Symantec I3 - Inquire & Cluster

Symantec i3

AVAILABILITY & PERFORMANCE

2 Symantec Corporation, All Rights Reserved 2005

The Web Applications Environment

Multi-tier applications that can include:– Client (Web browser)

– Web Server

– J2EE Application Server

– Interfaces to external systems

– Database

Worldwide, around-the-clock user access

Usage patterns are not controlled

Management requires the expertise of multiple IT teams


Architecture

WebClients

WebClients

Web Servers

J2EE Server

Oracle Databases Legacy System

ExternalSystem


Symantec i3

Symantec iSymantec i33 is an is an integratedintegrated solution that is solution that is end-user focusedend-user focused. .

Symantec iSymantec i33 provides a built-in provides a built-in methodologymethodology that enables that enables you to effectively manage the you to effectively manage the AvailabilityAvailability and and PerformancePerformance

of business applications.of business applications.


Why an Integrated Solution?

With a multi-tier architecture, IT must:

Align IT to business priorities– Monitor the availability and performance of “business processes”– Monitor “business processes” 24x7 from multiple geographies

– Constantly update the “business processes” by adjusting to real usage patterns initiated by real users

Easily & rapidly detect problems, & analyze in context

Correlate application flow activities among technologies

Pinpoint & analyze their causes

Implement proactive tuning of your performance and availability


Case Study

Enterprise web application running on a 4-tier architecture

International flower ordering service– The system is critical to sales & support activities– The worldwide data center is located in NY

– The central orders database is updated at 10:00pm NY time

– Sales peak around local holidays, e.g. Mother’s Day on May 9 in Italy & USA


Status

Conclusions – symptoms detected Conclusions – symptoms detected

A problem was identified in the check_my_order business transaction from USA & Italy

A synthetic transaction identified the problem

The problem occurred after database update, at 10:05pm NY time (4:05am the next day in Italy)

Next Steps – find the sourceNext Steps – find the source

Identify the problematic page component


Status

Conclusions – source foundConclusions – source found

Java class /verify/orders/country/orders_list.jsp is the problematic component

Next Steps – focus on the reasonNext Steps – focus on the reason

Identify whether this problem also occurs with real transactions


Status

Interim Conclusions – focus on the reasonInterim Conclusions – focus on the reason

We have contrasted synthetic transactions vs. reality

The problem only occurs with synthetic transactions, due to timing (10:05pm NY / 4:05am Italy)

Real users will be affected once the next day starts - Mother’s Day in Italy, USA & some other countries

Next StepsNext Steps

Investigate server side to pinpoint the problematic tier


Status


The J2EE tier is dominating resource consumption

The problematic method is verify_orders_country_orders_list._jspService


Further investigation is needed in the J2EE tier


Status


Smartune ranked JDBC Access Major Time as the main problem


Seek more details and advice


Status

Conclusions Conclusions

The problem is not the database tier, but how frequently the database is accessed

Due to the unusually high number of db queries, time spent in the JSP is too long

Italy and USA behavior differs from other countries’ due to the Mother’s Day high increase in orders

Next Steps – address the problem & verify the solutionNext Steps – address the problem & verify the solution

Instead of querying each order item individually, a new single query that returns all items should be implemented


Case Study SummaryWe have successfully completed the methodology cycle:

DetectDetect

An SLA breach problem was detected by a synthetic transaction in Italy and USA, before the problem was experienced by real users

FindFindA specific JSP is responsible for the slow response time, but only in specific countries

FocusFocus The unusually long order list in Italy & USA caused an exceptional number of connections, resulting in lengthy JDBC access time

ImproveImproveRestructure queries and results pages

VerifyVerifyThe SLA problem has disappeared without affecting real users


Synthetic Transactions Versus Reality

Synthetic transactions indicate availability

They should systematically reflect a dynamic real-world situation

– Identify application usage changes relating to both existing and new applications

– Reflect new delivered functionality

– Reflect trends regarding usage from new locations


Synthetic Transactions Versus Reality

Summary Summary

Systematically analyzed changes in usage pattern

Identified new used functionality, change in usage patterns, and heavily used locations

Based on the findings, the user can now adjust the synthetic transactions to reflect the actual real-world situation


VCS Case Study

Enterprise web application running on a 4-tier architecture

Symantec Cluster Server (VCS) is activated on two machines running Oracle

Each machine switches to the other upon failure


Status

Interim ConclusionsInterim Conclusions

Upon Oracle tier failure, VCS activated failover


Follow the Alerts advice and use the VRTS Cluster Manager to investigate further


Status

ConclusionsConclusions

Oracle ran on sys1

DiskGroup-oradg failed on sys1, hence VCS switched Oracle to sys2

Despite a major problem, the application remained available

But, to ensure availability over the long-term, the problematic resource must be repaired


Proactive & Preventive VCS Actions

Implement a systematic review of resource consumption overtime to forecast utilization

Identify up coming over-consumption

Establish VCS failover policies and assign system resources, accordingly


Proactive & Preventive VCS Actions

Summary Summary

Discovered peak of CPU consumption on server SrvProdD at the end of each month

In the future, this increase will exceed the overall CPU capacities

Based on the findings, the user can now establish an appropriate VCS failover system


&ANSWERS

QUESTIONS

Symantec I3 - Inquire & Cluster

Business

Transcript of Symantec I3 - Inquire & Cluster