BUG: could not auto reconnect in swoole

[getchu]

mysqli::prepare(): send of 102 bytes failed with errno=32 Broken pipe in file /Vendor/MysqliDb/MysqliDb.php line 1908
time : 18-01-15 09:14:54 message: Error while sending STMT_PREPARE packet. PID=1710 in file /Vendor/MysqliDb/MysqliDb.php line 1908

bug: connect timeout when execute some query in an thread for a long time .

[getchu]

file： MysqliDb.php
method： _prepareQuery

$stmt = $this->mysqli()->prepare($this->_query); //BUG：trigger ERROR here and print buffer
if ($stmt !== false) {
if ($this->traceEnabled)
$this->traceStartQ = microtime(true);
return $stmt;
}
if ($this->mysqli()->errno === 2006 && $this->autoReconnect === true && $this->autoReconnectCount === 0) {

//BUG: where is "autoReconnectCount =0" ，so it will connect one time, and never reconnect again!

  $this->connect($this->defConnectionName);
  $this->autoReconnectCount++;
  return $this->_prepareQuery();

}
$error = $this->mysqli()->error;
$query = $this->_query;
$errno = $this->mysqli()->errno;

[VonHirsch]

Note that autoReconnectCount is reset in reset() so it will try to connect once for each database operation.

I have created a fix for reconnect PR #793