DB Engine :: How To Add Execution Plan To Extended Events Results Also When Capturing Deadlock Event
Oct 24, 2015
We know we can use the event lock_deadlock and xml_deadlock_report to capture the deadlock info, however I also want to capture the execution plans for all of the SPIDs in the deadlock graph, how to output the execution plans to the extended events trace results either ? such as if there is an action for execution plan or workaround for it ?If there is no built in action for execution plan , may I know if we can add the customized info to the extended events results file also ? Such as when the deadlock related event happens , then we can run a query to get some info ,then added the info along with other info such as sql_text, dbname etc to the events trace results file either ? The reason is if we also know the execution plans when the deadlock happens, it is useful to turning the query based on the execution plans to reduce deadlock happening .
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Dec 9, 2014
I am learning Extended event to capture deadlock which already happened, for this in my SQL SERVER 2012.. I am simulating a deadlock . With [URL]... where given a query to find the deadlock details using extended event here is the code..Retrieve from Extended Events in 2012.
SELECT XEvent.query('(event/data/value/deadlock)[1]') AS DeadlockGraph
FROM ( SELECT XEvent.query('.') AS XEvent
FROM ( SELECT CAST(target_data AS XML) AS TargetData
FROM sys.dm_xe_session_targets st
JOIN sys.dm_xe_sessions s
[code]...
This code creates a deadlock but when i run the above Extended events query to get the details of deadlock, it doesnot display any results.
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Jun 17, 2014
I have an existing EE setup that captures all failing queries (see code below). The problem is that I also want to somehow capture RPC_starting so that I can see which parameters are passed in whenever a query fails. Is there a way to somehow capture those two events (error_reported & rpc_starting), but only capture rpc_starting when there is actually an error reported?Or maybe just an event on rpc_starting and somehow filter to only capture when there is an error?
Existing error_reported EE code:
CREATE EVENT SESSION [what_queries_are_failing] ON SERVER ADD EVENT sqlserver.error_reported (
ACTION(sqlserver.sql_text, sqlserver.tsql_stack, sqlserver.database_id, sqlserver.session_id,
package0.collect_system_time, sqlserver.transaction_id, sqlserver.username, sqlserver.client_hostname)
[code]....
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Jan 27, 2015
I do have the following Extended Event session on my Dev box;
CREATE EVENT SESSION [sp_showplan] ON SERVER
ADD EVENT sqlserver.query_post_execution_showplan(SET collect_database_name=(1)
ACTION(sqlserver.plan_handle)
WHERE ([package0].[equal_uint64]([object_type],(8272)) AND [sqlserver].[equal_i_sql_unicode_string]([object_name],N'MyStoreProcedure')))
ADD TARGET package0.event_file(SET filename=N'E:DBA_AuditSP_Exec.xel',metadatafile=N'E:DBA_AuditSP_Exec.xem')
WITH (MAX_MEMORY=4096 KB,EVENT_RETENTION_MODE=ALLOW_SINGLE_EVENT_LOSS,MAX_DISPATCH_LATENCY=30 SECONDS,MAX_EVENT_SIZE=0 KB,MEMORY_PARTITION_MODE=NONE,TRACK_CAUSALITY=OFF,STARTUP_STATE=OFF)
GO
The idea is being able to capture the execution plan when the program invokes the store procedure, regardless of the database.
This works on my Dev box. When I manually trigger "MyStoreProcedure" from database A , the event is saved. The same thing happens when I do that from database B. Ok ... so far, so good.
So I went to the live production environment and setup my Extended Events session. But it's saving nothing. I was able to check that the store procedure was executed on several databases but my extended events session never grabbed the plan.
What could be the reason for this? Memory starvation maybe? Is there something I am doing wrong?
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Oct 6, 2014
I've setup a deadlock monitor using extended events like this.
CREATE EVENT SESSION [deadlock] ON SERVER
ADD EVENT sqlserver.lock_deadlock(
ACTION(package0.process_id,sqlserver.client_app_name,sqlserver.client_hostname,
sqlserver.database_id,sqlserver.database_name,sqlserver.plan_handle)
[Code] ....
Deadlock happened couple of days ago. I'm trying to determine the cause of deadlocks. What script should I use to pull that information to see what objects/processes caused deadlock?
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Feb 25, 2014
I am trying to use xquery to get event data back from extended events. I am trying to use some sample data from Grant Fritchey but I am getting null records back. Below is the xml - I just want to retrieve a distinct list of the client_hostname and client_app_name.
<event name="login" package="sqlserver" timestamp="2014-02-19T23:53:54.299Z">
<data name="is_cached"><value>true</value></data><data name="is_dac">
<value>false</value></data><data name="database_id"><value>7</value>
</data><data name="packet_size"><value>8000</value></data><data name="options">
[Code] ....
The query I have that doesn't work is :
WITH xEvents AS
(SELECT object_name AS xEventName,
CAST (event_data AS xml) AS xEventData
FROM sys.fn_xe_file_target_read_file
('C:LoginTraceShared_0*.xel', NULL, NULL, NULL))
SELECT distinct top 1000 xEventName,
xEventData.value('(/event/data[@action_name=''Client_APP_Name'']/value)[1]','varchar') Client_APP_Name,
xEventData.value('(/event/data[@action_name=''Client_Host_Name'']/value)[1]','varchar') Client_Host_Name
FROM xEvents
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Nov 13, 2006
Hi All
When running an SSIS Package from BIDS, we get to see the "Progress" tab which explains us the progress of the SSIS Package. During production, is there any way to capture this log. I am interested in using this as a log file for each run of my SSIS package.
Thanks,
S Suresh
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Jun 16, 2015
I need to find any stored procedures that have not been used over a certain time period.
I have set up an extended events session to gather sp_statement_starting and _completed.
The trace returns the object_id's of many stored procedures. I then query the sys.procedures and plug in the object_id to return the stored proc name.
Do I have to repeat this process for every different object_id or is there a way I can query the trace results, using the object_id as my search criteria as one query ?
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Mar 20, 2008
What can be te answer of this question ?
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Jan 25, 2012
I have two extended events sessions running on a server. I do have sql jobs that automatically stop the XE sessions and import the results to working tables. I see two "ALTER EVENT SESSION XXXX ON SERVER STATE = STOP" statements that are being executed for more than 2 days, the wait types are XE_SERVICES_MUTEX and PREEMPTIVE_XE_SESSIONCOMMIT. This is not the first time I see this behavior.I do not want to kill the sessions (I guess the sessions won't die anyway) neither restart the sql service
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Feb 3, 2014
I am using this code for LongRunning Queries.
CREATE EVENT SESSION LongRunningQuery
ON SERVER
ADD EVENT sqlserver.sql_statement_completed
(
ACTION (sqlserver.sql_text, sqlserver.tsql_stack)
WHERE sqlserver.sql_statement_completed.duration > 60000
[Code] ...
Here Instead of writing to XML file how can send an EMAIL if a query runs more than 1 minute in my server ?
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Jun 4, 2015
how to eliminate a key lookup from the execution plan
SET TRANSACTION ISOLATION LEVEL READ COMMITTED
SET NOCOUNT ON
SELECT COUNT(ph.lid) AS Total
FROM PLB ph
WHERE ph.lPhysician = @Physician
AND ph.BSF = CAST(0 AS bit)
[code]....
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Mar 19, 2007
Does anyone know if it is possible to access the execution plan results programmatically through a stored procedure or .NET assembly? I have the code sample
SET SHOWPLAN_XML ON; query... SET SHOWPLAN_XML OFF;
but it can only be run from the interface. I have tried a couple of solutions including dynamic sql to try to capture the results in a variable or file with no luck.
Does anyone know of a way to programmatically capture this information? We are doing some research with distributed query processing of dynamically generated queries using multiple processing nodes, and it would be helpful to know an estimate of how large the query is before sending it away to be processed.
I have looked at the dm_exec_query_stats view; but it can only be run on a query that has already been executed. I need to know the execution plan before the query is executed. If there is a way to get a query to show up in this view without being executed, then that would work as well.
Thanks -- MT
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Jul 20, 2005
I'm trying to add functionality to a VB 6 application allowingcustomer service to add a customer number to a new customer.Customers are added to the database by sales personnel, and aprospective customer may have multiple rows due to projected ordersfor multiple products. Customer numbers are assigned when a newcustomer makes their first order.I'm using a DataGrid connected to an ADO Data Control. The datacontrol is connected to a view in SQL Server using the 'distinct'directive (I know it's not updatable) to show only one line per newcustomer. What I wish to do is capture the update event (probablythrough the FieldChangeComplete routine of the data control), manuallyassign the newly entered customer number to all appropriate rows inthe database, and cancel the update event with no notifications.I'm having two problems:1. I can't capture the newly entered customer number. The Textproperty of the DataGrid returns the old value of the cell instead ofthe newly entered value. How do I get the edited value?2. Even though I set adStatus = adStatusCancel in theFieldChangeComplete routine, I get a Microsoft DataGrid Control dialogstating 'Operation was Canceled'. How do I avoid this notification?
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Jun 2, 2015
Recently we migrated our environment to 2012.
We are planning to implement Xevents in all the servers in place of Trace files and everything is working fine.
Is it possible to configure Extended event to trigger a mail whenever any event (example dead lock) occurs.
I have gone through so many websites but i never find.
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Oct 6, 2015
SQL Server 2012 Performance Dashboard Main advices me this:
Since the application is from a vendor and I have no control over its code, how can improve this sitation?
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Jul 7, 2006
The benefit of the actual execution plan is that you can see the actual number of rows passing through each step - compared to the estimated number of rows.But what about the "cost percentages" ?I believe I've read somewhere that these percentages is still just an estimate and is not based on the real execution.Does anyone know this and preferable have a link to something that documents it?Thanks
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Oct 12, 2015
I can only do one match at a time -- Like can only do either the sql_statement_(start and end), or sp_statement_(start or end). Is there any way to capture both in the same session? Or since I am adding both the events in the ADD EVENT section, can I query it somehow to get unmatched SP or SQL?
Code:
USE master;
GO
-- Create the Event Session
IF EXISTS(SELECT *
FROM sys.server_event_sessions
WHERE name='TimedOutSQL')
[code]...
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Jan 14, 2015
I want to gather (and filter by) client ip address in an extended events session. So far, I have the sqlserver.login event added, but I can find no way to get client ip address added to the action or predicate.
I can filter by the pred_source field "session_nt_domain" or "nt_domain" but this is not always populated by all logins and also, this domain only lists machine name, such as FRED, as opposed to the full domain FRED.foo.bar.
Is it possible to gather login client ip address in an extended events session? Surely internal SQL Server processes have access to it because the login audit can populate client ip address.
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Oct 25, 2011
My SQL Server 2005 SP4 on Windows 2008 R2 is flooded with the below errors:-
Date 10/25/2011 10:55:46 AM
Log SQL Server (Current - 10/25/2011 10:55:00 AM)
Source spid
Message
Event Tracing for Windows failed to send an event. Send failures with the same error code may not be reported in the future. Error ID: 0, Event class ID: 54, Cause: (null).
Is there a way I can trace it how it is coming? When I check input buffer for these ids, it looks like it is tracing everything. All the general application DMLs are coming in these spids.
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Apr 15, 2015
When you view the Extended Events "Watch Live Data" is the duration in milliseconds or microseconds? I'm assuming it's milliseconds, but if you look at the timestamp difference from start to complete it doesn't add up to the duration amount? It looks like it's just the difference between the timestamps?
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Jun 4, 2015
I use this code in a utility procedure (for performance testing) but it is really slow.
For example, a session with three events is taking 5 seconds to complete this query:
DECLARE @xml xml=
(
SELECT CAST(xet.target_data AS xml)
FROM sys.dm_xe_session_targets AS xet
JOIN sys.dm_xe_sessions AS xe
ON (xe.address = xet.event_session_address)
WHERE xe.name = @name
);
with data as
(
select
convert(varchar(128),convert(varbinary(128),'0x'+n.value('(action[@name="context_info"]/value/text())[1]','varchar(128)'),1)) context
, n.value('(data[@name="duration"]/value/text())[1]','int')/1000.0 duration
, n.value('(data[@name="cpu_time"]/value/text())[1]','bigint')/1000.0 cpu_time
, n.value('(data[@name="physical_reads"]/value/text())[1]','bigint') physical_reads
[code].....
So, I was wondering (considering the buffer is usually only holding a few hundred events)
1. Is this the wrong way to query data from a ring buffer?
2. Is there any way to make this code quicker?
3. Is it better to target a file store rather than a ring buffer for this?
select geometry::STGeomFromWKB(0x0106000000020000000103000000010000000B0000001000000000000840000000000000003D
D8CCCCCCCCCC0840000000000000003DD8CCCCCCCCCC08408014AE47E17AFC3F040000000000104000
[Code] .....
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Jun 11, 2015
I am wanting to get/filter on all queries and procs that take longer than 2 seconds to run (I'll balance real values later) but I'm not sure which Action out of the XE that I need.
I am using SQL Server 2014 and thought I had used sqlserver.sql_statement_completed.duration > 2000 in a previous version.
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Oct 14, 2014
In the past, I've combined server side traces with Perfmon successfully, which is pretty useful, I know that. I would like to do the same with Extended Events, so I can correlate and analyze the server side as well.
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Mar 4, 2015
I wanted to demonstrate something about CXPACKET wait type. For the purpose of this demo I've created a query in AdventureWorks database that uses a parallel query plan, an extended events session that captured the wait statistics for a single session and a query that shows the extended event's data. I ran it and it worked fine. Then I dropped and recreated the event session (to clear the data), in a new window I wrote a transaction that updated the table fallowed by waitfor statement so the first query will be blocked for few seconds and ran the whole thing again. The select statement was blocked as expected (ran for 9 seconds instead on 1 second as it ran without the blocking), but the wait stats that I got were almost identical to the those that I got without blocking the query.
--Query that uses parallel query plan
With MyCTE as (
select top 50 * from Sales.SalesOrderHeader)
select top 10000 * from Sales.SalesOrderHeader, MyCTE
order by newid()
[code]....
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Feb 19, 2015
I know very little about Extended Events, but I know it is supposed to be more powerful than Profiler. The SQL Instance involved is 2008R2. I was asked whether we could capture when a stored proc was called with a certain parameter. So for example, if dbo.usp_mystoredproc is called and is passed a value of '12345a' for @customer, can that be captured? I would want to know the time it was called, the parameter and parameter value. Probably would be interested in the SPID or LoginName as well.
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Nov 10, 2015
I have created a session in extended events and want to frequently monitor the events that i have filtered .The problem i am facing is i am not able to clear the previous data as we do it in SQL trace. i am able to see all the data that is occupied till now.whenever i start the test i want the current data only to be displayed.The work around is either delete the session and create a new one every-time which i do not want to do .I am able to see the CLEAR DATA FROM TABLE button but it is in Disabled state all the time.
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Jun 19, 2015
I am setting up extended events more or less just fine, however I am a bit confused as to how to read and load them into a table for querying. In particular the offset part - is there a way to load just a given dates worth in?
I've got the files configured to be 20MB before rolling over, the XE is running all the time.
So if i load in the full file now, say that covers 2.5 days worth, when I load it again tomorrow to get the updated data I'm also reloading today, which is a waste?
I presume I am going about this wrong, but lack an example that really goes into detail of practicalities of loading this data.
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May 27, 2015
We are planning to convert or change all existing Traces to Extended Events in SQL server 2012. What is the procedure to convert custom traces. We have already created some below custom traces: like this we are planning to convert for all servers.
exec sp_trace_setevent @TraceID, 20, 23, @on
exec sp_trace_setevent @TraceID, 20, 8, @on
exec sp_trace_setevent @TraceID, 20, 12, @on
exec sp_trace_setevent @TraceID, 20, 64, @on
exec sp_trace_setevent @TraceID, 20, 1, @on
exec sp_trace_setevent @TraceID, 20, 21, @on
[code]...
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Jun 22, 2015
I have a table that holds log event records, that keep getting appended. I need to get the duration of the each event 0 which has other events before and after. How can I do this - to get event duration of event 0 and the cumulative.
ID Event Date
1 1 2015-06-21 21:01:44.457
2 1 2015-06-21 21:01:44.457
3 0 2015-06-21 21:02:04.780
4 1 2015-06-21 21:02:32.600
5 0 2015-06-21 21:02:57.967
6 1 2015-06-21 21:03:30.513
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Dec 11, 2006
Hi everyone,
I was wondering how do for 'Log Events' info going to Event Viewer Windows visor. Is it possible or it's just only private info for you SSIS.
Thanks for your input,
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Apr 21, 2006
Hi,
I'm writing a small query where I have a dynamic table name and dynamic condition for the criteria. In order to execute this, I need Exec command.
exec(select count(*) from @dynamictable where condition = @dynamiccond)
But here I want to capture the count from the select statement. Could any of you help me capture the results from exec command?
Thanks
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Jul 10, 2003
Hello Everyone,
I am backing up my all the databases (around 50 servers and 500 database) using scheduled jobs. I backup my transaction log files at every two hours of interval and databases on daily basis.
I have set option of "Write to Windows Application Event Log" - When job fails during the creation of job in the "Notification Tab" of Create New Job.
As per documentation SQL server automatically records some of the events to windows application event log. After succesful completion of Log backup and DB backup, event gets logged in Windows Application Event Log. And when job fails, I get two events logged in the Windows Application Event Log file, one due to my setting and other automatically by SQL Server.
Due to this Windows event log file is growing much faster and I have to clear it in every 3-4 days.
My quesiton - Is there a way such that to get only failures event logged in Windows Application event log file and any successful backup jobs should not go to Windows application event file?
Can any suggest some idea what should I do?
I am using SQL Server 2000 with SP3 on Windows 2000 Advanced server. Some of my databases are still using Version 7.0/6.5 on NT.
Thanks.
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