Oracle WebLogic Server 14c: JMS Administration — Lesson 2: Queues, Topics, Durable Subscribers, Quotas, Paging, and Persistent Stores

Learning Objectives

• Explain the purpose and operating context of queues, topics, subscriptions, selectors, redelivery, and expiration.
• Apply uniform distributed queues and topics, members, forwarding, and load balancing and quotas, thresholds, blocking send, flow control, paging, and message size in a controlled environment.
• Validate outcomes and troubleshoot risks involving file and JDBC stores, synchronous write policies, health, and recovery.

Detailed Topics

• queues, topics, subscriptions, selectors, redelivery, and expiration
• uniform distributed queues and topics, members, forwarding, and load balancing
• quotas, thresholds, blocking send, flow control, paging, and message size
• file and JDBC stores, synchronous write policies, health, and recovery

Instructor Demonstration

Demonstrate queues, topics, subscriptions, selectors, redelivery, and expiration for a resilient enterprise messaging service designed for ordered delivery, failover, and controlled backlog recovery; capture the exact configuration, code, command, transaction, query, dashboard, model, schedule, or report evidence that proves the expected result.

Hands-On Exercise

Complete a controlled Oracle WebLogic Server 14c: JMS Administration exercise covering uniform distributed queues and topics, members, forwarding, and load balancing and quotas, thresholds, blocking send, flow control, paging, and message size; introduce an exception involving file and JDBC stores, synchronous write policies, health, and recovery, diagnose it from evidence, apply the smallest reversible correction, and rerun acceptance checks.

1. Confirm scope, prerequisites, identities, dependencies, data, risks, and expected outcome.
2. Perform the course-specific configuration, development, administration, analysis, or business-process workflow.
3. Capture commands, settings, records, logs, screenshots, reports, metrics, or test results.
4. Compare the observed result with acceptance criteria and document corrective or preventive action.

Scenario Analysis

• Identify the technical or business decision and the stakeholders affected by it.
• Compare security, performance, reliability, compliance, cost, usability, and support trade-offs.
• Define rollback, recovery, communication, evidence, ownership, and escalation requirements.

Troubleshooting Guidance

Diagnose issues involving queues, topics, subscriptions, selectors, redelivery, and expiration, uniform distributed queues and topics, members, forwarding, and load balancing, quotas, thresholds, blocking send, flow control, paging, and message size, file and JDBC stores, synchronous write policies, health, and recovery without making an unverified production change. Separate symptoms from causes, gather time-correlated evidence, test a reversible hypothesis, validate the correction, and record recurrence controls.

Validation Checklist

• The requirement, environment, inputs, dependencies, and expected result are documented.
• The result is reproducible and supported by product-specific evidence.
• Normal, boundary, failure, security, performance, and operational conditions are reviewed.
• Exceptions, rollback, ownership, support actions, and the next improvement priority are recorded.

Lesson Outcome

Learners can apply Queues, Topics, Durable Subscribers, Quotas, Paging, and Persistent Stores in a realistic Oracle WebLogic Server 14c: JMS Administration scenario and defend the result with documented evidence.