Fix Bug : RemoveCachedBodyFilter does not release direct memory correctly resulting in a memory leak #2969#2971
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caixunshi wants to merge 1 commit intospring-cloud:3.1.xfrom
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@spencergibb why hasn't this PR request been addressed yet? Is there any issue with it? |
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Fixes #2969
RemoveCachedBodyFilter uses the remove method to remove CACHED_REQUEST_BODY_ATTR from the exchange object, but it cannot guarantee that the dataBuffer will be released correctly.
When calling ServerWebExchangeUtils.cacheRequestBody multiple times in the project to generate a nested multi-layer ServerHttpRequestDecorator, it will cause a memory leak and eventually throw an OutOfDirectMemoryError
So in RemoveCachedBodyFilter, it should be ensured that the cached dataBuffer is released correctly.
This PR contains a fix for this problem. The idea is to ensure that databuf is released correctly by judging the return value of release.
Please review this PR, if looks ok please approve it.