has permissions to "Read all properties", "Create Computer Objects", even to "Create all child" permissions
I also added those permissions to the account that starts sql at that cluster and I am logged as that and I am still getting the error....
hi i'm having this error on my application"cannot allocate more connection.connect pool is at maximum increase max pool size" the proble is when i do testing this error does not apply it only Appears when the application is been used by many people How can I resolve this? Thanks
I am sure I have seen in the past in a monitoring tool that PLE drops off to 0 whenever we do a backup. I was doing some reading around this however and found something that said backups use a different portion of memory external to the buffer pool (minmax settings).
Is this correct and how can I tell how much memory will be required for a backup?
When I fail an availability group between subnets, I am finding that the DNS entry in DNS is staying. So what happens is the Availablity Group listener has 2 records in DNS, one for each IP. This causes the App to timeout at times, since DNS will return either of the two IP's.
We are rolling out the use of Availability Group listeners to our SQL Server 2012 Environment which has a 2 node multi-subnet cluster. The Primary is R/W and the Secondary is a non-readable node that would be manually failed over to in a DR scenario
I have set up the AGL and asked the sysadmins to create a DNS record in both subnets with fixed IP's.
The issue I have having is that when I ask the app developers to connect to the databases using the AGL it is totally random whether the AGL resolves to the Primary or DR node - as a result that are having problems getting their apps to connect.
I was thinking of asking the sys admins to remove the DNS record in the DR subnet and then add it back in should we need to fail over - but I was thinking there must be a better way.
All of the books I have about Visual Basic 2005 Database Programming, gives examples of connecting to a database on a localhost computer. But what about the connection to a database on a sql server 2005 on a computer wich can only be reached via the internet ? Is that possible without using ASP.NET ?
My problem:
I have a desktop with a sqlserver 2005 database . This desktop is connected with the internet . The IP address is a dynamic IP address.
On my laptop is a ADO.NET 2.0 program that needs to be connected with the database on my desktop.
What kind of address do I have to specify in my connectionstring in order to get connected to the database on my desktop , which can only be reached via the internet ?
I'm I wright to suppose that in the case of a static IP address, all I have to do is put the IP address in the connectionstring in order to get connected with my desktop via the internet? Are there some changings to be made in the settings of the SQL SERVER 2005 on my desktop ? What about the security ?
On the other hand , because the address of my desktop is a dynamic IP address, how do I solve this problem.?
I've heard about a program DynDns that can solve the problem of the dynamic address. Can i use this program together with my ADO.NET program to solve the problem , and how do I specify in this case the address to the database on my desktop in the connectionstring?
Is there someone who has experience with that program and the problem I described here ?
I'M HAVING AN ISSUE, UNDERSTANDING, THE CONNECTION STRING. I WANT TO CONNECT TO AN INSTANCE OF SQLEXPRESS ON A REMOTE SERVER WITH A FIXED IP ADDRESS THE TCP PORT IS OPEN TO 1433 I OPENED THE PORT ON THE ROUTER AND THE WINDOWS 2003 FIREWALL
MY CODE IS AS FOLLOWS: S = "Provider=SQLNCLI;" S = S & "DATA SOURCE=44.66.777.888,1433SQLEXPRESS;" S = S & "INITIAL CATALOG=TESTDB;" S = S & "Persist Security Info=false;" S = S & "UID=TEST999;" S = S & "Pwd="TEST999888;" CnMgt.ConnectionString = S CnMgt.Open S
I'VE FOLLOWED THE STEPS OUTLINED IN ARTICLE 914277
CAN SOMEONE HELP? THANK YOU
PS. IF THE CLIENT IS LOCAL, I HAVE NO ISSUE OPENING THE DATABASE. I DO NEED TO OPEN THE DB FROM FROM CLIENTS.
I want to gather (and filter by) client ip address in an extended events session. So far, I have the sqlserver.login event added, but I can find no way to get client ip address added to the action or predicate.
I can filter by the pred_source field "session_nt_domain" or "nt_domain" but this is not always populated by all logins and also, this domain only lists machine name, such as FRED, as opposed to the full domain FRED.foo.bar.
Is it possible to gather login client ip address in an extended events session? Surely internal SQL Server processes have access to it because the login audit can populate client ip address.
I have a very interesting problem in T-SQL coding for which I can't figure out the solution. Actually there is a Line_1_Address column in our data warehouse address table which is being populated from various sources. Some sources have already concatenated house number + street address fields in the Line_1_Address column whereas one source has separated columns for both data fields.
Now I'm trying to extract data from this data warehouse table and I need to split the house number from street address and load it into separate columns in my destination table. In case there is no data for house number then I should load it as NULL.
The issue is that data in this Line_1_Address column is very inconsistent so I don't know which functions to use. Here is some sample data for your consideration:
Line_1_Address 101 E Commerce ST 120 E Commerce ST 2 Po Box 301 W. Bel Air Ave West Main Street, PO Box 1388
I have a query that I'm filtering using Customer ID, CustomerID = '12345', even though I need the query to filter that data, I don't need to see that column in my results. I tried removing it from my Select Distinct group but I'm guessing it needs to be there or the filter won't work(like I said, very green). Is there something that I can add to hide this column?
I need to pull all records from the Item table and then I need to populate the most recent OrderNo and O.DateCreated. I got this far but if there is a part in the item table that does not have an order against it, I do not get a value and my goal is to see any parts that have not been ordered in the last year. Something like this:
SELECT I.PartNumber, I.Description, I.DateCreated FROM item I CROSS APPLY (SELECT TOP 1 O.OrderNo, O.DateCreated FROM Orders O WHERE O.PartNumber = I.PartNumber ORDER BY O.DateCreated DESC) O PartNumberOrderNoO.DateCreated 1A1XXX 1CHXX1 1/8/2014 2A2XXX 1CHXX3 1/20/2014 3A3XXX NULL NULL 1B1XXX 2CHXX1 2/10/2014 2B2XXX 2CHXX3 2/22/2014 3B3XXX NULL NULL
I have a query which contains 12 left outer join. I remove some of the joins that don't have parameters. The result is coming same but usually when we remove joining it should take less exec time but for me it is taking more time. What could be the reason?
I wanted to remove an extra transaction log file that was no longer required, and ran the following against the database...
DBCC Shrinkfile (DB_Name_log2, Emptyfile); go alter database [Db_Name] remove file DB_Name_log2; go
I got a successful removal message. But if I go into the properties of the database, and click on files, it still shows up. Why is this and how can I get rid of it?
I have found a bunch of duplicate records in our housing database that ideally I need to delete.There are two tables that I need to remove data from ih_cml_log_entry and ih_cml_log_notes. There is no unique identifier between the tables for a log entry. So I have had to join on the person_ref, log_seq and the date/time of entry.How do I go about deleting the data - I've used the script below to identify what I need to delete -
SELECT * FROM ( select cml.person_ref, cml.open_date + open_time as 'datetime',cml.open_user,cml.log_type ,ROW_NUMBER() OVER (PARTITION BY cml.person_ref, cml.open_date + cml.open_time,cml.open_user,cml.log_type ORDER BY (SELECT 0)) AS RowNo ,n.note FROM ih_cml_log_entry cml
I usually do this through Access so I'm not too familiar with the string functions in SQL. My question is, how do you remove characters from the middle of a string?
Ex: String value is 10 characters long. The string value is X000001250. The end result should look like, X1250.
I've tried mixing/matching multiple string functions with no success. The only solution I have come up with removes ALL of the zeros, including the tailing zero. The goal is to only remove the consecutive zeroes in the middle of the string.
I have a varchar field which contains some Greek characters (α, β, γ, etc...) among the regular Latin characters. I need to replace these characters with a word (alpha, beta, gamma etc...). When I try to do this, I find that it is also replacing some of the Latin characters.
