SanmuWangZJU commented on issue #3127: CPU LOAD more than 300% URL: https://github.com/apache/incubator-shardingsphere/issues/3127#issuecomment-535825085 Hi @tuohai666 , I find that org.apache.shardingsphere.core.parse.cache.SQLParseResultCache#cache is using new ReferenceMap<>(), which seems to be not thread safe (and not thread local). Could you please explain the reason for not using a thread safe cache ? Or do you have other strategy guarantee visiting this cache safely? Perhaps it's better to use a cache like com.google.common.cache.Cache or at least a thread safe map.
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