如何在sql server中的所有现有作业中添加一个步骤

Question

IF (SELECT ars.role_desc
    FROM sys.dm_hadr_availability_replica_states ars
    INNER JOIN sys.availability_groups ag
    ON ars.group_id = ag.group_id
    AND ars.is_local = 1) <> 'PRIMARY'
BEGIN
   --We're on the secondary node, throw an error
   THROW 50001, 'Unable to execute job on secondary node',1
END

设置此步骤以在成功时继续下一步，并在失败时退出报告成功的作业。

你能解释一下如何在所有现有的 SQL 服务器作业中添加这个步骤吗？

Answer 1

我创建了一个存储过程，它将为任何现有的代理作业添加一个新的第一步。

它检查是否在 AG 主副本上运行，否则成功退出：

use master
go

-- Adds a first step to specified job, which checks whether running on Primary replica

create procedure AddAGPrimaryCheckStepToAgentJob
    @jobname nvarchar(128)
as

set nocount on;

-- Do nothing if No AG groups defined
IF SERVERPROPERTY ('IsHadrEnabled') = 1
begin
    declare @jobid uniqueidentifier = (select sj.job_id from msdb.dbo.sysjobs sj where sj.name = @jobname)

    if not exists(select * from msdb.dbo.sysjobsteps where job_id = @jobid and step_name = 'Check If AG Primary' )
    begin
        -- Add new first step: on success go to next step, on failure quit reporting success
        exec msdb.dbo.sp_add_jobstep 
          @job_id = @jobid
        , @step_id = 1
        , @cmdexec_success_code = 0
        , @step_name = 'Check If AG Primary'
        , @on_success_action = 3  -- On success, go to Next Step
        , @on_success_step_id = 2
        , @on_fail_action = 1     -- On failure, Quit with Success  
        , @on_fail_step_id = 0
        , @retry_attempts = 0
        , @retry_interval = 0
        , @os_run_priority = 0
        , @subsystem = N'TSQL'
        , @command=N'IF (SELECT ars.role_desc
        FROM sys.dm_hadr_availability_replica_states ars
        JOIN sys.availability_groups ag ON ars.group_id = ag.group_id AND ars.is_local = 1) <> ''Primary''
    BEGIN
       -- Secondary node, throw an error
       raiserror (''Not the AG primary'', 2, 1)
    END'
        , @database_name=N'master'
        , @flags=0
    end
end
GO

博客文章在这里。

注意：对于 SQL Server 2014 以后，您可以使用内置函数sys.fn_hadr_is_primary_replica('dbname')：

If sys.fn_hadr_is_primary_replica (@dbname) <> 1   
BEGIN 
    -- This is not the primary replica, exit without error. 
END 
-- This is the primary replica, continue to run the job...