I'm using node-mysql
and most of the queries. Working. some queries not working. I tried every version of Node (from 0.5...) until (5.6.0), I also tried (4.0) and (4.1), Nothing helps.
I tried to change maually, and didn't work. I tried to change the sequence
file to: this._idleTimeout = -1;
and didn't help.
I read the issues and GitHub, and nothing helped.
I can try to fix it by myself, but I need more information. Where is the timeout, why? when? what is this type of message? Where is the timeout came from?
MYSQL_ERROR { [Error: Handshake inactivity timeout]
code: 'PROTOCOL_SEQUENCE_TIMEOUT', fatal: true,
timeout: 10000 }
Ok, the timeout comes from the Protocol.js file line:162. If you checkout node-mysql you'll see that it is a variable "timeout" for queries. If you set the timeout to something a lot higher than 10000, the default, then the error should go away. An example is
pool = require('mysql').createPool({
connectionLimit : 1000,
connectTimeout : 60 * 60 * 1000,
acquireTimeout : 60 * 60 * 1000,
timeout : 60 * 60 * 1000,
host : process.env.DB_HOST,
user : process.env.DB_USERNAME,
password : process.env.DB_PASSWORD,
database : process.env.DB_DATABASE
});
You can also edit the timeout in the Sequence.js file (node_modules/mysql/lib/protocol/sequence/Sequence.js)
this._timeout = 100000;
For those deploying on AWS
and experiencing this error, you'll need to make a change to the security group of your database/cluster and add an inbound rule
where the source
is the security group of your instance/s.
The inbound rule should look as follows:
Type: MySQL/Aurora
Protocol: TCP (default)
Port: 3306 (default)
Source: <security group of instance>
Description: <optional>
If you are using Amazon's services, I was able to resolve this by changing the allowed IP Addresses in the security settings or by changing the open connections ports.
.end() is non-blocking, but this may lead your code to the same issue that was in mine - I was just calling .end() w/o waiting the operation to actually complete.
To actually wait for the connection end you can't just await dbConn.end(), because .end() doesn't return a promise. What you need is to create a promise and return it. Like the following:
From
connection.end();
To this
connection.end(error => error ? reject(error) : resolve());
And for pool using
connection.release();
To this
connection.release(error => error ? reject(error) : resolve());
for those deploying on aws and heroku! enter in rds db instance settigns and change the inboud rule --> source: any..
Heroku dont provide a ip specific, remember!
for me it was to correct the 'select' statment to select where checking the ID column (the primary key) and not column that it's type varchar , for example : not work
select from users where userName = 'aa';
work
select from users where userID = 1;