node.js mysql error 'ECONNRESET' while inserting

I am trying to insert a file of 50mb to mysql using node.js. I call stored procedure that takes the full content and inserts it (the whole 50MB at once). Version of mysql 2.13. For small file this code mostly works (some details are skipped in case something seems inconsistent). The error is observed only with a big file.

var mysql=require('mysql');
function InsertTrace(guid, device, testName,  testEvent, traceData) {

pool.query('call insert_trace(?,?,?,?,?)', [guid, device, testName, testEvent, traceData], function (err, results, fields) {
    if (err)
    {
        console.error("[DB]: Failed to insert trace data for " + guid + ", " + device + ", test " + testName + "/" + testEvent + " total bytes: " + traceData.length);
        console.error("[DB]: insert error:", err)
        return;
    }
});
}
var data = fs.readFileSync('big.json', 'utf8');
IraceTrace('99', 'ddd', 'test1', 'event15', data);

The error is:

{ Error: read ECONNRESET
    at exports._errnoException (util.js:1022:11)
    at TCP.onread (net.js:569:26)
    --------------------
    at Pool.query (mysql\lib\Pool.js:199:23)
     ...
    at Module._compile (module.js:570:32)
    at Object.Module._extensions..js (module.js:579:10)
    at Module.load (module.js:487:32)
    at tryModuleLoad (module.js:446:12)
    at Function.Module._load (module.js:438:3)
    at Module.runMain (module.js:604:10)
    at run (bootstrap_node.js:394:7)
  code: 'ECONNRESET',
  errno: 'ECONNRESET',
  syscall: 'read',
  fatal: true }

If the mysql max size was the problem I expect to see the mysql error, not connection reset so I can't figure out what the problem is.