SQL Clone
SQLServerCentral is supported by Redgate
 
Log in  ::  Register  ::  Not logged in
 
 
 


Why in recovery for so long if database is in SIMPLE mode


Why in recovery for so long if database is in SIMPLE mode

Author
Message
james marriot
james marriot
SSC Rookie
SSC Rookie (29 reputation)SSC Rookie (29 reputation)SSC Rookie (29 reputation)SSC Rookie (29 reputation)SSC Rookie (29 reputation)SSC Rookie (29 reputation)SSC Rookie (29 reputation)SSC Rookie (29 reputation)

Group: General Forum Members
Points: 29 Visits: 26
Hi.

I have a database thats just undergone a very large insert into a table. The instance was restarted and now the database is in recovery mode.
The database is in simple mode.

I would have assumed that once the insert was done and commited the log would checkpoint itself soon after and there would be no long recovery. can anyone explain where my thinking on this might be wrong?
GilaMonster
GilaMonster
SSC Guru
SSC Guru (88K reputation)SSC Guru (88K reputation)SSC Guru (88K reputation)SSC Guru (88K reputation)SSC Guru (88K reputation)SSC Guru (88K reputation)SSC Guru (88K reputation)SSC Guru (88K reputation)

Group: General Forum Members
Points: 88066 Visits: 45277
Recovery model has no effect at all on recovery times.

Recovery time is a factor of how much needs to be undone or redone at startup. If it's taking forever, you likely had a large uncommitted transaction at time of shutdown or a large transaction that had committed but not yet written to the data file, possibly also VLF fragmentation.

Gail Shaw
Microsoft Certified Master: SQL Server, MVP, M.Sc (Comp Sci)
SQL In The Wild: Discussions on DB performance with occasional diversions into recoverability

We walk in the dark places no others will enter
We stand on the bridge and no one may pass


Go


Permissions

You can't post new topics.
You can't post topic replies.
You can't post new polls.
You can't post replies to polls.
You can't edit your own topics.
You can't delete your own topics.
You can't edit other topics.
You can't delete other topics.
You can't edit your own posts.
You can't edit other posts.
You can't delete your own posts.
You can't delete other posts.
You can't post events.
You can't edit your own events.
You can't edit other events.
You can't delete your own events.
You can't delete other events.
You can't send private messages.
You can't send emails.
You can read topics.
You can't vote in polls.
You can't upload attachments.
You can download attachments.
You can't post HTML code.
You can't edit HTML code.
You can't post IFCode.
You can't post JavaScript.
You can post emoticons.
You can't post or upload images.

Select a forum

































































































































































SQLServerCentral


Search