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odytrice/Sql Server Kill Processes.sql

Last active October 18, 2018 05:19
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Troubleshooting SQL Server
Raw
Sql Server Kill Processes.sql
# DANGER - Kills all processes for a specific database
-- DECLARE @SQL varchar(max);
-- SELECT @SQL = COALESCE(@SQL,'') + 'Kill ' + Convert(varchar, r.session_id) + ';' from sys.dm_exec_requests r left join sys.dm_os_waiting_tasks t
-- on r.session_id = t.session_id where r.session_id >= 50 and r.session_id <> @@spid
-- EXEC(@SQL)
Raw
Sql Server TroubleShooting CPU usage.sql
-- Find queries that take the most CPU overall
SELECT TOP 50
ObjectName = OBJECT_SCHEMA_NAME(qt.objectid,dbid) + '.' + OBJECT_NAME(qt.objectid, qt.dbid)
,TextData = qt.text
,DiskReads = qs.total_physical_reads -- The worst reads, disk reads
,MemoryReads = qs.total_logical_reads --Logical Reads are memory reads
,Executions = qs.execution_count
,TotalCPUTime = qs.total_worker_time
,AverageCPUTime = qs.total_worker_time/qs.execution_count
,DiskWaitAndCPUTime = qs.total_elapsed_time
,MemoryWrites = qs.max_logical_writes
,DateCached = qs.creation_time
,DatabaseName = DB_Name(qt.dbid)
,LastExecutionTime = qs.last_execution_time
FROM sys.dm_exec_query_stats AS qs
CROSS APPLY sys.dm_exec_sql_text(qs.sql_handle) AS qt
ORDER BY qs.total_worker_time DESC
-- Find queries that have the highest average CPU usage
SELECT TOP 50
ObjectName = OBJECT_SCHEMA_NAME(qt.objectid,dbid) + '.' + OBJECT_NAME(qt.objectid, qt.dbid)
,TextData = qt.text
,DiskReads = qs.total_physical_reads -- The worst reads, disk reads
,MemoryReads = qs.total_logical_reads --Logical Reads are memory reads
,Executions = qs.execution_count
,TotalCPUTime = qs.total_worker_time
,AverageCPUTime = qs.total_worker_time/qs.execution_count
,DiskWaitAndCPUTime = qs.total_elapsed_time
,MemoryWrites = qs.max_logical_writes
,DateCached = qs.creation_time
,DatabaseName = DB_Name(qt.dbid)
,LastExecutionTime = qs.last_execution_time
FROM sys.dm_exec_query_stats AS qs
CROSS APPLY sys.dm_exec_sql_text(qs.sql_handle) AS qt
ORDER BY qs.total_worker_time/qs.execution_count DESC
Raw
Sql Server TroubleShooting Memory usage.sql
/**********************************************************
* top procedures memory consumption per execution
* (this will show mostly reports &amp; jobs)
***********************************************************/
SELECT TOP 100 *
FROM
(
SELECT
DatabaseName = DB_NAME(qt.dbid)
,qt.dbid
,ObjectName = OBJECT_SCHEMA_NAME(qt.objectid,dbid) + '.' + OBJECT_NAME(qt.objectid, qt.dbid)
,DiskReads = SUM(qs.total_physical_reads) -- The worst reads, disk reads
,MemoryReads = SUM(qs.total_logical_reads) --Logical Reads are memory reads
,Executions = SUM(qs.execution_count)
,IO_Per_Execution = SUM((qs.total_physical_reads + qs.total_logical_reads) / qs.execution_count)
,CPUTime = SUM(qs.total_worker_time)
,DiskWaitAndCPUTime = SUM(qs.total_elapsed_time)
,MemoryWrites = SUM(qs.max_logical_writes)
,DateLastExecuted = MAX(qs.last_execution_time)
FROM sys.dm_exec_query_stats AS qs
CROSS APPLY sys.dm_exec_sql_text(qs.sql_handle) AS qt
GROUP BY DB_NAME(qt.dbid), qt.dbid, OBJECT_SCHEMA_NAME(qt.objectid,dbid) + '.' + OBJECT_NAME(qt.objectid, qt.dbid)
) T
ORDER BY IO_Per_Execution DESC
/**********************************************************
* top procedures memory consumption total
* (this will show more operational procedures)
***********************************************************/
SELECT TOP 100 *
FROM
(
SELECT
DatabaseName = DB_NAME(qt.dbid)
,ObjectName = OBJECT_SCHEMA_NAME(qt.objectid,dbid) + '.' + OBJECT_NAME(qt.objectid, qt.dbid)
,DiskReads = SUM(qs.total_physical_reads) -- The worst reads, disk reads
,MemoryReads = SUM(qs.total_logical_reads) --Logical Reads are memory reads
,Total_IO_Reads = SUM(qs.total_physical_reads + qs.total_logical_reads)
,Executions = SUM(qs.execution_count)
,IO_Per_Execution = SUM((qs.total_physical_reads + qs.total_logical_reads) / qs.execution_count)
,CPUTime = SUM(qs.total_worker_time)
,DiskWaitAndCPUTime = SUM(qs.total_elapsed_time)
,MemoryWrites = SUM(qs.max_logical_writes)
,DateLastExecuted = MAX(qs.last_execution_time)
FROM sys.dm_exec_query_stats AS qs
CROSS APPLY sys.dm_exec_sql_text(qs.sql_handle) AS qt
GROUP BY DB_NAME(qt.dbid), OBJECT_SCHEMA_NAME(qt.objectid,dbid) + '.' + OBJECT_NAME(qt.objectid, qt.dbid)
) T
ORDER BY Total_IO_Reads DESC
/**********************************************************
* top adhoc queries memory consumption total
***********************************************************/
SELECT TOP 100 *
FROM
(
SELECT
DatabaseName = DB_NAME(qt.dbid)
,QueryText = qt.text
,DiskReads = SUM(qs.total_physical_reads) -- The worst reads, disk reads
,MemoryReads = SUM(qs.total_logical_reads) --Logical Reads are memory reads
,Total_IO_Reads = SUM(qs.total_physical_reads + qs.total_logical_reads)
,Executions = SUM(qs.execution_count)
,IO_Per_Execution = SUM((qs.total_physical_reads + qs.total_logical_reads) / qs.execution_count)
,CPUTime = SUM(qs.total_worker_time)
,DiskWaitAndCPUTime = SUM(qs.total_elapsed_time)
,MemoryWrites = SUM(qs.max_logical_writes)
,DateLastExecuted = MAX(qs.last_execution_time)
FROM sys.dm_exec_query_stats AS qs
CROSS APPLY sys.dm_exec_sql_text(qs.sql_handle) AS qt
WHERE OBJECT_SCHEMA_NAME(qt.objectid,dbid) + '.' + OBJECT_NAME(qt.objectid, qt.dbid) IS NULL
GROUP BY DB_NAME(qt.dbid), qt.text, OBJECT_SCHEMA_NAME(qt.objectid,dbid) + '.' + OBJECT_NAME(qt.objectid, qt.dbid)
) T
ORDER BY Total_IO_Reads DESC
/**********************************************************
* top adhoc queries memory consumption per execution
***********************************************************/
SELECT TOP 100 *
FROM
(
SELECT
DatabaseName = DB_NAME(qt.dbid)
,QueryText = qt.text
,DiskReads = SUM(qs.total_physical_reads) -- The worst reads, disk reads
,MemoryReads = SUM(qs.total_logical_reads) --Logical Reads are memory reads
,Total_IO_Reads = SUM(qs.total_physical_reads + qs.total_logical_reads)
,Executions = SUM(qs.execution_count)
,IO_Per_Execution = SUM((qs.total_physical_reads + qs.total_logical_reads) / qs.execution_count)
,CPUTime = SUM(qs.total_worker_time)
,DiskWaitAndCPUTime = SUM(qs.total_elapsed_time)
,MemoryWrites = SUM(qs.max_logical_writes)
,DateLastExecuted = MAX(qs.last_execution_time)
FROM sys.dm_exec_query_stats AS qs
CROSS APPLY sys.dm_exec_sql_text(qs.sql_handle) AS qt
WHERE OBJECT_SCHEMA_NAME(qt.objectid,dbid) + '.' + OBJECT_NAME(qt.objectid, qt.dbid) IS NULL
GROUP BY DB_NAME(qt.dbid), qt.text, OBJECT_SCHEMA_NAME(qt.objectid,dbid) + '.' + OBJECT_NAME(qt.objectid, qt.dbid)
) T
ORDER BY IO_Per_Execution DESC
Raw
Sql Server TroubleShooting Part B.sql
SELECT TOP 10 SUBSTRING(qt.TEXT, (qs.statement_start_offset/2)+1,
((CASE qs.statement_end_offset
WHEN -1 THEN DATALENGTH(qt.TEXT)
ELSE qs.statement_end_offset
END - qs.statement_start_offset)/2)+1),
qs.execution_count,
qs.total_logical_reads, qs.last_logical_reads,
qs.total_logical_writes, qs.last_logical_writes,
qs.total_worker_time,
qs.last_worker_time,
qs.total_elapsed_time/1000000 total_elapsed_time_in_S,
qs.last_elapsed_time/1000000 last_elapsed_time_in_S,
qs.last_execution_time,
qp.query_plan
FROM sys.dm_exec_query_stats qs
CROSS APPLY sys.dm_exec_sql_text(qs.sql_handle) qt
CROSS APPLY sys.dm_exec_query_plan(qs.plan_handle) qp
ORDER BY qs.total_logical_reads DESC
Raw
Sql Server TroubleShooting Part C.sql
;WITH src AS
(
SELECT
[Object] = o.name,
[Type] = o.type_desc,
[Index] = COALESCE(i.name, ''),
[Index_Type] = i.type_desc,
p.[object_id],
p.index_id,
au.allocation_unit_id
FROM
sys.partitions AS p
INNER JOIN
sys.allocation_units AS au
ON p.hobt_id = au.container_id
INNER JOIN
sys.objects AS o
ON p.[object_id] = o.[object_id]
INNER JOIN
sys.indexes AS i
ON o.[object_id] = i.[object_id]
AND p.index_id = i.index_id
WHERE
au.[type] IN (1,2,3)
AND o.is_ms_shipped = 0
)
SELECT
src.[Object],
src.[Type],
src.[Index],
src.Index_Type,
buffer_pages = COUNT_BIG(b.page_id),
buffer_mb = COUNT_BIG(b.page_id) / 128
FROM
src
INNER JOIN
sys.dm_os_buffer_descriptors AS b
ON src.allocation_unit_id = b.allocation_unit_id
WHERE
b.database_id = DB_ID()
GROUP BY
src.[Object],
src.[Type],
src.[Index],
src.Index_Type
ORDER BY
buffer_pages DESC;
Raw
Sql Server TroubleShooting.sql
select session_id, status, command, blocking_session_id, wait_type, wait_time,
last_wait_type, wait_resource, r.[user_id] , DB_NAME(r.database_id), r.[context_info]
from sys.dm_exec_requests r where r.session_id >= 50 and r.session_id <> @@spid
ORDER BY r.wait_time DESC
select r.session_id, status, command, r.blocking_session_id, r.wait_type as [request_wait_type], r.wait_time as [request_wait_time], t.wait_type as [task_wait_type],
t.wait_duration_ms as [task_wait_time], t.blocking_session_id, t.resource_description from sys.dm_exec_requests r left join sys.dm_os_waiting_tasks t
on r.session_id = t.session_id where r.session_id >= 50 and r.session_id <> @@spid
DECLARE @sqltext VARBINARY(128)
SELECT @sqltext = sql_handle
FROM sys.sysprocesses
WHERE spid = 1645
SELECT TEXT
FROM sys.dm_exec_sql_text(@sqltext)
GO
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