Tuesday, February 2, 2010

Fwd: cache causing JVM memory leak

Hi,

Someone told me cache can often lead to memory leak. I believe our system maintains several caches such as model-cache and circuit-design-cache(?). If one of these caches lacks a size limit or an effective expiry schedule, then the cache could grow indefinitely, someone told me.

Curious to know if we have anything to control it. Thanks.

tan bin

Update -- after talking to Vibrant, i realized cache is one of the most common, effective, yet complex techniques. Memory leak due to cache is growing in importance as competition grows and we move deeper into optimization.

Use SoftRef.

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http://www.linkedin.com/in/tanbin