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Questions tagged [extended-events]

SQL Server Extended Events (Extended Events) is a general event-handling system for server systems.

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How to know the size of data returned from a select statement using extended event in azure sql MI?

When a select statement is issued I would like to know the the query issued by the user and the number of rows returned along with the bytes/MB of data returned using extended events. With event ...
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1answer
142 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 ...
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1answer
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Definition of extended event session [closed]

Is there any complex EE session that can be used to collect performance data on SQL server on daily basis (Queries and their plans , waitings , blockings ,lockings ) , I want to create such session ...
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0answers
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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, ...
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1answer
23 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 ...
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1answer
36 views

Need Help in extended events SQL Server

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 [...
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126 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 ...
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1answer
36 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 ...
5
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1answer
160 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 ...
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1answer
64 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 ...
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1answer
74 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
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1answer
16 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 ...
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2answers
165 views

How to view xEvent event_file data

I have a small xEvent that is sending the results as .xel to an event_file in G:\XEvents and I want to explore the data with SSMS. I have been looking for a solution and found several posts about ...
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50 views

Authoritative Extend Event object list?

I am looking for an authoritative list of objects for extended events, I want to know what version an object becomes available and some clues about what the value really represents. I have googled ...
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0answers
103 views

Difference between sqlserver.nt_username & sqlserver.username

I am just learning about SQL Extended Events. I have a small event and for actions I have selected both sqlserver.nt_username & sqlserver.username When I test connect with a NT account the ...
9
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1answer
87 views

What does it means when you have “sql_exit_invoked” in System Health?

I'm having problems with one of my SQL Server 2016 Standard servers. I have 8 production servers and this one is the only one who crashes randomly without having any trace in the log. I have ...
2
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1answer
93 views

database_xml_deadlock_report or xml_deadlock_report

Is [database_xml_deadlock_report] the same as [xml_deadlock_report] just with extra fields? I'm creating a basic deadlock and blocking capture and see both. Most examples online show [...
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1answer
38 views

Why does a query on a local instance with local database files cause NETWORK_IO waits?

I have followed this tutorial to get the wait stats of a particular query while it is 'in flight' using extended events. Whilst the tutorial refers to an index rebuild, I just did a select statement ...
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1answer
38 views

How to index of filter extended event files in Sql Server

I am collecting errors data using the error_reported event and saving the data on XEL files. The problem is that there are hundreds of thousands of errors over there and querying them can take a lot ...
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1answer
93 views

how to add an extended events tracking session to SSAS?

I would prefer to have a script to achieve this, but as I am not so familiar with SSAS I am using the wizard to create an extended events session in SSAS. The way I am doing it is right clicking on ...
2
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1answer
157 views

Extended Event Session Keeps Stopping

A few months ago I added an extended event to track blocked processes and deadlocks, with a file output to track occurrences. Every now and again, I check the log file, but find that the extended ...
2
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1answer
121 views

SQL Query logging in extended events deadlock xml report is too short

How can I tell the sql server to log the whole query in the xml, and not truncate it? example: <inputbuf> (@0 nvarchar(20),@1 nvarchar(10),@2 decimal(38,20),@3 int,@4 datetime,@5 nvarchar(...
5
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1answer
65 views

Precision for average_disk_seconds_per_read?

In SQL Server Extended Events, event = perfobject_logicaldisk, what is the actual unit of time for average_disk_seconds_per_read and average_disk_seconds_per_write? All of the documentation I've ...
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0answers
67 views

Testing Data Compression

We have a 1TB table that gets queried a lot. I have suggested we use Data Compression to save on space as well as help put more in memory. Because of the concern of CPU overhead, I have been tasked ...
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1answer
155 views

RID and Key lock on same object by a Select and Delete query

To be specific how did the select query (spid 128, on the left) is able to acquire a S (shared) lock on Index but not on the row? Also, how did Delete query (SPID 121, on the right) is able to get X ...
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1answer
131 views

How do I access ETW Traces on SQL Server for linux?

I have SQL Server running in a docker image. I have an extended event session running on it. I can connect to it fine and view live data with SSMS. I can use T-SQL to view the histogram target. If ...
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Troubleshooting with extended events

In SQL Server Profiler, you can select all of the rows, and get the actual SQL that was executed and not just individual events. Do you see the text in red on the bottom of the image I posted? That ...
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184 views

SQL Server Trace Stopped Messages Displaying Random Login Name

When traces are started and stopped we get messages similar to the following in the SQL Server error log: SQL Trace ID 2 was started by login "DOMAIN\loginA". and SQL Trace stopped. Trace ID = ...
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0answers
79 views

Cost / Capacity Planning: Quantify Data Ingress / Egress

To evaluate the migration of an on-prem SQL Server to a cloud-hosted VM, I want two fundamental pieces of information: The list of clients that access the on-prem DB Server. I'd like to know: client ...
1
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1answer
401 views

How to interpret AlwaysOn event hadr_db_partner_set_sync_state

We have a program that listens to the SQL Server AlwaysOn_health event session for state changes. When we simulate a secondary server going offline or online, we get the ...
5
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1answer
1k views

What is the right tool to process big .xel files (SQL Server Extended Events logs)?

My aim is to audit all queries on an instance, who's running them and from where, how many reads, in order to consolidate/migrate on another instance. Figured out the best way is via Extended Events ...
2
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1answer
50 views

Explanation of Extended Events xml

I queried an Extended Events session and returned the XML. I am confused on what frame level 1, 2, 3 mean. As well as line, offsetStart and offsetEnd? I am however able to convert the sql handle to ...
2
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1answer
288 views

Query plan do not get invalidated after update statistics

I'm running some tests to find out when query plans get invalidated after an update statistics. The machine I'm using for testing is a SQL Server Developer 2016 SP1 CU7. I found an article on ...
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1answer
202 views

Determine which SQL drivers an application uses to connect to SQL server

I want to find out what SQL driver a third-party application (or any application for that matter) uses to connect to a SQL Server instance in production. It can be tough to get a fast answer from a ...
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752 views

Extended Event Reported Error Login Timeout

While poking around for a specific event I found myself discovering an error happening every second. At the moment I cannot find any more information about the error as it only gets displayed in the ...
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1answer
95 views

Extended Events: Specify Session Data Storage left blank

What happens if the Data Storage is never configured?
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1answer
58 views

SQL 2008/R2 Extended Events - Row Count

I need to setup a sql audit to capture all queries running on a server from any unauthorized locations, and one of the columns that is required is Row Count. In sql trace, this is possible. But I can'...
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1answer
272 views

Is there a service broker target for an extended event session

We use Service Broker heavily for asynchronous background processing. Additionally we want to use it for extended event processing. Is it possible to use Service Broker listener as target for an ...
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1answer
71 views

Extended Events replacement for Virtual file stats

Is there a way to monitor virtual filestats data with Extended Events, instead of doing (select * from sys.dm_io_virtual_file_stats) in SSMS?
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287 views

Track all changes to table with Extended Event Session

I am using the sql_statement_completed Event in SQL Server 2016 to track all SQL executed on a certain table. I have a Filter on sqlserver.sql_text like %tablename%. This captures any SQL I execute ...
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0answers
306 views

StartTime and EndTime for the Attention Extended Event

The documentation says that the "Attention" extended event class has StartTime and EndTime as part of it. But I can't seem to figure out how to get at it or record it... Here is what I am using to ...
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1answer
157 views

When using XE Profiler in SSMS 17.3, the 'Database Name' column shows as either NULL or an empty string

I'm just starting to use SSMS 17.3 - and one of the main things I was looking forward to trialing was XE Profiler. However, when you start a session (either Standard or TSQ) and add the Database Name ...
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1answer
183 views

Extended Events session file truncated on server restart

I have created an extended events session to capture login and logout information. The session is setup to store events to a file. I understood that one of the advantages of using an event file (...
2
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2answers
401 views

Monitoring deadlocks in SQL Server 2014

We are experiencing deadlocks on SQL Server 2014 and I am trying to capture as much information about them as I can. There is already Extended Events Session that captures xml_deadlock_report events ...
2
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1answer
154 views

Does Extended Event session without target affects server performance?

Extended event session can be created without targets. In such situation you can watch collected events in SQL Server Management Studio in the Live Data view. For such session a LiveStreamTarget is ...
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1answer
379 views

Extended Event doesn't capture every rpc_completed

I have a long running Extended Event session that captures rpc_completed events filtered for a few procs. It has found some that have run. But others it doesn't capture them when I know they have been ...
3
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1answer
73 views

High-resolution CPU usage information for batches and statements

I'm working on a tool that I use to evaluate the performance of SQL Server queries in a development environment. I use, and highly recommend, tools like SentryOne's Plan Explorer, but my tool reports ...
2
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1answer
119 views

dm_db_index_operational_stats showing more blocking than extended event report

I’ve implemented the XE to capture blocking on my instance (as per this great article https://www.brentozar.com/archive/2014/03/extended-events-doesnt-hard/#comment-2470072. ) I did this because I ...
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0answers
49 views

SQL Server Extended Events Sessions on VIEWs

I'm trying to monitor when Views are being called in SQL Server. Using Extended Events, I've created a Session and included event "sql_statement_completed". Then I've added 1x filters on this: ...
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0answers
1k views

Way to import extended event data into table efficiently

create event session [my_xevent_session] on server add event sqlserver.rpc_completed( set collect_statement = 1 --collect_output_parameters = 1 action ( sqlserver....