Why does log _ reuse wait DESC remain log backup?
Paul Randal has a great post that goes into details about the Log_Backup description. The short answer from his post is “If you have a transaction log that is not growing, and you’re taking regular log backups, but the log_reuse_wait_desc remains LOG_BACKUP, this is because zero VLFs were cleared when the previous log backup was performed.”
Is it possible to reuse a virtual log file?
If your database recovery model is “full” SQL Server cannot reuse virtual log files unless all contained transaction log records have been backed up with a log backup. If a log backup is outstanding the log has to grow to accommodate new data changes. During this time you will see a log_reuse_wait_desc of LOG_BACKUP.
What should I do if my log backup is outstanding?
If a log backup is outstanding the log has to grow to accommodate new data changes. During this time you will see a log_reuse_wait_desc of LOG_BACKUP. Full or differential backups do not backup all transaction log records, so you need to run an actual log backup to allow for virtual log file reuse.
What to do when log reuse does not work?
Tried the usual – log backup –> shrink changed to simple and back does not work. Bala – for personal consulting, click Consulting at the top of the screen. Solved – Adding the database back to the AG group (No need to add all the replica nodes) and then removing it again freed whatever was stuck and made the server thinking it is replicating.
Why is my database log file not clearing out?
This spiffy little snippet will tell you why each database’s log file isn’t clearing out. Possible reasons include: Log backup needs to be run (or if you could lose a day’s worth of data, throw this little fella in simple recovery mode)
When to use log reuse in AlwaysOn?
Hi Brent – With AlwaysOn the log reuse can be held if say the replica is paused or down or maybe just catching up with a big operation. So primary retains log until back and/or synced. Correct..? Does the availability mode (sync or async) have any impact on this.