Testing With Your Data, Your Way! Distributed Replay 1 SQLSat 470 Washington DC December 5, 2015

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

Agenda distributed replay? is it used for? do we set it up? 3 What Why How

4

Why Bottle Neck 5

Why 6

Why - Limitations Step Run to Cursor Toggle Breakpoint 7

8

What Administration ToolReplay ControllerReplay Client(s)Target Server 9

What 10

What – Administration Tool 11

What - Controller 12

What - Clients 13

What – Target 14

15

How Configuration Collection Replay Results 16

Configuration 17

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 19

Configuration - Controller 20

Configuration - Controller 21

Configuration - Client 22

Configuration - Replay 23

Target instance Sequencing Stress scale granularity Connect timescale Think time scale Use connection pooling Health monitor interval Query time out Threads per client Configuration 24 Replay Configuration

Configuration 25

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 26

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” 28

Component Services

Configuration 30 Start -> Run and type dcomcnfg

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

Fire Wall

Configuration 37

Configuration 38

Configuration 39

Configuration 40

Configuration 41

Configuration 42

Configuration 43

Configuration Restart the services on the server NET STOP “SQL Server Distributed Replay Client” NET START “SQL Server Distributed Replay Client” 44

Configuration - Verify Log files 45

Let the games begin

47 Collection

Demo

Collection 49

Trace Events 50

51 Trace File

Collection 52

Collection 53

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

Replay 55

Replay DReplay replay -d controller_working_dir -w clients [-o] [-m controller] [-s target_server] [-c config_file] [-f status_interval] 56 c:\>DReplay replay –d c:\DistRePlay –w client1, client2

Results 57

58

Application load testing Physical vs Virtual computing Metrics for distributed computing TDE load System upgrades Hardware upgrades Index tuning UsesResults Tables Graphs Analytics Metrics Usage and Presentation 59

Results – Read Latency

61

62 PowerShell

63 Change in Domain

Controller configuration file DReplayController.config Changes location when you change domains Client configuration file DReplayClient.config Modify location in the configuration 64

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’. 65

Common issues 66 Empty Result set

QUESTIONS

Resources Distributed Replay: Requirements including events: Parameters for Replay: My Blog: SQLMelody.blogspot.ca My 68

Thank You