Distributed Replay Testing With Your Data, Your Way! Melody Zacharias, Consultant

Melody Zacharias Consultant Chapter Leader / Regional Mentor for Canada ca.linkedin.com/in/melodyzacharias

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Agenda distributed replay? is it used for? do we set it up? 4

Why Bottle Neck 6

Why 7

Why - Limitations Step Run to Cursor Toggle Breakpoint 8

What Administration ToolReplay ControllerReplay Client(s)Target Server 10

What 11

What – Administration Tool 12

What - Controller 13

What - Clients 14

What – Target 15

How Configuration Collection Replay Results 17

Configuration 18

Configuration C:\Program Files (x86)\Microsoft SQL Server\110\Tools Controller configuration file DReplayController.config Client configuration file DReplayClient.config \binn Preprocess configuration file Dreplay.exe.preprocess.config Replay configuration file Dreplay.exe.replay.config

Configuration - Preprocess 20

Configuration - Controller 21

Configuration - Controller 22

Configuration - Client 23

Configuration - Replay 24

Configuration - Replay Configuration  Target instance  Sequencing  Stress scale granularity  Connect timescale  Think time scale  Use connection pooling  Health monitor interval  Query time out  Threads per client

Configuration 26

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 27

Configuration The Rest of the Story

Configuration Check for errors C:\Program Files (x86)\Microsoft SQL Server\110\Tools\DReplayClient\Log Failed to connect controller with error code 0x Error code 0x means “Access is denied” 29

Configuration 30

Configuration 31

Configuration 32

Configuration 33

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 34

Configuration Check the Distributed Replay Client log file C:\Program Files (x86)\Microsoft SQL Server\110\Tools\DReplayClient\Log “Registered with controller ” “Failed to connect controller with error code 0x800706BA client may not connect to controller “ 35

Configuration 36

Configuration 37

Configuration 38

Configuration 39

Configuration 40

Configuration 41

Configuration Restart the services on the server NET STOP “SQL Server Distributed Replay Client” NET START “SQL Server Distributed Replay Client” 42

PowerShell

Configuration Verify Log files 44

45

46 Collection

47

Trace Events 48

Trace File

Collection 50

51 DReplay preprocess -i input_trace_file -d controller_working_dir [-m controller] [-c config_file] [-f status_interval] Collection

Replay 52

Replay DReplay replay -d controller_working_dir -w clients [-o] [-m controller] [-s target_server] [-c config_file] [-f status_interval] 53

Results 54

Uses and Results UsesResults  Application load testing  Physical vs Virtual computing  Metrics for distributed computing  TDE load  System upgrades  Hardware upgrades  Index tuning  Tables  Graphs  Analytics  Metrics

Results – Read Latency

59 Change in Domain

Controller configuration file DReplayController.config Changes location when you change domains Client configuration file DReplayClient.config Modify location in the configuration 60

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’. 61

QUESTIONS

Resources Distributed Replay: Requirements including events: Parameters for Replay: My Blog: SQLMelody.blogspot.ca My 63

Thank You Melody Zacharias Consultant Chapter Leader / Regional Mentor for Canada

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