I have to restart my server every two days to make jwt auth works

Question

I have my web application hosted in a Basic Shared droplet (2 vCPUs, 4 GB, 80 GB, 4 TB). The app is a reactjs in front and express node js back end with JWT for authentification. Everything works fine, but after two days, I’m not able to log in to the application because the token is not set in the storage. When I restart the app with the “PM2 restart server”, everything works as expected, but two days later, it’s not, and I have to go through the same process again.

Has someone experienced a similar problem? I don’t know if it pm2, the droplet or my app?

codeibrahima · Answer

Hello @denislavgavrilov ,

I find out that the issue is due to mongoose version and useUnifiedTopology in my mongoose dbConnect parameter. that look like this now :

mongoose
    .connect(db, {
      useNewUrlParser: true,
      connectTimeoutMS: 60000,
      socketTimeoutMS: 60000,
      useCreateIndex: true,
      useUnifiedTopology: false,
      useFindAndModify: false,
      keepAlive: true,
    })
    ...

I can’t reproduce it quickly because the issue appears randomly every 2-3 days when the server is running so I’m waiting to see if this change (that give me new scary warning in console) fix the error.

Thanks

Denislav Gavrilov · Answer

Hey @codeibrahima , Maybe we could go through some logging and see if we find something there. Do you have logging implemented? Could you post what you get with tail -n 20 /var/log/messages as well as running the same command for the log of your application? Best,Dennis

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I have to restart my server every two days to make jwt auth works

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