Alerte lorsque le fichier journal sql devient trop grand?

Question

J'ai besoin de créer une application ou un service qui notifie quand le fichier journal augmente au-dessus d'une certaine taille. Soit un email ou autre chose.

Answer 1

Voici l'ensemble de la tâche d'agent scriptée avec la logique ci-dessus. Voir 3 variables à définir en haut. (Le nom de l'opérateur peut être null si vous souhaitez uniquement générer une erreur de journal de l'application Windows)

USE [msdb] 
GO 
Declare @AdminUserName varchar(255) 
Declare @Operator varchar(255) 
Declare @EmailNotify bit 
Set @AdminUserName = N'YOUR SYSADMIN USER' 
set @Operator = N'YOUR OPERATOR NAME' 
Set @EmailNotify = 1 


/****** Object: Job [Transaction Logfile Size Monitoring] Script Date: 08/02/2012 15:39:11 ******/ 
BEGIN TRANSACTION 
DECLARE @ReturnCode INT 
SELECT @ReturnCode = 0 
/****** Object: JobCategory [[Uncategorized (Local)]]] Script Date: 08/02/2012 15:39:11 ******/ 
IF NOT EXISTS (SELECT name FROM msdb.dbo.syscategories WHERE name=N'[Uncategorized (Local)]' AND category_class=1) 
BEGIN 
EXEC @ReturnCode = msdb.dbo.sp_add_category @class=N'JOB', @type=N'LOCAL', @name=N'[Uncategorized (Local)]' 
IF (@@ERROR <> 0 OR @ReturnCode <> 0) GOTO QuitWithRollback 

END 
Declare @NotifyLevel int 
If @EmailNotify = 1 Begin 
set @NotifyLevel =2 end 
else begin 
set @NotifyLevel=0 
set @Operator=null 
end 

DECLARE @jobId BINARY(16) 
EXEC @ReturnCode = msdb.dbo.sp_add_job @job_name=N'Transaction Logfile Size Monitoring', 
      @enabled=1, 
      @notify_level_eventlog=0, 
      @notify_level_email=@NotifyLevel, 
      @notify_level_netsend=0, 
      @notify_level_page=0, 
      @delete_level=0, 
      @description=N'No description available.', 
      @category_name=N'[Uncategorized (Local)]', 
      @owner_login_name=@AdminUserName, 
      @notify_email_operator_name=@Operator, @job_id = @jobId OUTPUT 
IF (@@ERROR <> 0 OR @ReturnCode <> 0) GOTO QuitWithRollback 
/****** Object: Step [Monitor Logfile Size] Script Date: 08/02/2012 15:39:11 ******/ 
EXEC @ReturnCode = msdb.dbo.sp_add_jobstep @job_id=@jobId, @step_name=N'Monitor Logfile Size', 
      @step_id=1, 
      @cmdexec_success_code=0, 
      @on_success_action=1, 
      @on_success_step_id=0, 
      @on_fail_action=2, 
      @on_fail_step_id=0, 
      @retry_attempts=0, 
      @retry_interval=0, 
      @os_run_priority=0, @subsystem=N'TSQL', 
      @command=N'Declare @LogSize int; 
Declare @LogName varchar(255); 
Declare @LogFile varchar(2000); 

select Top 1 @LogName=name,@LogFile=physical_name,@LogSize = convert(float,size) * 8192/(1024 * 1024) from sys.master_files 
where type_desc = ''LOG'' Order by size desc 

IF (@LogSize > 10240) 
BEGIN 
Declare @AlertString varchar(5000) 
set @AlertString = @LogName + '' : '' + @LogFile + '' has reached a size of '' + Convert(varchar(20),@LogSize) + '' MB.'' 
RAISERROR(@AlertString, 18,1) with LOG 
END 
ELSE 
BEGIN 
RAISERROR(''Transaction Log monitoring complete'', 0, 1) 
END', 
      @database_name=N'master', 
      @flags=4 
IF (@@ERROR <> 0 OR @ReturnCode <> 0) GOTO QuitWithRollback 
EXEC @ReturnCode = msdb.dbo.sp_update_job @job_id = @jobId, @start_step_id = 1 
IF (@@ERROR <> 0 OR @ReturnCode <> 0) GOTO QuitWithRollback 
EXEC @ReturnCode = msdb.dbo.sp_add_jobschedule @job_id=@jobId, @name=N'Hourly Logfile Check', 
      @enabled=1, 
      @freq_type=4, 
      @freq_interval=1, 
      @freq_subday_type=8, 
      @freq_subday_interval=1, 
      @freq_relative_interval=0, 
      @freq_recurrence_factor=0, 
      @active_start_date=20120802, 
      @active_end_date=99991231, 
       @active_start_time=0, 
      @active_end_time=235959, 
      @schedule_uid=N'18435d90-4ca0-4c7a-a8a9-c81f347ba32c' 
IF (@@ERROR <> 0 OR @ReturnCode <> 0) GOTO QuitWithRollback 
EXEC @ReturnCode = msdb.dbo.sp_add_jobserver @job_id = @jobId, @server_name = N'(local)' 
IF (@@ERROR <> 0 OR @ReturnCode <> 0) GOTO QuitWithRollback 
COMMIT TRANSACTION 
GOTO EndSave 
QuitWithRollback: 
    IF (@@TRANCOUNT > 0) ROLLBACK TRANSACTION 
EndSave: 

GO 

Answer 2

La vue sys.master_files contient la taille du fichier journal (s):

select size * 8192/(1024 * 1024) as [Size in MB] 
from sys.master_files 
where type_desc = 'LOG' 
     and database_id = db_id('NameOfYourDatabase') 

Il énumère la taille en blocs 8KB.

Vous pouvez vérifier la taille d'une tâche planifiée Agent SQL et, si elle dépasse une certaine taille, envoyez un e-mail avec sp_send_dbmail.