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One important strategy is to take a holistic view when addressing memory leaks. While optimizing memory usage is helpful in reducing the impact of leaks, it's equally important to examine the overall system architecture to discover the underlying cause of the problem. By doing so, engineers can identify potential areas of improvement to prevent memory leaks from occurring in the first place.
Another important step is to use monitoring and profiling tools to track down and resolve memory leaks. Pinterest's team leveraged a variety of tools, such as jMap, VisualVM, and htop, to monitor memory usage over time and identify patterns in the leak. Profiling libraries, including YourKit and JProfiler, were also invaluable in identifying objects that consumed large amounts of memory and improved the detection of the direct memory leak.
Finally, in the process of identifying and resolving memory leaks, it's essential for software engineers to remain open-minded and flexible in their approach. By trying different solutions and exploring various approaches, they can find the best solution for resolving memory leaks and ensuring greater stability for their software products.

In the end, identifying and addressing direct memory leaks is a complex issue that requires a combination of technical expertise, monitoring tools, and creative problem-solving. By taking a holistic approach and looking at the overall architecture of software systems, engineers can prevent memory leaks before they occur and improve the long-term reliability of software products.