Zend Server for IBM istatic.zend.com/topics/zend-server-for-ibmi.pdf · Zend Server for IBM i Mike Pavlak ... DB query results, web service calls, complex or hard-to-get data

© All rights reserved. Zend Technologies, Inc.

Zend Server for IBM i

Mike Pavlak

Solution Consultant

1Insert->Header & Footer


Agenda

•Technical overview of Zend Server for IBM i

• Installation

•Administration

•Features

•Demo

2 Insert->Header & Footer


Zend Server 5 for IBM iwww.zend.com

Technical overview


What Is Zend Server?

• Production quality PHP stack

�PHP, ZF, DB connectivity, debugging extension, and more

• Two Editions - Free “Community Edition”provided by IBM & Full commercial edition

�Both are production ready

• Application monitoring and diagnostics (integrated with Zend Studio)

• Multi-level performance enhancement capabilities

• Software updates and security hot fixes

• Easy and quick installation

• Zend Framework Integration

4 What is Zend Server


Zend Server for IBM i

•Next generation of PHP stack for IBM i

•Best of both Zend Core and Zend Platform

•Single Licensed Program Installation

•Two products

�Zend Server for IBM i Community Edition

• Available at no charge per IBM partnership

�Zend Server for IBM i

• Subscription available from Zend

• High value extra features

• Higher Support SLAs



Why a new generation?

•Based on feedback of key areas for Improvement

• Improved basic PHP Performance

�30% to 600% depending on the application

•New capabilities

�Code Tracing – Faster problem resolution

�Job Queue – Performance and scalability

�Page Caching – Performance and Scalability

�Support for PHP 5.3

•Easier installation, administration & maintenance



Zend Server for IBM iwww.zend.com

Installation


Zend Server Installation

•Current installation is beta

•Save File Only, Windows installer by GA

•Fast CGI built by IBM requires PTF’s

�Current group for 57nnDG1 – IBM HTTP Server for i5/OS

�http://www-912.ibm.com/s_dir/sline003.nsf/GroupPTFs?OpenView&view=GroupPTFs

�V5R4

• PASE – SI36004

• HTTP – SI36026

�i6.1

• PASE – SI36005

• HTTP – SI36027



Zend Server Installation

•Optionally installs MySQL 5.n +

• Install side by side with Core/Platform

�Port 10088 (can be changed via IBM interface on port 2001)

�Migrate existing PHP code manually

�Test, test, test

�Flip the port and you are ready to go!

�See performance improvements first hand


© All rights reserved. Zend Technologies, Inc.10

Zend Server

Zend Server Under the Covers

HTTP:10088

Server(FastCGI)

IBM i

i/OS

DB2 UDB

PHP CGI

PHP filePASE

*PGM

CMD

ILE Apache:10088

• Default

configuration

FastCGI


Zend Server Administration

•New unified interface for all Zend controls

•Multi platform consistency in the interface

•Apache changes

�Single server (YAY!)

�PASE server eliminated

�IBM HTTP Server Powered by Apache

�PHP implemented using Fast CGI developed by IBM

�Restart button saves round trip to green screen!



Zend Server Administration




Caching


Optimizer+

Eliminates what’s not needed

�Opcode cache

• Caches the PHP bytecode in RAM

• Significantly reduces disk access

�Opcode optimizer

• Optimizes certain code fragments to improve execution speed

Now part of the free Community packge



Data Caching

Provides a set of API functions for caching data items

�DB query results, web service calls, complex or hard-to-get data

�Output elements

�Allows skipping slow PHP code chunks

�Shared memory and Disk storage backends

�Data could be grouped using namespaces

�APC user cache compatibility layer

�Zend Framework Zend_Cache_Backend adapters



Page Caching

Don't execute a single line of PHP if you don't have to

�Caches entire HTTP response

�Configured from UI, no code changes required

�Live / cached decision is based on request or session parameters

�Variants can be created based on request or session parameters



Page Caching




Monitoring & Code Tracing


Application Monitoring

Zend Server Monitor will watch your application for:

�PHP Errors (including warnings, notices, uncaught exceptions...)

�Failing functions (user-defined or internal)

�Failing DB queries

�Slow functions (user-defined or internal) or DB queries

�Slow request executions

�High memory consumption

�Errors reported by Zend Server components

When an issue is detected, Zend Server reports an event

19 Code Tracing


Monitoring Events



Code Tracing

•Eliminates the need to reproduce problems

•Records live application execution when problems occur

•Activated through Zend Server monitoring rules or manually

•Works in a live production environment or in a test lab

•Cuts Root Cause Analysis Time by up to 50%

Root Cause Analysisreproduce problem - debug

Root Cause Analysisanalyze code trace

Problem resolution time

without Code Tracing

Problem resolution time

with Code Tracing

Fix

Fix


Code Tracing – Data Capture

•Reproducing an issue is not always possible

�Dependency on specific SESSION or database state

�Dependency on server load

�“Replaying” the request is risky or impossible

•Code Tracing captures the entire execution flow:

�Execution tree including function calls and included files

�Function arguments and return parameters

�Output and header generation

�Location of errors, exceptions and Zend Monitor events

�For each node, execution time and memory usage is measured


DVD-Like Playback of Application Problems

•Opening a Trace File enables you to “playback” the request execution flow using two perspectives:

•A Tree perspective: Pinpoint root cause by viewing the sequence of function calls

�Highlights the critical path of function execution flow (duration)

�Pinpoints events leading up to an error


DVD-Like Playback of Application Problems

•A Statistics perspective: displays traced data from a function perspective

�Execution time: aggregated and a break down of each function

invocation

�Memory consumption: aggregated

and a break down of each function

invocation

�Total number of calls


Code Tracing Supported Workflows

•Monitoring workflow:

�When a monitoring event is created, the associated trace data of

the specific request is captured

�Trace data is attached and associated to the monitoring event

•Manual tests/functional workflow:

�Manually through the GUI or from a browser by adding a

parameter to the request

•Production workflow

�Can be activated automatically in case of a Zend Monitoring

event, for example a PHP error, a slow execution or high memory

usage


Zend Server 5: Technical Overviewwww.zend.com

Job Queue


Job Queue allows you to...

•Put certain tasks into a separate execution queue

�Off-load to new process (or defer to a later time)

�Off-load to a different server

•Execute certain tasks at a specified time

�Distribute processing load to off-hours

•Execute certain tasks periodically

•While..

�Maximizing reuse of existing infrastructure & code

�Making sure nothing falls between the cracks

�Doing it all from a PHP API

27


Creating Jobs

•Jobs are created using the createHttpJob() method

•Pass parameters

�Simple ones, via query string $_GET

�Complex ones, as an associative array of key => value pairs

•Set job options

�Name, priority, schedule, etc.

�Create deferred or recurring jobs

•Or… create from the UI


$queue = new ZendJobQueue(); $queue->createHttpJob(

'http://backend.local/jobs/somejob.php');


Job Queue Management

View job status and manage execution

29 JobQueue


Other Job Capabilities

� Managing priorities

� Job dependencies

� Querying for jobs

� Checking job status and queue statistics

� Suspending and resuming recurring jobs & queues

� Passing custom HTTP headers

� Failure handling and retry control

� Load management and balancing


Zend Server on IBM i – What’s different on i?

•Clustering not supported

�IBM i customers scale vertically

�Clustering helps Intel based solutions scale horizontally

•Server replicating

�Since we scale horizontally, this feature is not needed.

•Download Server

�Most IBM i applications are transaction based

�Little need for downloads, etc.

•Tell us your needs…



Demo Agenda

•Monitoring

�My broken script

•Job Queue

�Submit PDF’s to batch

•Code Tracing

�My broken script again?


© All rights reserved. Zend Technologies, Inc.33 Insert->Header & Footer

Q&A

Documents

Zend Server for IBM istatic.zend.com/topics/zend-server-for-ibmi.pdf · Zend Server for IBM i Mike Pavlak ... DB query results, web service calls, complex or hard-to-get data