i had a problem with a server instance where an app processing a file and putting the data into the database using a stored procedure was timing out. the app is a service and in the case of errors, will try to process the file until it has been succesfully added data to the database. in the event viewer i keep seeing this message during this timeout period:
"Autogrow of file 'mydatabase_log' in database 'mydatabase' was cancelled by user or timed out after 15687 milliseconds. Use ALTER DATABASE to set a smaller FILEGROWTH value for this file or to explicitly set a new file size."
is there a possibility that this process was causing my SP to timeout? are there any other log or debug files that SQL Express creates that might be helpful in discovering what caused the timeout? currently the log is at... ouch 10gigs restricted... maybe trying to autogrow from this while restricted is hogging resources?
As SQL Server Express databases are limited to 4GB per database, I just wonder why you need 10GB of logs ? Did you consider backing up your database and shrink your logfiles ?
HTH, Jens K. Suessmeyer.
http://www.sqlserver2005.de|||when we created the database, we used the default setting for the log file, which was "By 10 percent, restricted growth ". currently we backed up the database, detached the DB, removed the old log file, and reattached the DB. it created a new log file and we set it to a smaller size. as i understand it the log file holds the uncommitted transactions, is this true? if we want the log file to stay at a certain size maybe i need to uncheck AutoGrowth? and going back to the original question, if SQL was trying to autogrow a 10 gig file, could this have used all the resources at the moment and timeout any stored procedures running during this autogrowth process?|||
Hi nattylife,
for an instance assump your Log File size is 12 GB, you have set up Auto Growth option in 20% , now when ever your T-Log file need to grow it will grow 12 GB * 20 % means it will grow 2.4 GB in size and while this process is running it occupy the server resource (yes it will effect while this happens in pick time).
If you stop/uncheck/disabled Auto Grow , you may be in trouble because if your T-log need to grow and Auto Grow is disabled it might be resulted in SUSPECT status of your database, so don't disabled Auto Grow set it in appropriate % / MB as per your *requirement/perdiction* in growth of your database. BTW what is your Recovery Model of your database?
Refer T-Log architecture in BOL to understand more, BOL is your best friend.
Hemantgiri S. Goswami
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Your way of removing the log file is dangerous and not best practise. You should take a backup of your database and shrink the log afterwards, rather than just *deleting* it and let it recreate by SQL Server.
HTH, Jens K. Suessmeyer.
http://www.sqlserver2005.de
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 Jens K. Suessmeyer wrote: |
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| Your way of removing the log file is dangerous and not best practise. You should take a backup of your database and shrink the log afterwards, rather than just *deleting* it and let it recreate by SQL Server.
HTH, Jens K. Suessmeyer.
http://www.sqlserver2005.de |
we backed up the database before we do any questionable practices. the database is filled with 3 text files that our app recieves every day. inside each file are the records for the database. we archive these every day for 90 days in case we have any database issues. after doing some more research, i found how to shrink the log in the CTP which was the approach i was looking for, just didnt find until after the fact. i didnt realize that this log file would grow coninuously, i was under the assumption it would eventually get written over. so we are discussing a way to archive the ldf file now too.
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Hi,
you should consider using the backup functions of SQL Server. You are able to do either full / differential or transaction log backups. A combination of those will help you to make your databases disaster-recoverable.
HTH, Jens K. Suessmeyer.
http://www.sqlserver2005.de
|||i checked the backup options in the CTP. i see where i can do a log backup, but is this a manual process or when will it do it on a regular basis since i dont see any option to automate it. if i wanted to automate it, would i need to implement this with my own service or such?|||Hi,
SQL Server Agent is not shipped with SQL Server Express. An approach could be to script out the backup command (using the functionality of the management studio) and schedule the execution of the script using an AT command (or any other scheduler) by executing the script with SQLCMD.
HTH, Jens K. Suessmeyer.
http://www.sqlserver2005.de
