lsi's vmware vcenter plug-in: a study in the use of … · lsi's vmware vcenter plug-in:...
TRANSCRIPT
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2010 Storage Developer Conference. LSI Corp. All Rights Reserved.
LSI's VMware vCenter Plug-In:A Study in the Use of Open Source
Software
Erik JohannesBrian Mason
LSI Corp
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Goal
The goal for the presentation is to share our experience with open source in the hope that it will provide insight and guidance.
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Bio – Brian Mason
Staff Software Engineer at LSI Master in Computer Science 20+ years development experience Most of the past 11 developing Management and
Control Software for hardware devices.
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2010 Storage Developer Conference. LSI Corp. All Rights Reserved.
Bio – Erik Johannes
Staff Software Engineer at LSI Master of Computer Science 25 years industry experience Variety industries including Storage,
Telecommunications, and ATE.
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Agenda
Brief BackgroundWhat our group doesArchitectural Overview of LSI vCenter plug-in
Options and ConsiderationWhy Open Source?Evaluation Criteria
Experience with Specific packagesRuntime Open Source LibsDevelopment Tools
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2010 Storage Developer Conference. LSI Corp. All Rights Reserved.
LSI’s Engenio Storage Group
The Engenio Storage Group develops storage products:Host Bus Adapters and Internal RAID controllersNAS GatewaysExternal RAID systems
Many of our products are sold through OEM partnerships.
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LSI’s Application Aware Solutions
The goal is to integrate with End User Applications Management of our Storage Arrays. Improve the efficient use of our Storage Arrays.Provide a single pane of glass familiar to user.
Integration examples areOracle’s Enterprise Manager.Microsoft’s System Center Operations Manager.VMware’s vCenter virtualization manager.
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Management TLA Soup Defined
Hyper Text Transport Protocol (HTTP/HTTPS) eXtensible Markup Language (XML) Distributed Management Task Force (DTMF) Common Information Model (CIM) Web-Based Enterprise Management (WBEM) Storage Management Initiative Specification (SMI-S) CIM Object Manager (CIMOM) Virtual Machine (VM) Virtual Infrastructure or VMWare Infrastructure (VI)
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VMWare vCenter/vSphere
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vSphere Plugin Integration
The plugin is registered with the server Registration indicates where in the client to display
plugin and the URL for the plugin Client display integration points include:Additional Tab added to object’s displayObject’s right click menu itemsAn icon added to the home page The entire display
Recommend following VMWare UI guidelines
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The vSphere Client
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LSI’s vCenter plug-in Architecture
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Agenda
Brief BackgroundWhat our group doesArchitectural overview of LSI vCenter plug-in
Options and ConsiderationsWhy open source?Evaluation criteria
Experience with specific packagesRuntime open source libsDevelopment tools
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Why We Use Open Source
Free as in SpeechFast Bug fix turn aroundFreedom to fix it ourselvesNothing is hiddenMany testers
Free as in BeerNothing is free, but often cheaperCost in Evaluation and Internal Support
Often Best in Class14
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Evaluation Criteria
Does it meet out needs? Can I compile it? Is it an Active Community?Frequent / Current ReleasesActive Wiki or mail group
Is it standards based?
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2010 Storage Developer Conference. LSI Corp. All Rights Reserved.
Agenda
Brief BackgroundWhat our group doesArchitectural Overview of LSI vCenter plug-in
Options and ConsiderationWhy Open Source?Evaluation Criteria
Experience with Specific packagesRuntime Open Source LibsDevelopment Tools
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Runtime Open Source Libs
Java Jetty SBLIM GWT And GWT Incubator
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Java
The whole plug-in is written in Java The system is packaged as a Web Application Can be deployed on JEE Application ContainerWe shipped Jetty
Used Java 6 Used JMX for monitoring JSR 48 Compliant CIM Client (More later)
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Java Development Advantages
Familiar syntax makes for an easy transition. Object oriented. Lowers concerns about resource leaks. Massive library support Rich IDE Support Built in remote debugging and profiling Compiles very fast
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Java Deployment Advantages
Extremely stableHas redefined P1 bugs
Runs on all platforms we need (AIX, HPUX, Solaris Windows, Linux, Mac)
Single compile target for all platforms No DLL Issues Built in monitor via JMX Fast performance
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Details System Architecture
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HTML/CSS/ Java ScriptGenerated Code
JEE App Server (Jetty)
Plug-in Servlets
Java VM
JMX MBeans
Client
Server
JSON/HTTP
CIM Server
LSI Storage Arrays
CIM/HTTP(s)
Symbol
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Runtime Open Source Libs
Java Jetty SBLIM GWT And GWT Incubator
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Jetty
Open Source “light weight” Web Server Java Web Application Container Static HTML Servlets / JSP SSLMany more …
Pluggable Architecture Used as our App Server
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Tomcat Alternative
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Jetty (6.1.x) Tomcat (6.x)
Memory Footprint(With our WAR)
28MB 38MB
Modular Yes No
Servlet/JSP Support 2.5/2.1 2.5/2.1
Embeddable Yes No
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Runtime Open Source Libs
Java Jetty SBLIM GWT And GWT Incubator
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WBEM Stack
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WBEM Client
CIM/XML
HTTP Transport
CIM Server
Provider Provider
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SBLIM Java Client
Used as CIM client Has a 1.x And 2.x version streams 2.x (2.1.5 current)Requires Java 5 or higher(Generics) Implements JSR 48
1.x and 2.x NOT COMPATIBLE Source package change for JSR 48No known upgrade path
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Why SBLIM
Presents a CIM logical abstractionCIM InstanceCIM ClassesTyped Key / Value PropertiesAssociations
No XML Processing!! Supports indications
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Logical CIM Functions in SBLIM
NavigationEnumerate ClassesEnumerate InstancesEnumerate Association ClassesFollow Associations
FilteringFilter PropertiesFilter Instances returned by Assocations
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SBLIM Sample
WBEMClient client=getClient();CIMProperty prop; CloseableIterator<CIMInstance> poolIt; poolIt=client.associatorInstances(storageSystem,
"CIM_HostedStoragePool", "CIM_StoragePool", "GroupComponent", null, false, null);
while (poolIt.hasNext()){CIMInstance poolInst = poolIt.next();prop=poolInst.getProperty("ElementName");String name=prop.getValue().toString();System.out.println(name);
}poolIt.close();
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Runtime Open Source Libs
Java Jetty SBLIM GWT and GWT Incubator
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GWT
Google Web Toolkit Used for Developing Rich Internet Applications A set of tools and libraries Compiles Java to Java Script Supports a sub section of Java Language and
PackagesAllows for “Native” Java Script
Rich Debugging Both Client and Server Side
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GWT Client Side
GWT Abstracts JavaScript DetailsAllows Programmer to work in JavaAvoids cross browser JavaScript Issues
Does not protect against CSS Issues
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GWT Client Code Example
public void onModuleLoad() {Label label = new Label("Hello, GWT!!!");Button button = new Button("Click me!");button.addClickHandler(new ClickHandler() {
public void onClick(ClickEvent event) {label.setVisible(!label.isVisible());}});
RootPanel.get().add(button);RootPanel.get().add(label);
}
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GWT Server Communication
The client side communicates with the server side Uses RPC to communicate with server over HTTP Easy to pass Java objects back and forth Has both Synchronous and Asynchronous Project Used Asynchronous Nonblocking, call returns immediatelyCallback is called with server response
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GWT Asynch Comm Example
Define the Interfacepublic interface MyService extends RemoteService {public String myMethod(String s);
}
Server implements the Interfacepublic class MyServiceImpl extends RemoteServiceServletimplements MyService
{public String myMethod(String s) {// Do something interesting with 's‘ on the server.return s;
}}
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GWT Asynch Comm cont.
Asynchrounous interface is used to make callinterface MyServiceAsync {public void myMethod(String s,
AsyncCallback<String> callback);}
AsyncCallback<T> InterfaceonSuccess(T result) onFailure(Throwable caught)
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The GWT Client call
MyServiceAsync myService = (MyServiceAsync) GWT.create(MyService.class);
AsyncCallback callback = new AsyncCallback() {public void onSuccess(String result) {// do some UI stuff to show success
}public void onFailure(Throwable caught) {// do some UI stuff to show failure
}};
myService.myMethod(“Hello There”, callback);
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Caution Notes with GWT
CSS Issues 2.x has Widgets for both Quirks and Standard ModeWidgets cannot be used togetherNo compile time check, just runtime weirdness
Avoid modifying displayed tablesVery slow modifying displayed elementsCreate New Elements and ReplaceMuch Worse in IE than others
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GWT Incubator Project
GWT has limited set of controls Incubator helps to fill out some of the gaps Use With Caution! Its not all cooked IncludesTables, Panels, Status Validation LibraryLogging LibraryGraphics Library
We have used Tables and Logging40
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GWT Incubator Example
GWT Incubator Paging Scroll Table
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Open Source Tools
IDEEclipseNetbeansBoth have GWT &SVN plug-insWhy Use Both?
Build and IntegrationANT JunitHudson
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ANT and JUnit
ANT replacement for makeMore PowerfulExtensible
JUnit is Unit Test Frame Work Both deserve a separate presentation
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Hudson
Continuous Build Server Monitors VCS for changesChecks out codeBuilds code/run testsPublishes results
plug-in ArchitectureWorks with many VCS Integrates with many build systems
Is Java, but builds anything. (We do Java and C++)44
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Hudson Dashboard
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Hudson Project Screen
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Would we use it Again?
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Tool Use it again
Java Yes
ANT Yes
Junit Yes
SBLIM Yes
GWT Maybe
Jetty Yes
Hudson Yes
![Page 48: LSI's VMware vCenter Plug-In: A Study in the Use of … · LSI's VMware vCenter Plug-In: A Study in the Use of Open Source Software Erik Johannes Brian Mason. ... The Engenio Storage](https://reader030.vdocuments.us/reader030/viewer/2022013015/5b5f761d7f8b9aa3048eee3e/html5/thumbnails/48.jpg)
2010 Storage Developer Conference. LSI Corp. All Rights Reserved.
QA
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![Page 49: LSI's VMware vCenter Plug-In: A Study in the Use of … · LSI's VMware vCenter Plug-In: A Study in the Use of Open Source Software Erik Johannes Brian Mason. ... The Engenio Storage](https://reader030.vdocuments.us/reader030/viewer/2022013015/5b5f761d7f8b9aa3048eee3e/html5/thumbnails/49.jpg)
2010 Storage Developer Conference. LSI Corp. All Rights Reserved.
Reference Links
http://sourceforge.net/apps/mediawiki/sblim/index.php?title=CimClient
http://code.google.com/webtoolkit/ http://code.google.com/p/google-web-toolkit-
incubator/ http://hudson-ci.org/
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