EAS303

Information about EAS303

Published on November 21, 2007

Author: Marian

Source: authorstream.com

Content

EAS303 Customers Speak out:  EAS303 Customers Speak out Chris Bohne Consultant [email protected] 775-790-3018 8/6/2003 EAS303 Customers Speak out:  EAS303 Customers Speak out Karen McDonald Consultant [email protected] 775-790-1020 8/6/2003 TEXAS WORKFORCE COMMISION (TWC):  TEXAS WORKFORCE COMMISION (TWC) Onestop application for people receiving employment and training services called TWIST. Collects information on clients . Tracks services received. Reports to both Federal and State agencies. Background TWC ENVIRONMENT :  TWC ENVIRONMENT Users. 10,000+. Distributed throughout the State of Texas. Some inside the firewall some outside. Network. Various connection speeds From T3 to 256K. Application. 15 to 20 concurrent DB transactions. 20 to 25 concurrent EA server requests. 1.3 Million requests processed by EA Server per day. TWC ENVIROMENT (cont.):  TWC ENVIROMENT (cont.) EA Server. IBM AIX 5.1. EA Server 4.2. PB 8.0.3. Clients. Windows 95 to Windows XP. TWC OBJECTIVES:  TWC OBJECTIVES Simplify release process. Reduce the amount of client releases. Reduce the size of the client. Remove business rules from client. Allow new functionality to be added without the need for client releases. Why use EA Server TWC CONCEPT :  TWC CONCEPT Phase 1 – Convert existing application. Take existing application and convert all DB access to NVO’s running on EA Server. Retrieve. Update. Embedded SQL Statements. Why? Help size machine requirements. Faster then completely rewriting application. Allow users to be added to EA Server gradually. Completed June 2002. Convert to EA Server in 2 phases TWC CONCEPT (cont.):  TWC CONCEPT (cont.) Phase 2 – Redesign application for EA Server. Incorporate new business requirements into new application. New programs. New data model. Complete redesign of business process. Original design was 1996-1997. Case based to customer based. New application architecture. Started with 2 EA Servers, currently using six EA Servers. Reports moved to web. Completed March 2003. Convert to EA Server in 2 phases PHASE 2 :  PHASE 2 Request broker design. Single interface between client and EA Server. Data passed by blob. Advantages. Proxy never changes. Easy to monitor server use. Single focal point for solving problems . Compression. Performance Monitoring. Disadvantages. Requires Client to make request through single function. Longer time to develop base architecture. Architecture COMPRESSION:  COMPRESSION Advantages. Reduce blob size 80%. Decrease network utilization. Increase data transfer times. Disadvantages. Increase processing time. Getting it working. Compression uses ZLIB open source code. http://www.topwizprogramming.com/freecode/zlib.zip (Windows) http://www-1.ibm.com/servers/aix/products/aixos/linux/download.html (AIX) CONNECTION CACHE :  CONNECTION CACHE Pooled. Set value 10. Forced. Database locks. Performance problems. Issues. 10 Total. Cache limit plus context limit ct-library (CS_MAX_CONN, default 25). 10 + 25 = 35 (Total max that could be created). CONNECTION OPTIONS :  CONNECTION OPTIONS ORBIdleConnectionTimeout. Disconnects user after the number of seconds set in this property . Default 0 (Never timeout). ORBRetryCount. Specifies the number of times to retry when the initial attempt to connect to the server fails. Default 5. ORBProxyHost. Needs to be set if outside our firewall. Can only be set to a single server. If set all request are processed by this server. CREATING OBJECTS :  CREATING OBJECTS Connection Object. CreateInstance JaguarORB. string_to_object _Narrow createSession CREATING OBJECTS (cont.):  CREATING OBJECTS (cont.) Load Balancing Load balancing is done on the client. Client tells name server(s) it wishes to create object. Name server returns where to create the object. Object created on the server returned above. Function executed. CREATING OBJECTS (cont.):  CREATING OBJECTS (cont.) Firewall How can you determine at runtime if a user is inside or outside the firewall. Code in a of_Connect of the connection object. … This.CreateInstance(lnv_rb, "Common/n_broker") IF not isvalid(lnv_rb) THEN this.Disconnect() this.options = "ORBNameServiceURL='" + this.location + "', ORBProxyHost=“server1”, + & ORBSocketReuseLimit=1, ORBIdleConnectionTimeout=30“ This.connecttoserver() This.CreateInstance(lnv_rb, "Common/n_broker") END IF … FIREWALL ISSUES:  FIREWALL ISSUES Load Balancing If ORBProxyHost is set then all objects are directed to that server. So what if you have more than one machine? Firewall settings. Outside Inside Server1:9000 Server1:9000 Server1:9001 Server2:9001 Server1:9002 Server3:9003 SERVER SIDE CODING:  SERVER SIDE CODING Try Catch Blocks. Used in every function on server. Prevents the server from hanging on certain errors. Allows logging of the errors. Error logging. this.GetContextService("ErrorLogging", iel_log) MONTORING TOOL:  MONTORING TOOL Jag Manager. Single Server at a time. No ability to collect information. Jag Monitor – Powerteam. PowerBuilder source code. Modified to monitor multiple servers . Modified to collect server information. Modified to view entire contents of Jaguar log files. http://www.powerobjects.com/jaguar/jagmon.html Location for constants. $Jaguar\include\jaguar.hpp MONTORING TOOL:  MONTORING TOOL Demo MONITORING (Cont.):  MONITORING (Cont.) IIOP MONITORING (Cont.):  MONITORING (Cont.) Request Broker JAVA:  JAVA Tuning Java. MaxHeapSize. Can be set using. com.sybase.jaguar.server.jvm.maxHeapSize = <XXX> com.sybase.jaguar.server.jvm.options, -Xmx= <XXX> Issues JAVA (cont.):  JAVA (cont.) Tuning Java. MinHeapSize. Can be set using. com.sybase.jaguar.server.jvm.minHeapSize = <XXX> com.sybase.jaguar.server.jvm.options, -Xms= <XXX> LDR_CNTRL (AIX). 2 Gig limit. Each machine has 8 Gigs. Solution. Multiple instances of EA Server on each box. Issues PROBLEM SOLVING:  PROBLEM SOLVING PBVM. Can you still login to EA Server. Are Monitoring tools still reporting. Java. Java core dump. EA Server. Core dump. Utilities programs. tprof svmon ps truss Determining where the problem is. CLUSTERING :  CLUSTERING In the beginning. Two machines clustered. One would go down. Other could not handle load. Breaking apart the cluster. Created own round robin process. Multiple instances on each machine. Create a cluster for each machine. Put all machines into a single cluster. RESULTS:  RESULTS Defect counts. 90% of all defects or enhancements have been able to be released without a client release. Reduced total client code size 70%. Reduced overall program size 80 MB to 25MB. Help file Sybase client libraries SQL anywhere database Better identifying problems. Errors are written to EA Server logs. Performance problems are written to EA Server logs. Errors are then placed in DB for review. DEPLOYMENT:  DEPLOYMENT Perl. Automate jar release. Delete existing jar. Install new jar. Automate setting of properties for components. Max Instances tx_outcome pb.librarylist FUTURE:  FUTURE PB 9. Web. XML. So what’s next? THE END:  THE END Questions.

Related presentations


Other presentations created by Marian

Manchester United 081204
14. 03. 2008
0 views

Manchester United 081204

lecture3
13. 04. 2008
0 views

lecture3

Session2 2 Yves
30. 03. 2008
0 views

Session2 2 Yves

20040820 RepICFA HN
27. 03. 2008
0 views

20040820 RepICFA HN

Cold War 2
18. 03. 2008
0 views

Cold War 2

rcc
12. 03. 2008
0 views

rcc

TGchapter8 Concepts
11. 03. 2008
0 views

TGchapter8 Concepts

Livingalive
04. 03. 2008
0 views

Livingalive

57351 1
28. 02. 2008
0 views

57351 1

SearchingtheInternet
26. 02. 2008
0 views

SearchingtheInternet

gopinath
24. 02. 2008
0 views

gopinath

landforms of canada
02. 10. 2007
0 views

landforms of canada

Power Point Colorado
03. 10. 2007
0 views

Power Point Colorado

Faults and Earthquakes
29. 10. 2007
0 views

Faults and Earthquakes

consumer360 2005 apples
05. 11. 2007
0 views

consumer360 2005 apples

group exercise
03. 12. 2007
0 views

group exercise

SWW3 Chilingaryan
02. 11. 2007
0 views

SWW3 Chilingaryan

Siranjeev 09 04 2006 WOII
13. 11. 2007
0 views

Siranjeev 09 04 2006 WOII

Competition Formats PP MT
16. 11. 2007
0 views

Competition Formats PP MT

tiger presentation
22. 11. 2007
0 views

tiger presentation

cecildb01
13. 12. 2007
0 views

cecildb01

Teaching
05. 12. 2007
0 views

Teaching

VietnamWar
25. 12. 2007
0 views

VietnamWar

Peter Uvin conference paper
27. 12. 2007
0 views

Peter Uvin conference paper

Week 01 Introduction to IPE
28. 12. 2007
0 views

Week 01 Introduction to IPE

atividadefisica
29. 12. 2007
0 views

atividadefisica

f35 frosh sem cryptography
31. 12. 2007
0 views

f35 frosh sem cryptography

Kashmir presentation US India
01. 01. 2008
0 views

Kashmir presentation US India

ellis ed fc fdr
03. 01. 2008
0 views

ellis ed fc fdr

A 3 SMurphy
04. 01. 2008
0 views

A 3 SMurphy

THE COLD WAR
21. 12. 2007
0 views

THE COLD WAR

aquaculture
07. 01. 2008
0 views

aquaculture

brenda final
19. 11. 2007
0 views

brenda final

KS RuralEnvironment Tilden
28. 11. 2007
0 views

KS RuralEnvironment Tilden

05 25 Mayer PMC
29. 12. 2007
0 views

05 25 Mayer PMC

WinterManureApplppt
07. 01. 2008
0 views

WinterManureApplppt

CHEST2
04. 01. 2008
0 views

CHEST2

New AI
21. 11. 2007
0 views

New AI

airforce camp brief
18. 12. 2007
0 views

airforce camp brief

presentation ACFAS2 000
05. 11. 2007
0 views

presentation ACFAS2 000

eifert 9 15 07
03. 01. 2008
0 views

eifert 9 15 07

HowtoDoResearchonMov ies
19. 02. 2008
0 views

HowtoDoResearchonMov ies

item 633 12 Lacis labots
06. 11. 2007
0 views

item 633 12 Lacis labots

3022 office en
27. 11. 2007
0 views

3022 office en

6 3 Groundwater
09. 10. 2007
0 views

6 3 Groundwater

20071103 DUSEL DC
17. 12. 2007
0 views

20071103 DUSEL DC

Its All Politics 1
04. 01. 2008
0 views

Its All Politics 1

Ernesto
01. 10. 2007
0 views

Ernesto

Barish EAC
18. 12. 2007
0 views

Barish EAC

conditional propositions
16. 11. 2007
0 views

conditional propositions

OpeningCreatImpr
05. 11. 2007
0 views

OpeningCreatImpr