Dian Fay may be correct about buffer pool. But I don't think it can take 50 Gb of RAM. Can it be your application that extracts data from DB and holds it in memory? I bet it is, especially if it is not Node.js or PHP app, but persistent daemon-like e.g. Java app.
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Dian Fay may be correct about buffer pool. But I don't think it can take 50 Gb of RAM. Can it be your application that extracts data from DB and holds it in memory? I bet it is, especially if it is not Node.js or PHP app, but persistent daemon-like e.g. Java app.