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Rebuild Index


Rebuild Index

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ravisamigo
ravisamigo
SSCarpal Tunnel
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Sorry for the late reply.

Thanks of your valid suggestions and help !!

Is there any impact to database if we do the index rebuild simultaneously/parellely except the performance issue means database goes to suspect mode or...?please

Please advise me on this.

Thanks and Regards,
Ravi.
sqlbuddy123
sqlbuddy123
SSCoach
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It should be fine except for the clustered indexes. But please test it on the test machine before implementing.

Thank You,

Best Regards,
SQLBuddy
ravisamigo
ravisamigo
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Thanks for the reply.

But we don't have testing environment to test this.

Please advise whether it's fine to proceed or any impact to database.

Regards,
Ravi.
Grant Fritchey
Grant Fritchey
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You should be testing anything new before you do it on your production database. No development environment or anything. You're developing straight onto production? That's very dangerous. I sure hope your backups are extremely well maintained. I won't ask if they're tested.

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TheSQLGuru
TheSQLGuru
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ravisamigo (1/20/2011)
Sorry for the late reply.

Thanks of your valid suggestions and help !!

Is there any impact to database if we do the index rebuild simultaneously/parellely except the performance issue means database goes to suspect mode or...?please

Please advise me on this.

Thanks and Regards,
Ravi.


1) Unless you are on the Enterprise Edition and use the ONLINE option, rebuiding an index will exclusively lock that table and prevent ANY access to it while the index is being rebuilt. So you can completely shut down your application if you rebuild important tables.

2) assuming your IO is on the same spindles for these tables then yes you can seriously affect IO throughput with index maintenance. They can also hammer CPU usage as well.

Best,
Kevin G. Boles
SQL Server Consultant
SQL MVP 2007-2012
TheSQLGuru on googles mail service
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