Transaction log is a list/history of modification executed by a database management system to guarantee ACID properties over crashes or hardware failures.
2
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1answer
41 views
Can I decrypt TDE transaction log files for use with 3rd party software?
Is there a way to decrypt TDE log files on disk for use with 3rd party software? I have the original key and certificates. I am trying to use the transaction files with a 3rd party tool in order to ...
1
vote
2answers
87 views
Missing or lost transaction and no errors to show what went wrong
I have 2 missing records in SQL Server and I am trying to identify the problem that caused this issue.
New records are inserted using a stored procedure, which will return an error code to the ...
6
votes
2answers
110 views
SQL Server 2012 Simple Recovery Model with LOG_BACKUP log_reuse_wait_desc
While I'm doing my own investigation, does anyone know why a database in SIMPLE recovery model has a LOG_BACKUP for the log_reuse_wait_desc?
SQL Server 2012 SP1. No replication, no mirroring, no log ...
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vote
4answers
89 views
Simple model database transaction log full 'CHECKPOINT'
I have a SQL Server 2012 SP1 database which has a problem that the transaction log is full. It consists of a single data file and a single log file, both about 800MB.
I had 5GB free disk space, and ...
4
votes
1answer
79 views
When performing a cross-database transaction, in which transaction log(s) is the information stored?
Given the following snippet:
-- error checking omitted for brevity
begin tran
exec database1..my_stored_procedure
exec database2..my_other_stored_procedure
if (@@error <> 0)
rollback
...
4
votes
1answer
47 views
Log file growth issues
We're consolidating data from a bunch of databases into four reporting databases each night.
Because the entire dataset is imported each night we do not need to be able to restore the data to a point ...
1
vote
4answers
97 views
Shrinking the log file does not reduce size
I have a database which had mdf size of 350 MB and ldf size 4.9 GB
When i try to shrink the log file it's not shrinking. I know shrinking a database is not good and it should not be done. But still i ...
3
votes
1answer
58 views
Does creating / updating statistics have an impact on the transaction log?
Does creating or updating statistics, assuming on a large table, create significant (or at all) transaction log churn? I would think not as it does not change the underlying data or structure.
If it ...
6
votes
1answer
95 views
Can I shrink the transaction log file on a mirror database?
This is a followup question to a previous question about why I couldn't shrink the log file on the principal database.
To make a long story short, I setup database mirroring but forgot to make sure ...
5
votes
1answer
130 views
How do I shrink the physical Transaction Log file when it's the principal in a mirror?
We setup database mirroring over the weekend, and forgot to re-enable the job that backs up the transaction logs. When I came in this morning, the transaction log had ballooned to 58GB, and was taking ...
3
votes
2answers
60 views
Time to apply transaction logs: does it matter how many logs?
When restoring from a backup in SQL Server, the procedure is to restore the .bak file and then apply any .trn files since the last full backup.
Does it make a difference how many .trn files there ...
1
vote
2answers
143 views
Reducing high VLF count
I have been using Brent Ozar's sp_blitz script to review our database setup and have found that the VLF count is high (13562!) on the primary DB since changing to Full recovery model.
I ran a full ...
5
votes
1answer
66 views
When REBUILDing indexes on SQL Server, what bearing does tempdb & LOG disk speed have?
Say I have the a data disk that is 50x faster than the LOG and tempdb (measured by Random Write speed) disk. (Don't ask why that's something we'll be fixing if needed)
I have a table that's got 19 ...
2
votes
1answer
69 views
Restoring a database back to a point in time before full backup was made
A problem with one of our database tables arose at the end of last week and I wanted to restore that database to a server in order to retrieve the table. We only have the last backup, and a full set ...
0
votes
2answers
248 views
SQL Server 2008 R2 Restore COPY_ONLY full backup with transaction logs
After doing some research I cannot seem to find an answer to this question.
Background
I am attempting to setup a backup plan that fits the following three requirements:
Reliability of backups, ...
3
votes
1answer
90 views
SQL availability groups log maintenance
I have a AG with 2 nodes in a site in sync mode and 1 offsite in async mode. I'm having trouble understanding how the logspace is maintained in this scenario. For instance, I'm taking log backups ...
0
votes
0answers
32 views
Performing a Transaction Log Backup on a Live Database [duplicate]
I have a server 2012 database that has a transaction log that is growing at a rapid rate. i have a job that runs once a day after production hours which backs up the log file and shrinks it.
The ...
1
vote
1answer
51 views
Online backups with VENDOR library: what should be set for ACTIVE LOG PATH?
My customer is using Veritas NetBackup so we use its library file in the LOGARCHMETH1 parameter for the VENDOR option. That is for archive logging path.
What path should be set for ACTIVE LOG PATH ...
4
votes
1answer
128 views
Transaction Log maintenance on Mirror database
SQL Server Version: 2008 R2 Enterprise SP2
I am trying to get a handle on our SQL Server maintenance and I came across something I think is incorrect. We have a single production instance with 3 ...
2
votes
4answers
444 views
Manually set log file size after shrink SQL Server 2008 R2
Am becoming a somewhat involuntary DBA at work at teh moment and really need some help on something.
We have a 40GB database in Full Recovery Mode, no log backup configured and a huge log file of ...
0
votes
2answers
101 views
Database not naturally shrinking log file [duplicate]
I have a database that is set to Simple recovery mode. There is 99% free space in the log file and I can manually truncate the log file right down to 500 MB.
The next day, after a daily import ...
1
vote
0answers
216 views
SQL Server Troubleshooting Replication and Long-Running fn_dblog query
I am trying to get (pull) Transactional Replication working again for a subscriber.
Currently, in Replication Monitor I am seeing messages in the Publisher to Distributor tab and the Distributor to ...
1
vote
2answers
89 views
Who changed the size of the transaction log?
Can I know, who and when changed size of database transation log?
5
votes
1answer
129 views
Why did my transaction log grow so much? [duplicate]
Possible Duplicate:
Why Does the Transaction Log Keep Growing or Run Out of Space?
About a month ago I migrated my SQL Server 2008 R2 database to a new schema. I ran scripts to migrate the ...
3
votes
0answers
156 views
Why can't I read my transaction log backup file using fn_dump_dblog?
I'm using this blog on sqlskills.com as a guide to practice finding the relevant LSN in a transaction log backup for point in time recovery.
After backing up the transaction log, I attempt to read it ...
5
votes
2answers
155 views
SQL Server Transaction Logs in the Cloud
It is a common practice to place the transaction logs (*.ldf) on a separate physical disk system than database files (*.mdf, *.ndf).
In a virtual machine cloud environment, is it okay to put the ...
3
votes
2answers
140 views
SQL Server transaction log - shrinking and reattaching
I have the next scenario in SQL Server 2008: one big database (production DB). I want to backup this db then restore it on another server.
Then I do some delete operation from some big tables. After ...
0
votes
2answers
122 views
Restore to a point between two full SQL Server backups
I have two SQL Server database backups from Server1. Backup1 was made on, say, 2013-01-01 and Backup2 was made on 2013-01-03. What I want to do is restore Server2 to the intermediate state on ...
0
votes
2answers
504 views
How to disable ldf file or limit its size [duplicate]
Possible Duplicate:
Why Does the Transaction Log Keep Growing or Run Out of Space?
My .ldf file size keeps increasing. I already tried to shrink it but after that it just grows again.
How ...
1
vote
1answer
228 views
SQL Server - how transactions and transaction log work (simplified)
I have a theory on how transactions work, but I would like if someone could verify it or correct some points if possible. Let's consider we have a database with full recovery model.
Now, everything ...
