[CAMEL-8640] BacklogTracer allocates 100k elements for an array even it is not enabled

• Type: Improvement
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 2.15.1
• Fix Version/s: 2.15.3, 2.16.0
• Component/s: camel-core
• Estimated Complexity: Novice
• Assignee: Claus Ibsen
• Reporter: Mateusz Nowakowski
• Created: 15/Apr/15 10:42
• Updated: 04/May/15 17:44
• Resolved: 03/May/15 09:38

Description

By default each camel context has one BacklogTracer which is by default disabled.
However BacklogTracer contains a queue with

public static final int MAX_BACKLOG_SIZE = 100 * 1000;
private final Queue<DefaultBacklogTracerEventMessage> queue = new ArrayBlockingQueue<DefaultBacklogTracerEventMessage>(MAX_BACKLOG_SIZE);

The easiest way:
is it possible to replace it with LinkedBlockingQueue(int capacity)?

Ideally the object could be initialized only when it is enabled but it seems BacklogTracer is not fully encapsulated (the queue reference is maintained also outside BacklogTracer in BacklogTracerAdvice)