Events User Manual

Internal

• esa

Overview

A HttpEvent contains all the query parameters under a “query” MapProperty.

A HttpEvent contains all the incoming headers under a “incoming-headers” MapProperty.

Business Scenario Measurement Procedure

Record the Load Scenarios

Record interaction with a load generator. This example was based on NeoLoad.

Mark the start of the target business scenarios.

Design -> Virtual User Profiles -> Style Reader -> Actions -> Style - Seasons - Style - Style Sample - Style Gallery -> First Page -> First request in the page -> Advanced -> Request headers:

Add a new header: "Business-Scenario-Start-Marker" (the exact name is available in BusinessScenario.java). The value of the header should be business scenario type.

Mark the end of the target business scenarios.

Design -> Virtual User Profiles -> Style Reader -> Actions -> Style - Seasons - Style - Style Sample - Style Gallery -> RequestHandler_16 -> First request in page -> Advanced -> Request headers:

Add a new header: "Business-Scenario-Start-Marker" (the exact name is available in BusinessScenario.java). Empty value.

Save.

Prepare the Target Environment

Configure the Access Log Output

This is necessary to be done once.

Stop the server.

cd /c/ovidiu/bin
./environment.sh stop

Update the application server configuration file (if you copy and paste, open this in edit mode to correctly copy quots:

       ...
       <subsystem xmlns="urn:jboss:domain:undertow:1.1">
            ...
            <server name="default-server" >
                ...
                <host name="default-host" alias="localhost">
                    ...
                    <access-log pattern=""%I" %h %u [%t] "%r" "%q" %s %b %D %{i,Business-Scenario-Start-Marker} %{i,Business-Scenario-Stop-Marker} %{c,JSESSIONID}"/>
                    ...
                </host>
            </server>
      </subsystem>
      ...

Start the Environment

On the target environment, reset the application server node:

cd /c/ovidiu/bin
./environment.sh start

The start script will also clean the previous logs.

Shut Down and Collect Data

cd /c/ovidiu/bin
./environment.sh stop

All log data is collected and zipped under /c/ovidiu/data/load-data-yy-mm-dd-hh-mm-ss...zip

Download the test data locally via the QLB-APP02-Redirected-Folder on NOMBP2.

Unzip it in its own separated directory.

The data export script keeps the access log as “access_log.log” and places the definition of the access log fields in access_log.def.

Data Processing

Do initial parsing:

esa < ./access_log.log --input-format-file=./access_log.def 

esa < ./access_log.log --input-format-file=./access_log.def  describe

Extract per-scenario statistics:

esa < ./access_log.log --input-format-file=./access_log.def perf > business-scenarios.csv

Scatter plot the results.