Questions tagged [extended-events]
SQL Server Extended Events (Extended Events) is a general event-handling system for server systems.
169
questions
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Compile Memory - Relationship between XE query_optimizer_memory_gateway and DMV sys.dm_exec_query_optimizer_memory_gateways
I’m studying and testing what happens during the compilation process of a query and how the Compile Memory is treated. You can have a look here (https://techcommunity.microsoft.com/t5/sql-server/multi-...
1
vote
1answer
42 views
Extended Events Login audit - Reduce login noise
We are looking for the optimal sql login audit solution, with usable filtering.
Thus far we have looked into Server Audits and profiler but have concluded that extended events
look most promising, ...
0
votes
1answer
48 views
Sql_text Data Missing When Querying Extended Event File Target Using TSQL
I set up an Extended Events session to capture SQL Server error events.
Below is the TSQL I used to create the XE session:
CREATE EVENT SESSION [ErrorCapture] ON SERVER
ADD EVENT sqlserver....
0
votes
1answer
42 views
Performance impact of Extended Events sessions looking at the exact same event type
I have created an extended events session that watches the module_start event type and filters down based on the object_name: equal_i_sql_unicode_string]([object_name])
The purpose of this session is ...
0
votes
1answer
9 views
What Name from Event Library?
I'm new in SQL Server's extended events and you can create your own session and select your own name in Event library.
From your experience, what name from event library have you selected in order to ...
0
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2answers
91 views
extended events rpc_completed duration does not matching with rpc_starting
Does rpc_completed duration (micro_sec) = rpc_starting.timestamp - rpc_completed.timestamp?
In my case, I saw a big difference between them. Duration is only few millsec, where rpc_starting.timestamp -...
0
votes
1answer
38 views
SQL Server Extended Events to Capture Objects access by a User [duplicate]
I am in for a requirement where I need to use EE to capture the Objects Accessed by a particular SQL User.
I want to avoid the action sqlserver.sql_text, if I use this, I will need to manually scan ...
6
votes
1answer
543 views
How to avoid Table Lock Escalation?
I've got a task to update 5 million rows in a production table, without locking down the whole table for extended time
So, I used approach that helped me before many times - updating top (N) rows at a ...
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42 views
Where is the documentation for SQL Server's blocked process report?
I'm trying to work with the blocked process reports captured using Extended Events and, while I can find numerous blog articles and Q&A about specific details (e.g.1 2 3), I can't find any ...
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53 views
How to filter MSSQL Xevents by attach_activity_id.guid
I need to create an Extended Events session with the TRACK_CAUSALITY = ON parameter to catch errors in the batch that is executed after RPC, that's why I use this parameter.
I used this script.
When ...
6
votes
2answers
233 views
Automatically reject certain expensive query statements
I have some clients which sometimes run some "not allowed" very expensive queries.
I've tracked them down using Extended Events.
Is it possible to reject these queries automatically? I know ...
1
vote
1answer
90 views
Extended Events XEL file reader; Is there a FileName property avaialble in QueryTableXEventData or SqlBulkCopy
Using the QueryTableXEventData class in Powershell I am able to parse 100's of XEL files very quickly and export their content to a table in SQL Server using SQLBulkCopy
Example:
$events = new-object ...
3
votes
1answer
111 views
How to capture runtime parameters with extended event?
I use rpc_completed event in order to capture executed sprocs. I am also to view the statement and passed parameters by using the following way:
right-click extended event -> Watch Live Data and ...
0
votes
1answer
156 views
How to query an Extended Events target file on a SQL Azure Managed Instance by using T-SQL?
I'm setting up an Extended Events trace in a Managed Instance (NOT Azure SQL DB) for the first time.
These are the steps I've carefully followed:
Created a Master key on my Database.
Created a ...
0
votes
2answers
40 views
Backup Restore, CPU usage and Extended Events
I'm working on measuring the performance impact of Backups on CPU. I would like to capture all the backup operations and CPU usage. I'm running a weekly full backup, daily diff, and 15 min log backup. ...
0
votes
1answer
82 views
SQL Server Extended event filters: can you use an IN predicate with a subquery?
I have an extended event that tracks and filters login events from specific users. The filter is something like this:
WHERE (([sqlserver].[nt_user]=N'fredJohnson') OR ([sqlserver].[nt_user]=N'...
1
vote
2answers
118 views
Problem tracing Error: 8623 with extended events
From time to time we are getting SQL Server error:
Error: 8623, Severity: 16, State: 1
The query processor ran out of
internal resources and could not produce a query plan. This is a rare
event and ...
0
votes
1answer
44 views
SQL extended event captured only the estimated execution plan but no actual execution plan
My SQL instance version is Microsoft SQL Server 2014 (SP3-CU-GDR) (KB4535288)
I am troubleshooting the application time-out and the time-out SELECT query is quite simple. It only takes less than 1 ...
1
vote
1answer
73 views
Improve querying of Extended Events target file
As part of our server estate monitoring, I am adding extended events to pick up warnings, blocking etc and I'd like to periodically (Every couple of minutes) query the event file to collect the data. ...
2
votes
2answers
152 views
Performance of Query where time captured from SP statement completed differs by large from RPC completed
I am unable to understand the performance of below query when collected data from XE events:
Query
DECLARE @Importdate DATETIME = ISNULL ((
SELECT ImportDatetime
FROM
Customertable
where CustomerID ...
-1
votes
1answer
151 views
General Question as best practice to collect data from extended events
Hope ya all doing good and safe:-
I am collecting query level metrics from extended events using below events for -
SP statement completed
SQL Statement completed
SQL Batch Completed
RPC Completed
...
0
votes
1answer
78 views
Specify file target filename dynamically
I need to create an Extended Event session to capture all the executed queries while my server is running and save them in a file under a folder with the database name.
DECLARE @file varchar(50);
...
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vote
0answers
91 views
SQL Server 2017, XEvent: sql_text IS NOT NULL
I'm attempting to use XEvents to find out which queries are causing my templog.ldf file to grow in size. I'm getting events, but I see the sizes of the files haven't changed, and that the sql_text ...
2
votes
1answer
53 views
Error while creating Extended Events on 2008 SQL Server
I am trying to create an extended event to capture the login information of my server. While creating an extended event on SQL 2008 using the below query
CREATE EVENT SESSION [SA_Monitor] ON SERVER
...
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149 views
SQL Server 2008: The target name, “package0.event_file”, is invalid, or the object could not be found
What can cause the following error?
Msg 25623, Level 15, State 2, Line 1
The target name, "package0.event_file", is invalid, or the object could not be found
Given the following TSQL:
CREATE EVENT ...
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vote
0answers
872 views
Troubleshoot MS DTC error
I've been getting these two errors on SQL Server log:
Error 1:
DESCRIPTION: Import of Microsoft Distributed Transaction
Coordinator (MS DTC) transaction failed:
0x8004d00e(...
1
vote
2answers
36 views
Failing MERGE Statement: How to monitor with XEvents and specifically get parameter values for a prepared statement?
My problem
I am running SQL Server 2017 and would like to investigate an error with a MERGE statement like the following
MERGE INTO table
USING
(SELECT ? AS Search_Col) AS SRC
ON table....
2
votes
1answer
75 views
Extended Events Collation resolution error
When trying to expand the sessions under extended events I am getting a Collation Resolution error in SSMS 18.2 (15.0.18142):
Looking at a trace I have found that this query is what is giving me the ...
0
votes
0answers
44 views
create_time in sys.dm_xe_sessions is in the future
I have run the following query which shows the running XE sessions on the server:
SELECT name,
create_time
FROM sys.dm_xe_sessions
and I get the results
+-------------------------------+...
1
vote
1answer
56 views
What is the impact of MAX_DISPATCH_LATENCY while configuring EXTENDED EVENT?
By default, MAX_DISPATCH_LATENCY is set to 30 seconds. I chose FILE as a target and write all captures there. I thought that if I write all captures into file, why would then I lower down ...
3
votes
1answer
117 views
MSSQL Server XE column client_connection_id accessible through system view/table for auditing?
In our .NET application we create a SqlConnection to talk to the database.
After the connection is opened, we get the ClientConnectionId, a GUID.
Within the extended events I can manage to trace the ...
1
vote
1answer
295 views
SQL Server Extended Events purging
How do we purge events older than a day in Extended Events in SQL Server 2012. Stopping and Starting the session is not helping.
Target : asynchronous_file_target
Trying to create a job which will ...
1
vote
2answers
120 views
Querying system health data becomes slow as event volume increases
We get the data from system health XE from SQL server and load into table for later querying.
Part of that statements which gets pretty slow is
INSERT INTO TABLE1
(
[object_name]
...
1
vote
1answer
152 views
Trying to trace error in Stored Procedure using XEvents
Here is the situation:
I have a SQL server ETL application with a stored procedure that is inserting/updating some data into a table. The table has 1 INT column (it is an identity column and there ...
1
vote
0answers
23 views
Read all Captured Extended Events for a Given Extended Event Session Name
I want to be able to read all XE files for a dynamic XE session name. My XE session stores files to disk.
I have the query below
DECLARE @XeName SYSNAME = 'MyXE'
DECLARE @Path NVARCHAR(255)
SELECT @...
1
vote
2answers
173 views
Trying to identify what process is making a connection to a specific DB in SQL Server
I am attempting to track down... something... that is making a connection to a specific database without (apparently) doing anything with the connection. However, so far I have had no luck.
The data ...
2
votes
1answer
136 views
Can Extended Events be used instead of Auditing?
In BOL it is mentioned:
Does this mean Extended Events can capture all the events that are traced by auditing? Can we get all the functionalities of auditing just by using XEvents?
0
votes
1answer
102 views
How to convert Extended Event action mdmget_TimeStampUTC to datetime?
SQL Server Extended Events can include an action of mdmtargetpkg.mdmget_TimeStampUTC. It returns a value such as 132085458320550473. How can that be converted to an actual date?
It doesn't appear to ...
4
votes
2answers
513 views
Way to find when system health file is rolling over
Is there a way to find the events when system health extended event files are rolling over rather than manually monitoring for the events?
For my medium load server they stay upto 2-3 days. But for ...
6
votes
1answer
2k views
What is the proper event in Extended Events to track stored procedure executions?
My goal is to track executions of a single stored procedure using Extended Events
In the event selection list, I can find following:
sql_statement_completed
sql_batch_completed
...
12
votes
1answer
289 views
SQL Extended Events Session for deadlock detection
Is there a way to increase the size of the <inputbuf> element in the deadlock XML captured by the deadlock extended events session?
We want to see the complete query to help pinpoint the issue ...
3
votes
0answers
70 views
Why execution plan could be skipped from XE session?
Got an issue, similar to this one: Why does SQL Server Profiler trace not capture SELECT operator in execution plans?. There was an advice to use XE instead of Trace, but it does not help.
Thing is, ...
0
votes
1answer
30 views
Resources used by ExtendedEvents
Does anyone know how to tell how many resources (CPU/MEM/Reads etc) have been used by SQL Server Extended Events?
I've went through the available DMVs here
But I dont see where this is tracked ...
1
vote
1answer
136 views
Need Help in extended events SQL Server [duplicate]
I have created an extended event as below. I want to know how to query the historical data using T-SQL to see the issues at particular timestamps. The trace is running as of now
CREATE EVENT SESSION [...
10
votes
1answer
430 views
Incorrect process utilization from System health extended events?
I have been recently working on understanding the data or metrics being stored in system health extended events event file.
We are trying to implement the data collection of performance metrics using ...
0
votes
1answer
535 views
File growth and location change for system health extended events
I am continuing the questions over system health extended event from my previous question How are the system health extended events files rolling over?
I see system health file location by default ...
6
votes
1answer
636 views
How are the system health extended events files rolling over?
I see the default system health session events within SQL Server are 5 MB each with 4 files in total.
We are trying to fetch data from the system health in historical events but for some critical ...
4
votes
1answer
259 views
SQL Server 2016 still uses mixed_extent_allocation in TempDB
Today I was troubleshooting a problem on TempDB on SQL Server 2016 SP2 using extended events and added the mixed_extent_allocation and transaction_log event to my trace.
I expected ...
-2
votes
1answer
172 views
Centralized Logs (error, deadlocks, slow queries) For SQL Servers
I want to establish a centralized log for many SQL Servers, similar to the products Graylog or elk stack.
What is the best and performant way to send these kind of logs to a log collector?
I ...
1
vote
1answer
45 views
Capture Extended Events Histogram only during time window
We have a problematic time window during night on the weekends. I want to set up multiple Extended Events sessions to capture some data and get insight.
Most of them will target a file, which I can ...
