/**Tempdb
session File usage
sys.dm_db_session_space_usage
: Returns the number of pages allocated and deallocated by each session for the
database.
sys.dm_exec_sessions:
Gives details about the sessions.
**/
SELECT
sys.dm_exec_sessions.session_id AS
[SESSION ID]
,DB_NAME(database_id) AS [DATABASE Name]
,HOST_NAME AS
[System Name]
,program_name AS
[Program Name]
,login_name AS [USER Name]
,status
,cpu_time AS [CPU TIME (in milisec)]
,total_scheduled_time
AS [Total Scheduled TIME (in milisec)]
,total_elapsed_time
AS
[Elapsed TIME (in milisec)]
,(memory_usage
* 8) AS
[Memory USAGE (in KB)]
,(user_objects_alloc_page_count
* 8) AS [SPACE Allocated FOR USER Objects (in KB)]
,(user_objects_dealloc_page_count
* 8) AS [SPACE Deallocated FOR USER Objects (in KB)]
,(internal_objects_alloc_page_count
* 8) AS [SPACE Allocated FOR Internal Objects (in KB)]
,(internal_objects_dealloc_page_count
* 8) AS [SPACE Deallocated FOR Internal Objects (in KB)]
,CASE is_user_process
WHEN
1 THEN
'user session'
WHEN
0 THEN
'system session'
END AS
[SESSION Type], row_count AS [ROW COUNT]
FROM
sys.dm_db_session_space_usage
INNER join
sys.dm_exec_sessions
ON sys.dm_db_session_space_usage.session_id = sys.dm_exec_sessions.session_id
Order by [status] ASC
GO
/**A long
running transaction may prevent cleanup of transaction log thus eating up all
log space available resulting space crisis for all other applications**/
SELECT
transaction_id AS [Transacton
ID],
[name] AS [TRANSACTION Name],
transaction_begin_time AS
[TRANSACTION BEGIN TIME],
DATEDIFF(mi,
transaction_begin_time, GETDATE()) AS [Elapsed TIME (in MIN)],
CASE transaction_type
WHEN 1 THEN 'Read/write'
WHEN 2 THEN
'Read-only'
WHEN 3 THEN
'System'
WHEN 4 THEN
'Distributed'
END AS
[TRANSACTION Type],
CASE transaction_state
WHEN 0 THEN 'The transaction has not
been completely initialized yet.'
WHEN 1 THEN 'The transaction has
been initialized but has not started.'
WHEN 2 THEN 'The transaction is
active.'
WHEN 3 THEN 'The transaction has
ended. This is used for read-only transactions.'
WHEN 4 THEN 'The commit process has
been initiated on the distributed transaction. This is for distributed
transactions only. The distributed transaction is still active but further
processing cannot take place.'
WHEN 5 THEN 'The transaction is in a
prepared state and waiting resolution.'
WHEN 6 THEN 'The transaction has
been committed.'
WHEN 7 THEN 'The transaction is
being rolled back.'
WHEN 8 THEN 'The transaction has
been rolled back.'
END AS
[TRANSACTION Description]
FROM sys.dm_tran_active_transactions
GO
/**Long running
Queries
sys.dm_exec_requests
: Returns information regarding the requests made to the database server.
**/
SELECT
HOST_NAME AS
[System Name],
program_name AS
[Application Name],
DB_NAME(database_id) AS [DATABASE
Name],
USER_NAME(USER_ID) AS [USER Name],
connection_id AS [CONNECTION ID],
sys.dm_exec_requests.session_id
AS [CURRENT SESSION ID],
blocking_session_id AS [Blocking SESSION ID],
start_time AS [Request START TIME],
sys.dm_exec_requests.status AS [Status],
command AS [Command Type],
(SELECT TEXT FROM sys.dm_exec_sql_text(sql_handle)) AS [Query TEXT],
wait_type AS [Waiting Type],
wait_time AS [Waiting Duration],
wait_resource AS [Waiting FOR Resource],
sys.dm_exec_requests.transaction_id
AS [TRANSACTION ID],
percent_complete AS [PERCENT Completed],
estimated_completion_time AS [Estimated COMPLETION TIME (in mili sec)],
sys.dm_exec_requests.cpu_time
AS
[CPU TIME used (in mili sec)],
(memory_usage
* 8) AS [Memory
USAGE (in KB)],
sys.dm_exec_requests.total_elapsed_time
AS [Elapsed TIME (in mili sec)]
FROM sys.dm_exec_requests
INNER join
sys.dm_exec_sessions
ON sys.dm_exec_requests.session_id
= sys.dm_exec_sessions.session_id
WHERE DB_NAME(database_id) = 'tempdb'
No comments:
Post a Comment