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Oracle WebLogic Server 12c Advanced Administration Cookbook

By : Dalton Iwazaki
Book Image

Oracle WebLogic Server 12c Advanced Administration Cookbook

By: Dalton Iwazaki

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Oracle WebLogic Server 12c Advanced Administration Cookbook
Dalton Iwazaki
Jun, 2013 | 284 pages
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Table of Contents (15 chapters)
Oracle WebLogic Server 12c Advanced Administration Cookbook
Oracle WebLogic Server 12c Advanced Administration Cookbook
Credits
Credits
About the Author
About the Author
About the Reviewers
About the Reviewers
www.PacktPub.com
www.PacktPub.com
Preface
Preface
Free Chapter
1
Install, Configure, and Run
Install, Configure, and Run
Introduction
Installing WebLogic Server 12c
Creating the WebLogic domain
Distributing the domain files to remote machines
Starting the Node Manager
Starting the Administration Server
Saving and activating changes in the Administration Console
Protecting changes in the Administration Console
Extending and customizing the Administration Console
Enabling RESTful Management Services
Starting/Stopping the WebLogic Managed Server
Deploying applications
2
High Availability with WebLogic Clusters
High Availability with WebLogic Clusters
Introduction
Creating a WebLogic cluster
Defining a Hostname/Alias for the Listen Address value
Configuring HA WebLogic cluster parameters
Using Unicast for cluster communications
Using Multicast for cluster communications
Installing Apache HTTP Server for the Web tier
Using the Web Server Plug-in to load balance HTTP Requests to WebLogic cluster
Defining a network channel for cluster communications
Configuring high availability for Administration Server
3
Configuring JDBC Resources for High Availability
Configuring JDBC Resources for High Availability
Introduction
Creating a JDBC data source
Creating a multi data source
Defining the multi data source HA Strategy
Creating a GridLink data source
Managing JDBC data sources
Tuning data sources for reliable connections
Tuning multi data sources – surviving RAC node failures
Updating the Oracle JDBC driver
4
Configuring JMS Resources for Clustering and High Availability
Configuring JMS Resources for Clustering and High Availability
Introduction
Creating the file stores
Creating the JDBC stores
Creating the JMS servers
Creating the JMS module
Configuring the subdeployment target
Creating the distributed queue destination and the connection factory
Starting/stopping consumers for a JMS destination
Using the Server affinity to tune the distributed destinations' load balance
Creating a pinned queue with clustering and HA with service migration
Configuring messaging bridge with source and target distributed destinations
Relying on SAF to transfer JMS messages to another WebLogic domain
5
Monitoring WebLogic Server 12c
Monitoring WebLogic Server 12c
Introduction
Customizing the Administration Console tables
Using the JRockit Mission Control Management Console
Monitoring Linux with SAR
Sending e-mail notifications with WLDF
Generating an SNMP trap
Creating a Monitoring Dashboard custom view
Viewing historical data in the monitoring dashboard using a database
6
Troubleshooting WebLogic Server 12c
Troubleshooting WebLogic Server 12c
Introduction
Changing log levels to debug
Including the time taken field in access.log
Enabling verbose garbage collection logging
Taking thread dumps
Enabling the JRockit Mission Control Flight Recorder
Analyzing a heap dump
Recovering the WebLogic admin password
Recovering the data source password
7
Stability and Performance
Stability and Performance
Introduction
Limiting the log disk usage
Rotating the STDOUT logfile
Turning off domain logging
Enabling Linux HugePages
Configuring the transaction (JTA) timeouts
Choosing the JRockit garbage collection mode
Tuning thread concurrency with the default work manager
Tuning the application thread concurrency with custom work managers
Limiting the JMS Queue consumers
8
Security
Security
Introduction
Setting up SSL for production environments
Creating a new SQL authentication provider
Assigning a user to a group
Securing a web application with basic authentication
Enabling the Administration Port
Index
Index

Enabling Linux HugePages

Enabling Linux HugePages can improve the performance of the Oracle JRockit JVM and have several advantages over the default page size of 4 KB in Linux.

In this recipe, the HugePages will be enabled on all machines in the PROD_DOMAIN domain. A new JVM parameter will be added to the Managed Servers so the JVM makes use of the HugePages.

prod01 hosts the PROD_Server01 and PROD_Server02 Managed Servers. Since each instance is configured with a heap size of 2 GB, reserving 4 GB for HugePages in prod01 should be enough.

Getting ready

Before configuring the Linux HugePages, shut down all WebLogic Servers in the domain. Also stop the Administration Console instance and the Node Manager.

How to do it...

To enable the Linux HugePages, you must log in as root user:

  1. Log in as root user to the shell and execute the following commands to check the HugePages configuration:

    [root@prod01]$ cat /proc/meminfo | grep Huge
HugePages_Total:     0
HugePages_Free:      0
HugePages_Rsvd:      0...
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