SQL 2012 :: Transaction Logs Not Backed Up On AGs Although Flagged As Successful
May 13, 2014
We use AlwaysOn availability groups, which has 2 SQL nodes configured (version: 11.0.3373.0), my full and differential backups are working for all my databases, however I am unable to perform any LOG backups.
I have double checked my Availability Group settings, and the backup preferences is set to: 'Prefer Secondary'
I've tried creating a maintenance job as well as using Ola Hallengren's maintenancescript job to back them up, but nothing is written to the drive. All jobs return successful every time, and take less then 3 seconds to run. There are no events being written in the SQL error log or event log.
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Jan 19, 2001
Hi all,
I have set up a maintenance plan to backup my databases but when I view the maintenance plan history the transaction log backup steps have a success tick but a message saying :
"Backup can not be performed on this database. This sub task is ignored"
I have looked in my backup directory and only see *.BAK files and no *.TRN.
The transaction logs are supposed to back up at 1AM and the databases at 2AM
All my databases being backed up have the truncate log on checkpoint option set. Is this best practise according to my backup schedule ?
Help !!!!
Regards,
Tim
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Aug 17, 2006
Coming from a (mostly) Oracle shop, I am unclear how SS transaction logswork as far as up to point of failure recovery goes.I have the few MSSQL databases I look after in full recovery mode, and Iset up maintenance plans to back these up online on a daily basis. Inthe research I did it was recommended backing up the transaction logs aswell on a frequent basis to ensure recovery to POF or point in time.I had assumed that they work like Oracles archive logs, in that oncethey are full they are archived to disk in case they are needed, toduplex destinations if need be. Does SS do this, or do I need to bebacking up transaction logs on an hourly (or shorter) basis? In lookingat enterprise manager I see that it does not look like the transactionlogs are archived anywhere, but overwritten once filled up, similar toOracle noarchivelog mode, in that if you lose your online redo logs oranyone of them has recycled since your last backup, then you can onlyrecover to the last good backup.Is this a correct assumption? Should I be backing up transaction logshourly to make sure I can have PIT or POF recovery?thanksTG
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Oct 4, 2007
Hello,
how can i view the content of a archived (backed up) transaction log?
DBCC LOG only works with online logs.
Thx for your answer
Best regards,
Stefan Ridinger
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Feb 24, 2015
I backed up my transaction log file using this:
BACKUP LOG iTest2_AELetters TO DISK = N'nul'(yes I know this breaks the log chain - it's expected in this intance)
But after I run it my t log is exact same size. I have refreshed many times.
I am using SQL Always On on this DB.
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Mar 28, 2014
I am doing some general housekeeping for a couple of our SQL boxes in the Development environment. All the databases are set to Simple recovery mode. No need in anything else for these boxes. I have a database on all the boxes named "DatabaseMaintenance" Keeps things like all the sprocs for any type of database maintenance, etc....
I would like to schedule a single sproc that is located in the DatabaseMaintenance database to shrink the Transaction logs on a set schedule. They sometimes grow quite large while testing and developing. The thing that I cannot seem to get around, is when using the ShrinkFile command, one must use the Log Name. If this code is in a sproc that is located in the DatabaseMaintenance database, it will fail when attempting to call out to a different database. Because the Log does not exist on the database that the sproc is located.
How can I get around this small dilemma? There are only about 10 databases per box. To a point we really do not care what happens to them. They are on a Full backup schedule daily, just to keep the objects. As I stated previously, the logs will still grow huge at times while pumping data.
Is there a way to create a piece of code that will run against each database on the server, and be stored in a single database? Other than the system databases of course.
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Nov 28, 2001
I have a Mantenance Plan running on my Production Server.
Each job has one step.
-Optimization (each week)
-Integrity Checks (each week)
-T-Log Backups (each hour)
-Full Back up (once a day)
The Job is saying the last three are failing but niether the SQL Server Logs or MS Application Log are reporting a success or faluire. "write to windows application log on faluire" is set for all of them. The backups are occuring, as the files are in thier destination.
Anyone experience this before? If so any advise?
Thanks,
Matt
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Jul 23, 2005
Hello All,The setting is SQL server 7, on Windows NT.If the distributor can not access the log on the publisher database ( butsubscribers are not deleted yet), will the full backup of the publisherdatabase truncate the transaction log? My guess is, it will not truncate thelog.Can any one confirm please?Thanks,Mokles
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Dec 7, 2011
After a successful transaction (after committing), I found that i sent wrong records of one the column (wrongly updated). How do I get back my initial stage? I mean, how do I get back all the previous results? Is there a way to retrieve my previous data which were before committing a transaction?
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Feb 2, 2015
I recently attempted to change the password of the sa login. There were no issues while updating the password neither did I get an error when I logged in as sa. Everything appeared to connect and I was able to query a database. However, an error was logged (error 18456 severity 14 state 8) as though I did not log in successfully. Even though I can connect successfully, I don't like having these misleading errors in the SQL Server Log.
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Apr 3, 2014
Our backups by default go to a network location, but I'd like to modify our maintenance plans to backup to an alternative location if the primary location isn't available. I've setup two Backup Database Tasks where the second one runs only if the first one Fails, and if the second one runs (on first one's failure) it then sends a notification to me so I know this occurred.
The Plan is running as expected, when I simulate a bad path in the first Backup Task the second one runs and the notification is sent, but the Job shows failure. I'd like to show the job as Successful when this occurs since I'm handling the issue and notification within the Plan, but I'm unable to find out how. I've set FailParentOnFailure to False on the Plan and I've changed the MaximumErrorCount to 2 with the assumption that this would work, but neither didn't.
Also I'm running into this in both SQL 2008 and SQL 2012.
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Apr 20, 2015
I am setting up Availability Groups and I want to use the secondary replica to perform the full copy_only backups to reduce the load on the primary replica.But what is the best way to check for successful full backups on Availability Group databases?
Previously I could check the system table msdb.dbo.backupset but this is not available for copy_only backups.So I wonder how people are monitoring that their full backups have been successful?
Do you just check that the SQL Agent job that runs the backup was successful?
Or do you search the SQL Server Error Log for entries like "Database backed up. Database: xxx" where database xxx is in an Availability Group?
Or is there a better method?
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Apr 24, 2002
What is the best way to clear the transaction logs. My backup job each night is ending because it says it is running out of disk space and I need to clear up the transaction logs. Any help is appreciated. I see many different options (trucate option, auto shrink, etc.), just need some assistance tosome more specific best approaches. Thanks
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Aug 13, 2001
Im having issues truncating my transaction logs. I have logs in excess of 40 gigs. All the info in the BOL is very vague. Any assistance would be apreciated.
Regards
SeTi Ni
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Jun 22, 2000
When we backup the transaction log,will it truncate the log or it will grow from there?Truncate log on check point is desabled.
Thanks!
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Aug 30, 2000
to take the transaction log back up regularly I should have truncate log on check point false. If I do so then how will I truncate the log.
regards,
Renu
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Aug 20, 1998
I am trying to import records via bcp (about 1,500,000 records) and I keep running out of disk space. Is there any way to limit or do away with the transaction log (and still be able to import)?
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Dec 14, 1999
how do i decrease the transaction log example 500mb to 100mb, can you help me with the syntax pls!!
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Sep 2, 2004
I need to move transaction logs to a different drive and am looking for a way to do it without detaching the db.
Can I create a second transaction log file for the DB and then delete the original log file?
What is the best way to do this for db's that are being replicated?
Thanks,
Ken Nicholson
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Jun 13, 2002
I need to seperate my SMS data files and transaction logs onto two seperate drives. Can anyone assist me with this?
thanks...
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Aug 2, 2004
HELP!!!!
When I look at the Database maintience plan history entry for backup I have a message that reads: "Backup can not be performed on this database. This sub task is ignored".
Have anyone come across this error before?? As part of the Maintenance plan some transaction log are being backup and some aren't instead they receive the message above.
Thanks
Lystra
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Nov 19, 2004
Has anyone ever had the problem of the IT department not backing up thier transaction logs simply because they didnt find it necessary??
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Jan 8, 2004
i have several sql servers doing maintenance plans and backing up the transaction logs to tape. unfortunately it seems that the server keeps adding the transaction logs to the same tape, without overwriting them. Nowadays a transaction log backup to disk takes 2 minutes but when done to tape it is taking up 1hr54minutes. What can i do so that the tape is automatically initialised without having to do it manually... Thanks
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Apr 9, 2008
i was wondering if smeone could give me a breif over view how far back do these go
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Jun 11, 2008
HI All,
Is this is a good idea or not?
If i attached my SQL Server to SAN only for DATA and LOG (Ldf) drives
through the FC. then we put *.bak and *.trn on to local disk RAID 1 drive?
Any performance isues?
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Dec 7, 2007
Is there a way to view the transactions from a .TRN transaction log file? If so can I overwrite some of the transactions on the file and then restore from it? I am just curious.
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Mar 11, 2007
Hi, I know just about nothing about SQL Server. I am getting this error:The log file for database 'my_database' is full. Back up the transaction logfor the database to free up some log space.I can't access the transaction logs to back them up. I am told that my ISP'stech support should have it set up to shrink those logs automatically everyso often. Is that true?Why are they needed? Up till Monday, the logs are just of our getting SQLServer set up, so couldn't the logs just be deleted? Most of my site can'trun with this problem.I'd appreciate any enlightenment anyone can give me!Thanks, Jill
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Jul 20, 2005
This seems like it'd be a really stupid question, but for the life of me Ihaven't been able to find an answer that works....I have a database that's approximately 400MB when shrunk... and thetransaction logs are at about 4.8GB when shrunk... I can't seem to get thetransaction log any smaller, no what I try. How can I get the log downbelow 1GB and keep it there? I've only got an 18GB hard drive and I need torun 2 copies of this database.-steve
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Jan 8, 2008
Hello,
I am trying to figure out the time a certain store procedure was executed. I know the SP's name and approximetly the time it was executed. Is this possible to do?
Honestly, i am not sure if SQL server 2005 is smart enough to keep track of commited transaction on the server.
Any suggestins?
Thanks
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Jun 5, 2002
I have seen quite a few people post this type of problem, but I am finding few solutions. Your advice and/or experiences are greatly appreciated.
Here's my scenario:
Environment: Windows NT 4.0 SP 6, SQL 7.0 (set up for Transactional Replication)
Problem: We have several remote dB machines configured for full recovery. On these machines are several dB's that are capturing aprox. 280 data points per second per unit. (Each dB represents one unit, and we have 21 units) No problem here. The problem is the transaction logs, that obviously grow profusely, will not SHRINK after, backups, dbcc commands and TSQL has been issued in failed attempts to shrink the logs. (in other words we've tried everything)
My questions are:
1. Because we are replicating, is it absolutely necessary to configure dB's for FULL recovery? How do I check in 7.0 if the dB is certainly in FULL vs. SIMPLE recovery mode?
2. I work with SQL 2000 and shrinking files is no problem. How can we shrink these log files in SQL 7.0?
It is rather urgent I find a solution as we are running out of hard drive space on our remote machines. Please help :-(
Christine
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Jun 7, 2001
I am having trouble Truncating a Transaction Log. I`ve tried everything in Book Online.
I`ve backed up the database, I`ve tried DBCC SHRINKFILE, DBCC SHRINKDATABASE, BACKUP LOG TRUNCATE_ONLY ...etc, but it will not shrink. Any suggestions ? Thanks.
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May 4, 2000
Currently, my databases and their corresponding transaction logs are all on the same disk array. I finally was able to acquire a seperate disk, specifically to seperate the logs, in case of failure, etc.
Now, I need to figure out how to go about moving the tansaction logs off the current disk array and on to the new disk.
In Enterprise Manager, I brought up "Properties" for the first database, and went to the "Transaction Log" tab. Clicked on the "browse" or "..." button in the location field and got the following message:
"A transaction log file's physical name cannot be changed once the transaction log file has been created". :(
I have been looking through Books On Line, but have been unable to find anything helpful yet.
Can anyone help me figure out how to go about moving a transaction log's location? There has to be some way.
Even if it involves shutting down the server, altering system tables, etc. I need to get these moved.
Your help is appreciated. Thanks.
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Jun 15, 2000
Is it possible to move .ldf's to another drive. For example I would like to move a database transaction log file from C:mssql7data to D:mssql7logs.
How can this be done?
TIA!
JJ
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