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handle MySQL connection lost/server gone when starting a transaction

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This commit is contained in:
Guenter Obiltschnig
2016-09-15 12:01:30 +02:00
parent dcdcee5afa
commit e87a8fe962
1 changed files with 11 additions and 2 deletions
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13
Data/MySQL/src/SessionHandle.cpp
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@@ -150,8 +150,17 @@ void SessionHandle::close()
void SessionHandle::startTransaction()
{
if (mysql_autocommit(_pHandle, false) != 0)
throw TransactionException("Start transaction failed.", _pHandle);
int rc = mysql_autocommit(_pHandle, false);
if (rc != 0)
{
// retry if connection lost
int err = mysql_errno(_pHandle);
if (err == 2006 /* CR_SERVER_GONE_ERROR */ || err == 2013 /* CR_SERVER_LOST */)
{
rc = mysql_autocommit(_pHandle, false);
}
}
if (rc != 0) throw TransactionException("Start transaction failed.", _pHandle);
}