DAC - What to Execute when Connected?

  • Comments posted to this topic are about the item DAC - What to Execute when Connected?

    Rudy

  • Nice article. Anyone care to spend 20 minutes doing copy/paste work to put all that code in a single file and test it so that this article can actually usable?

  • Interesting article.

    Just a note - xp_fixeddrives doesn't return any space info on mount points in the filesystem below the drive letters. If you have database file in such locations thats an important point.

    Nigel Moore
    ======================

  • Ninja's_RGR'us (12/19/2008)


    Nice article. Anyone care to spend 20 minutes doing copy/paste work to put all that code in a single file and test it so that this article can actually usable?

    you mean something like this

    USE master

    GO

    -- This stored procedure will give you infomation on the SQL server in question.

    -- Connect with DAC and then execute this stored procedure located in the master database

    CREATE PROC sp_dba_DAC

    AS

    SELECT '*** Start of DAC Report ***'

    SELECT '-- Shows SQL Servers information'

    EXEC ('USE MASTER')

    SELECT

    CONVERT(char(20), SERVERPROPERTY('MachineName')) AS 'MACHINE NAME',

    CONVERT(char(20), SERVERPROPERTY('ServerName')) AS 'SQL SERVER NAME',

    (CASE WHEN CONVERT(char(20), SERVERPROPERTY('InstanceName')) IS NULL

    THEN 'Default Instance'

    ELSE CONVERT(char(20), SERVERPROPERTY('InstanceName'))

    END) AS 'INSTANCE NAME',

    CONVERT(char(20), SERVERPROPERTY('EDITION')) AS EDITION,

    CONVERT(char(20), SERVERPROPERTY('ProductVersion')) AS 'PRODUCT VERSION',

    CONVERT(char(20), SERVERPROPERTY('ProductLevel')) AS 'PRODUCT LEVL',

    (CASE WHEN CONVERT(char(20), SERVERPROPERTY('ISClustered')) = 1

    THEN 'Clustered'

    WHEN CONVERT(char(20), SERVERPROPERTY('ISClustered')) = 0

    THEN 'NOT Clustered'

    ELSE 'INVALID INPUT/ERROR'

    END) AS 'FAILOVER CLUSTERED',

    (CASE WHEN CONVERT(char(20), SERVERPROPERTY('ISIntegratedSecurityOnly')) = 1

    THEN 'Integrated Security '

    WHEN CONVERT(char(20), SERVERPROPERTY('ISIntegratedSecurityOnly')) = 0

    THEN 'SQL Server Security '

    ELSE 'INVALID INPUT/ERROR'

    END) AS 'SECURITY',

    (CASE WHEN CONVERT(char(20), SERVERPROPERTY('ISSingleUser')) = 1

    THEN 'Single User'

    WHEN CONVERT(char(20), SERVERPROPERTY('ISSingleUser')) = 0

    THEN 'Multi User'

    ELSE 'INVALID INPUT/ERROR'

    END) AS 'USER MODE',

    CONVERT(char(30), SERVERPROPERTY('COLLATION')) AS COLLATION

    SELECT '-- Shows top 5 high cpu used statemants'

    SELECT TOP 5 total_worker_time/execution_count AS [Avg CPU Time],

    SUBSTRING(st.text, (qs.statement_start_offset/2)+1,

    ((CASE qs.statement_end_offset

    WHEN -1 THEN DATALENGTH(st.text)

    ELSE qs.statement_end_offset

    END - qs.statement_start_offset)/2) + 1) AS statement_text

    FROM sys.dm_exec_query_stats AS qs

    CROSS APPLY sys.dm_exec_sql_text(qs.sql_handle) AS st

    ORDER BY total_worker_time/execution_count DESC;

    SELECT '-- Shows who so logged in'

    SELECT login_name ,COUNT(session_id) AS session_count

    FROM sys.dm_exec_sessions

    GROUP BY login_name;

    SELECT '-- Shows long running cursors'

    EXEC ('USE master')

    SELECT creation_time ,cursor_id

    ,name ,c.session_id ,login_name

    FROM sys.dm_exec_cursors(0) AS c

    JOIN sys.dm_exec_sessions AS s

    ON c.session_id = s.session_id

    WHERE DATEDIFF(mi, c.creation_time, GETDATE()) > 5;

    SELECT '-- Shows idle sessions that have open transactions'

    SELECT s.*

    FROM sys.dm_exec_sessions AS s

    WHERE EXISTS

    (

    SELECT *

    FROM sys.dm_tran_session_transactions AS t

    WHERE t.session_id = s.session_id

    )

    AND NOT EXISTS

    (

    SELECT *

    FROM sys.dm_exec_requests AS r

    WHERE r.session_id = s.session_id

    );

    SELECT '-- Shows free space in tempdb database'

    SELECT SUM(unallocated_extent_page_count) AS [free pages],

    (SUM(unallocated_extent_page_count)*1.0/128) AS [free space in MB]

    FROM sys.dm_db_file_space_usage;

    SELECT '-- Shows total disk allocated to tempdb database'

    SELECT SUM(size)*1.0/128 AS

    FROM tempdb.sys.database_files

    SELECT '-- Show active jobs'

    SELECT DB_NAME(database_id) AS [Database], COUNT(*) AS [Active Async Jobs]

    FROM sys.dm_exec_background_job_queue

    WHERE in_progress = 1

    GROUP BY database_id;

    SELECT '--Shows clients connected'

    SELECT session_id, client_net_address, client_tcp_port

    FROM sys.dm_exec_connections;

    SELECT '--Shows running batch'

    SELECT * FROM sys.dm_exec_requests;

    SELECT '--Shows currently blocked requests'

    SELECT session_id ,status ,blocking_session_id

    ,wait_type ,wait_time ,wait_resource

    ,transaction_id

    FROM sys.dm_exec_requests

    WHERE status = N'suspended'

    SELECT '--Shows last backup dates ' as ' '

    SELECT B.name as Database_Name,

    ISNULL(STR(ABS(DATEDIFF(day, GetDate(),

    MAX(Backup_finish_date)))), 'NEVER')

    as DaysSinceLastBackup,

    ISNULL(Convert(char(10),

    MAX(backup_finish_date), 101), 'NEVER')

    as LastBackupDate

    FROM master.dbo.sysdatabases B LEFT OUTER JOIN msdb.dbo.backupset A

    ON A.database_name = B.name AND A.type = 'D' GROUP BY B.Name ORDER BY B.name

    SELECT '--Shows jobs that are still executing' as ' '

    exec msdb.dbo.sp_get_composite_job_info NULL, NULL, NULL, NULL, NULL, NULL, 1, NULL, NULL

    SELECT '--Shows failed MS SQL jobs report' as ' '

    SELECT name FROM msdb.dbo.sysjobs A, msdb.dbo.sysjobservers B WHERE A.job_id = B.job_id AND B.last_run_outcome = 0

    SELECT '--Shows disabled jobs ' as ' '

    SELECT name FROM msdb.dbo.sysjobs WHERE enabled = 0 ORDER BY name

    SELECT '--Shows avail free DB space ' as ' '

    exec sp_MSForEachDB 'Use ? SELECT name AS ''Name of File'', size/128.0 -CAST(FILEPROPERTY(name, ''SpaceUsed'' )

    AS int)/128.0 AS ''Available Space In MB'' FROM .SYSFILES'

    SELECT '--Shows total DB size (.MDF+.LDF)' as ' '

    set nocount on

    declare @name sysname

    declare @sql nvarchar(600)

    -- Use temporary table to sum up database size w/o using group by

    create table #databases (

    DATABASE_NAME sysname NOT NULL,

    size int NOT NULL)

    declare c1 cursor for

    select name from master.dbo.sysdatabases

    -- where has_dbaccess(name) = 1 -- Only look at databases to which we have access

    open c1

    fetch c1 into @name

    while @@fetch_status >= 0

    begin

    select @sql = 'insert into #databases

    select N'''+ @name + ''', sum(size) from '

    + QuoteName(@name) + '.dbo.sysfiles'

    -- Insert row for each database

    execute (@SQL)

    fetch c1 into @name

    end

    deallocate c1

    select DATABASE_NAME, DATABASE_SIZE_MB = size*8/1000 -- Convert from 8192 byte pages to K and then convert to MB

    from #databases order by 1

    select SUM(size*8/1000)as '--Shows disk space used - ALL DBs - MB ' from #databases

    drop table #databases

    SELECT '--Show hard drive space available ' as ' '

    EXEC master..xp_fixeddrives

    SELECT '*** End of Report **** '

    GO

    -------------------------------------------------------------
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  • Thanks you for providing better code. I'm hoping that eventually we'll have a a nice stored procedure that you can execute when/if the SQL server gets into trouble.

    Is there any other information you think should be collected?

    Rudy

    Rudy

  • you can call

    wmic volume get caption,capacity,freespace

    to get the freespace on all drives including mount points.

    Make this call from xp_cmdshell and place the results into a table if you want to processs them further.

    Nigel Moore
    ======================

  • Thanks to Ninja for providing the code in a copy/paste format. Not sure why the article's code is showing up that way.

    By the way, if you copy the complete article and paste it into MS Word, the code is now converted to a usable format.

    Rudy

    Rudy

  • NP, it's easy to ask for something and wait for someone to have it done ;).

  • Does this stored procedure SQL 2K or is it for 2005/08 only. I have had a look but get a number of errors.

  • This works on SQL 2005/2008, x32bit and x64bit, stand alone or on a multi instance installation.

    DAC is not available in SQL 2000 or earlier, but I wish it did.

    Rudy

    Rudy

  • Our abbreviations are beginning to overlap often. Since I like audo, I see "DAC" and I think "Digital to Analogue Converter."

    The greatest enemy of knowledge is not ignorance, it is the illusion of knowledge. - Stephen Hawking

  • Thanks for the updated code. this code will be a great asset for all dba's.

  • We learn every day, but my SSMS complains about the line:

    "CROSS APPLY sys.dm_exec_sql_text(qs.sql_handle) AS st".

    I do not know what is going wrong.

    Leendert.

  • Are you executing the code on a SQL 2005? Does not work on SQL 2000.

    Here is the link for more information on CROSS APPLY

    http://msdn.microsoft.com/en-us/library/ms177634.aspx

    Rudy

    Rudy

  • Rudy, thanks.

    I am using SQL Server 2005, Leendert.

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