我该如何清理SSISDB?

时间:2014-02-14 13:58:11

标签: ssis sql-server-2012

当我设置时,我忽略了保留期。我的数据库变得非常大,所以我希望减小它的大小。如果我只是更改保留期(它是365),则会导致SSIS运行我的包时出现问题。我甚至以小增量更改了它,但删除语句会创建阻止新作业运行的锁。

任何想法如何解决这个问题?我考虑过只创建一个新的SSISDB。

4 个答案:

答案 0 :(得分:34)

菲尔·布拉默(Phil Brammer)遇到了关于SSIS目录的护理和喂养的其他一些事情,他在帖子Catalog Indexing Recommendations上介绍了这些内容。

根问题

根本问题是MS试图设计带有RI的SSIS,但它们是懒惰的,允许级联删除发生而不是显式处理它们。

  

开箱即用,新的SSIS 2012目录数据库(SSISDB)应用了一些基本索引,并将参照完整性设置为在大多数表之间进行级联删除。

     

输入SQL代理作业“SSIS服务器维护作业”。默认情况下,此作业设置为每天午夜运行,并使用两个目录参数来运行:“定期清理日志”和“保留期(天)”。设置完成后,维护作业将清除指定保留期之外的所有数据。

     

此维护作业从内部操作中一次删除循环中的10条记录,然后级联到下游的多个表中。在我们的例子中,我们每天有大约3000个操作记录要删除(一次10个!),从internal.operation_messages转换为160万行。那只是一张下游桌子!整个过程完全完全锁定了SSISDB数据库中的任何SELECT / INSERT数据

分辨率

在MS改变工作原理之前,支持的选项是

  

将维护作业计划移至适合您环境的更合适的时间

我知道在我目前的客户端,我们只在凌晨加载数据,因此SSISDB在营业时间内保持安静。

如果在安静期间运行维护作业不是一个选项,那么您正在考虑制作自己的删除语句,以尝试将级联删除添加到 suck less

在我目前的客户中,我们在过去10个月内每晚运行约200个套餐,并且还有365天的历史。我们最大的表格是一个数量级的。

Schema    Table                   RowCount
internal  event_message_context   1,869,028
internal  operation_messages      1,500,811
internal  event_messages          1,500,803

所有这些数据的驱动程序internal.operations中只有3300行,这与Phil关于这些数据呈指数增长的评论一致。

因此,确定要清除的operation_id以及从叶表中删除工作回到核心internal.operations表。

USE SSISDB;
SET NOCOUNT ON;
IF object_id('tempdb..#DELETE_CANDIDATES') IS NOT NULL
BEGIN
    DROP TABLE #DELETE_CANDIDATES;
END;

CREATE TABLE #DELETE_CANDIDATES
(
    operation_id bigint NOT NULL PRIMARY KEY
);

DECLARE @DaysRetention int = 100;
INSERT INTO
    #DELETE_CANDIDATES
(
    operation_id
)
SELECT
    IO.operation_id
FROM
    internal.operations AS IO
WHERE
    IO.start_time < DATEADD(day, -@DaysRetention, CURRENT_TIMESTAMP);

DELETE T
FROM
    internal.event_message_context AS T
    INNER JOIN
        #DELETE_CANDIDATES AS DC
        ON DC.operation_id = T.operation_id;

DELETE T
FROM
    internal.event_messages AS T
    INNER JOIN
        #DELETE_CANDIDATES AS DC
        ON DC.operation_id = T.operation_id;

DELETE T
FROM
    internal.operation_messages AS T
    INNER JOIN
        #DELETE_CANDIDATES AS DC
        ON DC.operation_id = T.operation_id;

-- etc
-- Finally, remove the entry from operations

DELETE T
FROM
    internal.operations AS T
    INNER JOIN
        #DELETE_CANDIDATES AS DC
        ON DC.operation_id = T.operation_id;

通常的警告适用 - 不要相信互联网上的randoms代码 - 使用ssistalk和/或系统表中的图表来识别所有依赖项 - 您可能只需要将删除操作分成较小的操作 - 您可以通过删除RI进行操作而受益,但一定要使用check选项重新启用它们,以便它们受信任。 - 如果操作持续时间超过4小时,请咨询您的dba

参考

答案 1 :(得分:1)

我创建了一个类似的存储过程来进行下面的归档。如果有任何错误,请告诉我。我不提供任何保证,但它对我来说很好。这段代码绝不是完美的,但我想分享(即使用临时表意味着一次只能运行一次,也许会话范围表会更好)

我遇到了一个问题,MS自己的清理程序会破坏LDF文件并长时间锁定表,并导致服务器空间不足。我决定先自己编写删除较大的表,然后删除操作表。下面的这个过程在日志空间中从不使用超过1GB的空间,并且在SSIS作业必须全天运行时,不会长时间锁定表,这是一个问题22。

首先它记录到表

CREATE TABLE [dbo].[ETL_SSIS_Operations_Archived](
    [id] [int] IDENTITY(1,1) NOT NULL,
    [operation_id_str] [varchar](900) NOT NULL,
    [event_messages_context] [int] NULL,
    [event_messages] [int] NULL,
    [operation_messages] [int] NULL,
    [num_operators] [int] NULL,
    [chunksize] [int] NULL,
    [DateStarted] [datetime] NOT NULL,
    [DateFinished] [datetime] NULL,
    [executionSecs] [int] NULL,
    [DelOperationsDateStarted] [datetime] NULL,
    [DelOperationsDateFinished] [datetime] NULL,
    [DelOperationsExecutionSecs] [int] NULL
) ON [PRIMARY]
GO

并使用临时表

CREATE TABLE [dbo].[tmp_etl_operations_id](
    [operation_id] [int] NULL,
    [dateCreated] [datetime] NULL default getdate()
) ON [PRIMARY]
GO

ALTER TABLE [dbo].[tmp_etl_operations_id] ADD  DEFAULT (getdate()) FOR [dateCreated]
GO

这是程序

    CREATE PROCEDURE [dbo].[sp_Archive_SSIDB_Catalogue]
AS
BEGIN

    DECLARE @MyCursor as CURSOR;
    DECLARE @l_operation_id int;
    declare @l_rows_del int = 1

    declare @l_operation_id_str varchar(8000) = ''
    declare @l_id int

    declare @l_event_message_context int = 0
    declare @l_event_messages        int = 0
    declare @l_operation_messages    int = 0

    declare @l_loop_num int = 1
    declare @C_BULK_NUM int = 100
    declare @C_CHUNK_SIZE int = 100000

    declare @l_last_rec char(1)

    SET @MyCursor = CURSOR FOR
       with params as
       (
           -- i round up the midnight that day, just so i know once it is done for the day it is done
           -- and if the real maintenance job was to run after this (just for the sake of it to double ensure nothing has been missed), but not actually need to do
           -- anything as its already done in here, no new operations would have snuck in due to the sliding system time
           SELECT cast(dateadd(day,1,GETDATE() - CONVERT(int,property_value)) as date)  ArchiveDate 
           FROM  ssisdb.[catalog].[catalog_properties]
           WHERE property_name = 'RETENTION_WINDOW'
       )
       select operation_id,iif(r=c,'Y','N') lastrec
       from
       (
           select operation_id,row_number() over (partition by null order by operation_id) r,count(*) over (partition by null) c
           FROM ssisdb.[internal].[operations] 
           WHERE ( [end_time] <= (select ArchiveDate from params)
           -- A special case when END_TIME is null, we will delete the records based on the created time 
           OR ([end_time] IS NULL AND [status] = 1 AND [created_time] <= (select ArchiveDate from params) ))
       ) x
       order by operation_id


    OPEN @MyCursor;
    FETCH NEXT FROM @MyCursor INTO @l_operation_id,@l_last_rec

    WHILE @@FETCH_STATUS = 0
    BEGIN
        set @l_operation_id_str = @l_operation_id_str+','+cast(@l_operation_id as varchar(100))

        if @l_loop_num = 1
        begin
           delete from tmp_etl_operations_id
           set @l_operation_id_str = cast(@l_operation_id as varchar(100))
        end

        insert into tmp_etl_operations_id (operation_id)  select @l_operation_id

        if @l_loop_num = @C_BULK_NUM or @l_last_rec='Y'
        begin
            set @l_loop_num = 1

            set @l_event_message_context = 0
            set @l_event_messages        = 0
            set @l_operation_messages    = 0

            insert into ETL_SSIS_Operations_Archived ([operation_id_str], num_operators,chunksize, event_messages_context, event_messages, operation_messages, datestarted)
            select @l_operation_id_str, @C_BULK_NUM,@C_CHUNK_SIZE,@l_event_message_context,@l_event_messages,@l_operation_messages,getdate()
            --where 0 = (select count(*) from ETL_SSIS_Operations_Archived where operation_id=@l_operation_id_str)

            set @l_id = Scope_Identity() 

            set @l_rows_del = @C_CHUNK_SIZE
            while (@l_rows_del >= @C_CHUNK_SIZE)
            begin
             delete top (@C_CHUNK_SIZE)
             from   ssisdb.internal.event_message_context
             where  operation_id in (select operation_id from etl..tmp_etl_operations_id)

             set @l_rows_del = @@ROWCOUNT
             set @l_event_message_context = @l_event_message_context+@l_rows_del

             update ETL_SSIS_Operations_Archived 
             set    event_messages_context = event_messages_context+@l_rows_del
             where  id = @l_id--operation_id = @l_operation_id_str

            end

            set @l_rows_del = @C_CHUNK_SIZE

            while (@l_rows_del >= @C_CHUNK_SIZE)
            begin
             delete top (@C_CHUNK_SIZE)
             from   ssisdb.internal.event_messages
             where  operation_id in (select operation_id from tmp_etl_operations_id)

             set @l_rows_del = @@ROWCOUNT
             set @l_event_messages = @l_event_messages+@l_rows_del

             update ETL_SSIS_Operations_Archived 
             set    event_messages = event_messages+@l_rows_del
             where  id = @l_id--operation_id = @l_operation_id_strwhere  operation_id = @l_operation_id_str 

            end

            set @l_rows_del = @C_CHUNK_SIZE
            while (@l_rows_del >= @C_CHUNK_SIZE)
            begin
             delete top (@C_CHUNK_SIZE)
             from   ssisdb.internal.operation_messages
             where  operation_id in (select operation_id from tmp_etl_operations_id)

             set @l_rows_del = @@ROWCOUNT
             set @l_operation_messages = @l_operation_messages+@l_rows_del

             update ETL_SSIS_Operations_Archived 
             set    operation_messages = operation_messages+@l_rows_del
             where  id = @l_id--operation_id = @l_operation_id_strwhere  operation_id = @l_operation_id_str -- 

            end

             update ETL_SSIS_Operations_Archived 
             set    DateFinished = getdate()
                   ,executionSecs =  Datediff(s, DateStarted, getdate())
                   ,DelOperationsDateStarted = getdate()
             where  id = @l_id--operation_id = @l_operation_id_strwhere  operation_id = @l_operation_id_str -- 


             -- lets delete the operations now
             delete --top (@C_CHUNK_SIZE)
             from   ssisdb.internal.operations
             where  operation_id in (select operation_id from tmp_etl_operations_id)

             update ETL_SSIS_Operations_Archived 
             set    DelOperationsDateFinished = getdate()
                   ,DelOperationsExecutionSecs =  Datediff(s, DelOperationsDateStarted, getdate())
             where  id = @l_id--operation_id = @l_operation_id_strwhere  operation_id = @l_operation_id_str -- 

        end
        else
        begin
            set @l_loop_num = @l_loop_num+1
        end

        FETCH NEXT FROM @MyCursor INTO @l_operation_id,@l_last_rec


    END

    CLOSE @MyCursor;
    DEALLOCATE @MyCursor;

END

答案 2 :(得分:0)

已从本文中找到有用的清理脚本:SQL SERVER – Huge Size of SSISDB – Catalog Database SSISDB Cleanup Script

    USE SSISDB
    GO
    DELETE FROM [internal].[executions] 
    GO
    DELETE FROM [internal].[executable_statistics]
    GO
    DELETE FROM [internal].[execution_component_phases] 
    GO
    DELETE FROM [internal].[execution_data_statistics] 
    GO
    DELETE FROM [internal].[execution_data_taps] 
    GO
    DELETE FROM [internal].[execution_parameter_values]
    GO
    DELETE FROM [internal].[execution_property_override_values]
    GO
    DELETE FROM [internal].[extended_operation_info]
    GO
    DELETE FROM [internal].[operation_messages]
    GO
    DELETE FROM [internal].[event_messages]
    GO
    DELETE FROM [internal].[event_message_context]
    GO
    DELETE FROM [internal].[operation_os_sys_info]
    GO
    DELETE FROM [internal].[operation_permissions]
    GO
    DELETE FROM [internal].[validations]
    GO

还可以考虑将数据库切换为简单恢复模式,但要为日志文件保留足够的空间。

答案 3 :(得分:-1)

运行此 sproc:

EXEC [internal].[cleanup_server_retention_window]