std::bad_alloc on 150 parallel connections

[muodov]

The following code raises std::bad_alloc on 151st iteration (32bit Ubuntu 12.04 with 4Gb RAM). I think 15 is not too many...

tdbs = []
for i in xrange(100000):
        print i
        db = umysql.Connection()
        db.connect(SQL_HOST, SQL_PORT, SQL_USER, SQL_PASSWD, SQL_DB)
        tdbs.append(db)

[Jahaja]

ultramysql will preallocate 20MB worth of transaction buffers for each connection. So it's likely that you're just running out of memory.