Find out why an SSIS package takes so long execute ?
Is there any guideline which shows how to find out why a package is taking "too long" to execute ? I guess one situation could be that an SQL query (if you have one) is taking too long. Perhaps the query could be optimized or perhaps its table
could use indexes. Any more scenarios which can make execution take too long ?
I guess it would be better to google "ssis package running slowly" or something like that and read each post to learn reasons for slow execution. Some links I got -
http://social.msdn.microsoft.com/Forums/sqlserver/en-US/55f3bc47-675f-487f-8bc1-b9c9d6b2a0d9/-ssis-package-running-very-slow-writing-512kb-chunk-per-cycle-?forum=sqlintegrationservices
http://stackoverflow.com/questions/2678119/is-there-a-reason-why-ssis-significantly-slows-down-after-a-few-minutes
http://stackoverflow.com/questions/16181921/dataflow-task-in-ssis-is-very-slow-as-compared-to-writing-the-sql-query-in-execu
These ones caught my attention -
http://blogs.msdn.com/b/mattm/archive/2011/08/07/troubleshooting-ssis-package-performance-issues.aspx
http://sqlblog.com/blogs/rob_farley/archive/2011/02/17/the-ssis-tuning-tip-that-everyone-misses.aspx
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Can't find out why my DB is that big
I've got a database which is 260 GB in size. Since I know the application behind the DB, I know the DB should never be that big. Even more, one night I noticed that the DB has increased 30 GB where no obviously activity in the application happened.
The database has multiple tables, but only one of them has the big size of ~260 GB (checked trough Object Explorer Details and by various TSQL-queries). So I know the table for sure, but not the reason of the size of it. It's actual not possible the data
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I already raised suspiction the index or the statistic could be that big as some queries a had run results a Index-size of 220 GB. Other queries on the other hand results a small index.
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Has somebody an idea? Thanks...What is database recovery model? If it is full can backup the db then backup the log and then issue DBCC SHRINKFILE to reduce the physical size fo the log file.
What does it return?
SELECT @@SERVERNAME AS SqlServerInstance,
db.name AS DatabaseName,
SUM(CASE WHEN af.groupid = 0 THEN 0 ELSE 8192.0E * af.size / 1048576.0E END) AS DatabaseSize,
SUM(CASE WHEN af.groupid = 0 THEN 8192.0E * af.size / 1048576.0E ELSE 0 END) AS LogSize,
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Best Regards,Uri Dimant SQL Server MVP,
http://sqlblog.com/blogs/uri_dimant/
MS SQL optimization: MS SQL Development and Optimization
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Hi all,
Observing the below error in event logs once in every day at 3:30 AM on the on SQL Server Machine, it is being used for TFS 2010.
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Thanks in advanceFirst thing to check is, what is happening at 3:30am to cause the log to fill up? Is there any maintenance tasks being run against the DB, such as index re-organizations or rebuilds? If so, take a look at what the job is doing, maybe it could
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Basically, the error is telling you that SQL is trying to do something in the DB, and has filled up the log (either because it's not getting backed up often enough, or the transaction in question is running *very* long, or your log is set to not auto-grow)
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