WebLogic Server Monitoring System

Overview

This monitoring system provides comprehensive monitoring capabilities for WebLogic Server environments, generating HTML reports with detailed information about server status, heap usage, JDBC connections, and JMS resources. The system automatically sends email notifications with color-coded alerts based on the server's health status.

Features

• Server status monitoring (state and health)
• JVM heap usage analysis
• JDBC connection pool monitoring
• JMS queues and topics status
• Automated email notifications with status alerts

Prerequisites

• Oracle WebLogic Server 12c or later
• Oracle Middleware Home configured
• Python with WLST support
• Linux/Unix environment
• Sendmail configured for email notifications

Directory Structure

$MW_HOME/
├── Oracle_Home/
│   └── user_projects/
│       └── domains/
│           └── test_domain/
└── scripts/
    └── wlst/
        ├── monitor_all_servers.py
        └── monitor_weblogic.sh

Configuration

1. Set the following environment variables in monitor_weblogic.sh:

   export MW_HOME=/home/username/Oracle/Middleware/Oracle_Home
   export DOMAIN_HOME=$MW_HOME/user_projects/domains/test_domain
   SCRIPT_PATH=/home/username/oracle/scripts/wlst
   SERVERS=webLogic
   PORT=7001
   EMAILS="[email protected]"

2. Update WebLogic credentials in monitor_all_servers.py:

   connect('webLogic', 'your_password', 't3://%s:%s' % (sys.argv[1], sys.argv[2]))

Monitoring Components

Server Status Monitoring

• Server state (RUNNING, STOPPED)
• Health status (OK, WARN, CRITICAL)
• Color-coded status indicators:
  • Green: Healthy/Running
  • Yellow: Warning
  • Red: Critical/Down

Heap Usage Monitoring

• Current heap free space
• Total heap size
• Heap free percentage
• Warning thresholds:
  • Yellow: ≤ 20% free
  • Red: ≤ 10% free

JDBC Monitoring

• Connection pool status
• Active connections count
• Waiting connections count
• Pool state monitoring

JMS Monitoring

• JMS server status
• Queue/Topic metrics:
  • Current message count
  • High message count
  • Consumer statistics
  • Destination type

Usage

Running the Monitor

./monitor_weblogic.sh

Alert Levels

• [GREEN]: All systems normal
• [WARNING]: Non-critical issues detected
• [CRITICAL]: Critical issues requiring immediate attention

Email Notifications

The system sends HTML-formatted emails containing:

• Color-coded status indicators
• Complete server status report
• Resource utilization metrics
• JMS and JDBC statistics

Security

Java Security Manager configuration:

export JAVA_OPTIONS="-Djava.security.manager -Djava.security.policy=$MW_HOME/wlserver/server/lib/weblogic.policy ${JAVA_OPTIONS}"

Troubleshooting

1. If the script fails to connect:

   • Verify WebLogic server is running
   • Check credentials and port numbers
   • Ensure WLST path is correct

2. If emails are not received:

   • Verify sendmail configuration
   • Check email addresses in configuration
   • Verify file permissions