Transaction log is a list/history of modification executed by a database management system to guarantee ACID properties over crashes or hardware failures.

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SQL Server 2008 transaction log full

We have a large database, with a size of approx 400GB. We are using bulk insert (from upstream system) with the following parameters: `Driver=/IIS/Appl/Server/branded_odbc/lib/VMsqls24.so` ...
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4answers
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Does it make sense to use full recovery if the data and log files are on the same HD?

We have a database that was set up to use full recovery and my guess is that the reasoning was only to prevent data loss if a failure happened between backups. We make daily full backups of the ...
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150 views

SQL Server transaction log [duplicate]

Possible Duplicate: Why Does the Transaction Log Keep Growing or Run Out of Space? Is it possible to have SQL Server 2008 R2 reset the transaction log for certain databases when the ...
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1answer
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Why does my transaction log use so much space?

I have a staging table with 20 million rows that uses about 8GB of storage. After populating foreign keys and sanitizing data I need to move this data into a production table (which does not need all ...
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1answer
475 views

In Sybase, what can I do to figure out why my Transaction Log is filling up?

We have a process that runs each morning to load about 40,000 rows from one server to another. In the past few weeks, the process has been having a 'log suspend' once or twice a week. This is ...
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Disabling logging on certain tables

I'm using SQL Server 2005. I have two tables that contain aggregate information. The information is constantly being updated, generating almost 5GB of log data a day. (That's larger than the entire ...
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3answers
205 views

Transaction Log file .ldf is too small

Current database is almost 200GB however the transaction log file is only 4.1GB. I am worried if this influences the performance of databse and how could it be solved. When I do this query DECLARE ...
5
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2answers
404 views

How do I tell what is filling up the transaction log?

We have a transaction log on a sql database and for some reason it has filled up to 50GB when our live system only has about 2GB. Is there any way I can profile sql or the transaction log to try and ...
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1answer
109 views

How are transactions logs inserted?

I have an ms-access database at work that has a table that's a transaction log. The table contains the following fields: Date - The date the transaction took place. Table_Name - Name of the ...
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1answer
124 views

Can We Perform an “Up-To-The-Minute Restore” After Taking Transaction Log Backups?

The Setup: Say we have a Database in Full Recovery Mode that does a nightly Database Backup, Transaction Log Backup, and Transaction Log Shrink. Now the Transaction Log grows so quickly during the ...
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2answers
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How can I find databases with a large number of virtual log files?

I have several databases on a production server that are in the hundreds of gigabytes, and have many thousands of transactions running through them on a daily basis. Almost all these databases are ...
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1answer
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SQL Server transaction log file refuses to grow

Problem: I have a SQL Server database sitting on a 1 TB drive. The log will not grow past 5 MB even when the MAXSIZE is set much larger than 5 MB. Error received: The transaction log for database ...
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View delete statements in the Transaction log

Is it possible to view delete statements that have recently occurred in the Transaction Log?
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Safely deleting a SQL Server log file (.LDF)

I can make sure my app is in a consistent state. I can rollback all the uncompleted transactions if any (just in case) it's ok I can DETACH the database What do I need the log file for after that? ...
3
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1answer
439 views

PostgreSQL WAL Archiving: Does having archive_mode set to 'on' without copying logs cause performance issues?

Using PostgreSQL 8.4/CentOS 6: if I set the archive_mode parameter to on in postgresql.conf, but don't actually store the generated WAL files anywhere via the archive_command parameter, is there any ...
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3answers
442 views

When are Archived Redo Logs generated?

We have an instance in Oracle 10g. Only one schema is used for a web application (Internet-facing), which is only user for reading information, no adding or modifying data. The rest of schemas are ...
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1answer
3k views

MS SQL Server - Checkpoint process stuck in SLEEP_BPOOL_FLUSH

We seem to have a problem that came out of nowhere. The checkpoint process is stuck in SLEEP_BPOOL_FLUSH state, and not actually reducing the usage in the log file. This never seemed to happen ...
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3answers
391 views

Is there a performance benefit to placing transaction log files on a separate drive?

There are many blog posts and best practice articles extolling the virtues of placing the SQL Server data file on one hard drive and the transaction log on another. The reason given is that that the ...
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3answers
397 views

Is it possible to recover day's worth of queries from sql server log file?

I lost all data entered and edited in my system yesterday, and my ISP has announced to me that last night's backup is corrupt and cannot be recovered. Is there any way to access the database's log ...
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1answer
577 views

Transaction Log Truncation with Copy Only

I have a database backup job set to use full backup with the Copy only option on once daily. The copy only is on because from what I have read that is the only way to backup a database that is ...
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2answers
792 views

SQL Server 2008 Query Saved in Logs?

Every time I create a query and run it to create a report I save the query in my Projects folder in case I have to rerun the query in the future or if I have to modify it for any reason but it seems ...
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2answers
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SQL Server how to get around the transaction log filling up when updating a column to an int

I have a SQL Server 2005 table called BRITTNEY_SPEARS_MARRIAGES and it has the following columns: MarrigeId tinyint, HusbandName varchar(500), MarrigeLength int Now I have another table ...
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Transaction Log and mirroring - looking for dumbest explanation possible

First of all I must admit that I struggle with concept of Transaction Log. I mean - I do understand that it is Log of all Transactions that happen on database, but when it comes to properly putting it ...
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1answer
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Does the PCI require to protect the Credit Card Info in the transaction log?

The PCI Data Security Standard https://www.pcisecuritystandards.org/documents/pci_dss_v2.pdf forbid storing Credit Card info in the transaction log 3.2.1 For a sample of system components, examine ...
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1answer
215 views

Initial recovery Postgres with backup in sync commit mode

I've got a master and a slave postgres 9.1.3 database. I would like to init the backup database for the first time. I did the following steps: Stopped master Copied all files to Slave Create ...
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What is the purpose of having a table NOT LOGGED INITIALLY

I came across this recently. When defining a table in DB2 LUW (at least 9.5 or higher), you can define it as NOT LOGGED INITIALLY. Example from the book I read: CREATE TABLE products ( productID ...
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2answers
190 views

Will removing a 2nd log file break log shipping?

We have a large database 200GB+ to which we added a second log file to cater for growth during an upgrade. This is now no longer needed so we want to remove it. Normally this would be a simple ALTER ...
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1answer
346 views

SQL Server 2005 Percent Log Used Alert fires too fast?

I have a SQL Server 2005 database thats roughly half a terabyte. Third party software that I don't control writes to the database. I have a Maintenance Plan which backs up the transaction log, and ...
2
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1answer
398 views

Maintenance Plan Takes Too Long - Locks Tables - Indexing To Blame

System: I have a Maintenance Plan that Rebuilds Indexes for Several Tables (10 tables, 50M records total). Issue: During the Index Rebuild (~20 minutes), we fail to insert data into the DB ...
2
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1answer
231 views

Postgres synchronized backup - what's with the archive?

I am setting up a Postgres 9.1 master and a hot standby-server. I read the documentation but I'm not quite sure yet what I should do with my WAL files. Every commit is done on both servers before ...
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3answers
294 views

Big size of database logs SQL Server 2008

I have a database which is running under Microsoft SQL Server 2008. Now, I have seen that the log of the database (the .ldf file) is growing to big size. The database file (.mdf) has a size of 630MB ...
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Is this procedure to Failover to Logshipped secondary and Fail back again procedure correct?

I have a primary database in Amsterdam (AMDB), and a secondary in London (LNDB). I want to fail over from AMDB, to LNDB and then back again, without having to make another full backup (because the ...
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1answer
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How to manage a large SQL Server database: transaction log, reduce size, alter table

Hello I have some confusion on how to manage a large SQL Server database. Let's say size is 15GB, with 3GB available, in simple recovery mode. Server is not managed by me, I cannot change the size, ...
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How to monitor SQL Server data and log file growth?

I'm trying to find a way to monitor data and log file size from SQL Server databases (within an SQL Server instance). I would not want to use third party tools, but simply pure SQL or PowerShell. I ...
3
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2answers
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What is the undo pass that SQL Server does during a RESTORE WITH STANDBY operation?

It's my understanding that SQL Server generates undo files when applying a restore to a database using the RESTORE WITH STANDBY. From the MSDN documentation (Emphasis mine): The standby file is ...
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2answers
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SQL Server 2008, switching to simple recovery mode

Currently our transaction log is 50 GB; impressive huh? I want to switch to simple recovery mode and remove the transaction log entirely. Do I need to stop any user activity and detach the database. ...
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1answer
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Disable SQL Server Log Shipping to nonexistent destination

I am administering a SQL Server 2008 instance in a dev environment. At some point before I became an administrator, someone enabled log shipping from one of the databases on this dev instance to ...
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4answers
344 views

SQL Server restore from transaction log

In SQL Server 2005, if you have a database with no backup - but it is running in full recovery mode - is it possible to "roll back" some deletes? If yes - how?
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Does a full transaction log cause a rollback?

Will a transaction that is trying to write something into the transaction log be rolled back if the transaction log is full?
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Keep transaction log size under control during batch processing

tl;dr I think my verbosity has obscured the real question I'm asking here, so I apologise for that. My main issue is that the checkpoint command appeared to be working for at least 800 iterations of ...
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1answer
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Whats the difference between Transaction logs and Binary logs?

Coming from a SQL Server shop, I now work with MySQL and I was curious. What are the differences between MySQL's binary log and MSSQL's transaction log? By the outlook thus far, it seems that there ...
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2answers
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SQL Server 2008 - Log file out of control & cant shrink it [duplicate]

Possible Duplicate: Why Does the Transaction Log Keep Growing or Run Out of Space? I am having trouble with my database, the log files is currently 250GB in size, I need to shrink this down ...
2
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2answers
348 views

How do you fix Autogrowth being set to 12800%

We're running SQLServer 2005 SP1 and for some weird reason our one database transaction log automatically changed it's Autogrowth to 12800% which isn't even a valid number. I cannot change the growth ...
3
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1answer
243 views

Does blocking always mean open transaction?

This may seem a bit dull question but does blocking always mean that there is open transaction and that may cause transaction log grow to infinity because open transaction prevents log truncation ...