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Replication Latency Monitoring Job Automation




           I got a task to automate replication monitoring in my environment. So I created a procedure and called it from a job every 5 mins.

If there is latency ,This Procedure sent mail to dba team with latency details , job , and where exactly latency exists.


\**********************************************/
Create Procedure Replication_Latency_Monitoring ( @minutes int) 
As 
Begin 
/***************************************** 
Created By: Algae Services   
Created Date: 05/05/2015 
Details: This check Latency in sql server replication set for 5 mins 
**********************************************/ 
--declare @minutes int 
--set @minutes = 5 --> Here is where you define how many minutes latency you would like to be notified 
declare @threshold int 
set @threshold = @minutes * 60 * 1000  
  

--Specify email distribution list, To and CC  
declare @Tolist varchar(100) 
----declare @CClist varchar(100)  
set @Tolist = 'Team Mail ID for Distibution' 
----set @CClist = 'GTS.BANGALORE.DATABASE@ajg.com' 
  
declare @mailsubject  varchar(100) 
set @mailsubject = @@SERVERNAME + ' Replication Latency' 
   
if exists ( 
select top 1 1  from sys.dm_os_performance_counters where object_name like '%Replica%'  
and counter_name like '%Logreader:%latency%' and cntr_value > @threshold 
union 
select top 1 1  from sys.dm_os_performance_counters where object_name like '%Replica%'  
and counter_name like '%Dist%latency%' and cntr_value > @threshold) 
begin  
  
DECLARE @tableHTML  NVARCHAR(MAX) ; 
  
SET @tableHTML = 
    N'<H1>'+@@SERVERNAME+' Replication Latency</H1>' + 
    N'<table border="1">' + 
    N'<tr><th>Agent</th><th>Latency Detail</th>' + 
    N'<th>JOB</th><th>latency in sec</th>' + 
    CAST ( ( SELECT td = object_name,       '', 
                    td = counter_name, '', 
                    td = instance_name, '', 
                    td = latency_sec, '' 
             FROM  
             (select object_name, counter_name, instance_name, round(cntr_value/1000,0) as latency_sec from sys.dm_os_performance_counters where object_name like '%Replica%'  
                and counter_name like '%Logreader:%latency%' and cntr_value > @threshold 
        union 
          select object_name, counter_name, instance_name, round(cntr_value/1000,0) as latency_sec from sys.dm_os_performance_counters where object_name like '%Replica%'  
                and counter_name like '%Dist%latency%' and cntr_value > @threshold)
              FOR XML PATH('tr'), TYPE  
    ) AS NVARCHAR(MAX) ) + 
    N'</table>' ; 
  
        exec  msdb.dbo.sp_send_dbmail  
        @recipients= @Tolist, 
       ---- @copy_recipients = @CClist, 
        @subject = @mailsubject ,  
        @body_format ='HTML', 
        @body = @tableHTML 
  
END 
  
END
**********************************************/




----------------------------------------------------------------
USE [msdb]
GO

/****** Object:  Job [_AJGDBA_Replication_Latency_Monitoring]    Script Date: 05/14/2015 12:17:29 ******/
BEGIN TRANSACTION
DECLARE @ReturnCode INT
SELECT @ReturnCode = 0
/****** Object:  JobCategory [[Uncategorized (Local)]]]    Script Date: 05/14/2015 12:17:29 ******/
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 @jobId BINARY(16)
EXEC @ReturnCode =  msdb.dbo.sp_add_job @job_name=N'Replication_Latency_Monitoring',
            @enabled=1,
            @notify_level_eventlog=0,
            @notify_level_email=2,
            @notify_level_netsend=0,
            @notify_level_page=0,
            @delete_level=0,
            @description=N'No description available.',
            @category_name=N'[Uncategorized (Local)]',
            @owner_login_name=N'sa',
            @notify_email_operator_name=N'Add Operator Name', @job_id = @jobId OUTPUT
IF (@@ERROR <> 0 OR @ReturnCode <> 0) GOTO QuitWithRollback
/****** Object:  Step [Check Latency]    Script Date: 05/14/2015 12:17:30 ******/
EXEC @ReturnCode = msdb.dbo.sp_add_jobstep @job_id=@jobId, @step_name=N'Check Latency',
            @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'<Database Name>.dbo.Replication_Latency_Monitoring @minutes = 5',
            @database_name=N'<Database Name>',
            @output_file_name=N'C:\Replication_latency_JOB.txt',
            @flags=2
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'Replication_Latency_Monitoring',
            @enabled=1,
            @freq_type=4,
            @freq_interval=1,
            @freq_subday_type=4,
            @freq_subday_interval=5,
            @freq_relative_interval=0,
            @freq_recurrence_factor=0,
            @active_start_date=20150505,
            @active_end_date=99991231,
            @active_start_time=0,
            @active_end_time=235959,
            @schedule_uid=N'ca226490-cf40-4e5f-ae64-ae4bb06c2b84'
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
/******************Code END *********************/


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