SQL Tools :: Not Able To Clear Data Within Session Of Extended Events Unlike Trace
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.
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 );
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()
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 ?
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.
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
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?
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')
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.
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)
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?
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?
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.
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.
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
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.
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.
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.
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 .
This is for SQL Server 2005 SP4 Build 5266. We have been having performance issues in production. There are tight deadlines to be met and it is important that they are solved promptly.
Yesterday we replicated the situation in the acceptance testing environment. The jobs take 8 hours to run and we started at 2:00 PM.
Just before the jobs ran I set up an SQL Server Profiler trace to catch processes with a duration of longer then 12 seconds. I set it to save the results to a database table.
Last night I checked the table at 5:00 PM and there were entries in the table. However, I could be mistaken.
At 9:00 PM I checked the table and it was empty.
This morning I arrived at work and checked SQL Server Profiler. The trace was running and within SQL Server Profiler, there are 100s of results. I stopped the trace. However, checking the table, it is empty.
I thought I would be able to save the trace results to a file. When I chose "Save As" from the file menu, all the options are greyed out (trace file, trace template, trace table, etc).
The results are there but there is no way of saving them and no way of exporting them. How could this have happened?
Is there a location, where SQL Server Profiler saves the results in a temporary space. I may be able to open them and retrieve them. How can I save the results? Why are all my options greyed out?
Hello experts. I have been searching for anything about this but found very little. What are the events logged in SQL Server Error Logs aside from Successful/Failed Login, Backup/Restore/Recover database and, start/init sql server? Can we configure this to log other events, like CREATE or DBCC events for example? If so, how? Thanks a lot.
What is the best way to empty out a table to reset its identity field back to 1?
I was going to do "Generate SQL Script" for all the tables I wanted to reset and then drop and re-create each table. Is there a better way to empty out all of your tables?
hi I would like to clear all data in a table called ... How do I do that - and before I do it I'd like the data copied to a another table as a backup .... Please guide me ..... Thanks in advance .....
I need to load a database with new data, from an existing parallelsystem, but the database schema has changed and I did not make a script to do the changes. Sure wish I had. So, now I would like to copy the data from the existing parallel system into the new SQL database that has the correct schema. I have built the new database from the existing changed database. Now I would like to know if there is an easy way to clear the data out of all the tables, then copy all the data from the old schema into the new schema's tables.Thanks!Vic
I am sorry to post this simple question here but I could not find a right category thread to post this.
I am learning SQL Server 2005 and I have a very simple question. I have already set up several tables and setup relations between them and have loaded data into tables. How do I clear all the data in tables ?
Purpose - relate Server to Software, and Server to App and display it in power view.Current State - I am able to display that Server/Software and Server/App combos separately in power view. However when I add Server/Software/App it throws the warning as seen below. This leads me to believe the relationships aren't transitive so to speak.
Supporting Info - v_gs_installedsoftware is the software table. It relates to v_r_system which is the server table through resource id. The software table can have many rows with the same resource id, however the server table only has unique resourceids (think of it as a server can have many software products installed). Table1 is the application table, it relates to the v_r_system table through the resourceid. Each server from the server table can have many applications that it actually plays a role in (think of a web server that hosts multiple websites for different business units).
I am using the SharePoint adapters from Codeplex that allow me to use SharePoint source and destination tasks in SSIS for SQL Server 2008 and SharePoint 2010. I am able to pull the data from the SQL Server and insert it into the SharePoint List.
However, I prefer to just have fresh data every time, so I'd like to add a step to delete all the items in the list before inserting the new ones. Is there a way I can configure the SharePoint SSIS destination task to clear all the items before I insert new ones?
I'm new on ASP.NET 2.0Can anyone tell me how to get data from SQL to Session properties? In Classic ASP, it looks very simple as below.dim connset conn = server.createobject("adodb.recordset")rssql = "select myid, mypw from mydb where myid = '"& request("myid") &"' and mypw = '"& request("mypw") &"'"set rs = conn.execute(rssql)if rs.eof = true thensession("myid") = rs("myid")session("mypw") = rs("mypw")end if How to do the same things on ASP.NET?Many thanks!
Hiya!I've combed the SQL Server 2000 online help but I don't see anythingakin to Sybase ASE's 'montor' views - equivalent to Oracle's V$views. The views are performance views which contain per sessioninformation such as:- SPID- number of logical read/write and physical read I/Os accumulatedthus far- CPU accumulated- Memoryetc.Does anyone know if I can snarf that data from SQL Server 2000?Thx!--Pablo Sanchez, Blueoak Database Engineeringhttp://www.blueoakdb.com
I'm trying to write data from a session into database but it won't work. Could someone help me what is wrong with this.
cobjDT = Session("cart") For each cobjDR in cobjDT.rows Dim cmdInsert2 as New SQLCommand("order_details", loConn) cmdInsert2.CommandType = CommandType.StoredProcedure
cmdInsert2.Parameters("@Mangd").Value = Request(cobjDR("Quantity")) loConn.Open() cmdInsert2.ExecuteNonQuery() loConn.Close() next
When I execute this an error message comes
Server Error in '/examen' Application.
Input string was not in a correct format.
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.
Exception Details: System.FormatException: Input string was not in a correct format.
Source Error:
Line 78: cmdInsert2.Parameters("@Mangd").Value = Request(cobjDR("Quantity"))Line 79: loConn.Open()Line 80: cmdInsert2.ExecuteNonQuery()Line 81: loConn.Close()Line 82: next
[FormatException: Input string was not in a correct format.] System.Data.SqlClient.SqlCommand.ExecuteReader(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream) +723 System.Data.SqlClient.SqlCommand.ExecuteNonQuery() +194 ASP.TMP3thkwo1d0w_aspx.Page_Load(Object Sender, EventArgs E) in D:lofa.mine.nuexamenmembersTMP3thkwo1d0w.aspx:80 System.Web.UI.Control.OnLoad(EventArgs e) +67 System.Web.UI.Control.LoadRecursive() +35 System.Web.UI.Page.ProcessRequestMain() +731
Version Information: Microsoft .NET Framework Version:1.1.4322.573; ASP.NET Version:1.1.4322.573
I use same character types in storedProcedure what they are in the database and when I call the SP on my page the char types are same as they are in the SP
Does anyone know how to hook up to data flow pipeline events via custom solution (C#)? I am trying to write code to log start and end times of components(lookup,merge joins etc) in a data flow task. I tried with a class inheriting from the EventsProvider class but it didn't work as this is only for container tasks. Any ideas will be greatly appreciated.
