OPENSTA

Reg Edit...................................................................................................................................3Example :-.................................................................................................................................4

Distributed Testing..........................................................................................................5Type 1 – Load Generator from Single Machine.......................................................................5

Type 2 – Load Generator From Multiple Machines....................................................................5Parameterization in OPENSTA:................................................................................6

Next Passwd..............................................................................................................................6Checkpoint in OPENSTA...............................................................................................8TEMP FOLDER...................................................................................................................13COMMANDS........................................................................................................................14Retry :- We can use Retry command for any Request.........................................................14LOCATE Command:.............................................................................................................14

Returns an integer value.........................................................................................................14Substring.................................................................................................................................14String.......................................................................................................................................14

Case Blind (optional)..................................................................................................................14Example..................................................................................................................................14Output.....................................................................................................................................14

Reg Edit

Create the TCP parameters in Reg edit for reducing OPENSTA issues like 10048,10054,10038 …

Step 1 – Go to Reg Edit

Step 2 – Hkey_Local_Machine\System\Current Control Set\Services\Tcpip\Parameterd

1.Create a new Reg_Dword Value named as

KeepAliveInterval 10000(decimal)KeepaliveTime 7200000(Decimal)Maxuserport 32768 (Decimal)TcpKeepTries 20 (Decimal)TcpMaxConnectAttempts 20 (decimal)TcpMaxConnectRetransmissions 10 (decimal)TcpMaxDataRetransmissions 10 (decimal)TcpTimedWaitDelay 30 (decimal)TcpWindowSize 64240 (decimal)

Example :- Error 10048 Address already in use "in the error log for the execution: We must change the TCP / IP as the system prevents OpenSTA to allocate more sockets for the connections. It is possible to act on 2 parameters and modified in the registry: MaxUserPort

Description: Sets the port number is greater than TCP / IP can be allocated when an application requires a user port available on the system.

* How to view and define: 1. Use the command regedit, go to the registry subkey

HKEY_LOCAL_MACHINE \ SYSTEM \ CurrentControlSet \ Services \ TCPIP \ Parameters

and create a REG_DWORD value named MaxUserPort.

2. Choose a decimal value greater than or equal to 32,768.

3. Stop and restart the system.

TcpTimedWaitDelay

Description: it is more advantageous in terms of cost to reopen the connection on the client and server to establish a new connection. If you reduce the value of this entry, TCP / IP can release soon closed connections and provide more resources for new connections.

* How to view and define:

1. Use the command regedit, go to the registry subkey

HKEY_LOCAL_MACHINE \ SYSTEM \ CurrentControlSet \ Services \ TCPIP \ Parameters and create a REG_DWORD value named TcpTimedWaitDelay.

2. Choose the decimal value 30, which corresponds to the hexadecimal value 0x0000001e. This sets the timeout to 30 seconds.

3. Stop and restart the system.

Distributed Testing

Type 1 – Load Generator from Single Machine

Step 1 – Select the NameServer Active / Inactive Icon in Right Nav Bottom of the SystemStep 2 – Right Click The Configure menu. & By default it is showing IP or Computer Name

Type 2 – Load Generator From Multiple Machines

Step 1 – Select the NameServer Active / Inactive Icon in Right Nav Bottom of the SystemStep 2 – Right Click The Configure menuStep 3 – Enter the Repository Host as Parent Level Machine IP or Computer NameStep 4 – Restart The NameServer

Parameterization in OPENSTA:

1.In Script modeler Locate the Primary Post URI where login details are passed.

2.Insert mutex locking before the Primary Post URI in which login details are passed.

Acquire mutex “Login”Next UsernameNext PasswdSet My_username=UsernameSet My_password= PasswdLog My_usernameLog My_PasswordRelease mutex “Login”

3.Declare My_username and My_password as LOCAL variables in the Definitions section.

Character*512 My_username, LocalCharacter*512 My_password, Local

4.Declare Username and Passwd as SCRIPT variables in the Definitions section.

Character*512 Username(“wilfred_d”), ScriptCharacter*512 Passwd (“rich_11”), Script

5.Replace the hard coded username password values with the Local variables.

6.Compile the script and do syntax check. Replay the script in script modeler to verify whether values username and password are assigned to Local variables.

7.To fetch username password from File listIn script modeler Navigate to Variable menu click on Create submenu. Enter Variable Name, select scope as script and Value source as File. Enter Data File name and click on Edit button. Enter the values in the Notepad and save the File. Click on Finish button. A character Variable Username with scope as script will be created. It takes the values from the FVR file “mem” located in C:\Program Files\OpenSTA\Repository\Data .

CHARACTER*512 USERNAME, FILE ="mem", SCRIPTCHARACTER*512 PASSWD, FILE ="mem1", SCRIPT

Checkpoint in OPENSTATo verify the response returned back from the server

1. Place the cursor on the Primary Post or Get URI from which you want to capture the response and click on URL details button in script modeler.

2.On the right side HTML view of the response will be loaded. Select Html Tree pane and search for the string “Start Date” by right click on the pane.

3.Click on the corresponding HTML DOM Element and right click and select address.

4.Enter a variable name for the DOM element and click OK.

5. A character variable “Start Date” is automatically created and start date string response is loaded into the variable by the Load response_info command.

6.Insert Checkpoint to check whether the DOM element variable contains “Start Date” and report Pass or Fail status.

7.Compile the script and Replay in script modeler to verify the Test Results which can be seen in Replay Log.

TEMP FOLDERStep 1 : Shutdown the Nameserver.Step 2 : Goto Opensta\Engines\Temp\Step 3 : Delete All files except opensta.org in Temp folderStep 4 : Restart the Nameserver

MONITORING NT PERFORMANCE AND SNMP

NT PERFORMANCE – Monitoring for Windows platformStep 1 : Goto Collectors>NT performanceStep 2 : Double click NT performance collectorStep 3 : Click on Browse Queries button in the Edit Query windowStep 4 : Enter Server IP in Select counters from computer dropdown.Step 5 : Select Performance object and counter list

SNMP Monitoring for Linux PlatformStep 1 : Goto Collectors> SNMPStep 2 : Double click SNMP performance collectorStep 3 : Click on SNMP Server Scan icon and enter From and To IP address and click Scan button.Step 4 : Click + icon and Edit Query window is displayedStep 5 : SNMP agent running IP’s are shown in Address dropdown listStep 6 : Click on Browse Queries button in the Edit Query window

COMMANDS

Retry :- We can use Retry command for any Request

Example :-If the login Request is failed .We can use this command for attempting the Login Request for n-number of times

Syntax : - "Retry: n", &

Pragma:-We can use Pragma for without getting request in cache.It is sending a request directly to server

Syntax:- "Pragma: no-cache", &

LOCATE Command:

Syntax :~Locate(substring,string),Case_Blind

Returns an integer valueIf the substring is not found it returns –1.If it is found it returns the integer offset value of the substring in the source string

SubstringThe character variable or quoted character string to be searched for in the string

StringThe character variable or quoted character string in which substring is to be searched

Case Blind (optional)If Case Blind is not specified the matching will be case sensitive. To override this Case Blind is used.

Example

Eg.1 Set offset=~Locate (Str1, Str2), Case_Blind

Str1 = character variable to be searched

Str2 = Character variable in which str1 is to be searched

Eg.2 Set offset=~Locate (“example”, ”This is an example”), Case_Blind

Output Offset= -1 , if not foundOffset = 11, if found (11 being the offset value of the substring in the string)