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When selecting the Transaction Log file from the dropdown on the Shrink Files screen in SSMS, I get the following error:

Failed to retrieve data for this request. (Microsoft.SqlServer.Management.Sdk.Sfc)
Additional information: An invalid Floating point operation occurred. (Microsoft SQL Server, Error: 3623)

It is happening on the same database on 2 different servers (restored from a SQL 2008 R2 Enterprise Ed. server to a SQL 2016 Standard Edition server nightly). There are older copies spawned of the same database on QA and Dev from dates 2 months ago, and they do not experience the issue, so it is something that happened recently.

I have tried:

  1. DBCC CHECKDB - no errors
  2. Took DB offline, deleted transaction log, recreated t-log using T-SQL. - No effect on error message
  3. Detached DB, Reattached - No effect on error message
  4. Set DB to FULL recovery mode (was previously on SIMPLE), allowed users to generate a good amount of transactions successfully. - No effect on error message
  5. Set DB back to SIMPLE recovery mode. - No effect on error message
  6. Attempted DBCC SHRINKFILE (<database_name>_log, 1). - No effect on error message. However, running this did generate the following message:

    Msg 8985, Level 16, State 1, Line 24 Could not locate file '<database_name>_log' for database '<database_name>' in sys.database_files. The file either does not exist, or was dropped.

... Which made me decide to go do a select over sys.database_files and see if anything looked out of place. It looks normal to me... look and see if you see anything that looks abnormal:

file_id= 2 
file_guid= 2BA3CDBB-3F3F-4F81-B067-25712493E963 
type= 1
type_desc= LOG  
data_space_id= 0    
name= <database_name>_log
physical_name= L:\MSSQL\Data\<database_name>.ldf
state= 0 
state_desc= ONLINE
size= 64000
max_size= 268435456
growth= 64000   
is_media_read_only= 0
is_read_only= 0
is_sparse= 0
is_percent_growth= 0
is_name_reserved= 0
create_lsn= NULL
drop_lsn= NULL  
read_only_lsn= NULL 
read_write_lsn= NULL    
differential_base_lsn= NULL 
differential_base_guid= NULL    
differential_base_time= NULL    
redo_start_lsn= NULL    
redo_start_fork_guid= NULL  
redo_target_lsn= NULL   
redo_target_fork_guid= NULL 
backup_lsn= NULL

UPDATE Since now I'm able to shrink the log using T-SQL (DBCC SHRINKFILE (_log,...) ), I'm lowering the urgency of a fix. However, I would still like to know if anyone has a fix for the original error, when shrinking using the GUI in SSMS.

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  • The Msg 8985 error is almost certainly because you ran the SHRINKFILE command from the wrong database (or while the database was detached). Commented Jan 23, 2018 at 0:49
  • Is it correct that your server is a SQL Server 2016? Are you maybe using an older version of SSMS?
    – Magier
    Commented Jan 23, 2018 at 9:18
  • Using SSMS 2017, patched to 14.0.17213.0 SQL version is 13.0.4206.0 DB compatibility level is SQL Server 2016 (130)
    – Sil8ntDBA
    Commented Mar 5, 2018 at 17:20

1 Answer 1

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You should update your question with the full @@version of your server.

You mentioned only that you use SQL Server 2008 R2, if you are only on SP2 this hotfix is for you: Cumulative update package 8 for SQL Server 2008 R2 Service Pack 2

Among the issues it fixes, there is yours:

enter image description here

But I recommend you to patch your server to SP3.

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  • It's SQL 2016... I am able to shrink the file with the DBCC SHRINKFILE command... just wondering what could be ailing the GUI.
    – Sil8ntDBA
    Commented Mar 5, 2018 at 17:47
  • But OP says: Attempted DBCC SHRINKFILE (<database_name>_log, 1). - No effect on error message. However, running this did generate the following message: Msg 8985, Level 16, State 1, Line 24... So how are you able to shrink using the command if it produces this error?
    – sepupic
    Commented Mar 6, 2018 at 8:06
  • the error I get is not 8985... this is my error: Failed to retrieve data for this request. (Microsoft.SqlServer.Management.Sdk.Sfc) Additional information: An invalid Floating point operation occurred. (Microsoft SQL Server, Error: 3623) I get the error when I change the selection from "Data" file to "Log" file in the drop-down menu on the "shrink files" screen in SSMS.
    – Sil8ntDBA
    Commented Mar 6, 2018 at 17:48
  • This is not server error, it's smth that has to do with GUI(SSMS), what is your SSMS version?
    – sepupic
    Commented Mar 7, 2018 at 7:22
  • USE [database_name] GO DBCC SHRINKFILE (N'<database_logical_name>_log' , 30720) GO
    – Sil8ntDBA
    Commented Mar 7, 2018 at 16:22

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