Issue: atom get memory leak when using SSR

Next.js is in use, and the test applied filter() to atom get. For the test, 600 requests were sent for 1 minute.

version next 12.2.2 react 17.0.2 jotai 1.7.6

testing tool: k6

const options = {
  stages: [
    { duration: "1m", target: 600 },
    { duration: "1m", target: 600 },
    { duration: "1m", target: 600 },
    { duration: "1m", target: 600 },
    { duration: "1m", target: 600 },
  ],
};

Test

// _app.js
return (
  <Provider>
    <Component {...pageProps} />
  </Provider>
)

// component
const [readData] = useAtom(readDataAtom);

return (
  <div>
    <div>{JSON.stringify(readData)}</div>
   </div>
  );

// store
export const readDataAtom = atom((get) => {
  return get(dataAtom).modules.filter(({ moduleSeq }, i) => moduleSeq > i + 210);
});

Result

It started at 153 MB, but it is 269 MB even after 5 minutes. Why is there a memory leak? I want help. thanks

[leedoopal]

right! I think it’s a problem with next.js.

Thanks for helping with testing, and thanks for making jotai. I will use it well!

[leedoopal]

@dai-shi yes! I use .filter()