Distributed Replay
Testing With Your Data, Your Way!
SQLSat 470 Washington DC
December 5, 2015
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Melody Zacharias
Consultant
Chapter Leader / Regional Mentor for Canada
http://sqlmelody.blogspot.ca/
[email protected]
@SQLMelody
ca.linkedin.com/in/melodyzacharias
Agenda
Why
distributed replay?
What
is it used for?
How
do we set it up?
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4
Why
Bottle
Neck
5
Why
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Why - Limitations
•
•
•
•
Step
Run to Cursor
Toggle
Breakpoint
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8
What
Administration Tool
Replay Controller
Replay Client(s)
Target Server
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What
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What – Administration Tool
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What - Controller
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What - Clients
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What – Target
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How
Configuration
Collection
Replay
Results
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Configuration
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Configuration
C:\Program Files (x86)\Microsoft SQL Server\110\Tools
Controller configuration file
DReplayController.config
Client configuration file
DReplayClient.config
Preprocess configuration file
Dreplay.exe.preprocess.config
Replay configuration file
Dreplay.exe.replay.config
Configuration - Preprocess
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Configuration - Controller
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Configuration - Controller
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Configuration - Client
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Configuration - Replay
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Configuration
Replay Configuration
• Target instance
• Use connection pooling
• Sequencing
• Health monitor interval
• Stress scale granularity
• Query time out
• Connect timescale
• Threads per client
• Think time scale
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Configuration
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Configuration
Restart the services on all the servers
NET STOP “SQL Server Distribute Replay Controller”
NET START “SQL Server Distribute Replay Controller”
NET STOP “SQL Server Distributed Replay Client”
NET START “SQL Server Distributed Replay Client”
On each server that has the services installed
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Configuration
The Rest of the Story.......
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Configuration
Check for errors
C:\Program Files (x86)\Microsoft SQL Server\110\Tools\DReplayClient\Log
Failed to connect controller with error code 0x80070005
Error code 0x80070005 means “Access is denied”
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Component Services
Configuration
Start -> Run and type dcomcnfg
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Configuration
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Configuration
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Configuration
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Configuration
Restart the services on all the servers
NET STOP “SQL Server Distribute Replay Controller”
NET START “SQL Server Distribute Replay Controller”
NET STOP “SQL Server Distributed Replay Client”
NET START “SQL Server Distributed Replay Client”
On each server that has the services installed
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Configuration
Check the Distributed Replay Client log file
C:\Program Files (x86)\Microsoft SQL Server\110\Tools\DReplayClient\Log
“Registered with controller <ControllerServerName>”
“Failed to connect controller with error code 0x800706BA
<ClientServername> client may not connect to controller “
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Fire Wall
Configuration
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Configuration
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Configuration
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Configuration
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Configuration
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Configuration
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Configuration
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Configuration
Restart the services on the server
NET STOP “SQL Server Distributed Replay Client”
NET START “SQL Server Distributed Replay Client”
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Configuration - Verify Log files
<ControllerServerName>
<ControllerServerName>
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Let the games begin
Collection
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Demo
Collection
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Collection
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Collection
DReplay preprocess
-i input_trace_file
-d controller_working_dir
[-m controller]
[-c config_file]
[-f status_interval]
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Replay
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Replay
c:\>DReplay replay –d c:\DistRePlay –w client1, client2
DReplay replay
-d controller_working_dir
-w clients [-o]
[-m controller] [-s target_server]
[-c config_file] [-f status_interval]
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Results
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Usage and Presentation
Uses
Results
• Application load testing
• Tables
• Physical vs Virtual computing
• Graphs
• Metrics for distributed computing
• Analytics
• TDE load
• Metrics
• System upgrades
• Hardware upgrades
• Index tuning
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Results – Read Latency
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PowerShell
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Change in Domain
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Change in Domain
Controller configuration file
DReplayController.config
Changes location when you change domains
Client configuration file
DReplayClient.config
Modify location in the configuration
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Common issues
Error DReplay The client ‘ClientServerName’ is not a
registered distributed replay client. Make sure that the
SQL Server Distributed Replay Client services is running
on ‘ClientServerName’ , and that the client is registered
with the controller ‘localhost’.
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Common issues
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QUESTIONS
Resources
Distributed Replay:
http://bit.ly/1OQUhGA
Requirements including events:
http://bit.ly/1GRIiC6
Parameters for Replay:
http://bit.ly/1Gh8Gum
My Blog:
SQLMelody.blogspot.ca
My Email:
[email protected]
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Thank You