Effectively troubleshoot latency in SQL Server Transactional replication: Part 1
Are you struggling with latency issues in SQL Server Transactional replication? This article provides clear, step-by-step instructions to effectively troubleshoot and resolve these challenges. Dive into proven techniques and best practices that will help you enhance your SQL Server's performance and ensure seamless data replication. Don't let latency slow you down—master the art of SQL Server troubleshooting today! I hope you find this teaser engaging! If you need any adjustments or additional content, feel free to let me know. Thanks to Collin Benkler, Senior Escalation Engineer in Microsoft for SQL Server for his valuable feedbacks.
SQL Server Database Mail Failure Troubleshooting & Two Common Issues
This blog discusses troubleshooting steps to investigate the failure of SQL Server Database Mail service on sending email. It also discusses 2 special scenarios with SQL Server Database Mail that commonly cause mail sending failure General Troubleshooting Steps to Narrow Down RCA Special Scenarios: Scenario 1: Implicit SSL/TLS mode is not supported for SQL Server DB Mail. If your SMTP server requires implicit TLS, then SQL Server DB Mail will not be able to send email using this SMTP server. Scenario 2: SQL DB Mail failure caused by SMTP mail server requesting TLS 1.2. In this case, TLS 1.2 needs to be enabled at DB Mail server. Commonly Used Protocols and Port ======================== protocol No encryption TLS/SSL TLS/SSL Plain port Explicit port Implicit port FTP 21 21 990 SMTP 25 or 587 25 or 587 465 IMAP 143 143 993 POP3 110 110 995 Telnet 23 23 992 HTTP 80 - 443 General Troubleshooting Steps to Narrow Down RCA ===================================== Check SQL DB Mail errors from DMV and logs /*List all DB Mail event log*/ SELECT * FROM msdb.dbo.sysmail_event_log ORDER BY log_date DESC /*List all failed items */ SELECT er.log_id AS [LogID], er.event_type AS [EventType], er.log_date AS [LogDate], er.description AS [Description], er.process_id AS [ProcessID], er.mailitem_id AS [MailItemID], er.account_id AS [AccountID], er.last_mod_date AS [LastModifiedDate], er.last_mod_user AS [LastModifiedUser], fi.send_request_user, fi.send_request_date, fi.recipients, fi.subject, fi.body FROM msdb.dbo.sysmail_event_log er LEFT JOIN msdb.dbo.sysmail_faileditems fi ON er.mailitem_id = fi.mailitem_id ORDER BY [LogDate] DESC Check and ensure DB Mail has been enabled sp_configure 'show advanced options', 1; GO RECONFIGURE; GO sp_configure 'Database Mail XPs', 1; GO RECONFIGURE GO Check and ensure the SQL Server service account has permission to call the Database mail’s executable file (DatabaseMail.exe) Example: Install Path:\Program Files\Microsoft SQL Server\MSSQL1.SQL2019\MSSQL\Binn\DatabaseMail.exe Check DB Mail account profile’s security configuration options and port number you have chosen for further troubleshooting purpose The Port Number you have chosen for this account Whether or not you have checked the box “this server requires a secure connection(SSL)” The type of SMTP authentication you have chosen Steps: Open SSMS, select Management, right-click Database Mail, and select Configure Database Mail -> Manage Database Mail accounts and profiles > Next. Telnet Port and IP of SMTP Server. In SQL DB Mail server, telnet the SMTP server to see if SQL machine can communicate with the IP and port of your SMTP (the port number configured in your profile). Most SMTP servers use port 25. If the telnet is not successful, it means the network communication from DB Mail server to SMTP server has caused the problem. If the DB Mail server can communicate with other server without issue, then the problem lies on the network traffic with SMTP server Open CMD as administrator and run below command to telnet your target server IP and port telnet [domain name or ip] [port] For example, to verify connection to 192.168.0.10 on port 25, issue the command: telnet 192.168.0.10 25 Configure TELNET in your server: Windows 7, 8. 10: Open Windows Start menu > Type "Control Panel" > Press Enter > “Programs” > "Programs and Features" > Turn Windows features on or off > Select "Telnet Client" > Press “OK" Windows Server 2012, 2016: Open “Server Manager” > “Add roles and features” > click “Next” until reaching the “Features” step > tick “Telnet Client” > click “Install” > when the feature installation finishes, click “Close”. Run Testing Script to Send email. If telnet to the IP and port from DB Mail server to SMTP server is successful, it means the network from DB server to SMTP server is good. We will need to test and see if we can send DB Mail via PowerShell or other scripts (rule out impact of DB Mail service and see if we could directly send email to your SMTP server to isolate the issue further). Also, we suggest to test and see if we can switch to a public SMTP server for the same DB Mail profile as well as switch to different DB Mail profile to narrow down whether it is profiler issue, SMTP server issue, or SQL Server DB Mail service issue. Below is a sample PowerShell Script to send DB mail $UserCredential = Get-Credential enter this: user:test@chimex.onmicrosoft.com password:yourpassword Send-MailMessage -to "youremail" -from "test@chimex.onmicrosoft.com" -subject "powershell" -body "powershell" -BodyAsHtml -smtpserver smtp.office365.com -usessl -Credential $UserCredential If step 6 is not able to be directly tested in your environment, kindly collect a network monitor trace when you reproduce the issue (failed to send DB Mail) If you do not see clear evidence to find RCA in the network trace for client or SMTP server reset, based on the symptom, you may need to collect a TTT debug trace for dbmail.exe and work with Microsoft support. Special Scenarios: =============== Scenario 1: Implicit TLS mode is not supported for SQL Server DB Mail. If your SMTP server requires implicit TLS, then SQL Server DB Mail will not be able to send email with this SMTP server. You can consider the options of switching to a different SMTP Server (such as a public one) that support STARTTLS or making modification in your SMTP server to support STARTTLS If your DB Mail profile has enabled SSL encryption, then STARTTLS would be required in the secured communication between your DB Mail server and SMTP Server. For SQL Server Database Mail architecture, as our service relies on .Net System.Net.Mail (SmtpClient class) and System.Net.Mail does not support “Implicit SSL/TLS“mode, SQL Server Database Mail does not support it as well. In the past, port 465 can be used to support “Implicit SSL/TLS“mode (SMTP over SSL). Now it is no longer supported. (more details , kindly refer SmtpClient.EnableSsl Property (System.Net.Mail) | Microsoft Docs ) More Details with STARTTLS and “Implicit SSL/TLS” --------------------------------------------------------------------- “STARTTLS” is an email protocol command that would turn an insecure network connection into a secured one. If email client server has enabled/request SSL or TLS encryption, then STARTTLS would be required for SQL Server DB Mail service to successfully send email. “Implicit SSL/TLS” is another mode for secured client to server communication. The major two differences between “STARTTLS” and “Implicit SSL/TLS” are summarized as below (while there are a couple of other differences) : With the “Implicit SSL/TLS” mode, email client server connects to the SMTP server and TLS/SSL encryption is switched on implicitly as soon as the connection is established while under “STARTTLS” mode, client explicitly requests TLS/SSL encryption to be switched on after initial TCP handshake. With “Implicit SSL/TLS” mode, if the connection is not able to be built with encrypted security mode, the email will be prevented from being sent. However, with “STARTTLS”, if the SMTP mail server not able to support TLS encryption as requested by email client server, the email client server will negotiate with the SMTP server and agree to downgrade to an unencrypted connection. Thus, with “STARTTLS”, you can use the same port for encrypted and plain text mail. Scenario 2: SQL DB Mail failure caused by SMTP mail server requesting TLS 1.2. In this case, TLS 1.2 needs to be enabled at DB Mail server. Multiple DB Mail cases have seen its failure being caused by client DB Mail server not supporting TLS 1.2 while the SMTP mail server is requesting TLS 1.2. Unfortunately, most often the error observed in Database Mail Log Viewer (sysmail_event_log) is very generic as below. From network monitor trace, you may not see any STARTTLS traffic as the connection can be reset by DB mail server after initial handshake. The mail could not be sent to the recipients because of the mail server failure. (Sending Mail using Account 2 (2022-03-14T16:58:54). Exception Message: Cannot send mails to mail server. (Failure sending mail.). ) If Schannel errors are detected in Windows system event logs around the same time when DB Mail failure happens, you are suggested to use below troubleshooting steps to see if the failure is related to TLS 1.2 requested by SMTP server. Use the first 7 steps mentioned earlier to narrow down other issues that can play a role in the scene. Check system event log for any Schannel errors (or any errors) from the same time as the database mail failure occurred Below are a few examples but there could be others. Any Schannel error occurring at the same time as the database mail failure should be cautiously checked. {timestamp},Error,{servername},36887,Schannel,A fatal alert was received from the remote endpoint. The TLS protocol defined fatal alert code is 70. {timestamp},Error,0,36871,Schannel,{servername},A fatal error occurred while creating a TLS client credential. The internal error state is 10013. If Schannel errors are spotted at the same time when DB Mail fails which can easy to be reproduced, check and ensure your SQL Server and Windows has the necessary hotfixes to support TLS 1.2 (refer link https://support.microsoft.com/en-us/topic/kb3135244-tls-1-2-support-for-microsoft-sql-server-e4472ef8-90a9-13c1-e4d8-44aad198cdbe ) Check registry settings in DB Mail server and make sure the needful ones are present. Reboot is needed for the change to take effects. (Please first take a backup of your registry key and store them in another machine before you make any change! ) [HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Microsoft\.NETFramework\v2.0.50727] "SystemDefaultTlsVersions"=dword:00000001 "SchUseStrongCrypto"=dword:00000001 [HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Microsoft\.NETFramework\v4.0.30319] "SystemDefaultTlsVersions"=dword:00000001 "SchUseStrongCrypto"=dword:00000001 [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\.NETFramework\v2.0.50727] "SystemDefaultTlsVersions"=dword:00000001 "SchUseStrongCrypto"=dword:00000001 [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\.NETFramework\v4.0.30319] "SystemDefaultTlsVersions"=dword:00000001 "SchUseStrongCrypto"=dword:00000001 [HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL\Protocols\TLS 1.2] [HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL\Protocols\TLS 1.2\Client] "DisabledByDefault"=dword:00000000 "Enabled"=dword:00000001 [HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL\Protocols\TLS 1.2\Server] "DisabledByDefault"=dword:00000000 "Enabled"=dword:00000001 DISCLAIMER : THIS CODE AND INFORMATION IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.TSQL Scripts for Troubleshooting Common Issues with SQL Server
This blog provides TSQL samples for troubleshooting common SQL Server issues as listed below. You can modify the parameters (i.e. database name, table name, keyword name, duration, etc.) based on customized environment settings and requirements. (Test these scripts before implementing in PROD environment. Please be aware of all potential risks for implementing the script in your PROD environment.) 1. Performance Troubleshooting(blocking, high CPU, memory, idle, query execution) 2. Deadlock and Database Object ID mapping 3. HA (Clustered SQL Server) 4. Backup & Transaction Log Related Issue 5. Query Store (QDS) 6. Database Encryption (TDE) 7. Tool (Profiler trace and X-event) Performance Troubleshooting ========================= (blocking, high CPU, memory, idle, query execution) 1.List all active sessions and its queries that contain your target table name or specific TSQL structure (input your target key word) SELECT sqltext.TEXT, req.session_id, req.status, req.command, req.cpu_time,req.database_id, req.total_elapsed_time FROM sys.dm_exec_requests req CROSS APPLY sys.dm_exec_sql_text(sql_handle) AS sqltext where sqltext.text like '%Your Target Key Word%' 2.List all sleeping user sessions that have been idle for over 15 minutes with detailed queries (You can customize the session’s status and idle time) SELECT CURRENT_TIMESTAMP as currenttime, datediff(minute,last_batch,GETDATE()) as 'idletime_in_minute' ,sp.status,sp.spid,sp.login_time,sp.program_name,sp.hostprocess,sp.loginame,text FROM sys.sysprocesses sp CROSS APPLY sys.dm_exec_sql_text(sp.sql_handle) AS QT where sp.status = 'sleeping' and datediff(minute,last_batch,GETDATE()) >15 and spid>50 3.List top 10 high CPU queries that currently running in this SQL instance SELECT s.session_id,r.status,r.blocking_session_id 'Blk by',r.wait_type,wait_resource,r.wait_time / (1000 * 60) 'Wait M',r.cpu_time,r.logical_reads,r.reads,r.writes,r.total_elapsed_time / (1000 * 60) 'Elaps M',Substring(st.TEXT,(r.statement_start_offset / 2) + 1, ((CASE r.statement_end_offset WHEN -1 THEN Datalength(st.TEXT) ELSE r.statement_end_offset END - r.statement_start_offset) / 2) + 1) AS statement_text, Coalesce(Quotename(Db_name(st.dbid)) + N'.' + Quotename(Object_schema_name(st.objectid, st.dbid)) + N'.' + Quotename(Object_name(st.objectid, st.dbid)), '') AS command_text,r.command,s.login_name, s.host_name,s.program_name,s.last_request_end_time,s.login_time, r.open_transaction_count FROM sys.dm_exec_sessions AS s JOIN sys.dm_exec_requests AS r ON r.session_id = s.session_id CROSS APPLY sys.Dm_exec_sql_text(r.sql_handle) AS st WHERE r.session_id != @@SPID ORDER BY r.cpu_time desc 4. List top 10 high memory usage queries that currently running in this SQL instance SELECT mg.session_id,mg.granted_memory_kb,mg.requested_memory_kb,mg.ideal_memory_kb,mg.request_time,mg.grant_time,mg.query_cost,mg.dop,st.[TEXT],qp.query_plan FROM sys.dm_exec_query_memory_grants AS mg CROSS APPLY sys.dm_exec_sql_text(mg.plan_handle) AS st CROSS APPLY sys.dm_exec_query_plan(mg.plan_handle) AS qp ORDER BY mg.required_memory_kb DESC 5. List detailed memory usage for each memory clerk DBCC MEMORYSTATUS 6. List memory usage for plan cache and its maximum size based on current setting. By removing the WHERE condition, you will get a full list for all memory cache clerks’ information select name, type, buckets_count from sys.dm_os_memory_cache_hash_tables where name IN ( 'SQL Plans' , 'Object Plans' , 'Bound Trees' ,'Extended Stored Procedures') select name, type, pages_kb, entries_count from sys.dm_os_memory_cache_counters where name IN ( 'SQL Plans' , 'Object Plans' , 'Bound Trees' ,'Extended Stored Procedures') 7. List progressive (on-going) execution plan for a specific session (Starting with SQL 2016) For SQL 2016 and 2017, please first run below TSQL in the query session of which the execution plan you wish to extract later set statistics profile on Run below query to extract the on-going execution plan for your target session (input the SPID in the bracket) SELECT * FROM sys.dm_exec_query_statistics_xml(59); 8.List all block header queries that currently detected in this SQL instance declare @blocker varchar(100),@sql varchar(100) print convert(varchar(20), getdate(),120) select distinct blocked into #blocker from sysprocesses where blocked <> 0 DECLARE blocker CURSOR FOR select spid from sysprocesses where spid in (select * from #blocker) and blocked = 0 OPEN blocker FETCH NEXT FROM blocker INTO @blocker WHILE @@FETCH_STATUS = 0 BEGIN set @sql='DBCC inputbuffer(' + @blocker + ')' execute (@sql) set @sql= 'select * from sysprocesses where spid=' + @blocker execute (@sql) FETCH NEXT FROM blocker INTO @blocker END CLOSE blocker DEALLOCATE blocker drop table #blocker 9.Kill all sleeping sessions that has been idle over 1 hour (You can customize the idle duration) DECLARE user_spid INT DECLARE CurSPID CURSOR FAST_FORWARD FOR SELECT SPID FROM master.dbo.sysprocesses (NOLOCK) WHERE spid>50 AND status='sleeping' -- only sleeping threads AND DATEDIFF(HOUR,last_batch,GETDATE())>=1 -- thread sleeping for 1 hours AND spid<>@@spid -- ignore current spid OPEN CurSPID FETCH NEXT FROM CurSPID INTO user_spid WHILE (@@FETCH_STATUS=0) BEGIN PRINT 'Killing '+CONVERT(VARCHAR,@user_spid) EXEC('KILL '+@user_spid) FETCH NEXT FROM CurSPID INTO user_spid END CLOSE CurSPID DEALLOCATE CurSPID GO 10.Kill all block headers. This script will continuously scan every 5 seconds for all block header sessions and kill all block headers Use master go while 1=1 Begin declare @blocker varchar(100),@sql varchar(100) print convert(varchar(20), getdate(),120) select distinct blocked into #blocker from sysprocesses where blocked <> 0 DECLARE blocker CURSOR FOR select spid from sysprocesses where spid in (select * from #blocker) and status='sleeping' OPEN blocker FETCH NEXT FROM blocker INTO @blocker WHILE @@FETCH_STATUS = 0 BEGIN set @sql='DBCC inputbuffer(' + @blocker + ')' execute (@sql) set @sql= 'kill ' + @blocker execute (@sql) FETCH NEXT FROM blocker INTO @blocker END CLOSE blocker DEALLOCATE blocker drop table #blocker waitfor delay '0:0:05' End Deadlock and Database Object ID mapping =================================== Below are 3 examples to map the issued object based on the ID to its source database, index or schema. 1. Key type wait resource waitresource=KEY: 6:12345678990 (987654321a9b) database_id = 6 hobt_id = 12345678990 hash value = (987654321a9b) We can use below TSQL to check the database name based on DATABASE ID select db_name(6) Use below TSQL to check the schema, object, and index details related to this key USE DatabaseName GO SELECT sc.name as schema_name, so.name as object_name, si.name as index_name FROM sys.partitions AS p JOIN sys.objects as so on p.object_id=so.object_id JOIN sys.indexes as si on p.index_id=si.index_id and p.object_id=si.object_id JOIN sys.schemas AS sc on so.schema_id=sc.schema_id WHERE hobt_id = 12345678990 2. Object Wait resource type waitresource=OBJECT: 6:1234567890:4 database_id = 6 Object ID = 1234567890 We can use below TSQL to check the specific object name based on the waitresource details select OBJECT_NAME(1234567890,6) 3. Page Wait Resource Type waitresource=“PAGE: 6:3:70133 ” = Database_Id : FileId : PageNumber database_id=6 data_file_id = 3 page_number = 70133 HA (Clustered SQL Server) =================== List the latest error encountered by local AG replica for connection timeout select r.replica_server_name, r.endpoint_url, rs.connected_state_desc, rs.last_connect_error_description, rs.last_connect_error_number, rs.last_connect_error_timestamp from sys.dm_hadr_availability_replica_states rs join sys.availability_replicas r on rs.replica_id=r.replica_id where rs.is_local=1 List the current redo rate, redo queue size, log send rate, log send queue size for current AG replica SELECT CURRENT_TIMESTAMP as currenttime,drs.last_commit_time,ar.replica_server_name, adc.database_name, ag.name AS ag_name, drs.is_local, drs.is_primary_replica, drs.log_send_queue_size, drs.log_send_rate, drs.redo_queue_size, drs.redo_rate FROM sys.dm_hadr_database_replica_states AS drs INNER JOIN sys.availability_databases_cluster AS adc ON drs.group_id = adc.group_id AND drs.group_database_id = adc.group_database_id INNER JOIN sys.availability_groups AS ag ON ag.group_id = drs.group_id INNER JOIN sys.availability_replicas AS ar ON drs.group_id = ar.group_id AND drs.replica_id = ar.replica_id Restart endpoint Check SQL AG endpoint name SELECT * FROM sys.endpoints Restart AG endpoint on this local replica ALTER ENDPOINT <Your AG Endpoint Name> STATE=STOPPED ALTER ENDPOINT <Your AG Endpoint Name> STATE=STARTED Backup & Transaction Log Related Issue ================================ List all backup history and backup file details for the past 7 days (You can modify the date) SELECT CONVERT(CHAR(100), SERVERPROPERTY('Servername')) AS Server, msdb.dbo.backupset.database_name, msdb.dbo.backupset.backup_start_date, msdb.dbo.backupset.backup_finish_date, msdb.dbo.backupset.expiration_date, CASE msdb..backupset.type WHEN 'D' THEN 'Database' WHEN 'L' THEN 'Log' END AS backup_type, msdb.dbo.backupset.backup_size, msdb.dbo.backupmediafamily.logical_device_name, msdb.dbo.backupmediafamily.physical_device_name, msdb.dbo.backupset.name AS backupset_name, msdb.dbo.backupset.description FROM msdb.dbo.backupmediafamily INNER JOIN msdb.dbo.backupset ON msdb.dbo.backupmediafamily.media_set_id = msdb.dbo.backupset.media_set_id WHERE (CONVERT(datetime, msdb.dbo.backupset.backup_start_date, 102) >= GETDATE() - 7) ORDER BY msdb.dbo.backupset.database_name, msdb.dbo.backupset.backup_finish_date List all databases’ data and log file path and logical name USE master; SELECT name 'Logical Name', physical_name 'File Location' FROM sys.master_files; List each database’ transaction log size usage and space DBCC SQLPERF(LOGSPACE) List VLF size and counts for all databases as well as detailed size for your target database select * from sys.dm_db_log_info(5); /*input here your DB ID to get detailed size for existing VLFs on this database*/ SELECT [name], s.database_id, COUNT(l.database_id) AS 'VLF Count', SUM(vlf_size_mb) AS 'VLF Size (MB)', SUM(CAST(vlf_active AS INT)) AS 'Active VLF', SUM(vlf_active*vlf_size_mb) AS 'Active VLF Size (MB)', COUNT(l.database_id)-SUM(CAST(vlf_active AS INT)) AS 'In-active VLF', SUM(vlf_size_mb)-SUM(vlf_active*vlf_size_mb) AS 'In-active VLF Size (MB)' FROM sys.databases s CROSS APPLY sys.dm_db_log_info(s.database_id) l GROUP BY [name], s.database_id ORDER BY 'VLF Count' DESC GO For the purpose of shrinking transaction log file, check the log_reuse_wait_desc type for all database select name,database_id,log_reuse_wait, log_reuse_wait_desc from sys.databases Please refer this link for how to fix each of the log_reuse_wait_desc type when it is not “NOTHING” https://docs.microsoft.com/en-us/sql/relational-databases/system-catalog-views/sys-databases-transact-sql?view=sql-server-ver15 Database Corruption Issue Force repair of database with REPAIR_ALLOW_DATA_LOSS option (data loss expected and sometimes can cause more damage. Please refrain from using this method unless as for a last resort. More details for fixing database corruption, please refer this link https://docs.microsoft.com/en-us/sql/t-sql/database-console-commands/dbcc-checkdb-transact-sql?view=sql-server-ver15) Alter database YourDBName set single_user with rollback immediate; DBCC CHECKDB('YourDBName', REPAIR_ALLOW_DATA_LOSS); Alter database YourDBName set multi_user with rollback immediate; Query Store (QDS) ================= 1.List a database’s query store status select * from sys.database_query_store_options 2. List all databases that have query store configured select name as 'DATABASE NAME', CASE is_query_store_on when 1 then 'ENABLED' else 'OTHER' END AS 'QUERY STORE STATE' from sys.databases where is_query_store_on = 1 order by 1 ; Database Encryption (TDE) ====================== Check if the DMK exist in master database USE master GO SELECT * FROM sys.symmetric_keys WHERE name = '##MS_DatabaseMasterKey##' Check if the certificate is created in master database. A certificate is equivalent to an asymmetric key USE master GO select * from sys.certificates Check if the database is encrypted/progress (encryption_state = 3 encrypted; =2 in progress) USE master GO SELECT db_name(database_id) [TDE Encrypted DB Name], c.name as CertName, encryptor_thumbprint , dek.* FROM sys.dm_database_encryption_keys dek INNER JOIN sys.certificates c on dek.encryptor_thumbprint = c.thumbprint Check if the DMK in the master database is now encrypted by the SMK (is_master_key_encrypted_by_server = 1) select is_master_key_encrypted_by_server, * from sys.databases where database_id = db_id(N'master') Tool (Profiler trace and X-event) ======================= Import SQL Profiler trace into SQL Server database tables USE DatabaseName GO select * into Sample from fn_trace_gettable('c:\trace\YourFolderToStoreTheTrace\YourTraceFile.trc',default) where eventclass in (10, 12) For event class ID, check the list in this link https://docs.microsoft.com/en-us/sql/relational-databases/system-stored-procedures/sp-trace-setevent-transact-sql?view=sql-server-ver15 Use XELoader to process X-event and import the data into SQL database table for data analysis purpose. XELoader can be downloaded from this opensource link https://github.com/suresh-kandoth/XELoader Use CMD script to load the X-event files into SQL Server database Sample script: C:\XELoader\6.2>XELoader.exe -D"C:\Users\yixin\Desktop\xeloader\xevent" -SYourServerName\InstanceName -dYourDBName Use TSQL query to check aggregated data result Sample TSQL: SELECT sum(c_duration) as SUM_DURAION,sum(c_signal_duration) as SUM_SIGNAL_DURATION,c_wait_type from [xel].[wait_info] group by c_wait_type order by SUM_DURAION desc DISCLAIMER : THIS CODE AND INFORMATION IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
