I am a bit confused. I was told that backing up the TLog cleared out all the commited transactions which shrinks the log. Is this true, becuase I started with a 72 gig transaction log and the created a maint plan to back it up as a .trn. After this was successful the 72gig .ldf was still the same size. What am I doing wrong to get this log size down?
Thanks!
Is it possible to shrink Transaction Log file? If yes, how? Urgent matter please.
Regards,
Is it possible to shrink the size of a transaction log file in SQL 6.5. Normally in SQL 7.0 I use detach and reattach but this is not supported in 6.5. The log file for a 200Mb database is 749Mb with no unused space and no open transaction. Thanks
View 2 Replies View RelatedHi,
I have a t-log on one database which is 400mb when the database size is only 30mb. dbcc shrinkfile does not work and dbcc opentran shows no open transactions. When I tried to do a Backup log with truncate_only the following message displays:
The log was not truncated because records at the beginning of the log are pending replication. Ensure the Log Reader Agent is running or use sp_repldone to mark transactions as distributed.
The database in question is not a publisher and only receives 5 subscribed articles, none of which are changed very often. The database operates 24 x 7.
Does anyone have a solution to this dilemma?
Thank You
How can I reduce the size of transaction log of a database...?pls hel me...
View 2 Replies View RelatedHi Friends,I have tried almost everything but I cant seem to shrink thetransaction log.Executing DBCC SQLPERF(LOGSPACE)gives me this info:Database Log Size (MB) Log Space Used (%) StatusMY_eems 368.49219 16.034182 0I made a complete backup of the database and transaction log and thenexecuted this statement:DBCC SHRINKFILE (MYeems_log, 1)and this is the message I gotCannot shrink log file 2 (ghgeems_Log) because all logical log filesare in use.DbId FileId CurrentSize MinimumSize UsedPages EstimatedPages------ ------ ----------- ----------- ----------- --------------17 2 42880 34561 42880 34560(1 row(s) affected)DBCC execution completed. If DBCC printed error messages, contact yoursystem administrator.How can I get the transaction log to its minimum size?Any help will be appreciated,ThanksA.B
View 5 Replies View Related
I have 4 large sql dbs. All 4 have been trimmed down by deleted recs from the db, then shrinking. 3 out of the 4 shrunk successfully and the log files are much smaller than the data files. On the 4th the data file shrunk to 14G, but the log file stayed at 47G. I have tried truncating and then shrinking, but it never gets any smaller.
Any suggestions on why this particular one will not shrink?
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
Hi Everyone,
I have a SQLServer 7.0 conversion db. Data file is 89 mg. The log has grown into 238 mg. Db and log are backuped nightly. Optimization and integrity jobs run weekly. The transaction log keeps growing! Truncate log on checkpoint is on and autoshrink is on.
What else can I do to truncate my log?
LT
We have a user database that was initially allocated 90GB for data file, 30GB for transaction log file. We decided to shrink the data file to be 2GB, log file to be 1GB using 'DBCC SHRINKFILE'. The result of data file is 2GB as we expected. But log file is 5,764 MB no matter how many times we shrink it or run 'backup log with truncateonly' against it. Can this be something to do with how transaction log allocate its segments called virtual log files? Is 5GB the smallest unit of log segment that can be shrunked? Is there any way around this? We are in a production enviroment, and this is pretty urgent.
Thanks in advance.
Tung
For some reason (I'm sure it was my code) my transaction log segments grew to a huge size (>1 GB each). They are normally in the area of 150 MB each, so I wanted to shrink them back down. But I have one transaction log segment that won't shrink! I'm a relatively new administrator, but I've tried shrinking the database (which worked for all but one segment) and truncating the logs, I've tried issuing a CHECKPOINT, I've tried stopping and restarting SQL Server, but I can't get that last segment to shrink to a normal size. Any ideas?
Thanks,
Robin
Hi!
View 1 Replies View RelatedI have a database (sql server 7.0) that has some big unused space in the transaction log. I tried to shrink the transaction log, but it seems it is not working. I used the same procedures to successfully shrink the log file for database of SQL Server 2000.
Here are what I tried:
shrink database from the Enterprise Manager.
or
dbcc shrinkfile (Spoper_Log, 40)
backup log Spoper with truncate_only
Does anybody know how to shrink the transaction log in SQL Server 7? This is a production database and I can't afford to lose any data.
Today, I became an involuntary DBA until my company finds someone else. We have an SQL R2 DB that is mirrored that failed dur to the transaction log growing and filling up the disk. As a band aid remedy, I was able to add 20GB to the disk (it is a VM) and then I backed up the Transaction log and did select log_reuse_wait_desc from sys.databases where name = 'mydb' and the result showed that the backup was successful (NOTHING, I think was the result).
After this I was able to resume the mirror and everything has been running fine. What I need to do now is to shrink the Transaction log so that if it starts to grow again, I will get an alert and can avoid today's issue. From what I have read, I can just use DBCC SHRINKFILE [logname] after I do a backup and the changes will be reflected on the mirror as well. I have shrunk the T-log in non-mirrored servers before, just don't know if there are any key differences.
Is it possible to truncate Transaction Log and Shrink DATABASE while the database is being used by users or the database becomes unuvailable during this operations?
Thank you.
For a few days now I have a discussion with a colleague about shrinking the transaction log as a daily maintenance job on an OLTP database. The problem is I cant figure out a way to convince her she is doing something really wrong. Its not the first discussion.. Maintenance Plans.
She implemented this "solution" with a lot of customers as a solution against VLFs fragmentation and huge transaction log sizes. My thoughts about doing this is very clear and I have used the following arguments without success to convince her:
- To solve too many VLFs you have to focus on the actual size of the transaction log and the autogrowth settings in combination with regularly transaction log backups. Check the biggest transaction and modify the transaction log size based on this. Not use shrinking as a solution for solving many VLFs.
- Shrinking the transaction log file on a daily basis that is disk I/O intensive. When the transaction log file is too small for new transactions, the transaction log needs to grow and this will cause disk I/O, this can cause performance problems.
- It looks unprofessional.
These steps are used every morning at 6:00 AM and a transaction log backup is made every 30 minutes.
Step 1
DBCC SHRINKFILE (N'' , 0, TRUNCATEONLY);
go
Step 2
ALTER DATABASE
MODIFY FILE (NAME = N'', SIZE = 4098MB);
GO
My main purpose is making sure the customers have the best possible configuration and I cant accept this is being implemented. Are there any more arguments available for this issue?
I have a Customer running a database in a High Availability Group and I am not familiar with the set up... They have a transaction log that quadrupled in size during a data import and update which was generated by an external application. They have limited server space and would like to shrink the log again now as this import / update only happens once a year. The way this has always been dealt with in the past was by shrinking the DB and logs after the update.
Now however, when attempting to do a log or db shrink, an error message is generated which says that the log cannot be shrunk as the DB is in use as part of an Availability Group....
The more I search and try to read up on this subject, it looks like the DB has to be removed from the Availability Group before the log can be shrunk and then the Availability Group has to be re-created or restored in some way. Is there a simple solution to this conundrum?
My trancaction log is 25GB and my database file is 39GB. I justswitched to the 'Simple' recovery model from the 'Full' recovery model.When if ever can I expect the size of the transaction log to reduce insize? Is there anything else that I should do to aide with thereduction?Thanks,Peter
View 5 Replies View RelatedWe have a SQL server 2012 database with size 200mb and Transaction Log has gone up to 34GB.
We have SQL server Mirror is enabled and principal database is running with Full Recovery Model.
How can I truncate/Shrink Log files? Will it impact on existing mirroring setup? I am very much new to SQL server.
I am trying to reorganise the log files on a server, (long story short they are fragmented so I want to shrink and reset the initial size and growth) and I am unable to shrink them. When I run the following:
use test
DBCC SHRINKFILE(test_log, TRUNCATEONLY)
--or
use
DBCC SHRINKFILE(test_log,2, TRUNCATEONLY)
I get the following message:
Msg 8985, Level 16, State 1, Line 1
Could not locate file 'test_log' for database 'test' in sys.database_files. The file either does not exist, or was dropped.
I get this message for every database on the server. I got the logical name of the file using sp_helpfile and have checked it against sys.masterfiles, sys.database_files and sys.sysaltfiles, all match up and confirm the name 'test_log'.
I rebooted the server last night and was able to shrink the first couple of .ldf's I tried so I presumed it was fixed. This morning when I try again i get the sanme error, I don't see anything in the SQL server or system logs that indicates a change.
I am able to add new log files and remove log files, however if I add a new log file (test_log2) and then try and truncate that file I get the same error.
We are using SQL Server 2005 (SP1). I have created a maintenance plan that backs up up the datebase every night. The problem is that the transaction log is continuing to grow. I have been told that a full backup will automatically truncate and shrink the transaction log. However, this is not happening. How can I truncate and shrink the transaction log after a full backup as part of our maintenance plan. Thank you.
View 29 Replies View RelatedHi,
I am in the process of migrating databases from a SQL Server 2000 server to a 2005 server.
I have taken full backups and restored without recovery on the 2005 server. I now need to take transaction log backups and restore with recovery tonight to complete the operation. My question is this:
Some of the transaction logs have grown very large. Is it safe practice to perform a backup tran with truncate only and then run dbcc shrinkfile to reduce the size before I back up? This would make the process much quicker.
Thanks.
I'm running full recovery mode and doing log shipping so changing to simple mode is not an option.
I'm running BACKUP LOG right before and when I check it says my log is 99% free (on a 180GB log).
When I do DBCC LOGINFO('dbname') right before and after I see a dozen entries and they are all over the file and not just at the starting offset areas. The BACKUP LOG doesn't clean out the file completely.
Is there any explanation for this? Even though I'm doing this at off hours, is it possible that someone on the site in that split second is putting new entries in the log? Why are they spread out though? If they just put entries at the beginning I could shrink the file to a normal size still.
Hi,
Is it possible to shrink a DB thru .NET.
Presently I have to go into the SQL server 2005 studio to shrink the DB.
To shrik the DB I right click on the DB and select all tasks -> Shrink -> DB
How would I do this thru SQL codse?
I would like to do it thru my VB.NET code as you would compact an ACCESS DB.
The reason I want to set it thru my code is :
The clients that use my program have no clue of
SQL or for that matter computer itself.
I just want them to click on a button on my application which should
do the shrinking.
Similarly for backup of the DB.
Tnx
I am getting an error about "Cannot perform a shrinkfile operation inside a user transaction", but I don't have a shrinkfile command in my procedure. Does SQL hang on to that command if it was received earlier in a different procedure?
View 5 Replies View RelatedI need a script to Backup & Shrink tempdb.
namesize
tempdev1024
templog64
tempdev21024
tempdev31024
tempdev41024
tempdev51024
tempdev61024
tempdev71024
tempdev81024
I can't believe how many tempdb's there are?
I would like to know what happens if i shrink the database with truncate only option and do a full backup or transaction log backup ? are the full backup or transaction log backup valid? I know that the performance of the database is bad if i shrink the database. What happens to full backup or transaction log backups?
View 9 Replies View RelatedHelp,I have a database that has a data file of 2GB and a log file of 31GB.In enterprise manager, when I choose shrink it says there is 30GB ofunused space. When I shrink the database, it does not shrink,(however it says it has completed).I've done a complete backup, tried shrink again, no dice. I thenbacked up the database (which the backup was 1.9GB), deleted thedatabase and made a new database with 2,048MB for the data and samefor the log file.When I restore, the log file jumps up to 31GB again. When I check thespace when I use the shrink, it again says I have 30GB of unusedspace.How on earth do I get this file to shrink?I've been able to shrink other databases, but not this one.TIARob
View 1 Replies View RelatedWe take a full backup in the early morning and hourly transaction log back during the working hours for one database in the production server. The application team made certain changes to the design of the said database in their development server. The backup from the development server was restored to the production server during working hours. After the restoration should we take a full backup before next transactional logbackup? Would the transactional log backup with out a full backup after the restoration of a database be valid?
View 5 Replies View RelatedHello, everyone:
I just heard that for restore purpose, ths full backup and transaction log backup should be from one maintenance plan. Otherwise transaction log backup files cannot be restored after restoring full backup files.
Is it true? Can anyone offer official documents?
In my system, full and transaction backups are from one maintenance plan. Restores are doing fine. I am not sure that ideal is true or not.
Thanks
ZYT
what is the differences between a differenctial backup and transaction log backup?
View 1 Replies View RelatedI neglected to backup the transaction log as part of the process of backing up the database. Now i only have the backup file for the database and no transaction log backup. When i try to do a restore on the database, i get the error on a "tail log missing" message (which i'm assuming is that it's looking for the t-log backup?).
Is it possible to restore or even restore to a new database? I'm only looking to retreive data from 2 tables within the backup file.
Thanks!
SQL Server 2005 on Windows 2003 Server x64.
Hi
I have a full backup and transaction log backup strategy for my test server.
My transaction log backup is failing as some user must have run some nonlogged operation. Is there any way to find out what is causing transaction log backup to fail?
Any hint would be appreciated.