1 Insight into World View Tunneling See Doc in TNG Getting Started Guide Appendix G Revised August 14 th 2003.

1

Insight into World View Tunneling

See Doc in TNG Getting Started Guide Appendix G

Revised August 14th 2003

Unicenter Architecture

Class

2

What is wvdbt?

• WorldView database Tunneling (WVDBT)

• Agent Technology service that provides access to remote core

• Requires aws_orb

• CORE proxy for aws_dsm and aws_wvgate running on a different machine


Class

3

Why?

• WorldView DataBase Tunneling (WVDBT)

• With advent of Unix DSM, came a requirement to access Remote CORE in a heterogeneous environment without a need for Ingres Net or SQL Client


Class

4

Unix WorldView

Key Components

• Local DSM

• Remote DSM

• Web Browser

Local DSM+

Remote DSM


Class

5

NT WorldView

•Key Components

•Local CORE

• Remote CORE

• SQL / SQL CLIENT

• CATNGREP

•Atcatngrep - wvdbt version


Class

6

Wvdbt Install Summary

• Must be installed on CORE box. If Unix, this would local DSM server. If Windows, then any server where CORE is accessible by SQL• wvdbt installauto --dependOn=aws_orb

• On the remote Unix Server, choose REMOTE DSM Install option. It will prompt for where repository resides. Enter the name the name of CORE machine.

• If Local DSM option was initially selected, to change it to use wvdbt, de-install local dsm and re-install of Remote DSM. A different shared library is used for Remote DSM option.


Class

7

Wvdbt Install Summary

• On remote dsm server execute wvrepsel to point to CORE. Use -t option as in

wvrepsel -t <RemoteNode> -u sa –p “”

• Start aws_dsm or aws_wvgate on Remote DSM server. It should access the CORE, using remote orb.


Class

8

Wvdbt Install for Windows - Windows

• Install wvdbt where CORE resides. Execute• wvdbt installauto --dependOn=aws_orb

• Start aws_services and ensure wvdbt service is also started

• On a different Windows server, where access to the CORE is required via tunneling, make wvdbt version of catngrep.dll accessible• Take a copy of ca_appsw\catngrep.dll• Copy \tng\services\bin\atcatngrep.dll

ca_appsw\catngrep.dll


Class

9

Wvdbt Install for Windows - Windows

• Execute wvrepsel –t option to point to the Remote CORE

• Start aws_services. aws_wvgate and aws_dsm should access the remote CORE using tunneling


Class

10

LOCAL DSMUNIX

EMEM

IngresIngres

WVWV

WEB ServerWEB Server

UNIXUNIX

Web BrowserWeb Browser

COREATECH (DSM)ATECH (DSM)


Class

11

REMOTE DSMUNIX >> UNIX

EMEM

IngresIngres

WVWV


UNIX1UNIX1

Web BrowserWeb Browser

CORE

EMEM

UNIX2UNIX2

LOCAL DSM + (WVDBT)LOCAL DSM + (WVDBT)

REMOTE DSMREMOTE DSM


Class

12

UNIX >> Windows

EMEM

SQLSQL

WVWV

NTNT

CORE

EMEM

UNIXUNIX

DSM (WVDBT)DSM (WVDBT)

REMOTE DSMREMOTE DSM


Class

13

UNIX -- Windows

EMEM

IngresIngres

WVWV


UNIXUNIX

CORE

EMEM

NTNT

LOCAL DSM LOCAL DSM

WVWV

INGRES CLIENTINGRES CLIENT


Class

14

Windows - WindowsStandard Deployment

EMEM

SQLSQL

WVWV

NT1NT1

DSMDSMSQL CLIENTCORE

EMEM

SQLSQL

WVWV

NT2NT2

DSMDSM

CORE


Class

15

Windows >> Windowswvdbt

EMEM

SQLSQL

WVWV

NT1NT1

CORE

NT2NT2

DSM + WVDBTDSM + WVDBT

DSM+

wtoTargetHost

DSM+

wtoTargetHost

Access via wvdbt NO SQL


Class

16

WVDBT


Class

17

WVREPSEL


Class

18

WVREPSEL

wvrepsel -t gunners1 -u ingres -

p ingreswvrepsel -t

<ntnode> -u sa -p “”

Must start aws_orb


Class

19

Registry Entry

If worldview not installed, then registry entry will not be there


Class

20

Distributed Services Bus (aws_orb)

Distribute State Machine

ObjectStore

DomainManager

NetworkState Machine

SNMPGateway

WorldViewDSM

Gateway

WVDBT

CommonObject

Repository

WvdbtConnection to CORE


Class

21


WVDBT

CommonObject

Repository


WorldViewDSM

Gunners1

Rocking2

Distribute State Machine


Class

22

Port Configuration


Class

23

Data Flow


Class

24

Port Usage


Class

25

INFORM

• REMOTE ORB Heart Beat

• Configured in quick.cfg

• Must disable Heart Beat for ISDN


Class

26

INFORM

• quick.cfg• INFORM_REMOTE NO• HEARTBEAT_FREQUENCY 30


Class

27

INFORM

aws_orb

wvdbt

Inform=NO

heatb

eat

aws_orbaws_stor

e

Inform =Yes

aws_wvgate

aws_dsm

aws_snmp


Class

28

INFORM

aws_orb

wvdbt

Inform=NO

heatb

eat

aws_orbaws_stor

e

Inform =No

aws_wvgate

aws_dsm

aws_snmp


Class

29

INFORM

aws_orb

wvdbt

Inform=Yes

heatb

eat

aws_orbaws_stor

e

Inform =No

aws_wvgate

aws_dsm

aws_snmp


Class

30

INFORM


Class

31

Remote ORBManagement

• Remote ORB Management• All connected?• wvdbt recycled?• HeartBeat Failurer?

• Additional Checks Required• Can be instrumented by policy• SQL Script• FDP utility - dsmWatcher


Class

32

Firewall

Client has a requirement to deploy agent technology Windows DSM outside the firewall but to use a Central Core which resides inside the firewall. Firewall administration has concerns about SQL intrusion and will not open up SQL port. How can aws_wvgate be configured to use a Central CORE without opening a SQL port?


Class

33

Firewall

NT NT

CommonObject

Repository

Aws_orb

aws_store

aws_snmp

aws_dsm

Aws_wvgate

Aws_orb

wvdbt

Aws_dsm (wvPlugin) and aws_wvgate takes about 8 RCB for each Remote DSM connection. This restricts the number of Remote DSMs one can connect to wvdbt server to about 120

1-n


Class

34

Install Customizationfor Windows WVDBT

• Customize Install• If new install, do not select WorldView.• Worldview will not work with tunneling• Use Agent Technology catngrep.dll

• Rename ca_appsw\catngrep.dll catngrep.dll_wv

• Copy \tng\services\bin\atcatngrep.dll ca_appsw\catngrep.dll

• Execute wvrepsel -t


Class

35

Wvdbt service install

• wvdbt installauto --dependOn=aws_orb


Class

36

Windows - Windows

• WorldView• If worldview previously installed,

ensure worldview services are not started or access to catngrep.dll order is changed


Class

37

Windows - Windows

No SQL Requirement

To install DSM without SQL Client requires special considerations


Class

38

Access CORE via tunnel

Windows - Windows


Class

39

Verify connection successful to tunnel machine

Windows - Windows


Class

40

A major finance company has 500 remote offices. At each remote office they have a UNIX SINIX application server, a router and few other machines.

Client requires Central Management and will not allow Ingres to be installed on the application server.

Further more, the connection between the central office and remote offices is via ISDN line.

How can DSM be deployed in this environment? What are the major considerations for running in ISDN environment?

Unix DSM


Class

41

Wvdbt for 2dMap

I´ve been involved in an issue where client has configured remote dsm to connect to local repository through wvdbt because he has a firewall between it.

The configuration works fine for DSM connection with the ATcatngrep.dll copied over to catngrep.dll, but now he complains that he cannot longer start the 2dmap and autodiscovery on the remote DSM box. He gets repository connect errors. With the original catngrep.dll the 2dmap and autodiscovery can connect to repository.

WVDBT is only for aws_dsm , aws_wvgate and wvrepsel. It cannot be used for 2dmap


Class

42

MaxRcb

• By default, worldview 64 rcb per machine. In cases , lot of dsm is expected to connect via wvdbt, then this value should be changed. Update registry to increase max rcb value.

• Maximum value to 1024 (may require maintenance to use this value for older release). Unicenter NSM requires no maintenance for 1024


Class

43

MaxRcb

• Each remote dsm, aws_wvgate and wvplugin take up approx 8 Rcb connections.• 1024 / 8 = maximum 128 remote

connections


Class

44

MaxRcb

• Goto the following registry hive and define MaxRcb with data type dword


Class

45

MaxRcb


Class

46

Questions and Answers

Any questions?Any questions?

1 Insight into World View Tunneling See Doc in TNG Getting Started Guide Appendix G Revised August 14 th 2003.

Documents

dsm aws

unicenter architecture

wvdbt dsm

wvdbt slide

orb aws

orb slide

remote dsm server

sql slide