Disconnect event not caught

[Galienna]

Hi,

The 3.0.0 release seems to have introduced a bug that wasn't there in 2.5.6.

Scenario

• Using the promise API
• Create a connection pool
• Get a connection
• Perform some requests
• Release connection
• Shutdown the DB server
• Error ER_CONNECTION_KILLED is sometimes caught in the error event of the connection, sometimes not
• Error ER_SOCKET_UNEXPECTED_CLOSE is sometimes caught in the error event of the connection, sometimes not
• One more ER_SOCKET_UNEXPECTED_CLOSE is raised but I'm unable to catch it, thus my node process crashes. It doesn't get caught by the error event handler that I added to the connection.

Exact same code and scenario works fine with 2.5.6

Good luck and thank you for the lib :)

[rusher]

i'm trying to reproduced the problem without success. Do you have any additional information ?
could you confirm that those event are set with poll 'connection' event, then connection 'error' event ? something like :

pool.on('connection', conn => {
      conn.on('error', (err) => {
        console.log(`connection ${conn.threadId} error `);
        console.log(err);
      })
    });

[rusher]

corrected with https://jira.mariadb.org/browse/CONJS-196. Will be part of 3.0.1 release