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Re: SQL Server 2008 R2 - Reorganize Index taking too long

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From	Erland Sommarskog <esquel@sommarskog.se>
Newsgroups	comp.databases.ms-sqlserver
Subject	Re: SQL Server 2008 R2 - Reorganize Index taking too long
Date	Fri, 6 May 2011 10:44:32 +0000 (UTC)
Organization	Erland Sommarskog
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SGoncalves (goncalves.sergiom@gmail.com) writes:
> I'm administering a SQL Server 2008 R2 and I have a daily maintenance
> plan that backs up a database and then reorganizes it's indexes and
> updates statistics. Lately the reorganize index task is taking over 8
> hours to complete.
> 
> This is not a normal behavior since the rebuild indexes task I run on
> weekends takes less then an hour.
> The database is almost 60 GB in size.
 
Stop reorganising the indexes. Monitor your fragmentation, to see whether 
any action is needed at all.

Reorganisation uses a kind of bubble-sort algorithm, and in some situation 
it can take some time to handle a fairly small amount of fragmentation.



-- 
Erland Sommarskog, SQL Server MVP, esquel@sommarskog.se

Books Online for SQL Server 2005 at
http://www.microsoft.com/technet/prodtechnol/sql/2005/downloads/books.mspx
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SQL Server 2008 R2 - Reorganize Index taking too long SGoncalves <goncalves.sergiom@gmail.com> - 2011-05-06 02:09 -0700
  Re: SQL Server 2008 R2 - Reorganize Index taking too long Erland Sommarskog <esquel@sommarskog.se> - 2011-05-06 10:44 +0000
    Re: SQL Server 2008 R2 - Reorganize Index taking too long SGoncalves <goncalves.sergiom@gmail.com> - 2011-05-06 06:59 -0700
    Re: SQL Server 2008 R2 - Reorganize Index taking too long Gene Wirchenko <genew@ocis.net> - 2011-05-06 10:23 -0700
      Re: SQL Server 2008 R2 - Reorganize Index taking too long Erland Sommarskog <esquel@sommarskog.se> - 2011-05-06 23:49 +0200
        Re: SQL Server 2008 R2 - Reorganize Index taking too long SGoncalves <goncalves.sergiom@gmail.com> - 2011-05-09 03:00 -0700
          Re: SQL Server 2008 R2 - Reorganize Index taking too long Erland Sommarskog <esquel@sommarskog.se> - 2011-05-09 23:59 +0200
            Re: SQL Server 2008 R2 - Reorganize Index taking too long SGoncalves <goncalves.sergiom@gmail.com> - 2011-05-10 03:44 -0700
              Re: SQL Server 2008 R2 - Reorganize Index taking too long Henk van den Berg <hvandenberg@xs4all.nl> - 2011-05-10 12:51 +0200
                Re: SQL Server 2008 R2 - Reorganize Index taking too long Henk van den Berg <hvandenberg@xs4all.nl> - 2011-05-10 12:53 +0200
              Re: SQL Server 2008 R2 - Reorganize Index taking too long Erland Sommarskog <esquel@sommarskog.se> - 2011-05-10 23:36 +0200
                Re: SQL Server 2008 R2 - Reorganize Index taking too long SGoncalves <goncalves.sergiom@gmail.com> - 2011-05-11 03:22 -0700

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