SQL Server Admin 2014 :: Where To Find Availability Group Fail Over Occurrences
Nov 14, 2014Where can I find dates and times to when an availability group was moved outside of the SQL error log?
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SQL Server Admin 2014 :: Separate One Availability Group To Several AVs?
Jul 3, 2015We have 4 servers : Server 1 , Server 2 and HA , DR servers.
I designed 2 Plans to get HA support for my databases .
Which of them are better , And is there any problem in my design ?
SQL Server Admin 2014 :: Notification On Availability Group Failover
Nov 10, 2014Is there any way to trigger an event (ie. call a procedure/job/etc.) when/if an AG fails over?
Not looking to use agent alerts.
SQL Server Admin 2014 :: Manual Failover Availability Group
Dec 24, 2014Recently after turning on trace I restarted the sql services on a box which is configured for automatic failover availability groups. The ag has not failed over to other node. The other node was in resolving state. When the restarted server is back, the AG went back to that server. I checked the sys.availability groups field for failover property failure condition level, it's set to 1 which means service restarts should initiate the failover.
View 3 Replies View RelatedSQL Server Admin 2014 :: AlwaysOn Availability Group Configuration
Jun 17, 2015What I asked for: Three Windows Server 2012 R2 machines with independent storage running a SQL Server 2014 AlwaysOn Availability Group. DB1 would be the primary, DB2 would be a synchronous replica, and DB3 would be a remote asynchronous replica.
What I was given: a two-node Windows Server 2012 R2 WSFC to run SQL Server 2014 Enterprise with shared storage and a third (remote) Windows Server 2012 R2 machine with independent storage, also with SQL Server 2014 Enterprise, to host an AlwaysOn Availability Groups asynchronous replica.
DB1 and DB2 (as Cluster1) share an E: drive. The remote DB3 has its own E: drive. Initially, DB3’s E: drive was claimed as a cluster resource and I couldn’t even see it. I’ve had several ugly days trying to make this work and have temporarily given up, installing DB3 as a standalone SQL Server that is no longer part of the WSFC and pointing everything towards that (it was originally a third node in the WSFC).
Is it possible to create an AlwaysOn Availability Group with nested clusters (i.e. create the AOAG with Cluster1 and DB3 and somehow ignore the individual nodes that comprise Cluster1)?
SQL Server Admin 2014 :: Exit From Not Synchronizing Primary Database In Availability Group
Jan 27, 2015I Create an availibility Group with a primary and a secondary. (For test)
Then run Planed Failover.
Switched to secondary. That's ok.
After that I update some tables on secondary (That now is primary)
I Run Again Planed Failover on server 2.
Switched. OK
But primary database Get (Not synchronizing) Status.
And in primary I don't have that updates.
How to sync these databases and exit from Not synchronizing.
SQL Server Admin 2014 :: Disconnected From Listener In Availability Group (When Primary Failed)
Jun 27, 2015I 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 ?
SQL Server Admin 2014 :: Availability Group Handshaking Fails After Network Outage
Aug 14, 2015I'm running a primary and secondary on sql server 2012 enterprise edition on windows server 2012, and it runs fine except when a network outage occurs.
Then the handshaking keeps failing, the databases on the replica show as not synchronizing and the only way to fix this is to reboot both primary and secondary.
We keep getting 3520's, etc. on the DR error log
How to eliminate all these prod reboots?
I increased query connection timeouts to 60, but saw no change.
SQL Server Admin 2014 :: CDC And AlwaysOn Availability Groups
Apr 2, 2015The MSDN doc makes it sound like after a failover of the primary, the CDC data won't "keep working" on the secondary unless you "To allow the logreader to proceed further and still have disaster recovery capacity, remove the original primary replica from the availability group using ALTER AVAILABITY GROUP <group_name> REMOVE REPLICA. Then add a new secondary replica to the availability group."
We have a few CDC tracked tables that we use and the general idea of AlwaysOn I thought was to minimize all the overhead and let things "just work" so your apps just connect and the listener re-routes everything where it needs to go.
It looks like to get this working properly an automated job /trigger would have to wait for a failover event and then kick off tasks to remove and re-add the replica and perhaps start up the CDC job on the secondary?
SQL Server Admin 2014 :: High Availability - Job Error
Aug 18, 2015I am trying to create a job that runs against my High Availability listener server.
It is a fairly simple SQL statement in the job - execute tsql.
When I try and run the job I get the error:
Executed as user: NT SERVICESQLAgent$SQL2014A. The target database ('BB_Prod') is in an availability group and is currently accessible for connections when the application intent is set to read only. For more information about application intent, see SQL Server Books Online. [SQLSTATE 42000] (Error 978). The step failed.
I thought there was a way to run a select statement as a job against the listener? The tsql step is only a select.
Is there a way to pass in the application intent = readonly as part of my SQL statement?
SQL Server Admin 2014 :: How Does Security Works Between Availability Groups
May 21, 2014how does security works between availability groups.
ex if i create an object and grant permissions to a user will that be replicated to secondary replica .
SQL Server Admin 2014 :: Load Balancing With Availability Groups
Aug 28, 2014We are having a conversation at work and the subject of load balancing with SQL came up. Right now we are running SQL Server 2014 on four (4) machines. I am using a AlwaysOn with Availability Groups (AG). Now I know that we can scale out the reading in AG by allowing the secondary serves to receive reads.
Is there a way to be able to do this with writes? Can I have in essences 2 masters that some how reconcile with each other? We are expecting a huge amount of writes in the near future and we need a way for SQL to handle the amount of traffic we are expecting with out any issues.
I explored the possibility of Peer - to - Peer replication; however, it seems that it would be more work if we are constantly making updates to the database scheme.
SQL Server Admin 2014 :: Backup Jobs On Availability Groups?
Feb 11, 2015we currently use Backup Scripts from Ola Hallengren, It Says Full (non copy-only) and differential backups are performed on the primary replica. Full(Copy-only) backups and transaction log backups are performed on the preferred replica.
we currently do FULL(COPY_ONLY) Backup everyday and LOG Backups for every 15 min, is there any performance benefit on running the FULL (non copy-only) on the preferred replica .
SQL Server Admin 2014 :: High Availability Index Rebuilds
Jul 9, 2015I have a situation where I need to rebuild indexes on a large DB (500G).
When I do a test run of the rebuilds in my test environment it uses 100G of space - which is fine with me.
When I do a rebuild in my High Availability environment - same DB, same script - it eats up over 600G of space and fills the volume.
What can I do without removing my DB from H/A to rebuild the indexes?
SQL Server Admin 2014 :: Availability Groups - Adding One More Listener
Sep 1, 2015We 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?
SQL Server Admin 2014 :: Replication On AlwaysOn Availability Groups
Sep 15, 2015I am planning to have AlwaysON Availability Groups setup between Server 1 and Server 2
Server 1 -->Publisher-->2014 SQL Enterprise edition-->Windows Std 2012 --> Always on Primary Replica
Server 2 -->Publisher(when DR happens)-->2014 SQL Enterprise edition-->Windows Std 2012 --> Secondary Primary
Server 4 as Subscriber
Server X as Remote Distributor ..
If i create Publications on Server1 (primary replica) to subscriber 4 servcer, will the publication be created automatically in Secondary Replica Server2 ? or do i have to create manullay using GUI/T Sql on Both Servers?
SQL Server Admin 2014 :: Database Backups And AlwaysOn Availability Groups
Oct 16, 2014This is my first deployment of an always on availability group for SQL 2014 and I'm trying to get my custom backup procedure to handle all databases appropriately depending on the primary group. Basiscally I want the system databases and all databases that don't participate in the availability group to be backed up on both nodes and those that do participate backed up ONLY on the primary server. I've looked at the sys.fn_hadr_backup_is_preferred_replica funcation, but would like to only have to test for a single databases existance in the availability group. If the one database is in the group, only backup the system databases and those that don't participate, otherwise backup everydatabase. This would be the case for both full backups and transaction logs.
View 1 Replies View RelatedSQL Server Admin 2014 :: Disabling MSDTC For High Availability AlwaysOn
Nov 3, 2015We are looking at going down the High Availability Always On route. However we have some concerns around the lack of support for MSDTC. In short we are concerned that developers may introduce functionality either on purpose or by mistake that uses the or escalates the Query’s to the MSTDTC. As this could result in database splitting.
Understand that this will be a moot point in SQL 2016 but for 20122014 is it possible to disable the MSDTC to protect against this and run High Availability Always On. ? Does it just need to be disabled on the SQL Server or does it need to be done on the application server ?
SQL Server Admin 2014 :: User Database Integrity Check Fail
Mar 8, 2015I've been running the Ola Hallengren maintenance script for the last five months without missing a beat. Today I find an error stating the UserDatabase Integrity check job failed last night. This is running on SQL Server 2014 BI edition w/64 Gigs.
I ran a DBCC CHECKDB on each database manually and all worked until I tried it on the biggest one that is about 18 gbs. It just keeps running and I eventually stopped it so I'm guessing it is memory, but doesn't make sense considering it has 64 gbs. I have it set to 64/4 max / min. Again, this was never an issue until last night.I've been looking up all morning, but not seeing much on this error "The operating system returned error 1453"?
SQL Server Admin 2014 :: Determine Which Server Is Currently Active For Availability Groups
Nov 25, 2014I want two write a small script to determine which is the currently active (primary) server in the AG.
Right now, I see that using SELECT * FROM SYS.dm_hadr_availability_replica_states I can determine the role. However, when the server goes down and switches to the secondary node, I don't believe that the role changes (or does it?). How do I determine which is the active node?
SQL Server Admin 2014 :: SSAS Cube Processing Fail With Communication Link Failure Error
Feb 4, 2015we have our cubes in Server A and SQL DB resides on Server B (we are on SQL 2014), from last couple of days are cube started failing due to below error:
OLE DB or ODBC error: Protocol error in TDS stream; HY000; Protocol error in TDS stream; HY000; Protocol error in TDS stream; HY000; Communication link failure; 08S01; TCP Provider: An existing connection was forcibly closed by the remote host.
; 08S01
I have been going through some blogs to understand the error but don't find any specific yet.
Recovery :: Fail To Create Availability Group Listener With Multiple Subnets
Oct 28, 2015I am setting up a new pair of SQL 2014 enterprise servers in HA using Availability Groups. One of the servers is located here in our local datacenter (10.0.1.x) and the other SQL server is in our remote datacenter(172.16.1.x). I was able to setup the Windows Failover Custer without much issue. I setup the AG but when I try to setup the listener. I get the following error. I have setup an IP for both networks on the listener. I have confirmed that there is not any DNS records created for AG listener name. But I still get this error.
View 6 Replies View RelatedSQL Server Admin 2014 :: Find All The Inactive Windows Logins?
Jan 30, 2014How to query in SQL to retrieve all the disabled Windows Users which are available as records(only) in the SQL Server ?
View 9 Replies View RelatedSQL Server Admin 2014 :: Stored Procedure - Find The Cause For Blocking
Sep 23, 2015I was trying to create stored proc
[code="create procedure dbo.sp_table1
@idint
as
begin
updatetable1
setisarchived = 1,
[Code] ....
But the query was continuously blocking the query below
updatetable1
setisarchived = 1,
modtime = getdate()
whereid = @id
andisarchived = 0
I was not sure, why the create procedure statement is blocking the update statement.
SQL Server Admin 2014 :: How To Find Memory Usage By Index
Oct 4, 2015I want to create a lot of index for my database for performance.
But I need find memory usage by indexes.
How to find memory usage by index in sql server?
SQL Server Admin 2014 :: Group Policy User Denied Access
Sep 15, 2014I have a user, who is trying log into the server, but everytime he gets this error saying something about the Group policy denies him access.
This user needs access and i'm trying to understand how to grant it to him.
I have been looking into how i can access the group policy editor, but the farthest i can get is the Local group policy editor. How do i make sure this specific user has access?
SQL Server Admin 2014 :: How To Find Used Space In Memory Optimized Filegroup
Jun 11, 2015How do i find Total allocated space and used space of a memory optimized filegroup?
use memory_optimized_db
Go
select (SUM(size)*8.0)/1024.0 as Space,
FILEGROUP_NAME ( data_space_id ) , type_desc from sys.database_files
group by data_space_id,type_desc;
above query gives "current used size of the container " of memory optimized file group but doesn't give Total space detail.
SQL Server Admin 2014 :: Replication Could Not Find Or Execute Stored Procedures
Jul 20, 2015Replication-Replication Distribution Subsystem: agent PRODDATA6 failed. Could not find stored procedure 'sp_MSdel_dboActiveTask_msrepl_ccs'.
Replication-Replication Transaction-Log Reader Subsystem: agent PRODDATA6. The process could not execute 'sp_replcmds' on 'PRODDATA6'.
Replication-Replication Distribution Subsystem: agent PRODDATA6. Could not find stored procedure 'sp_MSupd_dboActiveTask'.
Looks like these sp's got deleted?
SQL Server Admin 2014 :: Script To Find Nested Views In A Database
Oct 7, 2015Any easy way to find if there are any nested views existing in the database?...using SQL server 2014...
View 1 Replies View RelatedSQL Server Admin 2014 :: Find Report Server Database Name?
May 8, 2015Is there any way to find Report server database name using T-SQL?
I have SQL server report server instance and authentication credentials.
I can use sys.databases but in case of user had changed ReportDb name at the time of configuration this approach will not work then How I can find?
SQL Server Admin 2014 :: Re-balancing Blob And Lob Data In Multiple Files On Primary File Group
May 7, 2014A little background on what I am trying to achieve first. We are moving to Azure virtual machines and we will have 8 disks on the SQL Server box. I am adding more files to the primary file group and each file will go on its own drive. I am then rebalancing data across these files by rebuilding all of the indexes on the tables which is working fine. No problems so far all is good.
I now have an additional problem. If there is a lob or blob column on the table, rebuilding the clustered index and all the non clustered indexes doesn't rebalance the blob or lob data across the disks such as it does with in row data.
I cannot find any articles on rebalancing lob or blob data because all the articles say to move to a new file group. I do not want a new file group, I just want to use the primary file group where the data already resides, and just redistribute it evenly in the same way that I can in row data which is working fine.
One solution I thought about was to BCP data out of the table, truncate the table and then BCP back into the table which I imagine would have the desired effect of distributing the data evenly over the files.
Recovery :: Migrating Existing Availability Group To New Datacenter Availability Group
Nov 20, 2015need to migrate a cluster with an AG dtabases to new data center cluster with AG.
I was wondering if is possible to do mirroring on top of the AG configuration? or what other options could be to migrate a cluster that has 3 nodes and setup the ag databases to a new datacenter.
SQL Server Admin 2014 :: Creating Additional Data File For A Particular File Group?
Jul 6, 2015For a database, we have 4 data files in a particular file group and the file sizes are almost 70 GB each.
Do I come across any performance issues if I create/pre-allocate an additional data file in the same file group so that the existing files don't grow too much?