What I need to do to shrink log automatically. I need to shrink it because it grows very much after maintenence plan. Hi Alexey, My data ware housing team send me a same error message what ever you got It. In this situation I suggest you to take 10 mins break between your 2nd and 3rd step. I am sure your problem will be solved. In your case shrinking is not giving any benefits to you, but it takes resources from your server and finally in future your system will go slow.
The reason is that when you shrink any file, the system fragmentation level become high compare with previous and if its your daily process then you can think about that. Regards Deepak Goyal. Alexey, I'm curious what exactly are you doing in the step 4 "Makes fake backup of transaction log to remove it later "?
If that's a a regular backup and you delete it then you are breaking LSN sequence and your transaction log backup is basically useless after that point. As has been mentioned before, switching from Full to Simple recover should be used as a last resource. In most cases you won't be able to truncate log if there are long running uncommitted transactions Maybe if you move step 6 to run after step 8 you would have more luck?
On another hand, if your log grows to the size where you have to shrink it, then maybe you should just leave its size big? Disk operations are kind of expensive. Regards, Akim. Greetings all. I've tried every solution here to no avail. In addition to everything here, I've tried: 1 Creating a new TLog file, and dropping the original.
Not allowed. Didn't help. Not allowed to specify less than it's current size. I have to shrink TLogs weekly, but have never encountered this until now. Any other ideas? I'm really at the point of considering PSS, but wanted to make one last effort here. Obviously this may impact other things such as log backup, logshipping, mirroring etc but a good DBA should already know this and be prepared to sort it out or prepeare for the consequences of the change.
I didn't change it to SIMPLE because I understand the consequences as well as I do, and was unwilling to accept the consequences of making this switch. The one and only thing I was able to do do remedy this issue was to detach the DB, then do a single file attach thereby creating a new TLog. We had a simliar situation on a production database with log shipping enabled, so we did not want to use the SIMPLE mode option.
The log file would not shrink because there was an open transaction left by a poorly written application. We killed the SPID and were able to shrink the log. I have the same problem. I figured it out where this came from. Actually, when you are running this query command either by manually or automatically , however we just run it without considering other activities running in the SQL transactions. The cleanest way to shink a database without losing transactions and ensure full PITR data recoverability is this:.
If so then do a TLOG backup. One transaction log file is sufficient unless log space is running out, and disk space is also running out on the volume that holds the log file.
Restarting a server instance resizes the transaction log of the tempdb database to its original, pre-autogrow size. This can reduce the performance of the tempdb transaction log. You can avoid this overhead by increasing the size of the tempdb transaction log after starting or restarting the server instance.
For more information, see tempdb Database. Note the following:. The file growth increment on a log file should be sufficiently large to avoid frequent expansion. A good pointer to properly size a transaction log is monitoring the amount of log occupied during:. A small growth increment can generate too many small VLFs and can reduce performance.
To determine the optimal VLF distribution for the current transaction log size of all databases in a given instance, and the required growth increments to achieve the required size, see this script. A large growth increment can generate too few and large VLFs and can also affect performance.
Even with autogrow enabled, you can receive a message that the transaction log is full, if it cannot grow fast enough to satisfy the needs of your query. Having multiple log files in a database does not enhance performance in any way, because the transaction log files do not use proportional fill like data files in a same filegroup. Log files can be set to shrink automatically.
Skip to main content. One of the most popular questions I often receive is why do I like to do consultation — my answer is very simple — it gives me an opportunity to learn continuously learn new things from my clients. To perform one of the performance tuning tasks we needed a list of all the logical and physical names for the files for every single database on the SQL Server Instance. Here is the script which can list all the physical and logical name of the files along with their type as well.
In the result set, you can see database name, logical file name, physical file name, and type of the file. The reason, I decided to blog about this script because even though it is a very simple script I was particular, not able to find such script online. I believe sometimes we skip learning a simple script and write a complicated script. If you have any similar script which is simple and you use daily, please send them to me.
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